RoHS 2002/95/EC Vacuum Fluorescent Display Module Specification Model: CU20027-Y100 Specification No: DS-1571-0001-00 Date of Issue: January 29, 2009 (00) Revision: Published by NORITAKE ITRON CORP. / Japan http://www.noritake-itron.jp This specification is subject to change without prior notice. This product complies with RoHS Directive 2002/95/EC CU20027-Y100 Index. 1 General Description ................................................................................................................................3 1.1 Scope...............................................................................................................................................3 1.2 Features...........................................................................................................................................3 1.3 Hardware Configuration................................................................................................................4 1.3.1 Block Diagram..........................................................................................................................4 2 Electrical Specification...........................................................................................................................4 2.1 Absolute Maximum Ratings..........................................................................................................4 2.2 Electrical Ratings............................................................................................................................4 2.3 Electrical Characteristics...............................................................................................................5 3 Optical Specifications.............................................................................................................................6 4 Environmental Specifications...............................................................................................................6 5 Physical Specifications..........................................................................................................................6 6 Applicable Specifications......................................................................................................................6 7 Interface......................................................................................................................................................6 7.1 Parallel Interface.............................................................................................................................7 7.1.1 Basic Operation.........................................................................................................................7 7.1.2 Flowchart ..................................................................................................................................7 7.1.3 Interface Timing........................................................................................................................8 7.2 Serial Interface................................................................................................................................9 7.2.1 Basic Operation.........................................................................................................................9 7.2.2 Flowchart ..................................................................................................................................9 7.2.3 Asynchronous Serial Interface Timing....................................................................................10 7.2.3.1 Data write ..............................................................................................................................10 7.2.3.2 Data read...............................................................................................................................10 7.3 Reset Timing.................................................................................................................................11 8 Jumper Setting.......................................................................................................................................12 8.1 Jumper location............................................................................................................................12 8.1.1 Baud Rate Setting (for Asynchronous Serial Interface only)..................................................12 8.1.2 Test Mode................................................................................................................................12 9 Operating Mode......................................................................................................................................13 9.1 Direct Command Mode ...............................................................................................................13 9.2 User Set up Mode........................................................................................................................13 9.3 Serial OUT Mode..........................................................................................................................13 9.4 Test mode......................................................................................................................................13 10 Font Table Configuration.................................................................................................................14 11 Display Area-End of Line Behavior...............................................................................................15 12 Initial setting........................................................................................................................................16 13 Commands...........................................................................................................................................16 13.1 Command Configuration.............................................................................................................16 13.2 Command Set...............................................................................................................................17 13.3 Detail of Command Set...............................................................................................................18 13.3.1 Character display ....................................................................................................................18 13.3.2 Back Space..............................................................................................................................19 13.3.3 Horizontal Tab.........................................................................................................................19 13.3.4 Line Feed ................................................................................................................................20 13.3.5 Home Position.........................................................................................................................20 13.3.6 Display Clear ..........................................................................................................................21 - 1 - CU20027-Y100 13.3.7 Carriage Return.......................................................................................................................21 13.3.8 Underline cursor mode............................................................................................................21 