MMA8452Q

Sensors

Freescale Semiconductor, Inc.

7

2.2

Electrical Characteristics

Table 3. Electrical Characteristics @ VDD = 2.5V, VDDIO = 1.8V, T = 25°C unless otherwise noted.

Parameter

Test Conditions

Symbol

Min

Typ

Max

Unit

Supply Voltage

1. There is no requirement for power supply sequencing. The VDDIO input voltage can be higher than the VDD input voltage.

1.95

2.5

3.6

V

Interface Supply Voltage

VDDIO(1)

1.62

1.8

3.6

V

Low-Power Mode

ODR = 1.56 Hz

6

μA

ODR = 6.25 Hz

6

ODR = 12.5 Hz

6

ODR = 50 Hz

14

ODR = 100 Hz

24

ODR = 200 Hz

44

ODR = 400 Hz

85

ODR = 800 Hz

165

Normal Mode

ODR = 1.56 Hz

24

μA

ODR = 6.25 Hz

24

ODR = 12.5 Hz

24

ODR = 50 Hz

24

ODR = 100 Hz

44

ODR = 200 Hz

85

ODR = 400 Hz

165

ODR = 800 Hz

165

Current during Boot Sequence, 0.5 mSec max

duration using recommended Bypass Cap

VDD = 2.5V

Idd Boot

1mA

Value of Capacitor on BYP Pin

-40°C 85°C

Cap

75

100

470

nF

STANDBY Mode Current @25°C

VDD = 2.5V, VDDIO = 1.8V

STANDBY Mode

1.8

5

μA

Digital High Level Input Voltage

SCL, SDA, SA0

VIH

0.7*VDDIO

V

Digital Low-Level Input Voltage

SCL, SDA, SA0

VIL

0.3*VDDIO

V

High Level Output Voltage

INT1, INT2

VOH

0.9*VDDIO

V

Low-Level Output Voltage

INT1, INT2

VOL

0.1*VDDIO

V

Low-Level Output Voltage

SDA

VOLS

0.1*VDDIO

V

Power on Ramp Time

0.001

1000

ms

ready for operation

Cbyp = 100 nF

BT

—

350

500

µs

2. Note that the first sample is typically not very precise. Depending on ODR/MODS settings, a minimum of three samples is recommended for

full precision.

1.1/ODR

s

Turn-on time (Power Down to STANDBY)

Ton

2

ms

Operating Temperature Range

Top

-40

+85

°C