ISM330DHCXTR (STMicroelectronics 6-axis IMU Inertial Sensor), Industrial Grade 6-axis Inertial Measurement Unit

ISM330DHCXTR (STMicroelectronics 6-axis IMU Inertial Sensor)

TR = Tape & Reel packaging for SMT mounting. ISM330DHCX is the base part number. It is an industrial-grade 6-axis Inertial Measurement Unit (3-axis accelerometer + 3-axis gyroscope) with an on-chip Machine Learning Core (MLC), part of the iNEMO family, targeted for Industry 4.0 applications.

Functions

Detects acceleration, vibration, angular velocity, tilt angle and motion status of objects, and outputs attitude & motion data to the MCU.

Key highlights: Integrated Machine Learning Core (MLC) plus FSM (Finite State Machine). Motion patterns can be recognized directly inside the sensor, which reduces the computing load of the host MCU and avoids continuous computation by the MCU. Ideal for low-power devices for vibration monitoring, attitude recognition and fault diagnosis.

Core Features

3-axis accelerometer: measures vibration, shock, tilt, free fall and step counting

3-axis gyroscope: measures rotation, angular velocity, attitude stabilization and angle tracking

Built-in MLC: supports motion classification and abnormal vibration detection of equipment

Programmable FSM, 9KB FIFO buffer, Sensor Hub (supports external sensor connection)

Embedded event interrupts: tilt detection, free fall, wake-up, single/double tap, 6D orientation detection

Interfaces: I2C + SPI plus auxiliary SPI; suitable for OIS (Optical Image Stabilization) and closed-loop stabilization control

Integrated on-chip temperature sensor and self-test function

Key Specifications

Package: LGA-14, dimension 2.5 × 3.0 × 0.83 mm (SMT mount, directly soldered to PCB)

Supply voltage: 1.71V ~ 3.6V

Selectable accelerometer full-scale ranges: ±2 / ±4 / ±8 / ±16 g

Selectable gyroscope full-scale ranges: ±125 / ±250 / ±500 / ±1000 / ±2000 / ±4000 dps (high angular rate for high-speed rotating equipment)

Operating temperature: -40℃ ~ +105℃ (industrial wide temperature range)

Accelerometer noise density: 60 µg/√Hz

Gyroscope noise density: 5 mdps/√Hz

Output channels: synchronous 6-axis data output

Applications

Industrial automation: AGVs, industrial robots, equipment vibration monitoring, predictive maintenance (MLC is well suited for machine tool/motor vibration fault identification)

Drones, gimbal stabilization, Optical Image Stabilization (OIS)

Industrial IoT, asset tracking, outdoor monitoring devices

Smart meters, construction machinery, motion attitude detection

Positioning: Industrial grade, not a regular consumer-grade smartphone IMU. Features wide temperature range and high stability, optimized for Industry 4.0 vibration monitoring. This differentiates it from ordinary 6-axis sensors.