13.3.9 Cursor off mode ......................................................................................................................21 13.3.10 Block cursor mode ..................................................................................................................21 13.3.11 Underline cursor blink mode...................................................................................................21 13.3.12 Cursor set ................................................................................................................................21 13.3.13 Initialize display......................................................................................................................22 13.3.14 RAM user font ........................................................................................................................22 13.3.15 Define RAM user font.............................................................................................................23 13.3.16 Delete RAM user font.............................................................................................................24 13.3.17 Character blink mode OFF......................................................................................................24 13.3.18 Character blink mode ON .......................................................................................................24 13.3.19 Specify quick write mode .......................................................................................................24 13.3.20 Specify International font set ..................................................................................................25 13.3.21 Specify flickerless write mode................................................................................................25 13.3.22 Blink speed control .................................................................................................................26 13.3.23 Underline display mode ON ...................................................................................................26 13.3.24 Underline display mode OFF..................................................................................................26 13.3.25 Insert character........................................................................................................................26 13.3.26 Delete character ......................................................................................................................27 13.3.27 Insert line ................................................................................................................................27 13.3.28 Delete line ...............................................................................................................................27 13.3.29 Reset........................................................................................................................................27 13.3.30 Specify character code type ....................................................................................................27 13.3.31 Over-write mode .....................................................................................................................28 13.3.32 Vertical scroll mode ................................................................................................................28 13.3.33 Horizontal scroll mode............................................................................................................28 13.3.34 Horizontal scroll speed............................................................................................................28 13.3.35 Brightness level setting ...........................................................................................................28 13.3.36 Wait.........................................................................................................................................29 13.3.37 Display blink...........................................................................................................................29 13.3.38 Screen saver ............................................................................................................................30 13.3.39 User set up mode start.............................................................................................................30 13.3.40 User set up mode end..............................................................................................................30 13.3.41 Define FROM user font ..........................................................................................................31 13.3.42 Read Status information..........................................................................................................32 13.3.43 Display Status information......................................................................................................32 13.3.44 Serial OUT mode start ............................................................................................................32 13.3.45 Serial OUT mode end .............................................................................................................33 13.3.46 Select / Deselect 5×8 Matrix font ...........................................................................................33 13.3.47 Select/Deselect Alternative Magnified Font ...........................................................................34 13.3.48 Font Magnification..................................................................................................................35 13.3.49 Individual Character Brightness Level Setting .......................................................................36 14 Pin Configuration...............................................................................................................................37 14.1 Parallel interface connecter (Fourteen through-holes / CN1)................................................37 14.2 Serial interface connector (Six through-holes / CN3).............................................................37 15 Firmware Version Notation..............................................................................................................37 16 Physical Dimensions.........................................................................................................................38 Notice for the Cautious Handling VFD Modules....................................................................................39 Revision Note..................................................................................................................................................40 - 2 - CU20027-Y100 1 General Description 1.1 Scope This specification covers the operation and operating requirements of the Vacuum Fluorescent Display (VFD) module CU20027-Y100. 