MMA8451QT Freescale Semiconductor, MMA8451QT Datasheet - Page 10

• Manufacturer Part Number: MMA8451QT
• Description: Board Mount Accelerometers LOW G 3-AXIS 14BT EX VLT
• Manufacturer: Freescale Semiconductor

Specifications of MMA8451QT

• Sensing Axis: X, Y, Z
• Acceleration: 2 g, 4 g, 6 g
• Digital Output - Number Of Bits: 8 bit, 14 bit
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 1.95 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Digital Output - Bus Interface: I2C
• Shutdown: Yes
• Sensitivity: 1024 count/g, 2048 count/g, 4096 count/g
• Package / Case: QFN-16
• Output Type: Digital
• Acceleration Range: ± 2g, ± 4g, ± 8g
• No. Of Axes: 3
• Ic Interface Type: I2C, Serial
• Sensor Case Style: QFN
• No. Of Pins: 16
• Supply Voltage Range: 1.95V To 3.6V
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 3. Electrical Characteristics @ VDD = 2.5 V, VDDIO = 1.8 V, T = 25°C unless otherwise noted.
1. There is no requirement for power supply sequencing. The VDDIO input voltage can be higher than the VDD input voltage.
2.2
10
MMA8452Q
Supply Voltage
Interface Supply Voltage
Low Power Mode
Normal Mode
Current during Boot Sequence, 0.5 mSec max
duration using recommended Bypass Cap
Value of Capacitor on BYP pin
STANDBY Mode Current @25°C
Digital High Level Input Voltage
Digital Low Level Input Voltage
High Level Output Voltage
Low Level Output Voltage
Low Level Output Voltage
Power on Ramp Time
Time from VDDIO on and VDD > Vmin until I
ready for operation
Turn-on time (STANDBY to ACTIVE)
Turn-on time (Power Down to ACTIVE Mode)
Operating Temperature Range
SCL, SDA, SA0
SCL, SDA, SA0
INT1, INT2
INT1, INT2
SDA
Electrical Characteristics
Parameter
2
C
VDD = 2.5 V, VDDIO = 1.8 V
Test Conditions
STANDBY Mode
ODR = 1.56 Hz
ODR = 6.25 Hz
ODR = 12.5 Hz
ODR = 1.56 Hz
ODR = 6.25 Hz
ODR = 12.5 Hz
Cbyp = 100 nF
ODR = 100 Hz
ODR = 200 Hz
ODR = 400 Hz
ODR = 800 Hz
ODR = 100 Hz
ODR = 200 Hz
ODR = 400 Hz
ODR = 800 Hz
ODR = 50 Hz
ODR = 50 Hz
VDD = 2.5 V
I
I
I
-40°C 85°C
O
O
O
= 500 μA
= 500 μA
= 500 μA
VDDIO
Symbol
Idd Boot
I
VDD
VOLS
dd
I
VOH
VOL
dd
Cap
VIH
Ton
Ton
Top
VIL
I
BT
Stby
dd
LP
(1)
(1)
0.75*VDDIO
0.9*VDDIO
0.001
1.95
1.62
Min
-40
75
—
Typ
165
165
100
350
2.5
1.8
1.8
14
24
44
85
24
24
24
24
44
85
65
6
6
6
Freescale Semiconductor
2/ODR + 1 ms
2/ODR + 2 ms
0.3*VDDIO
0.1*VDDIO
0.1*VDDIO
1000
Max
470
500
+85
3.6
3.6
1
5
Sensors
Unit
μA
μA
μA
μA
ms
nF
µs
°C
V
V
V
V
V
s
V
V
s