Accelerometer with Analog and Digital I/O for StackableUSB™ USB1600 Features 9 Tri-axis sensing, six degrees of freedom 9 Selectable high-resolution 1.5g – 200g sensing ranges 9 12-bit, 250ksps simultaneous sampling 9 UART, SPI, I2C, ADC, temperature sensor, analog comparators, PCA, timers, twenty (20) configurable I/O Pins 9 64KB Flash, 2k (256x8) EEPROM, 4352 bytes RAM 9 Small 1.85” x 1.78” board 9 -40° to +85°C operation The USB1600 accelerometer module provides allowing the USB1600 to sense six (6) degrees of the ideal mix of sensing ranges, resolutions, freedom. Powered by a Silicon Labs C8051F340 and sampling rates for rugged, compact microcontroller with Pipelined 48-MIPS architecture, embedded systems. The module stacks the USB1600 also provides a great set of additional directly onto any StackableUSB Host features including digital I/O, timers, PWMs, SPI, computer or microcontroller, supplying OEMs I2C, RS232, and more. with a cost effective solution for measuring The 1.85” x 1.78” module is USB 2.0 compliant acceleration and vibration. The USB1600 providing users the advantages of plug-and-play comes with sample software and full interfacing. The module stacks onto the top or documentation. bottom of any StackableUSB host single board The USB1600 offers standard sensing ranges computer or microcontroller forming a small, rugged, from 1.5g – 6g and is configurable for ranges embeddable system, ideal for harsh environments. up to 200g. In addition, a dedicated Analog The USB1600 can be connected to desktop PCs Devices ADC provides simultaneous sampling and laptops via a Mini-B USB connector for on all three (3) accelerometer axis (X, Y, Z), development. Software/Driver Support Compatible Hardware Mounting/Packaging Windows XP StackableUSB Host single board ¼-Size 104™ Form Factor Windows CE computers and Standoffs, STDOFFUSB Linux microcontrollers Host MCU firmware PC Host desktops and laptops On-board MCU firmware SPI, I2C, UART Sample software Analog Devices SiLabs DEBUGADPTR-USB Programming & Debug Interface I/O Connector Mini-B USB RS232 Level Converter Micro- controller ADC Accelerometer Technical Details: The USB1600 features software selectable The USB1600 communicates with a host ranges from 1.5g – 6g. Accelerometers with CPU through the StackableUSB connector, lower g ranges have higher resolutions and the Mini-B USB connector, or can serve as a can better detect smaller movements than stand-alone sensor board. A 10-pin those with high g ranges. For systems connector provides access to the requiring a higher magnitude, the USB1600 programming and debugging interface, and a can be equipped with a more powerful range high-density 50-pin connector provides (maximums of 50g or 200g). The versatility access to the microcontroller’s multiplexed of the USB1600 is important because an ill- differential ADC with a built-in temperature matched accelerometer range will result in sensor, comparators, digital I/O, I2C, SPI, false readings. If an acceleration outside the UART ports (one RS232 and one TTL level), sensing range occurs, then the output will be timers, and counters. Twenty (20) pins on clipped and read as the maximum. As a rule the microcontroller are provided as user of thumb, a 20% gap should be given in configurable pins and can be configured as respect to the highest g-force expected to be analog, digital, or any of the other features encountered in an application. (Figure 1.1 mentioned above. provides a scale to help decide which USB1600 configuration best suites the OEM The USB1600 also includes