1.2 Features • Functions o Character highlight o Easy to use ASCII commands and fonts. o Character Magnification o Screen Saver o Blink Action Command(Display or Character) • Display o Vivid green indication o Wider viewing angle 2 o High Brightness (Typ. 2000 cd/m ) o Brightness Levels: 8 levels of overall display brightness with 8 relative levels for each individual 5×8 Matrix • Font o New 5×8 Matrix Character Font o Many International Font Sets o RAM User-Definable Characters (16 characters) o FROM User-Definable Characters (224 characters) o 40 (20×2) Characters on the compact display area • Interface o Parallel Interface: i80 type 8bit bus(C MOS Signal level) o Serial Interface: Asynchronous(RS232 level) • Operation o DC 5V input o Wide Operation Temperature Range (−40 ~ +85ºC) - 3 - CU20027-Y100 1.3 Hardware Configuration The module consists of: 20 x 2 character Display (VFD) Refresh RAM Character generator DC/DC converter (Supply all necessary power for VFD) Display controller All necessary control logic circuits 1.3.1 Block Diagram Parallel IF Parallel IF Controller VFD Circuit Firmware Character font Serial IF Serial IF Flash-Memory Circuit (User font table) Jumper Swiitch VDD2 VCC DC/DC EF1 Note: Flash memory re-write rating Converter is approximately 10,000 times. GND EF2 2 Electrical Specification 2.1 Absolute Maximum Ratings Parameter SymbolMin.Typ.Max. Unit Power Supply Voltage V −0.3 - +6.0 V CC DC Logic Supply Voltage V −0.3 - V +0.3 V IN CC DC D0-D7, /WR, /RESET Logic Supply Voltage V −20.0 - +20.0 V IN DC SIN 2.2 Electrical Ratings Parameter SymbolMin. Typ. Max. Unit Power Supply Voltage V 4.75 5.0 5.25 V CC DC - 4 - CU20027-Y100 2.3 Electrical Characteristics Measuring Conditions: Ambient temperature = 25 ºC, V = 5.0 V CC DC Parameter SymbolMin. Typ. Max.UnitCondition Note ‘L’ Level D0-D7, /WR, I - - −0.15 mA V = 0V - IL IN Logic Input Current /RESET D0-D7 I - - 5.0 µA V = 5V - IH1 IN ‘H’ Level Logic Input Current /WR, /RESET I - - 0.25 µA V = 5V - IH2 IN Logic Input SIN R 3 - - KOhm - - IN Resistance D0-D7, /WR V 0 - 0.2×V V - - IL1 CC DC ‘L’ Level /RESET V 0 - 0.8 V - - Logic Input Voltage IL2 DC SIN V -15 - 0.5 V - - IL3 DC D0-D7, /WR, - - - V 0.8×V V V IH1 CC CC DC /RESET, ‘H’ Level Logic Input Voltage SIN 3.0 - +15 - V V - IH2 DC PBUSY V - - 0.1 V I = 50µA - OL1 DC OL ‘L’ Level Logic Output Voltage SBUSY V 0 - 0.5 V R = 3KOhm - OL2 DC L PBUSY V V −0.1 - - V I = −50µA - OH1 CC DC OH ‘H’ Level Logic Output Voltage SBUSY 4.0 - - V V V R = 3KOhm OH2 CC DC L Brightness - 240 300 (1) I -1 mA CC1 DC 100% Brightness I -1 - 200 250 mA (2) CC2 DC 100% Brightness Power Supply Current I -2 - 320 400 mA (1) CC1 DC 200% Brightness I -2 - 250 310 mA (2) CC2 DC 200% Power Save - 25 35 (3) I mA CC3 DC Mode Brightness - 1.2 1.5 W (1) 100% Power Consumption - Brightness - 1.6 2.0 W (1) 200% (1) I shows the current when all dots in the display are on. CC1 (2) I shows the current when all dots in the display are off. CC2 (3) I shows the current with the Power Save Mode. Power save mode is one of the options of CC3 “Screen saver” command. Please refer to “Screen saver” command at Page 30. Note: A slow start power supply may cause erroneous operations. I can be CC approximately twice the specified supply current at power on. - 5 - CU20027-Y100 3 Optical Specifications 2 2 Luminance: Minimum 350 cd/m , typically 1000 cd/m (100% brightness) 2 Typically 2000 cd/m (200% brightness) Color of illumination: Green (Blue Green) 4 Environmental Specifications Operating temperature: −40 to +85 ºC Storage temperature: −40 to +85 ºC Operating humidity: 20 to 80 % R.H (non-condensing) Storage humidity: 20 to 80 % R.H (non-condensing) Vibration: 10-55-10Hz, all amplitude 1mm, 30 minutes, X-Y-Z (non-operating) 2 Shock: 392m/s (40G) 9ms X-Y-Z, 3 times each direction (non-operating) 5 Physical Specifications Number of characters: 40（20 characters x 2 lines） Matrix format: 5 × 8 dots Display area: 73.4 x 15.0 mm (X × Y) Character size: 2.72 x 7.19 mm (X × Y) Character pitch: 3.72 mm Line pitch: 7.81 mm Dot size: 0.44 x 0.785 mm (X × Y) Dot pitch: 0.57 x 0.915 mm (X × Y) Weight: Approximately 48 g 6 Applicable Specifications Applicable reliability spec: TT-99-3102 Applicable production spec: TT-98-3413 7 Interface Parallel Interface: i80 type 8bit bus(C MOS Signal level) Serial Interface: Asynchronous(RS232 level) The module cannot receive both serial and parallel data at the same time. 8 bit Parallel Interface Asynchronous Serial Interface 8bit DATA SIN Host Y series Host Y series WR System Display System Display PBUSY SBUSY Module Module Monitoring the busy line is strongly recommended, because it prevents data loss and minimizes a waiting time to write next data. - 6 - CU20027-Y100 7.1 Parallel Interface 7.1.1 Basic Operation Data (D0-D7) has to be set prior to a rising edge of /WR line, and the data is clocked in on the rising edge of /WR line. During data execution, the parallel busy line is high (PBUSY=1). Writing data when PBUSY = 1 causes data loss, so please write data when PBUSY = 0. 7.1.2 Flowchart Start to send data NO PBUSY = 0? YES /WR = 0 Set D0-D7 /WR = 1 Wait (Min. 20uS) NO Continue to send data ? YES End - 7 - CU20027-Y100 7.1.3 Interface Timing Min. 100ns 1 /WR 0 Min. Min. 50ns 20000ns 1 D0-D7 0 Max. Min. 40ns 0ns 1 PBUSY 0 Note: Monitoring the parallel busy line (PBUSY) is strongly recommended, because it prevents data loss and minimizes a waiting time to write next data. Please write data when PBUSY = 0. - 8 - CU20027-Y100 7.2 Serial Interface 7.2.1 Basic Operation Default setting: Asynchronous Serial Interface (Baud rate = 38,400bps) The capacity of the receiving buffer is 64 bytes. The relationship between SBUSY and the receiving buffer is as follows; Remaining space of receiving buffer SBUSY 0 -> 1 16 byte or less SBUSY 1 -> 0 24 byte or more Writing data when SBUSY = 1 may cause data loss, so please write data when SBUSY = 0. 7.2.2 Flowchart Start to send data NO SBUSY = 0? YES Send one byte data NO Continue to send data ? YES End - 9 - CU20027-Y100 7.2.3 Asynchronous Serial Interface Timing 7.2.3.1 Data write 0 SIN 1 Max. Min. 30μs 0μs 0 SBUSY 1 Protocol: 9,600 ～ 115,200bps Baud rate (Selectable by Jumper) Default: 38,400bps Parity None Format Start (1bit)＋Data (8bit)＋Stop (1bit) Handshake SBUSY Note: Monitoring the serial busy line (SBUSY) is strongly recommended, because it prevents data loss and minimizes a waiting time to write next data. Please write data when SBUSY = 0. 7.2.3.2 Data read This is used for Read states information command only. 0 SIN 1 Min. Min. Min. 0μs 20μs 0μs 0 SOUT 1 Protocol: 9,600 ～ 115,200bps Baud rate (Selectable by Jumper) Default: 38,400bps Parity None Format Start (1bit)＋Data (8bit)＋Stop (1bit) Handshake None Note: Output data is transferred collectively from a VFD module, so a receiving buffer may be required on a host system to prevent data loss. - 10 - CU20027-Y100 7.3 Reset Timing Reset pulse (active low) should be longer than 1ms. The module sets the SBUSY/PBUSY line upon receipt of Reset signal and clears the line when ready to receive data. Min. 1ms /RESET Max. 100ms PBUSY SBUSY Min. 0μs SIN Min. 0μs /WR - 11 - CU20027-Y100 8 Jumper Setting 8.1 Jumper location Components side J2* J1 J0 BT* JT CN1 CN3 Note: Jumper “J2” and “BT” is for factory use only. Please do not change. 8.1.1 Baud Rate Setting (for Asynchronous Serial Interface only) Baud Rate J0 J1 38,400bps (Default) OPEN OPEN 19,200bps SHORT OEPN 9,600bps OPEN SHORT 115,200bps SHORT SHORT 8.1.2 Test Mode Refer to “9.4 Test mode”. Mode JT Direct Command OPEN Mode (Default) Test Mode SHORT - 12 - CU20027-Y100 9 Operating Mode This module has the following operating modes which are selectable by commands or jumper setting. Power OPEN Initial Direct Commnad JT ON State Mode SHORT NO Asynchronous Serial Interface YES Test Mode Serial OUT Mode User Set up Mode 9.1 Direct Command Mode The module accepts data and all commands except “13.3.40 User setup mode end”, “13.3.41 Define FROM user font”, “13.3.42 Read status information”, “13.3.43 Display status information”, and “13.3.45 Serial OUT mode end”. 