MMA8452QR1 Freescale Semiconductor, MMA8452QR1 Datasheet - Page 46

• 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

46
MMA8452Q
Table 67. Accelerometer Output Data
0111 1111 1111
0111 1111 1110
0000 0000 0001
0000 0000 0000
1111 1111 1111
1000 0000 0001
1000 0000 0000
12-bit Data
0111 1111
0111 1110
0000 0001
0000 0000
1111 1111
1000 0001
1000 0000
8-bit Data
…
…
…
…
Range ±2g (15.6 mg)
Range ±2g (1 mg)
+0.0156g
-2.0000g
-0.0156g
-1.9844g
-2.0000g
0.0000g
1.9844g
1.9688g
-0.001g
-1.999g
1.999g
1.998g
0.001g
0.000g
…
…
…
…
Range ±4g (31.25 mg)
Range ±4g (2 mg)
+3.9688g
+3.9375g
+0.0313g
-4.0000g
-0.0313g
-3.9688g
-4.0000g
+3.998g
+3.996g
+0.002g
0.0000g
0.0000g
-0.002g
-3.998g
…
…
…
…
Range ±8g (62.5 mg)
Range ±8g (3.9 mg)
+7.9375g
+7.8750g
+0.0625g
-8.0000g
-0.0625g
-7.9375g
-8.0000g
+7.996g
+7.992g
+0.004g
0.0000g
0.0000g
-0.004g
-7.996g
…
…
…
…
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