MMA8453QT Freescale Semiconductor, MMA8453QT Datasheet - Page 26

• Manufacturer Part Number: MMA8453QT
• Description: Board Mount Accelerometers LOW G 3-AXIS DGTL ACCEL
• Manufacturer: Freescale Semiconductor

Specifications of MMA8453QT

• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 4 g, 8 g
• Digital Output - Number Of Bits: 8 bit, 10 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
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

0x0D: WHO_AM_I Device ID Register
factory for custom alternate values.
0x0E: XYZ_DATA_CFG Register
Table 15. XYZ Data Configuration Descriptions
0x0F: HP_FILTER_CUTOFF High Pass Filter Register
filter cut-off options change based on the data rate selected as shown in
filter, refer to Freescale application note AN4071.
Table 17. High Pass Filter Cut-off Register Descriptions
0x0D: WHO_AM_I Device ID Register (Read Only)
0x0E: XYZ_DATA_CFG (Read/Write)
0x0F HP_FILTER_CUTOFF: High Pass Filter Register (Read/Write)
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MMA8453Q
The device identification register identifies the part. The default value is 0x3A. This value is factory programmed. Consult the
The XYZ_DATA_CFG register sets the dynamic range.
The default full scale value range is 2g and the high pass filter is disabled.
This register sets the high-pass filter cut-off frequency for removal of the offset and slower changing acceleration data. The
Bit 7
Bit 7
FS[1:0]
Bit 7
0
0
0
Pulse_HPF_BYP
Pulse_LPF_EN
SEL[1:0]
Output buffer data format full scale. Default value: 00 (2g).
Bit 6
Bit 6
Bit 6
0
0
0
Bypass High Pass Filter for Pulse Processing Function.
0: HPF enabled for Pulse Processing, 1: HPF Bypassed for Pulse Processing
Default value: 0.
Enable Low Pass Filter for Pulse Processing Function.
0: LPF disabled for Pulse Processing, 1: LPF Enabled for Pulse Processing
Default value: 0.
HPF Cut-off frequency selection.
Default value: 00 (see
Pulse_HPF_BYP Pulse_LPF_EN
Bit 5
Bit 5
1
0
Bit 5
Table 16. Full Scale Range
FS1
0
0
1
1
Bit 4
Bit 4
1
0
Table 18
Bit 4
FS0
0
1
0
1
).
Bit 3
Bit 3
1
0
Full Scale Range
Bit 3
0
Reserved
Table
2
4
8
18. For details of implementation on the high pass
Bit 2
Bit 2
0
0
Bit 2
0
Bit 1
Bit 1
FS1
1
SEL1
Bit 1
Freescale Semiconductor
Bit 0
Bit 0
FS0
SEL0
Bit 0
0
Sensors