9.2 User Set up Mode Under this mode, an on-board flash memory is accessible. The module accepts only three commands: “13.3.40 User set up mode end“, “13.3.41 Define FROM user font” and “13.3.43 Display status information”. 9.3 Serial OUT Mode Under this mode, status information is readable via Asynchronous Serial Interface. The module accepts only two commands: “13.3.42 Read status information” and “13.3.45 Serial OUT mode end”. 9.4 Test mode The module does not accept any commands but displays test-patterns. Test purpose only. - 13 - CU20027-Y100 10 Font Table Configuration This display's Font Table (20h-FFh) is configured as follows. The configuration can be changed by command. The Font Table used in the default state is as follows. 13.3.20 Specify International font set 13.3.30 Specify character code type 1Bh 52h n 1Bh 74h n For font pattern details, refer to font spec. DS-1519-0002-xx. - 14 - CU20027-Y100 11 Display Area-End of Line Behavior In most cases, a cursor moves to the next position after a character is displayed on the current cursor position, but some exceptional cases exist. At end of line, the next behavior of a display area depends on the current cursor position, character size and display mode. Display area behaviors for some magnified character sizes are as follows: Right Most Column Regular size (1×1) characters (Over-write mode) Lower Most Row Current Cursor Position The next cursor position is here. Right Most Column 1×2 Magnified characters (Over-write mode) Lower Most Row Current Cursor Position The next cursor position is here. 2×2 Maginified characters (Over-write mode) Right Most Column Lower Most Row The next cursor position is here. Current Cursor Position Right Most Column Dead Space 2×2 Maginified characters (Over-write mode) Lower Most Row The next cursor position is here. Current Cursor Position The next 2×2 magnified character is displayed here. It is possible to display a regular size (1×1) characrer in the dead space. - 15 - CU20027-Y100 12 Initial setting Initial states are set as follows. External reset or "User set up “Initialize display” Power on "Reset" mode end" command command command Cursor position Home position RAM user font Disable Cursor display Underline cursor Display mode Over-write mode Write mode Quick write mode International font set America Character code type PC437(USA – Euro std) Character blink mode Character blink mode OFF Underline display mode Underline display mode OFF Individual Character Level 8 (100%) Brightness Level Setting Brightness level 100% Blink speed 40h Horizontal scroll speed Instantaneous (n=00h) RAM User font data Cleared Blink display action － Stopped (at c=00h) Select/Deselect 5×8 Matrix 5×8 Matrix font font Select/Deselect Alternative Normal font Magnified Font Font Magnification x=1, y=1 Baud rate (J0, J1) Re-loaded Not re-loaded Re-loaded Re-loaded Test mode (JT) Re-loaded Not re-loaded Re-loaded Re-loaded 13 Commands This display's command is configured as following group. 13.1 Command Configuration 08H-16H Control command 1BH ... ESC command 1FH ... User Setup command ― 1FH 28H 61H ... ― Action command ― 1FH 28H 65H ... ― Operation mode-related command ― 1FH 28H 67H ... ― Character-related command 20H-FFH Character code - 16 - CU20027-Y100 13.2 Command Set Command Name Hex Code BYTE1 BYTE2 BYTE3 BYTE4 Parameter Back Space 08h － － － － Horizontal Tab 09h － － － － Line Feed 0Ah － － － － Home Position 0Bh － － － － Display Clear 0Ch － － － － Carriage Return 0Dh － － － － Underline cursor mode 13h － － － － Cursor off mode 14h － － － － Block cursor mode 15h － － － － Underline cursor blink mode 16h － － － － RAM user font 25h n － － c1 c2 Define RAM user font 26h 01h － [x1 d1…d(a X x1)]… [xk d1…d(a X xk)] Delete RAM user font 3Fh 01h c － Initialize display 40h － － － Character blink mode OFF 41h － － － Character blink mode ON 42h － － － Specify quick write mode 45h － － － Specify International font set 52h － － n 1Bh Specify flickerless write mode 53h － － － Blink speed control 54h s － － Underline display mode ON 55h － － － Underline display mode OFF 57h － － － Insert character F3h － － Delete character F4h － － Insert line F5h 58h － － Delete line F6h － － Reset FFh － － Specify character code type 74h n － － Over-write mode 01h － － － Vertical scroll mode 02h － － － Horizontal scroll mode 03h － － － Cursor set 24h xL 00h yL 00h － － Wait 01h t 61h Display blink 11h p t1 t2 c Screen saver 40h p User set up mode start 01h d1 d2 User set up mode end 02h d1 d2 d3 Define FROM user font 14h P(20h-1) P(20h-2)...P(FFh-5) Read Status information 65h 40h a [b c d e] 1Fh Display Status information 41h a 28h Serial OUT mode start 83h d1 d2 Serial OUT mode end 84h d1 d2 d3 Select / Deselect 5×8 Matrix font 04h d Select/Deselect Alternative 06h s Magnified Font 67h Font Magnification 40h x y Individual Character Brightness 50h d1 d2 d3 Level Setting Brightness level setting 58h n － － Horizontal scroll speed 73h － － n Character display 20-FFh － － － － - 17 - CU20027-Y100 13.3 Detail of Command Set 13.3.1 Character display Code: 20h – FFh Please refer to “11 Display Area-End of Line Behavior” before reading. Function: Display a character on the current cursor position. The details of operation are as follows: When “Over-write mode” is selected. Current cursor position Operations X position (Column) Y position (Row) 1. Display a character on the current cursor position. Excluding right most column − 2. Increment the cursor to the right by one column. 1. Display a character on the current cursor position. Excluding lower most row 2. Move the cursor to left most column of next lower row. Right most column 1. Display a character on the current cursor position. Lower most row 2. Move the cursor to the home position (left most column of upper most row). When “Vertical scroll mode” is selected. Current cursor position Operations X position (Column) Y position (Row) 1. Display a character on the current cursor position. Excluding right most column − 2. Increment the cursor to the right by one column. 1. Display a character on the current cursor position. Excluding lower most row 2. Move the cursor to left most column of next lower row. 1. Display a character on the current cursor position. Right most column 2. Clear upper most row. 3. Shift all rows up by one to make lower most row Lower most row clear. 4. Move the cursor to left most column of lower most row. When “Horizontal scroll mode” is selected. Cursor position Operations X direction Y direction 1. Display a character on the current cursor position. Excluding right most column - 2. Increment the cursor to the right by one column. 1. Display a character on the current cursor position. Right most column - 2. Move to Scroll ON mode. Note: The cursor does not move. Operations 1. Shift only the current row left by one column to make a space for the next character. Scroll ON mode 2. Display a character on the space Note: The cursor does not move. Note: Scroll ON mode is cancelled if any of the following commands are executed: “Back Space”, “Line Feed”, “Home Position”, “Display Clear”, “Carriage Return”, “Cursor Set”, “Over-write mode”, “Vertical scroll mode”, “Horizontal scroll mode”, “Insert character”, “Delete character”, “Insert line” and “Delete line”. - 18 - CU20027-Y100 13.3.2 Back Space Code: 08h Please refer to “11 Display Area-End of Line Behavior” before reading. Function: The cursor moves to the left by one character. The details of operation are as follows: When “Over-write mode” or “Vertical scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) Excluding left most column - 1. Decrement the cursor to the left by one column. 