LIS3DHTR 3-Axis Accelerometer | Ultra-Low-Power I2C/SPI MEMS Sensor | LGA-16 | STMicroelectronics

LIS3DHTR

Three-axis digital-output accelerometer built on ST MEMS technology with I²C/SPI interface, selectable ±2g/±4g/±8g/±16g full scales, 1.71–3.6 V supply range, embedded FIFO, dual interrupt generators, and temperature sensor, delivering ultra-low-power operation with output data rates from 1 Hz to 5.3 kHz for orientation, vibration monitoring, and motion sensing in portable devices.

Product Description

Product Overview

The LIS3DHTR is the tape-and-reel ordering code of STMicroelectronics’ LIS3DH “nano” family three-axis linear accelerometer, featuring a capacitive MEMS sensing element and 16-bit digital outputs accessible through I²C or SPI serial interfaces. It offers user-selectable full scales of ±2g/±4g/±8g/±16g and output data rates from 1 Hz up to 5.3 kHz, combined with embedded high-pass and low-pass filters to cover both low-frequency tilt sensing and higher-frequency vibration measurements.

With a 32-level FIFO buffer, two programmable interrupt generators, self-test, and an embedded temperature sensor, the LIS3DHTR supports free-fall, motion/stillness, 6D/4D orientation, threshold, and single/double-tap detection in ultra-low-power modes, significantly offloading the host MCU and reducing overall system power. Packaged in a 3 × 3 × 1.0 mm LGA-16 outline, it operates from 1.71 to 3.6 V over –40°C to +85°C, making it well suited for smartphones, wearables, IoT nodes, and industrial equipment vibration and orientation monitoring.

Key Features

Ultra-low-power three-axis MEMS linear accelerometer
Selectable full scales: ±2g / ±4g / ±8g / ±16g
Output data rates (ODR): 1 Hz to 5.3 kHz depending on configuration and axes
Supply voltage range: 1.71 to 3.6 V with independent 1.8 V logic supply option
Digital interfaces: I²C (up to 400 kHz) and SPI (up to 10 MHz)
16-bit data output with embedded 32-level FIFO buffer
Two programmable interrupt generators for motion, free-fall, click, and 6D/4D orientation detection
Ultra-low-power mode current down to about 2 µA, ideal for battery and Embedded temperature sensor, self-test capability, and 10,000 g shock survivability
Package: 3 × 3 × 1.0 mm LGA-16, surface-mount, tape-and-reel (TR)

Product Applications

Orientation detection, screen rotation, and step counting in smartphones, tablets, and wearables
Drop detection, vibration monitoring, and wake-up triggering in IoT endpoints and smart home devices
Vibration trend monitoring, anomaly alerting, and predictive maintenance in industrial and motor-driven equipment
3-axis acceleration measurement in portable instruments, data loggers, and motion trackers
Tilt alarms, tamper/movement detection, and door/window state sensing in security systems
Motion and gesture capture in game controllers, VR input devices, and interactive terminals

Technical Specifications

Parameter	Specification
Axes	3 axes (X, Y, Z)
Full Scale	±2g / ±4g / ±8g / ±16g
Output Resolution	16-bit
Output Data Rate	1 Hz – 5.3 kHz
Supply Voltage	1.71 – 3.6 V
Interfaces	I²C, SPI
FIFO Buffer	32 levels
Interrupts	2 interrupt generators
Power Consumption	~2 µA in low-power mode
Operating Temp	–40°C ~ +85°C
Package	LGA-16, 3×3×1.0 mm

RFQ & Support

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