MMA8450QT Freescale Semiconductor, MMA8450QT Datasheet - Page 45

• Manufacturer Part Number: MMA8450QT
• Description: Board Mount Accelerometers 12bit 3-Axis FIFO HPF PL
• Manufacturer: Freescale Semiconductor

Specifications of MMA8450QT

• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 4 g, 8 g
• Digital Output - Number Of Bits: 12 bit
• Supply Voltage (max): 1.89 V
• Supply Voltage (min): 1.71 V
• Supply Current: 3 uA
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Shutdown: Yes
• Sensitivity: 0.976 mg/digit, 1.953 mg/digit, 3.906 mg/digit
• Package / Case: QFN-16
• Output Type: Digital
• Package Type: QFN
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3mm
• Product Height (mm): 1mm
• Product Length (mm): 3mm
• Mounting: Surface Mount
• Pin Count: 16
• Acceleration Range: ± 2g, ± 4g, ± 8g
• No. Of Axes: 3
• Ic Interface Type: I2C, Serial
• Sensor Case Style: QFN
• No. Of Pins: 16
• Supply Voltage Range: 1.71V To 1.89V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 64. MMA8450Q Register Map
Sensors
Freescale Semiconductor
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
TRANSIENT_COUNT
FF_MT_COUNT_2
TRANSIENT_CFG
TRANSIENT_SRC
TRANSIENT_THS
FF_MT_THS_2
ASLP_COUNT
PULSE_THSX
PULSE_THSY
PULSE_THSZ
PULSE_TMLT
PULSE_LTCY
PULSE_WIND
PULSE_CFG
PULSE_SRC
CTRL_REG1
CTRL_REG2
CTRL_REG3
CTRL_REG4
CTRL_REG5
OFF_X
OFF_Y
OFF_Z
FF/Motion Debounce 2 R/W
Control Reg4 R/W (Interrupt
FF/Motion Threshold 2 R/W
Transient Threshold R/W
Transient Debounce R/W
Control Reg3 R/W (Wake
Auto-Sleep Counter R/W
(Interrupt Configuration)
Pulse X Threshold R/W
Pulse Y Threshold R/W
Pulse Z Threshold R/W
Pulse 2nd Window R/W
Transient Config. R/W
Pulse First Timer R/W
Interrupts from Sleep)
Transient Source R
Pulse Latency R/W
Control Reg 1 R/W
Control Reg 2 R/W
Pulse Config. R/W
Control reg5 R/W
Pulse Source R
Enable Map)
X 8-bit offset
Y 8-bit offset
Z 8-bit offset
INT_CFG_ASLP INT_CFG_FIFO INT_CFG_TRANS INT_CFG_LNDPRT
INT_EN_ASLP
ASLP_RATE1
FIFO_GATE
DBCNTM
DBCNTM
Wind7
Tmlt7
Ltcy7
DPA
D7
D7
D7
ST
D7
D7
D7
—
—
—
0
0
0
WAKE_TRANS
ASLP_RATE0
INT_EN_FIFO
Wind6
THS6
THS6
Tmlt6
Ltcy6
ELE
RST
D6
D6
EA
D6
D6
D6
D6
—
—
0
0
0
WAKE_LNDPRT
INT_EN_TRANS
ZDPEFE
ZDPE
Wind5
THS5
THS5
Tmlt5
Ltcy5
D5
D5
D5
D5
D5
D5
—
—
0
0
0
0
0
INT_EN_LNDPRT
WAKE_PULSE
ZSPEFE
THSX4
THSY4
THSZ4
Wind4
THS4
THS4
ZSPE
Tmlt4
Ltcy4
DR2
D4
D4
D4
D4
D4
D4
—
—
0
INT_CFG_PULSE
WAKE_FF_MT_1
INT_EN_PULSE
YDPEFE
THSX3
THSY3
THSZ3
YDPE
Wind3
THS3
THS3
Tmlt3
Ltcy3
ELE
DR1
D3
EA
D3
D3
D3
D3
D3
0
INT_CFG_FF_MT_1 INT_CFG_FF_MT_2 INT_CFG_DRDY
INT_EN_FF_MT_1
WAKE_FF_MT_2
ZTRANSE
YSPEFE
ZTEFE
THSX2
THSY2
THSZ2
Wind2
THS2
YSPE
THS2
Tmlt2
Ltcy2
DR0
D2
D2
D2
D2
D2
D2
0
INT_EN_FF_MT_2
YTRANSE
XDPEFE
YTEFE
THSX1
THSY1
THSZ1
XDPE
Wind1
THS1
THS1
Tmlt1
Ltcy1
SLPE
IPOL
FS1
D1
D1
D1
D1
D1
D1
MMA8450Q
INT_EN_DRDY
XTRANSE
XSPEFE
PP_OD
XTEFE
THSX0
THSY0
THSZ0
Wind0
MODS
XSPE
THS0
THS0
Tmlt0
Ltcy0
FS0
D0
D0
D0
D0
D0
D0
45