1. Move the cursor to right most column of next upper Excluding upper most row Left most column row. Upper most row No operation When “Horizontal scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) Excluding left most column - 1. Decrement the cursor to the left by one column. Left most column - No operation 13.3.3 Horizontal Tab Code: 09h Please refer to “11 Display Area-End of Line Behavior” before reading. Function: The cursor moves to the right by one character. The details of operation are as follows: When “Over-write mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) Excluding right most column - 1. Increment the cursor to the right by one column. 1. Move the cursor to left most column of next lower Excluding lower most row row. Right most column 1. Move the cursor to the home position (left most Lower most row column of upper most row). When “Vertical scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) Excluding right most column - 1. Increment the cursor to the right by one column. 1. Move the cursor to left most column of next lower Excluding lower most row row. 1. Clear upper most row. Right most column 2. Shift all rows up by one to make lower most row Lower most row clear. 3. Move the cursor to left most column of lower most row. - 19 - CU20027-Y100 When “Horizontal scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) Excluding right most column - 1. Increment the cursor to the right by one column. 1. Shift only the current row left by one column. Right most column - 2. Keep executing this operation (Scroll ON mode). Note: The cursor does not move. Note: Scroll ON mode is cancelled if any of the following commands are executed: “Back Space”, “Line Feed”, “Home Position”, “Display Clear”, “Carriage Return”, “Cursor Set”, “Over-write mode”, “Vertical scroll mode”, “Horizontal scroll mode”, “Insert character”, “Delete character”, “Insert line” and “Delete line”. 13.3.4 Line Feed Code: 0Ah Please refer to “11 Display Area-End of Line Behavior” before reading. Function: The cursor moves to next lower line. The details of operation are as follows: When “Over-write mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) 1. Move the cursor to the same column of next lower Excluding lower most row row. - 1. Move the cursor to the home position (left most Lower most row column of upper most row). When “Vertical scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) 1. Move the cursor to the same column of next lower Excluding lower most row row. 1. Clear upper most row. - 2. Shift all rows up by one to make lower most row Lower most row clear. Note: The cursor does not move. When “Horizontal scroll mode” is selected. Current cursor position Operations X direction (Column) Y direction (Row) - - No operation 13.3.5 Home Position Code: 0Bh Function: Cursor moves to the home position. (the left end of top line). - 20 - CU20027-Y100 13.3.6 Display Clear Code: 0Ch Function: Display is cleared and cursor moves to home position. 13.3.7 Carriage Return Code: 0Dh Function: Cursor moves to left end of same line. 13.3.8 Underline cursor mode Code: 13h Function: Cursor is displayed as underline. 13.3.9 Cursor off mode Code: 14h Function: Cursor display is OFF. 13.3.10 Block cursor mode Code: 15h Function: Cursor is displayed as a block, blinking. Blinking speed can be varied by “Blink Speed Control” command. 13.3.11 Underline cursor blink mode Code: 16h Function: Cursor is displayed as underline, blinking. Blinking speed can be varied by “Blink Speed Control” command. 13.3.12 Cursor set Code: 1Fh 24h xL 00h yL 00h xL: Cursor position x Lower byte (1 char /unit) yL: Cursor position y Lower byte (1 line /unit) Definable area: 0 (00h) ≦ xL ≦ 19 (13h) 0 (00h) ≦ yL ≦ 1 (01h) Function: The cursor moves to the specified X, Y position. If the specified X, Y position (X, Y, either or both) is outside the definable area, the command is ignored, and the cursor remains in the same position. - 21 - CU20027-Y100 x： y： 00h 01h ･･･ 12h 13h □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ 00h □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ ･･････ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ 01h □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ 13.3.13 Initialize display Code: 1Bh 40h Function: Clear display and return settings to initial state. Software settings return to power-on state. Jumper settings are not re-loaded 13.3.14 RAM user font Code: 1Bh 25h n Function: Enable or disable for RAM user font. n = 01h, 31h: Enable (If RAM user font is not defined for a character code, built-in character is displayed) n = 00h, 30h: Disable (RAM user font already defined are not affected) Initial value: n = 00h Characters already displayed are not affected. In case of user font enable (n=01h, 31h), RAM user font is used for character codes defined using "Define RAM user font" command regardless of the state of various other settings. - 22 - CU20027-Y100 13.3.15 Define RAM user font Code: 1Bh 26h a c1 c2 [x1 d1…d(a×x1)]…[xk d1…d(a×xk)] a: Select character type c1: Start character code c2: End character code x: Number of dot for X direction d: Defined data Definable area: a = 1 (01h) 32 (20h) ≦ c1 ≦ c2 ≦ 255 (FFh) x = 5 (05h) 0 (00h) ≦ d ≦ 255 (FFh) k = c2 - c1 + 1 Function: Define user font into RAM. A maximum of 16 characters may be defined. After the first 16 are defined, any additional user font characters required must replace one already defined. To display RAM user font characters, execution of “Define RAM user font” and “RAM user font” command is required. If a RAM user font character that is currently being displayed is re-defined, the currently-displayed character also changes to the new RAM user font character. < RAM User font data format> 5x8 dot assignment P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 P33 P34 P35 P36 P37 P38 P39 P40 B7(MSB) B6 B5 B4 B3 B2 B1 B0(LSB) 1st byte P8 P7 P6 P5 P4 P3 P2 P1 2nd byte P16 P15 P14 P13 P12 P11 P10 P9 3rd byte P24 P23 P22 P21 P20 P19 P18 P17 4th byte P32 P31 P30 P29 P28 P27 P26 P25 5th byte P40 P39 P38 P37 P36 P35 P34 P33 - 23 - CU20027-Y100 13.3.16 Delete RAM user font Code: 1Bh 3Fh a c a: Select character c: Character code to delete Definable area: a = 1 (01h) 32 (20h) ≦ c ≦ 255 (FFh) Function: Delete defined RAM user font character. The built-in character is displayed after this command is executed. If the RAM user font character is currently being displayed, the display changes to built-in character (according to the current settings for “Specify international font set” and “Specify character code type” command). This command is ignored if character code for RAM user font is not defined. 13.3.17 Character blink mode OFF Code: 1Bh 41h Function: Cancel character blink mode. Blinking stops for characters written after this command is executed. Characters already displayed are not affected. 13.3.18 Character blink mode ON Code: 1Bh 42h Function: Specifies character blink mode. Blinking starts for characters written after this command is executed. Characters already displayed are not affected. Blinking speed can be varied by “Blink speed control” command. 