LIS2DWLTR (STMicroelectronics) 3‑Axis Pure MEMS Accelerometer

# Item Parameters

Measuring Axis | X/Y/Z 3‑axis acceleration

Range (configurable) | ±2g / ±4g / ±8g / ±16g

Output Resolution | 16‑bit

Communication Interface | I2C, SPI

Package | LGA‑12, 2.0×2.0×0.7 mm

Supply Voltage VDD | 1.62V‑3.6V; independent IO supply, supports 1.8V system

Power Consumption | Power‑down sleep: 50 nA; Low‑power continuous mode: 0.38 μA; High‑performance mode: 90 μA

Noise | RMS noise 1.3 mg in low‑power mode

Output Data Rate (ODR) | 1.6Hz ~ 1600Hz

Built‑in Functions | Single‑tap / double‑tap detection, wake‑up / sleep, free‑fall detection, 6D orientation, 32‑level FIFO, dual interrupts INT1/INT2, on‑chip temperature sensor, self‑test

Operating Temperature | -40℃ ~ +85℃

Shock Resistance | 10000g

## Application Scope

✅ Consumer Wearables (Primary Market)

1. TWS Bluetooth earphones & charging cases: lid‑open detection, wear detection, tap/double‑tap control, sleep‑wake‑up

2. Smart bands & smartwatches: step counting, raise‑to‑wake, sleep monitoring, orientation recognition

3. Smart rings, smart glasses, stylus pens

✅ Smart Home & IoT

‑ Bluetooth remote controls: orientation sensing, tap‑to‑wake‑up, auxiliary key recognition

‑ Door/window / object orientation detection, simple vibration monitoring, asset tags

✅ Others

‑ Battery‑powered portable devices: drop detection, screen rotation

Not suitable for: Flight control (flight control requires IMU with accelerometer + gyroscope, e.g. ISM330DHCX, LSM6DSV16X); high‑shock industrial scenarios