MMA8205EG Freescale Semiconductor, MMA8205EG Datasheet - Page 7

• Manufacturer Part Number: MMA8205EG
• Description: Board Mount Accelerometers X- AXIS 50G SOIC 16
• Manufacturer: Freescale Semiconductor
• Series: MMA82r

Specifications of MMA8205EG

• Sensing Axis: X
• Acceleration: 50 g
• Sensitivity: 8.02 mV/g
• Package / Case: SOIC-16
• Axis: X or Y
• Acceleration Range: ±50g
• Voltage - Supply: 6.3 V ~ 30 V
• Output Type: Digital
• Bandwidth: -
• Interface: SPI
• Mounting Type: Surface Mount
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Sensors
Freescale Semiconductor
1.4
form a filter network for the internal voltage regulator. Two capacitors are shown for redundancy; this configuration improves
reliability in the event of an open capacitor connection. A single 1 μF capacitor may be used in place of C1 and C2, however
connection from the capacitor to both CREG pins is required. CHOLD stores energy during signal transitions on BUSIN and
BUSOUT. The value of this capacitor is typically 1 μF; however, this depends upon data rates and bus utilization.
1.5
Thirty-two OTP bits are factory-programmed with a unique serial number during the manufacturing and test. Five additional bits
are factory-programmed to indicate the full-scale range and axis of sensitivity. Device identification data may be read at any time
while the device is active.
NOTE: LEAVE OPEN OR CONNECT TO SIGNAL MONITOR.
MMA81XXEG/MMA82XXEG/MMA82XXTEG
A typical satellite module configuration supporting daisy-chain configuration is shown in
MODULE INTERCONNECT
DEVICE IDENTIFICATION
GROUND-LOSS DETECTION DISABLED
1
2
3
4
5
6
7
8
SEE NOTE
N/C
N/C
C
V
C
D
V
CLK
PP
GND
REG
FIL
OUT
/TEST
/D
IN
BUSRTN
BUSOUT
C1
1 μF
BUSIN
C
H
V
V
V
REG
CAP
SS
SS
SS
MMA81XXEG/MMA82XXEG/MMA82XXTEG
16
15
14
13
12
11
10
9
N/C
Figure 1-6. Typical Satellite Module Diagram
Figure 1-5. V
1
2
3
4
5
6
7
8
N/C
N/C
C
V
C
D
V
CLK
PP
GND
BUSRTN
REG
FIL
OUT
/TEST
/D
IN
GND
BUSOUT
BUSRTN
/D
BUSIN
MMA81XXEG/MMA82XXEG/MMA82XXTEG
IN
C
H
V
V
V
REG
Connection Options
CAP
SS
SS
SS
1 nF
16
15
14
13
12
11
10
1
2
3
4
5
6
7
8
9
N/C
N/C
C
V
C
D
V
CLK
GROUND-LOSS DETECTION ENABLED
1.00 kΩ, 1%
C2
1 μF
PP
GND
REG
FIL
OUT
(SINGLE-ENDED SYSTEMS ONLY)
/TEST
/D
IN
BUSOUT
BUSRTN
C
BUSIN
HOLD
C
H
V
V
V
REG
CAP
Figure
SS
SS
SS
16
15
14
13
12
11
10
9
1-6. Capacitors C1 and C2
BUSIN
BUSOUT
BUSRTN
MMA81XXEG
BUSRTN
CHASSIS
7