13.3.19 Specify quick write mode Code: 1Bh 45h Function: Specifies quick write mode. Quick data write with minimum BUSY time will be provided by this mode because data acceptance is given priority over refreshing of the screen. Note: Within this mode, continuous high speed data write may cause display to flicker. Blinking speed may deviate from set speed. The figure in 13.3.21 Specify flickerless write mode shows the difference between Flickerless Mode and Quick Write Mode. - 24 - CU20027-Y100 13.3.20 Specify International font set Code: 1Bh 52h n n Font set Definable area: 0 (00h) ≦ n ≦ 13 (0Dh) 00h America 01h France Default: n = 0 (00h) 02h Germany Function: Select international font set. 03h England Does not affect characters already displayed. 04h Denmark 1 05h Sweden Note: Refer to 10 Font Table Configuration at page 14. 06h Italy 07h Spain1 08h Japan 09h Norway 0Ah Denmark2 0Bh Spain2 0Ch Latin America 0Dh Korea 13.3.21 Specify flickerless write mode Code: 1Bh 53h Function: Specifies flickerless write mode. Within flickerless mode, although BUSY might become longer, flicker-less high-speed continuous data write can be achieved since refreshing of screen is given priority over data acceptance. Note: The following figure shows the difference between Flickerless Mode and Quick Write Mode. Refer to 13.3.19 Specify quick write mode. Command/ Command/Data 1 Data 2 Flickerless Mode Screen Refreshing S S S Command/data T T T Command/ Command/Data 1 O O O Data 2 processing P P P Quick Write Mode Screen Refreshing Command/data Command/ Command/Data 1 Data 2 processing - 25 - CU20027-Y100 13.3.22 Blink speed control Code: 1Bh 54h s s: Blinking speed Definable area: 0 (00h) ≦ s ≦ 255 (FFh) 00h, FFh ：128×13.5ms (Typ.) FEh, FDh：127×13.5ms (Typ.) : : 02h, 01h ：1×13.5ms (Typ.) Default: s = 40h (32 X 13.5ms) Function: Specifies blinking speed for block cursor, underline cursor blink, and character blink. 13.3.23 Underline display mode ON Code: 1Bh 55h Function: Specifies underline display mode. Characters written after this command are displayed with underline. Characters already displayed are not affected. Note: The underline changes an impression of characters on a display. Please refer to the following sample pictures. 5×8 font without underline 5×8 font with underline 5×7 font with underline 13.3.24 Underline display mode OFF Code: 1Bh 57h Function: Cancel underline display mode. Characters written after this command are displayed with no underline. Characters already displayed are not affected. 13.3.25 Insert character Code: 1Bh 58h F3h Function: Characters from cursor position to right end of same line move to the right by one character. The right-most character is discarded. One-character blank (space) is set at cursor position. Cursor does not move. Command is ignored if there is insufficient space in the x and/or y direction for one character at the current cursor position. - 26 - CU20027-Y100 13.3.26 Delete character Code: 1Bh 58h F4h Function: Character at cursor position is deleted, and display from there to right end of same line moves to the left by one character. One-character blank (space) is set at right end of same line. Cursor does not move. Command is ignored if there is insufficient space in the x and/or y direction for one character at the current cursor position. 13.3.27 Insert line Code: 1Bh 58h F5h Function: Display contents for the line of the current cursor position, and all lower lines, are shifted down by one line. The line of the current cursor position is blanked (space), and cursor position is set to left end of same line. Display contents in the bottom line are discarded. Command is ignored if there is insufficient space in the x and/or y direction for one character at the current cursor position. 13.3.28 Delete line Code: 1Bh 58h F6h Function: The line of the current cursor position is deleted, and the below display is moved up by one line. Cursor position does not change. Bottom line is blanked (space). Command is ignored if there is insufficient space in the x and/or y direction for one character at the current cursor position. 13.3.29 Reset Code: 1Bh 58h FFh Function: Transition to state immediately after power-on. Jumper settings are re-loaded; baud rate (for asynchronous serial), and test mode setting. 13.3.30 Specify character code type n Font code type Code: 1Bh 74h n 00h PC437(USA – Euro std) Definable area: n = 0(00h), 1(01h), 2(02h), 3(03h), 4(04h), 01h Katakana – Japanese 5(05h), 16(10h), 17(11h), 18(12h), 02h PC850 (Multilingual) 03h PC860 (Portuguese) 19(13h), 255(FFh) 04h PC863 (Canadian-French) Default: n = 0 05h PC865 (Nordic) Function: Selects font code 10h WPC1252 Characters already displayed are not affected. 11h PC866 (Cyrillic #2) 12h PC852 (Latin 2) Note: Refer to 10 Font Table Configuration at page 14. 13h PC858 FFh FROM User font table - 27 - CU20027-Y100 13.3.31 Over-write mode Code: 1Fh 01h Function: Overwrite or replace an existing character. After replacing the character at right most column of lower most row, move the cursor to the home position. Note: For further information of this command, please refer to “13.3.1 Character display”, “13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”. 13.3.32 Vertical scroll mode Code: 1Fh 02h Function: Overwrite or replace an existing character. After replacing the character at right most column of lower most row, shift all rows up by one to make lower most row clear. Note: For further information of this command, please refer to “13.3.1 Character display”, “13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”. 13.3.33 Horizontal scroll mode Code: 1Fh 03h Function: Overwrite or replace an existing character. After replacing the character at right most column of any row, shift only the current row left by one column to make a space for the next character. Note: For further information of this command, please refer to “13.3.1 Character display”, “13.3.2 Back Space”, “13.3.3 Horizontal Tab” and “13.3.4 Line Feed”. 13.3.34 Horizontal scroll speed Code: 1Fh 73h n Definable area: 0 (00h) ≦ n ≦ 31 (1Fh) If n=0 is specified, scrolling is Default: n = 0 (00h) Speed appeared by character n 00h Instantaneous Note: Next command is not executed until 01h – 1Fh n×13.5ms (Typ.) scrolling action is finished. 13.3.35 Brightness level setting Code: 1Fh 58h n n : Brightness level setting n Brightness level 01h or 31h 25 % Definable area: 1 (01h) ≦ n ≦ 8 (08h)、49 (31h) ≦ n ≦ 56 (38h) 02h or 32h 50 % Default: n = 4 (04h) 03h or 33h 75 % Function: Specify display brightness level. 04h or 34h 100 % 05h or 35h 125 % 06h or 36h 150 % 07h or 37h 175 % 08h or 38h 200 % - 28 - CU20027-Y100 13.3.36 Wait Code: 1Fh 28h 61h 01h t t: Wait time Definable area: 0 (00h) ≦ t ≦ 255 (FFh) Function: Wait for the specified period of time. Command and data processing is suspended. Wait time = t X approx. 