Технические характеристики
Производитель: STMicroelectronics
Device Type: Low-power three-axis digital MEMS accelerometer, tape and reel surface mount packaged
Core Electrical Parameters
Operating voltage range: 1.71V ~ 3.6V
Selectable full-scale ranges: ±2g, ±4g, ±8g, ±16g
Adjustable output data rate: 1Hz to 5.37kHz
Available resolution modes: 8-bit, 10-bit, 12-bit
Current consumption
Low-power operation: 2μA typical
Normal continuous sampling mode: 57μA typical
Power-down mode current is extremely low
Built-in internal temperature sensor
Operating temperature scope: -40℃ ~ +85℃
Package specification: 12-pin LGA package, size 2mm × 2mm × 0.7mm
Main Features
Dual I2C and SPI communication interfaces compatible with most mainstream microcontrollers
Built-in hardware event detection functions including free fall monitoring, single tap, double tap, tilt wake-up and motion trigger
Internal FIFO storage buffer reduces data interaction frequency between sensor and host MCU to save overall power consumption
Multiple switchable power modes to balance detection precision and battery power loss
Two programmable interrupt pins for timely feedback of motion events
Optimized internal noise suppression circuit ensures stable sampling data under slight vibration scenarios
Built-in ESD protection and high mechanical shock endurance
Ultra-small packaging size greatly saves PCB layout space
Halogen-free construction conforms to RoHS environmental requirements
Типичные сценарии применения
Wearable smart devices step counting and activity monitoring
Bluetooth audio equipment posture sensing and automatic sleep wakeup
Mobile phone screen rotation and motion trigger functions
Battery-operated IoT vibration and shock detection nodes
Portable electronic equipment anti-fall protection modules
Smart home small devices tilt and gesture control units
