Features Fast read access time – 90ns Dual voltage range operation – Low voltage power supply range, 3.0V to 3.6V, or – Standard power supply range, 5V  10% ® Compatible with JEDEC standard Atmel AT27C040 Low-power, 3.3V CMOS operation – 20µA max standby (less than 1µA, typical) for V = 3.6V CC – 36mW max active at 5MHz for V = 3.6V CC 4Mb (512K x 8) JEDEC-standard package Low Voltage, – 32-lead PLCC High-reliability CMOS technology One-time – 2,000V ESD protection Programmable, – 200mA latchup immunity Read-only MemoryRapid programming algorithm – 100µs/byte (typical) CMOS- and TTL-compatible inputs and outputs – JEDEC standard for LVTTL Atmel AT27LV040A Integrated product identification code Industrial temperature range Green (Pb/halide-free) packaging option 1. Description The Atmel AT27LV040A is a high-performance, low-power, low-voltage, 4,194,304-bit, one-time programmable, read-only memory (OTP EPROM) organized as 512K by 8 bits. It requires only one supply in the range of 3.0 to 3.6V in normal read mode operation, making it ideal for fast, portable systems using battery power. The Atmel innovative design techniques provide fast speeds that rival 5V parts while keep- ing the low power consumption of a 3V supply. At V = 3.0V, any byte can be accessed in CC less than 90ns. With a typical power dissipation of only 18mW at 5MHz and V = 3.3V, the CC AT27LV040A consumes less than one-half the power of a standard, 5V EPROM. Standby mode supply current is typically less than 1µA at 3.3V. The AT27LV040A is available inan industry-standard, JEDEC-approved, one-time program- mable (OTP) PLCC package. All devices feature two-line control (CE, OE) to give designers the flexibility to prevent bus contention. The AT27LV040A operating with V at 3.0V produces TTL-level outputs that are compati- CC ble with standard TTL logic devices operating at V = 5.0V. The device is also capable of CC standard, 5V operation, making it ideally suited for dual supply range systems or card prod- ucts that are pluggable in both 3V and 5V hosts. The AT27LV040A has additional features to ensure high quality and efficient production use. The rapid programming algorithm reduces the time required to program the part and guar- antees reliable programming. Programming time is typically only 100µs/byte. The integrated product identification code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper pro- gramming algorithms and voltages. The AT27LV040A programs in exactly the same way as a standard, 5V Atmel AT27C040, and uses the same programming equipment. 0557E–EPROM–4/11 2. Pin configurations 32-lead PLCC Pin name Function Top view A0 - A18 Addresses O0 - O7 Outputs CE Chip enable A7 5 29 A14 A6 6 28 A13 OE Output enable A5 7 27 A8 A4 8 26 A9 A3 9 25 A11 A2 10 24 OE A1 11 23 A10 A0 12 22 CE O0 13 21 O7 3. System considerations Switching between active and standby conditions via the chip enable pin may produce transient voltage excursions. Unless accommodated by the system design, these transients may exceed datasheet limits, resulting in device nonconformance. At a minimum, a 0.1µF, high-frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the V and ground terminals of the device, as close to the device as possible. CC Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a 4.7µF bulk electrolytic capacitor should be utilized, again connected between the V and ground terminals. This capacitor should be positioned as CC close as possible to the point where the power supply is connected to the array. Figure 3-1. Block diagram 2 Atmel AT27LV040A 0557E–EPROM–4/11 O1 14 4 A12 O2 15 3 A15 GND 16 2 A16 O3 17 1 VPP O4 18 32 VCC O5 19 31 A18 O6 20 30 A17 Atmel AT27LV040A 4. Absolute maximum ratings* *NOTICE: Stresses beyond those listed under “Absolute Temperature under bias . . . . . . . . . . . . . . . -40°C to +85°C maximum ratings” may cause permanent damage to the device. This is a stress rating only, and functional Storage temperature . . . . . . . . . . . . . . . . .