MMA7455LR2 Freescale, MMA7455LR2 Datasheet - Page 20

• Manufacturer Part Number: MMA7455LR2
• Manufacturer: Freescale

Specifications of MMA7455LR2

• Family Name: MMA7455L
• Package Type: LGA
• Operating Supply Voltage (min): 2.4V
• Operating Supply Voltage (typ): 2.8V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Operating Temperature Classification: Industrial
• Product Depth (mm): 3mm
• Product Height (mm): 1mm
• Product Length (mm): 5mm
• Mounting: Surface Mount
• Pin Count: 14
• Lead Free Status / RoHS Status: Compliant

NOTES:
1.
2.
3.
4.
5.
6.
20
MMA7455L
Use a 0.1 μF and a 10 μF capacitor on AV
Physical coupling distance of the accelerometer to the microcontroller should be minimal.
PCB layout of power and ground should not couple power supply noise.
Accelerometer and microcontroller should not be a high current path.
Any external power supply switching frequency should be selected such that they do not interfere with the internal
accelerometer sampling frequency (sampling frequency). This will prevent aliasing errors.
Physical distance of the two GND pins (Pin 2 and Pin 5) tied together should be at the shortest distance.
Figure 16. SPI Connection to MCU
DD
to and DV
DD
to decouple the power source.
Freescale Semiconductor
Sensors