FXAS21002CQR1 Просмотр технического описания (PDF) - Freescale Semiconductor
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FXAS21002CQR1 Datasheet PDF : 58 Pages
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Table of Contents
1 General Description.............................................................. 4
1.1 Block Diagram............................................................. 4
1.2 Pinout...........................................................................4
1.3 System Connections....................................................5
1.3.1 Typical Application Circuit—I2C Mode.............5
1.3.2 Typical Application Circuit—SPI Mode............ 6
1.4 Sensitive Axes Orientations and Polarities.................. 7
2 Mechanical and Electrical Specifications.............................. 8
2.1 Absolute Maximum Ratings......................................... 8
2.2 Operating Conditions................................................... 9
2.3 Mechanical Characteristics..........................................9
2.4 Electrical Characteristics............................................. 10
2.5 Temperature Sensor Characteristics........................... 11
3 Digital Interfaces................................................................... 12
3.1 I²C Interface................................................................. 12
3.1.1 I²C Operation................................................... 14
3.1.2 I²C Read Operations........................................ 15
3.1.3 I²C Write Operations........................................ 15
3.2 SPI Interface................................................................ 17
3.2.1 General SPI Operation.................................... 17
3.2.2 SPI Write Operations with 3- and 4-Wire
Modes.............................................................. 18
3.2.3 SPI Read Operations with 4-Wire Mode.......... 20
3.2.4 SPI Read Operations with 3-Wire Mode.......... 21
3.2.5 SPI Timing Specifications (4-wire mode)......... 21
3.2.6 SPI Timing Specifications (3-wire mode)......... 23
4 Modes of Operation...............................................................24
5 Functionality.......................................................................... 26
5.1 FIFO Data Buffer......................................................... 27
5.2 Rate Threshold Detection Function............................. 28
6 Register Descriptions............................................................ 30
6.1 0x00: STATUS.............................................................30
6.2 0x01–0x06: OUT_X_MSB, OUT_X_LSB,
OUT_Y_MSB, OUT_Y_LSB, OUT_Z_MSB,
OUT_Z_LSB................................................................ 31
6.3 0x07: DR_STATUS......................................................33
6.4 0x08: F_STATUS.........................................................35
6.5 0x09: F_SETUP...........................................................35
6.6 0x0A: F_EVENT.......................................................... 36
6.7 0x0B: INT_SOURCE_FLAG........................................ 37
6.8 0x0C: WHO_AM_I....................................................... 38
6.9 0x0D: CTRL_REG0..................................................... 38
6.10 0x0E: RT_CFG............................................................ 40
6.11 0x0F: RT_SRC............................................................ 41
6.12 0x10: RT_THS............................................................. 43
6.13 0x11: RT_COUNT....................................................... 44
6.14 0x12: TEMP................................................................. 44
6.15 0x13: CTRL_REG1......................................................45
6.16 0x14: CTRL_REG2......................................................47
6.17 0x15:CTRL_REG3.......................................................48
7 Printed Circuit Board Layout and Device Mounting.............. 50
7.1 Printed Circuit Board Layout........................................50
7.2 Overview of Soldering Considerations.........................51
7.3 Halogen Content..........................................................52
8 Package Information............................................................. 52
8.1 Product Identification Markings....................................52
8.2 Tape and Reel Information.......................................... 52
8.3 Package Description....................................................53
9 Revision History.................................................................... 55
3-Axis Digital Angular Rate Gyroscope, Rev. 2.1, 5/2015
3
Freescale Semiconductor, Inc.
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