MMA8452QR1 Freescale Semiconductor, MMA8452QR1 Datasheet - Page 3

• Manufacturer Part Number: MMA8452QR1
• Description: Board Mount Accelerometers LOW G 3-AXIS 12BT EX VLT
• Manufacturer: Freescale Semiconductor

Specifications of MMA8452QR1

• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 4 g, 8 g
• Digital Output - Number Of Bits: 8 bit, 12 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.95 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Digital Output - Bus Interface: I2C
• Shutdown: Yes
• Sensitivity: 256 count/g, 512 count/g, 1024 count/g
• Package / Case: QFN-16
• Output Type: Digital
• Rohs Compliant: Yes
• Peak Reflow Compatible (260 C): Yes
• Acceleration Range: ± 2g, ± 4g, ± 8g
• No. Of Axes: 3
• Ic Interface Type: I2C
• Sensor Case Style: QFN
• No. Of Pins: 16
• Supply Voltage Range: 1.95V To 3.6V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

6
Sensors
Freescale Semiconductor
Register Descriptions .......................................................................................................................................................21
6.1
6.2
6.3
Data Registers: 0x01 OUT_X_MSB, 0x02 OUT_X_LSB, 0x03 OUT_Y_MSB, 0X04 OUT_Y_LSB .............................24
0x0B: SYSMOD System Mode Register ......................................................................................................................24
0x0C: INT_SOURCE System Interrupt Status Register ...............................................................................................25
0x0D: WHO_AM_I Device ID Register .........................................................................................................................26
0x0E: XYZ_DATA_CFG Register ................................................................................................................................26
0x0F: HP_FILTER_CUTOFF High Pass Filter Register ..............................................................................................26
0x10: PL_STATUS Portrait/Landscape Status Register ..............................................................................................27
0x11 Portrait/Landscape Configuration Register .........................................................................................................28
0x12 Portrait/Landscape Debounce Counter ...............................................................................................................28
0x13: PL_BF_ZCOMP Back/Front and Z Compensation Register ..............................................................................28
0x14: P_L_THS_REG Portrait/Landscape Threshold and Hysteresis Register ...........................................................29
Mode 1: Freefall Detection with ELE = 0, OAE = 0 ......................................................................................................29
Mode 2: Freefall Detection with ELE = 1, OAE = 0 ......................................................................................................29
Mode 3: Motion Detection with ELE = 0, OAE = 1 .......................................................................................................29
Mode 4: Motion Detection with ELE = 1, OAE = 1 .......................................................................................................29
0x15 FF_MT_CFG Freefall/Motion Configuration Register .........................................................................................30
0x16 FF_MT_SRC Freefall/Motion Source Register ....................................................................................................30
0x17: FF_MT_THS Freefall and Motion Threshold Register .......................................................................................31
Table 11. Register Address Map ...............................................................................................................................21
Data Registers ...........................................................................................................................................................22
Table 12. STATUS Description .................................................................................................................................23
Table 13. SYSMOD Description ................................................................................................................................24
Table 14. INT_SOURCE Description ........................................................................................................................25
Table 15. XYZ Data Configuration Descriptions ........................................................................................................26
Table 16. Full Scale Range .......................................................................................................................................26
Table 17. High Pass Filter Cut-off Register Descriptions ..........................................................................................26
Table 18. High Pass Filter Cut-off Options ................................................................................................................27
Portrait/ Landscape Embedded Function Registers ..................................................................................................27
Table 19. PL_STATUS Register Description ............................................................................................................27
Table 20. PL_CFG Description .................................................................................................................................28
Table 21. PL_COUNT Description ............................................................................................................................28
Table 22. PL_COUNT Relationship with the ODR ....................................................................................................28
Table 23. PL_BF_ZCOMP Description .....................................................................................................................28
Table 24. P_L_THS_REG Description ......................................................................................................................29
Table 25. Trip Angles with Hysteresis for 45° Angle .................................................................................................29
Motion and Freefall Embedded Function Registers ..................................................................................................29
Table 26. FF_MT_CFG Description .........................................................................................................................30
Figure 13. FF_MT_CFG High and Low g Level ........................................................................................................30
Table 27. Freefall/Motion Source Description ..........................................................................................................31
Table 28. FF_MT_THS Description ...........................................................................................................................31
0X00 STATUS: Data Status Register (Read Only) .............................................................................................22
0x01 OUT_X_MSB: X_MSB Register (Read Only) .............................................................................................24
0x02 OUT_X_LSB: X_LSB Register (Read Only) ...............................................................................................24
0x03 OUT_Y_MSB: Y_MSB Register (Read Only) .............................................................................................24
0x04 OUT_Y_LSB: Y_LSB Register (Read Only) ...............................................................................................24
0x05 OUT_Z_MSB: Z_MSB Register (Read Only) .............................................................................................24
0x06 OUT_Z_LSB: Z_LSB Register (Read Only) ...............................................................................................24
0x0B SYSMOD: System Mode Register (Read Only) .........................................................................................24
0x0D: WHO_AM_I Device ID Register (Read Only) ............................................................................................26
0x0E: XYZ_DATA_CFG (Read/Write) .................................................................................................................26
0x0F HP_FILTER_CUTOFF: High Pass Filter Register (Read/Write) ................................................................26
0x10 PL_STATUS Register (Read Only) ............................................................................................................27
0x11 PL_CFG Register (Read/Write ...................................................................................................................28
0x12 PL_COUNT Register (Read/Write) .............................................................................................................28
0x13: PL_BF_ZCOMP Register (Read/Write) .....................................................................................................28
0x14: P_L_THS_REG Register (Read/Write) ......................................................................................................29
0x15 FF_MT_CFG Register (Read/Write) ...........................................................................................................30
0x16: FF_MT_SRC Freefall and Motion Source Register (Read Only) ...............................................................30
0x17 FF_MT_THS Register (Read/Write) ...........................................................................................................31
MMA8452Q
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