an EEPROM application. The graph shows some which resides on the I2C bus. This provides acceleration values that are experienced in programmers with 2k (256x8) of storage common day-to-day events along with the space in addition to the microcontroller’s 64 sensing ranges of the USB1600 options.) KB Flash and 4352 bytes of RAM. A host connected to the USB1600 can The pre-installed software allows the determine roll, pitch, and yaw using simple USB1600 to transfer data between the USB algorithms eliminating the need for an port and all of the on-board peripherals with expensive Gyro. no need to write additional code to the device side of the system. To ease At the core of the USB1600 is the Silicon labs installation on the host side, USB drivers and C8051F340 8-bit microcontroller which houses a example source codes are supplied, high-speed, 48-MIPS pipelined architecture CIP- eliminating the need for prior USB TM 51 CPU Core. This provides excellent experience. Host side operating systems throughput allowing execution of 70% of supported are Linux, WinCE, and WinXP. instructions in 1 or 2 system clocks. StackableUSB A command and control protocol Power for the USB1600 is drawn through implemented over the USB interface allows either the StackableUSB or Mini-B USB port direct communication with the on-board when connected to a PC. An optional power peripherals via inport and outport driver calls adapter plug may be included for stand- executed on the host computer. A custom alone functionality. interrupt service routine can be called directly by the host side USB driver. The USB1600 is USB 2.0 compliant and supports both full-speed (12Mbps) and low-speed (1.5Mbps) transfer rates. OPT2B, OPT3B, OPT4B (Fixed Range) 200g OPT2A, OPT3A, OPT4A (Fixed Range) 50g OPT1 (Selectable Range) 2.5g 3.3g 6.7g 10g USB1600 Standard (Selectable Range) 1.5g 2g 4g 6g 0g 10-50g 0-2g 3g 7g 100-2,000g 1g 2g 46.2g 15,000g 5g 10g 5-7g 0g 20,000g Laptop falling on a Space John Paul Stapp Bobsled concrete floor from a Shuttle “Fastest Man On Rider Earth’s height of 3 ft. Earth” (12/10/1954) Gravitational Pull Indy Car Automobile Fighter Jet Pilot Driver Cannon Munition Accident Road Bumps Human Unconsciousness Walking, Biking, Driving a Car Figure 1.1 USB1600 Sensing Range Chart Digital Peripherals: Specifications: ‰ Hardware enhanced SPI ‰ SMBus/I2C (Built in 5V pull-up resistors) Mechanical: ‰ One (1) RS-232 level UART port ‰ 1.85” x 1.78” StackableUSB ‰ One (1) TTL level UART port ‰ ¼-Size 104™ Form factor ‰ Four (4) 16-bit general purpose counters/timers Power Requirements: ‰ 16-bit programmable counter array with ‰ +5v ±5% five (5) capture/compare modules ‰ USB 2.0 Compliant (full-speed or low-speed) Power Consumption with Options Installed Option Standard Sleep Mode Memory: USB1600 38.96 mA 8.47 mA ‰ 4352 bytes RAM 1600OPT1 +0 mA +0 mA ‰ 64KB Flash 1600OPT2A +4.35 mA +4.997mA ‰ 2K (256x8) EEPROM (on I2C bus) 1600OPT2B +4.35 mA +4.997mA 1600OPT3A +4.35 mA +4.997mA I/O Interface: 1600OPT3B +4.35 mA +4.997mA 1600OPT4A +4.35 mA +4.997mA 50 Pin I/O Connector B 1600OPT4B +4.35 mA +4.997mA Pin Signal Signal Pin 1 RS232_RX0 GND 2 3 RS232_TX0 GND 4 Environmental: 5 P00/SCK GND 6 ‰ -40° to +85°C operating temp 7 P01/MISO P02/MOSI 8 ‰ -40° to +85°C storage temp 9 GND GND 10 ‰ 5%-95% relative humidity, non-condensing 11 P10/SDA P11/SCL 12 13 P14 GND 14 Accelerometer: 15 P15 GND 16 ‰ Dedicated 12-bit, 250ksps, 17 P16 GND 18 simultaneous sampling ADC 19 P17 GND 20 (Analog Devices AD7658-1) 21 P20 GND 22 ‰ Refer to Accelerometer chart 23 P21 GND 24 25 