Freescale Semiconductor Sensor Kit for MMA865XFC RDMMA865X RDMMA865X Fiche De Données

Codes de produits
RDMMA865X
Page de 64
MMA8652FC
Sensors
Freescale Semiconductor, Inc.
5
1.2
Pin descriptions
Figure 2. Pin connections (bottom view)
1.3
Typical application circuit
Figure 3. Typical application circuit
Table 1. Pin descriptions
Pin #
Pin Name
Description
Notes
1
VDD
Power supply
Device power is supplied through the VDD line. Power supply decoupling capacitors 
should be placed as close as possible to pin 1 and pin 8 of the device.
2
SCL
(1)
1. The control signals SCL and SDA are not tolerant of voltages higher than VDDIO + 0.3 V. If VDDIO is removed, then the control signals SCL 
and SDA will clamp any logic signals with their internal ESD protection diodes. The SDA and SCL I
2
C connections are open drain, and 
therefore require a pullup resistor to VDDIO.
I
2
C Serial Clock
7-bit I
2
C device address is 0x1D. 
3
INT1
Interrupt 1
The interrupt source and pin settings are user-programmable through the I
2
C interface. 
4
BYP
Internal regulator output 
capacitor connection
5
INT2
Interrupt 2
See INT1.
6
GND
Ground 
7
GND
Ground 
8
VDDIO
Digital Interface Power supply
9
GND
Ground 
10
 I
2
C Serial Data
See SCL.
1
5
6
10
VDD
SCL
INT1
BYP
INT2
SDA
GND
VDDIO
GND
GND
VDD
SCL
INT1
BYP
INT2
SDA
VDDIO
1
2
10
9
8
7
6
0.1 
μF
μF
0.1 
μF
3
4
5
Top View
VDDIO
VDDIO
1 k
Ω
1 k
Ω
Note: 4.7 k
Ω Pullup resistors on INT1/INT2 can be added for open-drain operation.
.1 
μF