LIS2DW12TR | ST (ST Microelectronics) | 3-axis MEMS accelerometer

II. Core Performance Parameters

Measuring range (software-configurable): ±2g / ±4g / ±8g / ±16g

Output data rate (ODR): 1.6 Hz to 1600 Hz

Power Consumption (Key Highlight)

Power-down mode: 50 nA

Low-power constant-on mode: <1μA

High-resolution mode: 90 μA

Noise: As low as 1.3 mg RMS in low-power mode

Storage: 32-level FIFO to cache sampled data and reduce MCU wake-up frequency.

Communication interfaces: I²C + SPI; SDO pin switching for I2C address; Independent IO power domain

Electrical: Supply voltage 1.62V ~ 3.6V, compatible with 1.8V/3.3V systems.

Temperature range: -40°C to +85°C, consumer/extended industrial grade, not AEC-Q100 automotive grade.

Output: 16-bit numeric output; Dual hardware interrupt pins INT1/INT2

Shock Resistance: 10,000g high impact tolerance, with built-in self-test function.

Additional: Built-in temperature sensor

3. Built-in hardware event engine (no MCU computation required)

The hardware directly detects motion, outputs an interrupt, and enables the MCU to enter long-term sleep mode for power saving:

Click or double-click to trigger tap detection and free-fall detection.

Activity/non-activity, static/motion detection, Sleep-to-Wake awakening

6D/4D posture and orientation recognition, landscape and portrait mode switching

Android Standard Stillness Detection

IV. Typical Application Scenarios

Wearable devices: smart bands, smart watches, TWS earbuds, portable health monitoring devices, hearing aids.

IoT: Wireless sensing nodes, smart labels, remote controls, smart homes.

Consumer Electronics: Tablets, Game Controllers, Flip-Cover Wake-up, Screen Orientation Rotation

Portable medical devices, fall detection, asset vibration monitoring

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