-65°C to +125°C operation of the device at these or any other conditions beyond those indicated in the operational sections of Voltage on any pin with this specification is not implied. Exposure to absolute (1) respect to ground . . . . . . . . . . . . . . . . . . . -2.0V to +7.0V maximum rating conditions for extended periods may affect device reliability. Voltage on A9 with (1) respect to ground . . . . . . . . . . . . . . . . . -2.0V to +14.0V V supply voltage with PP (1) respect to ground . . . . . . . . . . . . . . . . . . -2.0V to +14.0V Note: 1. Minimum voltage is -0.6V DC, which may undershoot to -2.0V for pulses of less than 20ns. Maximum output pin voltage is V + 0.75V DC, which may be exceeded if certain precautions are observed (consult application notes), and which may CC overshoot to +7.0V for pulses of less than 20ns. 5. DC and AC characteristics Table 5-1. Operating modes Mode/Pin CE OE Ai V V Outputs PP CC (2) (1) V V Ai X V D Read IL IL CC OUT (2) Output disable XV XX V High Z IH CC (2) V XXX V High Z Standby IH CC (3) V V Ai V V D Rapid program IL IH PP CC IN (3) PGM verify XV Ai V V D IL PP CC OUT (3) PGM inhibit V V XV V High Z IH IH PP CC (4) A9 = V H (3)(5) Product identification V V A0 = V or V XV Identification code IL IL IH IL CC A1 - A18 = V IL or V . Notes: 1. X can be V IL IH  3.6V or 4.5V  V  5.5V. 2. Read, output disable, and standby modes require 3.0V  V CC CC = 6.5V. 3. Refer to programming characteristics. Programming modes require V CC = 12.0 ± 0.5V. 4. V H ) except A9, which is set to V , and A0, which is tog- 5. Two identifier bytes may be selected. All Ai inputs are held low (V IL H gled low (V ) to select the manufacturer’s identification byte and high (V ) to select the device code byte. IL IH Table 5-2. DC and AC operating conditions for read operation Atmel AT27LV040A-90 Industrial operating temperature (case) -40°C - 85°C 3.0V to 3.6V V power supply CC 5V  10% 3 0557E–EPROM–4/11 Table 5-3. DC and operating characteristics for read operation Symbol Parameter Condition Min Max Units = 3.0V to 3.6V V CC Input load current V = 0V to V 1µA I LI IN CC Output leakage current V = 0V to V 5µA I LO OUT CC (2) (1) V read/standby current V = V 10 µA I PP1 PP PP CC (CMOS), CE = V 0.3V 20 µA I SB1 CC (1) I V standby current SB CC (TTL), CE = 2.0 to V + 0.5V 100 µA I SB2 CC V active current f = 5MHz, I = 0mA, CE = V 10 mA I CC CC OUT IL Input low voltage -0.6 0.8 V V IL Input high voltage 2.0 V + 0.5 V V IH CC Output low voltage I = 2.0mA 0.4 V V OL OL Output high voltage I = -2.0mA 2.4 V V OH OH = 4.5V to 5.5V V CC Input load current V = 0V to V 1µA I LI IN CC Output leakage current V = 0V to V 5µA I LO OUT CC (2) (1) V read/standby current V = V 10 µA I PP1 PP PP CC (CMOS), CE = V  0.3V 100 µA I SB1 CC (1) I V standby current SB CC (TTL), CE = 2.0 to V + 0.5V 1 mA I SB2 CC V active current f = 5MHz, I = 0mA, CE = V 30 mA I CC CC OUT IL Input low voltage -0.6 0.8 V V IL Input high voltage 2.0 V + 0.5 V V IH CC Output low voltage I = 2.1mA 0.4 V V OL OL Output high voltage I = -400µA 2.4 V V OH OH must be applied simultaneously with or before V , and removed simultaneously with or after V . Notes: 1. V CC PP PP may be connected directly to V , except during programming. The supply current would then be the sum of I and 2. V PP CC CC I . PP Table 5-4. AC characteristics for read operation V = 3.0V to 3.6V and 4.5V to 5.5V CC Atmel AT27LV040A-90 Symbol Parameter Condition Min Max Units (3) Address to output delay CE = OE = V 90 ns t ACC IL (2) CE to output delay OE = V 90 ns t CE IL (2)(3) OE to output delay CE = V 50 ns t OE IL OE or CE high to output float, (4)(5) t 60 ns DF whichever occurred first Output hold from address, CE or OE, t 0ns OH whichever occurred first 4 Atmel AT27LV040A 0557E–EPROM–4/11 Atmel AT27LV040A (1) Figure 5-1. AC waveforms for read operation Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V. See input test waveforms and measurement levels. 2. OE may be delayed up to t - t after the falling edge of CE without impact on t . CE OE CE 3. OE may be delayed up to t - t after the address is valid without impact on t . ACC OE ACC 4. This parameter is only sampled, and is not 100% tested. 5. Output float is defined as the point when data is no longer driven. Figure 5-2. Input test waveforms and measurement level t , t < 20 ns (10% to 90%) R F Figure 5-3. Output test load Note: CL = 100pF including jig capacitance. 5 0557E–EPROM–4/11 Table 5-5. Pin capacitance (1) f = 1MHz, T = 25°C Symbol Typ Max Units Conditions 4 8 pF V = 0V C IN IN 812 pF V = 0V C OUT OUT Note: 1. Typical values for nominal supply voltage. This parameter is only sampled, and is not 100% tested. (1) Figure 5-4. Programming waveforms Note: 1. The input timing reference is 0.8V for V and 2.0V for V . IL IH 2. t and t are characteristics of the device, but must be accommodated by the programmer. OE DFP 3. When programming the Atmel AT27LV040A, a 0.1µF capacitor is required across V and ground to suppress spurious PP voltage transients. 