DEMOMMA8491 Freescale Semiconductor, DEMOMMA8491 Datasheet

DEMOMMA8491

Manufacturer Part Number

DEMOMMA8491

Description

Acceleration Sensor Development Tools DEMO B FOR MMA8491

Manufacturer

Freescale Semiconductor

Datasheet

1.LFSTBEB8491.pdf (2 pages)

Specifications of DEMOMMA8491

Rohs

yes

Tool Is For Evaluation Of

MMA8491Q

Acceleration

10000 g

Sensing Axis

Triple

Interface Type

I2C

Operating Voltage

1.95 V to 3.6 V

Maximum Operating Temperature

+ 85 C

Minimum Operating Temperature

- 40 C

Operating Current

400 nA

Output Type

Digital

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Target Applications

• Smart meters

• Home appliances

• Asset tracking applications

• Gaming

• Remote controls

Xtrinsic

Accelerometers

MMA8491Q Xtrinsic 3-Axis

Accelerometer

Ultra low power and cost efficient

Overview

The MMA8491Q Xtrinsic 3-axis accelerometer is an ultra-low-power tamper detection and tilt sensor

that enables smart meters, home appliances, asset tracking applications, gaming and remote controls

through auto-on/auto-sleep energy-efficient operation housed in a specialized industrial package.

The MMA8491Q Xtrinsic accelerometer is simple, yet robust with reduced system and implementation

cost for reduced development time. Its unique single sample and hold measurement method allows

for ease of use.

The MMA8491Q Xtrinsic accelerometer operates with reduced power consumption by intelligently

determining when the application should operate at a low-power mode or shut off, therefore

prolonging battery life. The tilt threshold detection is used to enable/disable host systems or trigger

actions, which reduces duty cycles and saves power. Set up is not required since the auto-on

provides a short wait to the first data out, reducing average power consumption to less than one

micro amp. Without software load on the core system, more sleep time is possible on the host,

which also saves power.

GND

VDD

BYP

Xtrinsic MMA8491Q 3-Axis Accelerometer Block Diagram

MMA8491Q 3-Axis Tilt Sensor Block Diagram

Sensing Blocks

Transducer

Regulator

Voltage

X-Axis

Y-Axis

Z-Axis

I/O Pins

Converter

Internal

Osc.

C to V

Digital Blocks

Clock

Gen.

ADC

Embedded

Functions

Supporting Blocks

OUT

Optional

SDA

SCL

Related parts for DEMOMMA8491

DEMOMMA8491 Summary of contents

Page 1

Target Applications • Smart meters • Home appliances • Asset tracking applications • Gaming • Remote controls Xtrinsic Accelerometers MMA8491Q Xtrinsic 3-Axis Accelerometer Ultra low power and cost efficient Overview The MMA8491Q Xtrinsic 3-axis accelerometer is an ultra-low-power tamper detection and tilt sensor that enables ...

Page 2

... V Development Tools Part Number Description DEMOMMA8491 The DEMOMMA8491 includes two simple boards. The breakout board contains a sample device. The demo board can be positioned for tilt detection signaled by the LEDs that light up corresponding to each of the three axes. LFSTBEB8491 The LFSTBEB8491 Sensor Toolbox kit contains two PCB boards: MMA8491Q accelerometer board and the interface board ...

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