LFSTBEB7660 Freescale Semiconductor, LFSTBEB7660 Datasheet - Page 2

• Manufacturer Part Number: LFSTBEB7660
• Description: BOARD DEV ACCELEROMETR MMA7660
• Manufacturer: Freescale Semiconductor

Specifications of LFSTBEB7660

• Sensor Type: Accelerometer, 3 Axis
• Sensing Range: ±1.5g
• Interface: USB
• Sensitivity: 21.33 count/g
• Voltage - Supply: 5V, USB
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MMA7660
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Contents
DEFINITIONS ............................................................................................................................................................................... 5
ELECTRO STATIC DISCHARGE (ESD) ...................................................................................................................................... 7
PRINCIPLE OF OPERATION ...................................................................................................................................................... 9
MODES OF OPERATION .......................................................................................................................................................... 10
CONFIGURABLE SAMPLES PER SECONDS AND INTERRUPT SETTINGS ......................................................................... 11
POWER SAVING FEATURES ................................................................................................................................................... 11
TESTING THE LOGIC CHAIN ................................................................................................................................................... 11
FEATURES ................................................................................................................................................................................ 11
REGISTER DEFINITIONS ......................................................................................................................................................... 14
SERIAL INTERFACE ................................................................................................................................................................. 22
APPENDIX A - PACKAGE REQUIREMENTS FOR MMA7660FC ............................................................................................. 25
APPENDIX B - SENSING DIRECTION ...................................................................................................................................... 27
APPENDIX C - MMA7660FC ACQUISITION CODE TABLE ..................................................................................................... 28
APPENDIX D - I
Sensors
Freescale Semiconductor
Tap Detection ...................................................................................................................................................................... 13
Shake Detection .................................................................................................................................................................. 13
Auto-Wake/Sleep ................................................................................................................................................................ 13
Serial-Addressing ................................................................................................................................................................ 22
Start and Stop Conditions ................................................................................................................................................... 22
Bit Transfer .......................................................................................................................................................................... 22
Acknowledge ....................................................................................................................................................................... 23
The Slave Address .............................................................................................................................................................. 23
Message Format for Writing MMA7660FC .......................................................................................................................... 23
Message Format for Reading MMA7660FC ........................................................................................................................ 24
Minimum Recommended Footprint for Surface Mounted Applications ............................................................................... 25
Soldering And Mounting Guidelines for the DFN Accelerometer Sensor to a PC Board .................................................... 25
Overview of Soldering Considerations ................................................................................................................................ 25
Halogen Content ................................................................................................................................................................. 25
PCB Mounting Recommendations ...................................................................................................................................... 25
2
C AC CHARACTERISTICS ............................................................................................................................ 30
MMA7660FC
2