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STK8321

Digital Output 3-axis MEMS Accelerometer

1. OVERVIEW

Description

The STK8321 is a ±2g/±4g/±8g, 3-axis linear accelerometer, with digital output (I2C and SPI). It is a low profile capacitive MEMS sensor featuring, compensation for 0g offset and gain errors, and conversion to 12-bit digital values at user configurable samples per second. The device can be arranged for sensor data changes through the interrupt pins. The STK8321 is available in a small 2.0mm x 2.0mm x 1.0 mm LGA package and it is guaranteed to operate over an extended temperature range from -40 °C to +85 °C.

Feature

Low Voltage Operation:

- Supply Internal Domain Voltage: 1.7V~3.6V

- I/O Voltage Range: 1.62V~3.6V

±2g/±4g±/8g dynamically selectable full-scale

I2C digital output interface

3-wire and 4-wire SPI digital output

2 physical interrupts

Low noise

12 bit data output

10000 g high shock survivability

2.0mm x 2.0mm x 1.0 mm LGA Package

Configurable Samples from 14 to 2000 samples per second

Sleep Feature for Low Power Consumption

On-chip interrupt controller, motion-triggered interrupt-signal generation for 

- New data

- Any-motion (slope) detection

- Significant motion

On-chip FIFO, integrated 32 frames FIFO buffer

RoHS Compliant

Halogen Free

Environmentally Preferred Product

Moisture Sensitivity Level 3

Applications

Display orientation

Gaming and virtual reality input devices

Impact recognition and logging

Vibration monitoring and compensation

Pedometer

Activity trackers for fitness apps

Smart power management for mobile devices