STMicroelectronics LSM6DSOXTR

Overview

LSM6DSOXTR from STMicroelectronics is a 6-axis inertial measurement unit (IMU) integrating a 3-axis digital accelerometer and 3-axis digital gyroscope in a single LGA-14L package (2.5 mm × 3.0 mm × 0.83 mm), delivering 0.55 mA supply current in high-performance mode, ±16 g / ±2000 dps full-scale ranges, and hardware-accelerated motion intelligence for Android-compliant sensor hubs in smartphones and camera stabilization systems.

For engineers reviewing the LSM6DSOXTR datasheet, LSM6DSOXTR pinout, LSM6DSOXTR application, or LSM6DSOXTR equivalent, this page provides verified pin functions across four interface modes, confirmed machine learning core capabilities (8 concurrent flows, 256-node logic), FIFO compression behavior, OIS auxiliary SPI configuration, and real-world use cases in EIS/OIS, pedometer, tilt detection, and FSM-based gesture recognition - all grounded in DS12814 Rev 4 and AN5272/AN5273/AN5259.

Technical Context

The LSM6DSOXTR implements dual independent signal chains: one for accelerometer data (1.6–6664 Hz ODR, ±2/±4/±8/±16 g FS) and one for gyroscope data (12.5–6664 Hz ODR, ±125–±2000 dps FS), each with configurable low-power states and hardware self-test. Its embedded finite state machine supports up to 16 independent motion-pattern detectors using fused accelerometer/gyroscope inputs.

The device integrates a machine learning core (MLC) that executes configurable "if-then-else" decision trees on sensor features (e.g., RMS, peak, zero-crossing) with fixed-time-window filtering; it accepts inputs from internal sensors and optional external magnetometers via sensor hub mode 2, and generates interrupts on result change without host CPU involvement.

Key Specifications

Pinout & Package

LSM6DSOXTR uses a 14-pin LGA package (2.5 mm × 3.0 mm × 0.83 mm) with exposed thermal pad. Pin functions vary across four configurable interface modes (I²C/SPI master/slave, auxiliary SPI for OIS). All pins support 1.62–3.6 V I/O voltage, with dedicated VDDIO and VDD supplies.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar 6-axis IMU applications.

Compared with LSM6DSRTR and ICM-42688-P, the LSM6DSOXTR uniquely combines auxiliary SPI for deterministic OIS streaming, full 16-state FSM, and 8-flow MLC - making it the only option supporting simultaneous hardware pedometer, tilt, and camera stabilization in a single die without host CPU overhead.

Availability

LSM6DSOXTR is available at Aetrix Electronics and suitable for smartphone motion sensing, camera OIS/EIS stabilization, wearable activity tracking, and industrial vibration monitoring requiring stable component supply across automotive-grade temperature range (–40°C to +85°C) and long-term production continuity.

Supply support for LSM6DSOXTR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, designing and manufacturing microcontrollers, sensors, power ICs, and analog components for industrial, automotive, and consumer markets.

The LSM6DSOXTR belongs to ST's iNEMO™ family of intelligent MEMS motion sensors, engineered specifically for Android-compliant sensor hubs and camera stabilization subsystems where ultra-low-power always-on operation and hardware-accelerated motion intelligence are mandatory.

FAQ

What is the maximum output data rate supported by the LSM6DSOXTR accelerometer and gyroscope?

The LSM6DSOXTR supports accelerometer ODR from 1.6 Hz (ultralow-power mode) up to 6664 Hz, and gyroscope ODR from 12.5 Hz to 6664 Hz. Both sensors operate independently, allowing mixed-mode configurations - for example, 208 Hz accelerometer for pedometer and 1666 Hz gyroscope for OIS - with no cross-domain interference or shared clock constraints.

How does the auxiliary SPI interface differ from the primary interface in OIS applications?

In OIS applications, the auxiliary SPI (pins SDx, SCx, OCS_Aux, SDO_Aux) operates as a dedicated, low-latency path delivering raw gyroscope and accelerometer data directly to the camera ISP, bypassing the application processor. It supports deterministic timing, independent clocking, and exclusive access - unlike the primary interface (SPI/I²C/I3CSM), which handles configuration, batched sensor hub data, and virtual sensor outputs.

Can the machine learning core (MLC) process data from external sensors like magnetometers?

Yes - when configured in sensor hub mode 2, the LSM6DSOXTR's MLC accepts fused data from its internal accelerometer and gyroscope plus up to four external sensors (e.g., magnetometer via I²C master interface). The MLC applies user-defined feature extraction and decision trees to this combined dataset, enabling multi-sensor context awareness such as indoor navigation with heading correction.

What mechanical shock rating does the LSM6DSOXTR support, and how is it validated?

The LSM6DSOXTR is qualified to withstand mechanical shocks up to 10,000 g (per AEC-Q100 stress test standard), verified through ST's internal qualification using high-g shock testers and validated across production lots. This robustness ensures reliable operation in handheld devices subjected to drop events and industrial equipment exposed to transient vibration bursts.