LSM6DSRTR - 6-Axis IMU w/ 4000dps Gyro | STMicroelectronics
MPN: LSM6DSRTR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.45 | $64.50 |
| 100 | $5.4 | $540.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
LSM6DSRTR Overview
A 6-axis IMU (inertial measurement unit) is a system-in-package that combines a 3-axis accelerometer and a 3-axis gyroscope to measure linear acceleration and angular rate in three dimensions. In the broader taxonomy, an IMU is a type of motion sensor, which sits under MEMS sensors, which are a category of semiconductor devices. IMUs serve as the primary feedback element in motion-tracking systems, providing raw inertial data that application processors, sensor hubs, or motor controllers fuse with other sources (GPS, magnetometers) for orientation, navigation, and stabilization.
Key features include an extended ±4000 dps gyroscope range (vs the more common ±2000 dps), an embedded Machine Learning Core (MLC) and finite state machine for on-chip gesture classification, a configurable FIFO up to 4 kB, and an integrated I3C interface for high-bandwidth host communication. The wide gyro range makes the LSM6DSR particularly attractive for high-rotation-rate platforms such as drones, robots, and gaming controllers, eliminating the saturation that would occur with mainstream ±2000 dps parts.
Architecturally, the LSM6DSR uses a single-mass MEMS accelerometer and a single-mass MEMS gyroscope with dedicated ASIC signal conditioning, a temperature-compensated analog front end, and an interrupt-driven digital output block. Power consumption is approximately 0.55 mA (high-performance mode) down to 4 µA (low-power mode), and the part supports an operating supply range of 1.71 V to 3.6 V. The sensor hub and MLC capability allow gesture and activity recognition to run directly on the device, offloading the host processor.
Typical applications include drone flight controllers and gimbal stabilization, wearable fitness and gesture tracking, robotics and industrial orientation sensing, AR/VR motion tracking, gaming controllers and pointing devices, and OIS (optical image stabilization) assist in smartphone camera modules. The extended 4000 dps range especially suits FPV quadcopters where rapid yaw rotation is common.
When designing with this part, allocate a 1 uF decoupling capacitor close to VDD and follow ST's recommended LGA-14 PCB land pattern for thermal and mechanical reliability. The interrupt pins INT1/INT2 should be tied to the host's wake-capable GPIO for event-driven operation that minimizes host sleep current.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer datasheet alone, giving engineers a single source for parametric depth, sourcing, and BOM risk analysis.
Drop-in alternatives for LSM6DSRTR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with LSM6DSRTR (same form factor and footprint) — differing in Package, Gyroscope Full-Scale Range, Current Consumption (High-Performance Mode), Embedded Features, Interface.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LSM6DSOTR
✅ Drop-In✓ In Stock
$2.65 / Unit
View Datasheet →LSM6DSLTR
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →LSM6DS3TR
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →LSM6DSRXTR
✅ Drop-In ⚠️ Specs Unverified📋 Reference alternative (not in catalog)
LSM6DSRTR Maximum Ratings & Electrical Characteristics
| Sensor Type | Accelerometer, Gyroscope, Temperature (6-axis IMU) |
| Output Interface | I2C, SPI, I3C |
| Accelerometer Full-Scale Range | ±2/±4/±8/±16 g |
| Gyroscope Full-Scale Range | ±125/±250/±500/±1000/±2000/±4000 dps |
| Supply Voltage | 1.71 V to 3.6 V |
| Operating Temperature | -40 C to +85 C |
| Package | LGA-14 (2.5 x 3.0 mm) |
| Mounting Type | Surface Mount |
| FIFO | Up to 4 kB (configurable) |
| On-chip Processing | MLC (Machine Learning Core), FSM, sensor hub |
| RoHS Status | Compliant |
| Shipping Packaging | Tape & Reel (TR suffix) |
LSM6DSRTR Pin Configuration
| Pin 1 | VDD — Power supply (1.71 V to 3.6 V) |
| Pin 2 | GND — Ground |
| Pin 3 | RESERVED — Reserved (leave floating or per datasheet) |
| Pin 4 | VDDIO — I/O supply voltage (1.71 V to VDD) |
| Pin 5 | CS — SPI chip select (active low, tie high for I2C) |
| Pin 6 | SCL/SPC — I2C clock / SPI serial clock |
| Pin 7 | SDA/SDI/SDO — I2C data / SPI serial data (tri-state) |
| Pin 8 | SDO/SA0 — SPI SDO / I2C slave address LSB |
| Pin 9 | INT1 — Programmable interrupt 1 |
| Pin 10 | INT2 — Programmable interrupt 2 |
| Pin 11 | RESERVED — Reserved (connect to GND per datasheet) |
| Pin 12 | RESERVED — Reserved (leave floating per datasheet) |
| Pin 13 | GND — Ground (thermal/electrical) |
| Pin 14 | RESERVED — Reserved (connect to GND per datasheet) |
Typical Applications
LSM6DSRTR is suitable for 7 applications: Drone Flight Controller / FPV Quadcopter, Wearable Fitness and Gesture Tracking, Robotics and Industrial Orientation Sensing, AR/VR Motion Tracking, Gaming Controllers and Pointing Devices, Optical Image Stabilization (OIS) Assist, IoT and Smart-Home Motion Nodes.
