MMA7455LT Freescale Semiconductor, MMA7455LT Datasheet - Page 19

• Manufacturer Part Number: MMA7455LT
• Description: Board Mount Accelerometers 3-AXIS DIGITAL 2 4 8G
• Manufacturer: Freescale Semiconductor

Specifications of MMA7455LT

• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 4 g, 8 g
• 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
• Sensor Case Style: LGA
• No. Of Pins: 14
• Supply Voltage Range: 2.4V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Filter Terminals: SMD
• Rohs Compliant: Yes
• Ic Interface Type: I2C, SPI
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

BASIC CONNECTIONS
Pin Descriptions
Sensors
Freescale Semiconductor
DVDD_IO
IADDR0
AVDD
GND
GND
N/C
Figure 14. Pinout Description
Top View
Recommended PCB Layout for Interfacing Accelerometer to Microcontroller
INT1/DRDY
SDA/SDI/SDO
SDO
N/C
N/C
INT2
Figure 15. I
2
C Connection to MCU
Table 8. Pin Descriptions
Pin #
10
11
12
13 SDA/SDI/SDO I
14
1
2
3
4
5
6
7
8
9
INT1/DRDY
Pin Name
DVDD_IO
SCL/SPC
IADDR0
AVDD
GND
GND
INT2
SDO
N/C
N/C
N/C
CS
Digital Power for I/O pads
Ground
No internal connection. Leave
unconnected or connect to Ground.
I
Ground
Analog Power
SPI Enable (0), I
Interrupt 1/ Data Ready
Interrupt 2
No internal connection. Leave
unconnected or connect to Ground.
No internal connection. Leave
unconnected or connect to Ground.
SPI Serial Data Output
Data Input (SDI), 3-wire interface
Serial Data Output (SDO)
I
Clock (SPC)
2
2
2
C Address Bit 0
C Serial Data (SDA), SPI Serial
C Serial Clock (SCL), SPI Serial
Description
2
C Enable (1)
MMA7455L
Status
Output
Output
Output
Output
Drain/
Input/
Open
Input
Input
Input
Input
Input
Input
Input
Input
Input
Input
Pin
19