0.5sec 13.3.37 Display blink Code: 1Fh 28h 61h 11h p t1 t2 c p: Blink pattern t1: Normal display time t2: Blank display time c: Number of repetition Definable area: 0 ≦ p ≦ 1 p=0: A display is not affected. p=1: Repeat blink display with normal and blank display 1 (01h) ≦ t1 ≦ 255 (FFh) 1 (01h) ≦ t2 ≦ 255 (FFh) 0 (00h) ≦ c ≦ 255 (FFh) Function: Blink display action Blink pattern specified by “p”. Time specified by “t1”, “t2”, and repeat Blink display A : t1 X 13.5 ms (Typ.) Normal display B : t2 X 13.5 ms (Typ.) Blank display This command does not affect the display memory. If c=0 is specified, blinking continues during subsequent command/data processing, until c=1 – 255 or Initialize command is specified. If c=1 – 255 is specified, blink display is repeated 1 – 255 times while command/data execution is stopped. After display blinking is ended, normal display and command/data execution is resumed. During display blinking, Block cursor, Underline cursor blink and Character blink stops. After blink action, blinking speed for Block cursor, Underline cursor blink and Character blink change to t1 and t2 as set in blink action command. - 29 - CU20027-Y100 13.3.38 Screen saver Code: 1Fh 28h 61h 40h p p: Screen saver mode Definable area: 0 (00h) ≦ p ≦ 3 (03h), 48 (30h) ≦ p ≦ 51 (33h) p=00h or 30h: Power OFF (display OFF, Power save mode) p=01h or 31h: Power ON (display ON) p=02h or 32h: All dots OFF p=03h or 33h: All dots ON Function: Control power ON or OFF, and start screen saver mode. p=00h, 01h, 30h, 31h: Control power ON or OFF. This is applied until this command is re-specified p=02h, 03h, 32h, 33h: Start screen saver mode. When next command or data is inputted, screen saver is cancelled, and previous display condition is resumed. All dots ON is at gray-shade level 8 (100%), regardless of the setting before Screen saver action. 13.3.39 User set up mode start Code: 1Fh 28h 65h 01h 49h 4Eh Definable area: d1 = 49h （Character "I"） d2 = 4Eh （Character "N"） Function: Start user set up mode. This command is only valid in Direct Command mode. Display screen is cleared and normal commands stop being accepted. 13.3.40 User set up mode end Code: 1Fh 28h 65h 02h 4Fh 55h 54h Definable area: d1 = 4Fh （Character "O"） d2 = 55h （Character "U"） d3 = 54h （Character "T"） Function: End user set up mode, and software reset of display is executed. This command is only valid in user setup mode. After this command is executed, software reset is executed, the receiving buffer is cleared, and all settings and display are reset to a power-on condition. Jumper settings are re-loaded; baud rate (for asynchronous serial), and test mode setting. - 30 - CU20027-Y100 13.3.41 Define FROM user font Code: 1Fh 28h 65h 14h P(20h-1) P(20h-2)…P(FFh-5) P: Definition data Definable area: 0 (00h) ≦ P ≦ 255 (FFh) (20h-1)...P(20h-5)......P(FFh-5) 5 Bytes / font x 224 characters (1120 bytes) Function: Define the 1 byte user font to the user font table in FROM. All 224 characters should be defined at once; it is not possible to only define some part of the FROM user font address space. Contents of FROM user font table are not defined when shipped. This command is only valid in user setup mode. Data defined by this command is retained even if power is turned off. Display power is switched OFF during processing of this command. The display screen is cleared and display power is turned on again after this command is executed. To display FROM user font characters, "Specify character code type" command (n=FFh) must be executed. Please follow the procedures to define and display FROM user font characters. (1) “User set up mode start” command Code: 1Fh 28h 65h 01h 49h 4Eh (2) “Define FROM user font“ command Code: 1Fh 28h 65h 14h P(20h-1) P(20h-2)…P(FFh-5) (3) “User set up mode end“ command Code: 1Fh 28h 65h 02h 4Fh 55h 54h (4) “Specify character code type“ command Code: 1Bh 74h FFh 5x8 dot assignment P1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 P23 P24 P25 P26 P27 P28 P29 P30 P31 P32 P33 P34 P35 P36 P37 P38 P39 P40 B7(MSB) B6 B5 B4 B3 B2 B1 B0(LSB) P(XXh-1) P8 P7 P6 P5 P4 P3 P2 P1 P(XXh-2) P16 P15 P14 P13 P12 P11 P10 P9 P(XXh-3) P24 P23 P22 P21 P20 P19 P18 P17 P(XXh-4) P32 P31 P30 P29 P28 P27 P26 P25 P(XXh-5) P40 P39 P38 P37 P36 P35 P34 P33 - 31 - CU20027-Y100 13.3.42 Read Status information Code: 1Fh 28h 65h 40h a [ b c d e ] Definable area: a =2 (02h), 32 (20h), 48 (30h), 128 (80h) a= 02h : Firmware version information (b, c, d, e are not used) a= 20h : Memory checksum information 0000h ≦ ( b + c x 100h ) ≦ FFFFh : Start address 0000h ≦ ( d + e x 100h ) ≦ FFFFh : Data length a= 30h : Product type information (b, c, d, e are not used) a= 80h : User font information (c, d, e are not used) 20h ≦ b ≦ FFh ：Character code Function: Respond with the requested display status information. The following data are sent from Asynchronous serial interface This command is only valid in Serial OUT mode. Send data Hex Number of data 1: Header 28h 1byte 2: Identifier 1 65h 1byte 3: Identifier 2 40h 1byte 4: Data 00h～FFh a = 02h : 4 bytes a = 20h : 4 bytes a = 30h : 11 bytes a = 80h : 5 bytes 13.3.43 Display Status information Code: 1Fh 28h 65h 41h a Definable area: a =2 (02h), 32 (20h), 33 (21h) a= 02h : Firmware version a= 20h : Firmware checksum a= 30h : User font table checksum ［P(20h-1)…P(FFh-5)］ Function: Display on home position the requested status information. This command is only valid in user setup mode. 13.3.44 Serial OUT mode start Code: 1Fh 28h 65h 83h d1 d2 Definable area: d1 = 49h （Character "I"） d2 = 4Eh （Character "N"） Function: Switch SBUSY to Serial OUT and start “Serial OUT mode”. This command is only valid when Asynchronous serial interface is selected and mode is Direct Command mode. Display screen is cleared and normal commands stop being accepted. Wait at least 5ms after sending 4Eh ("N") before sending next data. During Serial OUT mode, do not use SBUSY for communication flow control. - 32 - CU20027-Y100 13.3.45 Serial OUT mode end Code: 1Fh 28h 65h 84h d1 d2 d3 Definable area: d1 = 4Fh （Character "O"） d2 = 55h （Character "U"） d3 = 54h （Character "T"） Function: Switch Serial OUT to SBUSY and start “Direct Command mode”. This command is only valid in Serial OUT mode. After “Serial OUT mode end” command is executed, SBUSY=0 (READY) until receipt of next data. Wait at least 5ms after sending 54h ("T") before sending next data. 13.3.46 Select / Deselect 5×8 Matrix font Code: 1Fh 28h 67h 04h d d: Select / Deselect 5×8 Matrix font Definable area: 128 (80h) ≦ d ≦ 129 (81h) d = 80h：Deselect 5×8 Matrix font d = 81h：Select 5×8 Matrix font Default: d = 81h (Select 5×8 Matrix font) Function: Select / Deselect 5×8 Matrix font Selecting 5×8 Matrix font gives decender to only these five characters: ‘g’ (67h), ‘j’ (6Ah), ‘p’ (70h), ‘q’ (71h) and ‘y’ (79h). Both 5×8 font and 5×7 font give the same style fonts to the other characters. d=81h: The five characters are displayed in 5×8 font after this command. Characters already displayed are not affected. For details of each pattern, refer to font spec. DS-1519-0002-xx. 5 Char 10 Char 15 Char 20 Char 5×8 Font 5×7 Font - 33 - CU20027-Y100 13.3.47 Select/Deselect Alternative Magnified Font Code: 1Fh 28h 67h 06h s s: Select/Deselect Alternative Magnified Font Definable area: 0 (00h) ≦ s ≦ 1 (01h) s = 00h：Normal font s = 01h：Alternative Magnified font Default: s = 00h Function: Select Alternative Magnified font to improve legibility for Font magnified display. This command is valid for characters written after this command execution; it does not affect characters that are already displayed. Alternative Magnified font is only used when magnification is x=2X, y=2X. At all other times, normal font is used regardless of this setting. Applicable characters are only for International font set "America" (n=00h). For all other fonts, normal font is used regardless of this setting. When FROM user font table (“Specify character code type” command) is selected, user font characters have priority, regardless of this setting. Note: Refer to the DS-1519-0002-xx CU-Y Series VFD character fonts specification. In case of character "1" □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□■■■ ■□□□□ □□□□□ □■■■■ □□■■■ ■□□□□ □□□□□ □■■■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□□□■ ■□□□□ □□□□□ □□□■■ □□■■■ ■■■□□ □□□□□ □□□■■ □□■■■ ■■■□□ □□□□□ □□□■■ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ □□□□□ Normal font Alternative Magnified font - 34 - CU20027-Y100 13.3.48 Font Magnification Code: 1Fh 28h 67h 40h x y x: Specify the size of magnification X y: Specify the size of magnification Y Definable area: 1 (01h) ≦ x ≦ 2 (02h) 1 (01h) ≦ y ≦ 2 (02h) Default: x = 01h y = 01h Function: Magnify the character by x times on the right, y times downward. This command is valid for characters written after this command execution; it does not affect characters that are already displayed. x=2, y=1 is not supported (command will be ignored). 