Технические характеристики
Производитель: STMicroelectronics
Device Type: 3-axis digital MEMS accelerometer, supplied in tape and reel format for automated surface mounting assembly
Core Electrical Parameters
Operating voltage range: 1.71 V to 3.6 V
Programmable full-scale measurement ranges: ±2 g, ±4 g, ±8 g, ±16 g
Output data resolution: 12-bit digital output
Adjustable output data rate from 1 Hz up to 5.37 kHz
Typical active mode supply current: 11 μA under low-power configuration
Standby current is negligible when sensing function is disabled
Built-in internal temperature sensor
Диапазон рабочих температур: от -40 ℃ до +85 ℃
Package specification: 16-pin LGA package with dimensions 3 mm × 3 mm × 1 mm
Main Features
Supports both I2C and SPI digital communication interfaces for flexible MCU connection
Integrated built-in event detection logic including free fall detection, single tap and double tap recognition, tilt and wake-up triggering
Configurable internal FIFO buffer to store sampled data and reduce host polling frequency
Three selectable power consumption modes to balance measurement accuracy and battery endurance
Two programmable interrupt output pins for alerting main processor upon preset motion events
High tolerance against mechanical vibration and impact shocks, suitable for portable device environments
Built-in ESD protection circuits to resist static electricity interference
Small footprint structure saves PCB layout space
Halogen-free packaging materials meet RoHS environmental requirements
Типичные сценарии применения
Smartphone screen automatic rotation and motion triggering functions
Wearable devices step counting and activity tracking modules
Remote control gesture recognition and tilt operation systems
Portable electronic equipment free fall protection monitoring
IoT wireless nodes vibration and shock detection
Toys and consumer electronic interactive motion sensing units