P22 GND 26 Processor: 27 P23 GND 28 ‰ 48MHz Silicon Labs C8051F340 29 P24 GND 30 ‰ On-chip debug & development interface 31 P25 GND 32 ‰ Sixteen (16) interrupt sources 33 P26 GND 34 ‰ Nine (9) reset sources 35 P27 GND 36 ‰ Watchdog timer 37 P30 GND 38 ‰ Twenty (20) configurable I/O Pins (5V 39 P31 GND 40 tolerant) 41 P32 GND 42 Analog Peripherals: 43 P33 GND 44 ‰ 10-bit ADC (200ksps) 45 P34 GND 46 47 P35 GND 48 • Single or differential inputs 49 P36 P37 50 • Built-in temperature sensor • External VREF • External conversion start trigger Internal Electrical Interface: ‰ StackableUSB ‰ Two (2) Comparators ‰ USB 1.1 & 2.0 compatible, full-speed Accelerometers: USB1600-XX 1600OPT1 1600OPT2 1600OPT3 1600OPT4 Freescale A= MMA71213EG A= MMA2202EG A= MMA2202EG MMA7260QT MMA7261QT Model B= MMA1212EG B= MMA2301EG B= MMA2301EG Sensing X, Y, Z X, Y, Z Z Y X Planes ± 1.5g, ± 2g, ±2.5g, ±3.3g, ±6.7g, A= ± 50g A= ± 50g A= ± 50g Range ± 4g, ± 6g ±10g (Selectable) B= ± 200g B= ± 200g B= ± 200g (Selectable) Max Acceleration ± 1500g (powered) ± 1500g (powered) ± 1500g (powered) ± 5000 g ± 2000 g (all axis) ± 2000g (unpowered) ± 2000g (unpowered) ± 2000g (unpowered) 800 mV/g (1.5g) 480 mV/g (2.5g) 600 mV/g (2g) 360 mV/g (3.3g) A= 40 mV/g A= 40 mV/g A= 40 mV/g Sensitivity 300 mV/g (4g) 180 mV/g (6.7g) B= 10 mV/g B= 10 mV/g B= 10 mV/g 200 mV/g (6g) 120 mV/g (10g) ± 0.02 %/°C (x-axis) ± 0.02 %/°C (x) Axis A= 8 mV/g/V A= 8 mV/g/V A= 8 mV/g/V ± 0.01 %/°C (y-axis) ± 0.01 %/°C (y) Sensitivity B= 2 mV/g/V B= 2 mV/g/V B= 2 mV/g/V ± 0.00 %/°C (z-axis) ± 0.00 %/°C (z) Bandwidth 350 Hz (xy axis) 350 Hz (xy axis) 400 Hz 400 Hz 400 Hz Response 150 Hz (z axis) 150 Hz (z axis) RMS noise 4.7 mVrms 4.7 mVrms 2.8 mVrms 2.8 mVrms 2.8 mVrms (.1Hz - 1kHz) PSD noise (µg/√Hz) 350 350 110 110 110 Operating 3.3V 3.3V 5V 5V 5V Voltage Operating 500µA 500µA 5mA 5mA 5mA Current Sleep (no sleep (no sleep (no sleep 3µA 3µA Current function) function) function) Debug Interface: External Connectors: ‰ StackableUSB ‰ Mini-B USB 10 Pin I/O Connector ‰ 10-pin development Interface connector Pin Signal Signal Pin ‰ 50-pin I/O connector 1 NC GND 2 3 GND C2D 4 Development Kit: 5 RST# NC 6 ‰ Base module 7 RST#/C2CK NC 8 ‰ Complete cable set 9 GND NC 10 ‰ Documentation, schematics, sample software Ordering Information: Development Board Kits* . OEM Modules: USB1600-ST Accelerometer with DK1600-ST Accelerometer with Analog & Digital I/O with Analog & Digital I/O with StackableUSB stack- StackableUSB stack- through connector; X, Y, Z through connector; X, Y, sensing planes; ±1.5g, Z sensing planes; ±1.5g, ±2g, ±4g, ±6g software ±2g, ±4g, ±6g software selectable ranges, selectable ranges Windows-ready USB1600-PC Accelerometer with development kit Analog & Digital I/O with DK1600-PC Accelerometer with Mini-B USB connector for Analog & Digital I/O with PC connection; X, Y, Z Mini-B USB connector for sensing planes ±1.5g, PC connection; X, Y, Z ±2g, ±4g, ±6g software sensing planes; ±1.5g, selectable ranges ±2g, ±4g, ±6g software selectable ranges, CS1600 Complete cable set Windows-ready 1600 OPT 1 X, Y, Z sensing planes; development kit ±2.5g, ±3.3g, ±6.7g, ±10g software selectable *See Development Kit Specifications ranges 1600 OPT 2-A Z axis range ±50g 1600 OPT 2-B Z axis range ±200g 1600 OPT 3-A Y axis range ±50g 1600 OPT 3-B Y axis range ±200g 1600 OPT 4-A X axis range ±50g 1600 OPT 4-B X axis range ±200g Related Products: STDOFFUSB StackableUSB standoff kit BA4051 50-pin breakout cable with DB9 and standard 50-pin header CA4136 A to Mini-B USB cable TB50550 50-pin breakout board