6 Atmel AT27LV040A 0557E–EPROM–4/11 Atmel AT27LV040A Table 5-6. DC programming characteristics T = 25 5°C, V = 6.5  0.25V, V = 13.0 0.25V A CC PP Limits Symbol Parameter Test conditions Min Max Units Input load current V =V ,V 10 µA I LI IN IL IH Input low level -0.6 0.8 V V IL Input high level 2.0 V + 0.5 V V CC IH Output low voltage I = 2.1mA 0.4 V V OL OL Output high voltage I = -400µA 2.4 V V OH OH V supply current (program and verify) 40 mA I CC2 CC V supply current CE = V 20 mA I PP2 PP IL A9 product identification voltage 11.5 12.5 V V ID Table 5-7. AC programming characteristics T = 255°C, V = 6.5 0.25V, V = 13.0 0.25V A CC PP Limits (1) Symbol Parameter Test conditions Min Max Units Address setup time 2µs t AS t OE setup time 2 µs OES Input rise and fall times Data setup time 2 µs t DS (10% to 90%) 20ns Address hold time 0 µs t AH Input pulse levels Data hold time 2 µs t DH .0.45V to 2.4V (2) OE high to output float delay 0 130 ns t DFP V setup time 2 µs t Input timing reference level VPS PP 0.8V to 2.0V V setup time 2 µs t VCS CC (3) CE program pulse width 95 105 µs t PW Output timing reference level (2) Data valid from OE 150 ns t OE 0.8V to 2.0V V pulse rise time during PP t 50 ns PRT programming must be applied simultaneously with or before V and removed simultaneously with or after V . Notes: 1. V CC PP PP 2. This parameter is only sampled, and is not 100% tested. Output float is defined as the point where data is no longer driven. See timing diagram. 3. Program pulse width tolerance is 100µsec5%. (1) Table 5-8. The Atmel AT27LV040A integrated product identification code Pins Codes A0 O7 O6 O5 O4 O3 O2 O1 O0 Hex data Manufacturer 0 0 0 0 1 1 1 1 0 1E Device type 1 0 0 0 0 1 0 1 1 0B Note: 1. The Atmel AT27LV040A has the same product identification code as the Atmel AT27C040. Both are programming compatible. 7 0557E–EPROM–4/11 6. Rapid programming algorithm A 100µs CE pulse width is used to program. The address is set to the first location. V is raised to 6.5V and V is raised to CC PP 13.0V. Each address is first programmed with one 100µs CE pulse without verification. Then a verification/reprogramming loop is executed for each address. In the event a byte fails to pass verification, up to 10 successive 100µs pulses are applied with a verification after each pulse. If the byte fails to verify after 10 pulses have been applied, the part is considered failed. After the byte verifies properly, the next address is selected until all have been checked. V is then PP lowered to 5.0V and V to 5.0V. All bytes are read again and compared with the original data to determine if the device CC passes or fails. Figure 6-1. Rapid programming algorithm 8 Atmel AT27LV040A 0557E–EPROM–4/11 Atmel AT27LV040A 7. Ordering information Green package option (Pb/halide-free) (mA) I CC = 3.6V V t CC ACC (ns) Active Standby Atmel ordering code Package Lead finish Operation range Industrial 90 8 0.02 AT27LV040A-90JU 32J Matte tin (-40°C to 85°C) Package type 32-lead, plastic, J-leaded chip carrier (PLCC) 32J 9 0557E–EPROM–4/11 8. Packaging information 32J – PLCC 1.14(0.045) X 45° PIN NO. 1 1.14(0.045) X 45° IDENTIFIER 0.318(0.0125) 0.191(0.0075) E2 E1 E B1 B e A2 D1 A1 D A 0.51(0.020)MAX 45° MAX (3X) COMMON DIMENSIONS (Unit of measure = mm) SYMBOL MIN NOM MAX NOTE A 3.175 – 3.556 D2 A1 1.524 – 2.413 A2 0.381 – – D 12.319 – 12.573 D1 11.354 – 11.506 Note 2 D2 9.906 – 10.922 Notes: 1. This package conforms to JEDEC reference MS-016, variation AE. E 14.859 – 15.113 2. Dimensions D1 and E1 do not include mold protrusion. E1 13.894 – 14.046 Note 2 Allowable protrusion is .010"(0.254mm) per side. Dimension D1 and E1 include mold mismatch and are measured at the extreme E2 12.471 – 13.487 material condition at the upper or lower parting line. B 0.660 – 0.813 3. Lead coplanarity is 0.004" (0.10mm) maximum. B1 0.330 – 0.533 e 1.270 TYP 10/04/01 DRAWING NO. TITLE REV. Package drawing contact: 32J, 32-lead, plastic J-leaded chip carrier (PLCC) packagedrawings@atmel.com 32J B 10 Atmel AT27LV040A 0557E–EPROM–4/11 Atmel AT27LV040A 9. Revision history Doc. rev. Date Comments 0557E 04/2011 Remove TSOP and VSOP packages Add lead finish to ordering information 0557D 12/2007 11 0557E–EPROM–4/11 Atmel Corporation Atmel Asia Limited Atmel Munich GmbH Atmel Japan 2325 Orchard Parkway Unit 01-5 & 16, 19F Business Campus 9F, Tonetsu Shinkawa Bldg. San Jose, CA 95131 BEA Tower, Millennium City 5 Parkring 4 1-24-8 Shinkawa USA 418 Kwun Tong Road D-85748 Garching b. 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