MMA7455LR1 Freescale Semiconductor, MMA7455LR1 Datasheet - Page 20
MMA7455LR1
Manufacturer Part Number
MMA7455LR1
Description
Board Mount Accelerometers 3-AXIS DIGITAL 2 4 8G
Manufacturer
Freescale Semiconductor
Datasheet
1.MMA7455LT.pdf
(35 pages)
Specifications of MMA7455LR1
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)
2.4 V
Supply Current
400 uA
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Sensitivity
64 LSB/g
Package / Case
LGA-14
Output Type
Digital
Acceleration Range
± 2g, ± 4g, ± 8g
No. Of Axes
3
Ic Interface Type
I2C, SPI
Sensor Case Style
LGA
No. Of Pins
14
Supply Voltage Range
2.4V To 3.6V
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MMA7455LR1
Manufacturer:
ON
Quantity:
12 000
Company:
Part Number:
MMA7455LR1
Manufacturer:
FSL
Quantity:
3 000
Part Number:
MMA7455LR1
Manufacturer:
FREESCALE
Quantity:
20 000
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