1x1 magnification 1x2 magnification 2x2 magnification (default) - 35 - CU20027-Y100 13.3.49 Individual Character Brightness Level Setting Code: 1Fh 28h 67h 50h d1 d2 d3 d1: Gray-shade level d2: Dummy data d3: Dummy data Definable area: 1 (01h) ≦ d1 ≦ 8 (08h), 49 (31h) ≦ d1 ≦ 54 (38h) D1 Level 01h or 31h Level 1 (0%) 02h or 32h Level 2 (14%) 03h or 33h Level 3 (29%) 04h or 34h Level 4 (43%) 05h or 35h Level 5 (57%) 06h or 36h Level 6 (71%) 07h or 37h Level 7 (86%) 08h or 38h Level 8 (100%) 0 (00h) ≦ d2 ≦ 255 (FFh) 0 (00h) ≦ d3 ≦ 255 (FFh) Default: d1 = 8 (08h) Function: Specify gray-shade level of characters. This command is valid for characters written after this command execution; it does not affect characters that are already displayed. Note: This individual character brightness is a relative value of allover display brightness. If the display brightness level and the individual matrix brightness level are 200% (2,000 cd/m2) and Level 5 (57%) respectively, the individual character brightness is 2,000 2 2 cd/m × 57% = 1,140 cd/m . In order to set allover the display brightness, please refer to the command “13.3.35 Brightness level setting”. Level 1 Level 2 Level 3 Level 4 Level 5 Level 6 Level 7 Level 8 (0%) (14%) (29%) (43%) (57%) (71%) (86%) (100%) - 36 - CN1 CU20027-Y100 14 Pin Configuration 14.1 Parallel interface connecter (Fourteen through-holes / CN1) Pin Signal Pin Signal Function Direction Function Direction No. name No. name 1 GND Ground - 8 D1 Data input Input 2 VCC Power supply - 9 D2 Data input Input 3 PBUSY Display busy Output 10 D3 Data input Input 4 /RESET Reset Input 11 D4 Data input Input 5 /WR Data write Input 12 D5 Data input Input 6 NC Non connection - 13 D6 Data input Input 7 D0 Data input (LSB) Input 14 D7 Data input (MSB) Input 14.2 Serial interface connector (Six through-holes / CN3) Pin No. Signal name Function Direction 1 VCC Power supply - 2 SIN Data receive Input 3 GND Ground - 4 SBUSY Display busy Output 5 NC Non connection - 6 /RESET Reset Input 15 Firmware Version Notation The firmware version is shown in the following position. VFD CN3 CU20027-Y100 xxxxx Fnnn Part Number Date Code Firmware Version - 37 - CU20027-Y100 16 Physical Dimensions - 38 - CU20027-Y100 Notice for the Cautious Handling VFD Modules Handling and Usage Precautions: Please carefully follow the appropriate product application notes for proper usage, safety handling, and operation standards for maximum performance. [VFD tubes are made of glass] • Because the edges of the VFD glass-envelop are not smooth, it is necessary to handle carefully to avoid injuries to your hands • Please avoid breaking the VFD glass-envelop to prevent injury from sharp glass particles. • The tip of the exhaust pipe is fragile so avoid shock from impact. • It is recommended to allow sufficient open space surrounding the exhaust pipe to avoid possible damage. • Please design the PCB for the VFD-module within 0.3 mm warping tolerance to avoid any forces that may damage the display due to PCB distortion causing a breakdown of the electrical circuit leading to VFD failure. [High voltage] • Avoid touching conductive electrical parts, because the VFD-module uses high voltage exceeding 30～100 volts. • Even when electric power is turned off, it may take more than one minute for the electrical current to discharge. [Cable connection] • Do not unplug the power and/or data cables of VFD-modules during operating condition because unrecoverable damage may result. • Sending input signals to the VFD-module during a power off condition sometimes causes I/O port damage. • It is recommended to use a 30 cm or shorter signal cable to prevent functional failures. [Electrostatic charge] • VFD-modules needs electrostatic free packaging and protection from electrostatic charges during handling and usage. [Structure] • During operation, VFD and VFD-modules generate heat. Please consider sufficient heat radiation dissipation using heat sink solutions. • We prefer to use UL grade materials or components in conjunction with VFD-modules. • Wrap and twist motion causes stress and may break VFDs & VFD modules. Please adhere to allowances within 0.3mm at the point of attachment. [Power] • Apply regulated power to the VFD-module within specified voltages to protect from failures. • Because some VFD-modules may consume in rush current equal to twice the typical current at power-on timing, we recommend using a sufficient power capability and quick starting of the power regulator. • VFD-module needs a specified voltage at the point of connection. Please use an adequate power cable to avoid a decrease in voltage. We also recommend inserting a power fuse for extra protection. [Operating consideration] • Illuminating phosphor will decrease in brightness during extended operation. If a fixed pattern illuminates for an extended period,( several hours), the phosphor efficiency will decrease compared to the non operating phosphor causing a non uniform brightness among pixels. Please consider programming the display patterns to use all phosphor segments evenly. Scrolling may be a consideration for a period of time to refresh the phosphor condition and improve even illumination to the pixels. • We recommend using a signal cable 30cm or less to avoid some possible disturbances to the signal. [Storage and operating environment] • Please use VFD-modules under the recommended specified environmental conditions. Salty, sulfur and dusty environments may damage the VFD-module even during storage. [Discard] • Some VFDs contain a small amount of cadmium in the phosphor and lead in the solder. When discarding VFDs or VFD-modules, please adhere to governmental related laws or regulations. [Others] • Although the VFD-module is designed to be protected from electrical noise, please plan your circuitry to exclude as much noise as possible. • Do not reconstruct or repair the VFD-module without our authorization. We cannot assure the quality or reliability of unauthorized reconstructed VFD-modules. Notice: ･We do not authorize the use of any patents that may be inherent in these specifications. ･Neither whole nor partial copying of these specifications are permitted without our approval. If necessary , please ask for assistance from our sales consultant. ･This product is not designed for military, aerospace, medical or other life-critical applications. If you choose to use this product for these applications, please ask us for prior consultation or we cannot take responsibility for problems that may occur. - 39 - CU20027-Y100 Revision Note SPEC number Date Revision DS-1571-0001-00 Jan.29, 2009 Initial Issue - 40 -