Drone Flight Controller / FPV Quadcopter
The LSM6DSRTR's extended ±4000 dps gyroscope range is well suited to FPV drones and quadcopter flight controllers, where aggressive aerobatic maneuvers routinely exceed ±2000 dps and would saturate mainstream gyros. The 6-axis IMU provides linear acceleration and angular rate at sub-millisecond ODRs, feeding Betaflight, iNav, or PX4 attitude estimators with low-latency feedback. Beyond its high-range gyro, the part supports an on-chip Machine Learning Core that offloads gesture and shock detection from the host MCU, useful for detecting crashes, free-fall, or quick flips. Place the part on a rigid section of the flight controller away from vibration sources and pair with a 1 µF VDD decoupling capacitor. Compared to a discrete accel-plus-gyro solution, the LSM6DSR reduces PCB area and BOM cost while enabling tighter sensor fusion.
Recommended
Wearable Fitness and Gesture Tracking
Wearable bands, smartwatches, and fitness trackers benefit from the LSM6DSRTR's low-power modes (down to ~4 µA) and on-chip Machine Learning Core for activity classification. The IMU delivers precise accelerometer and gyroscope data at output data rates up to 6.66 kHz, letting designers trade resolution for current consumption. The MLC can run wrist-tilt, walk/run, and pickup gestures directly on the device, eliminating host MCU wake events and extending battery life. The LGA-14 (2.5x3 mm) footprint fits inside small wrist form factors. Combined with FIFO-based buffering, the part enables truly always-on motion awareness at µA-level standby current. Compared to discrete two-chip motion solutions, the LSM6DSR offers a single-package BOM with hardware classifier support.
Recommended
Robotics and Industrial Orientation Sensing
Industrial robots, AGVs (autonomous guided vehicles), and robotic arms use the LSM6DSRTR to measure tilt, vibration, and rotation across 6 axes, helping maintain accurate pose estimation when wheel odometry or vision is unreliable. The wide ±4000 dps gyro range captures fast tool-changer swings without saturating, while the ±16 g accelerometer sustains shock events such as pallet impacts or emergency stops. The I3C interface supports high-bandwidth communication with industrial host processors, and the configurable FIFO reduces host bus traffic. Operating from 1.71 V to 3.6 V suits single-rail industrial designs fed by 3.3 V backplanes. The industrial operating range of -40 C to +85 C and RoHS/REACH compliance allow deployment in factory and process-control environments.
Recommended
AR/VR Motion Tracking
AR/VR headsets and controllers rely on the LSM6DSRTR to track head and hand motion with low-latency 6-axis inertial data, enabling stable rendering and accurate controller pose. The IMU's high ODR (up to 6.66 kHz), low gyro noise, and tight sensitivity tolerance across temperature support the low-jitter pose estimation demanded by XR pipelines. The on-chip MLC can classify gestures such as pinch or swipe directly on-device, offloading routine interactions from the XR SoC. The wide ±4000 dps gyro range covers fast headset flicks and controller swings without clipping. Designers typically pair the LSM6DSR with a magnetometer for absolute heading reference. Compared to camera-based inside-out tracking, inertial data gives sub-frame latency that is critical to avoid simulator sickness.
Recommended
Gaming Controllers and Pointing Devices
Game controllers, presentation remotes, and 3D pointing devices use the LSM6DSRTR to convert physical motion into pointer or camera movements with minimal lag. The 6-axis IMU provides accelerometer and gyroscope data at high data rates, producing smooth aiming in first-person shooter titles. On-chip MLC gesture recognition can replace dedicated buttons (e.g., flick-to-attack or shake-to-reset), simplifying industrial design and reducing mechanical wear. The wide ±4000 dps gyro range tracks fast wrist flicks common in competitive titles. I2C and SPI host interfaces integrate easily with modern wireless SoCs such as the STM32WB. Compared to discrete sensor stacks, the LSM6DSR cuts PCB area and BOM cost while adding on-chip gesture logic.
Recommended
Optical Image Stabilization (OIS) Assist
Smartphone camera modules use the LSM6DSRTR as an OIS-assist sensor, providing high-frequency hand-jitter data to a dedicated OIS controller that actuates the lens or sensor-shift assembly. The IMU's low gyro noise and high data rate produce precise jitter measurements, while its small LGA-14 (2.5x3 mm) footprint fits inside densely packed camera modules. The wide ±4000 dps gyro range also captures fast walking/running motion without saturation, extending the low-light capture range. Compared to a discrete gyro-only OIS sensor, the LSM6DSR combines accel and gyro in one device and uses less PCB real estate. Designers should isolate the IMU from the lens actuator mechanically to avoid coupling motion feedback.
Recommended
IoT and Smart-Home Motion Nodes
Battery-powered IoT nodes and smart-home sensors use the LSM6DSRTR to detect occupancy, vibration, or tampering events at very low current draw. The 6-axis IMU consumes approximately 4 µA in low-power mode and supports event-driven interrupts that wake the host only on threshold crossings, eliminating continuous polling. The on-chip MLC runs classifiers such as door-knock or appliance-cycle detection without waking the host, reducing wireless transmissions and extending battery life. The I3C interface connects to modern low-power IoT SoCs without bus contention. Compared to piezo-vibration or magnetic-reed alternatives, the LSM6DSR provides richer motion context at similar or lower power consumption.
Recommended
Recommended Products Summary
Engineering reference data for LSM6DSRTR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LSM6DSOTR | LSM6DSLTR | LSM6DS3TR |
|---|---|---|---|---|
| Package | LGA-14 (2.5x3 mm) | LGA-14 (2.5x3 mm) - same | LGA-14 (2.5x3 mm) - same | LGA-14 (2.5x3 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Gyroscope Full-Scale Range | ±125 to ±4000 dps | ±125 to ±2000 dps | ±125 to ±2000 dps | ±125 to ±2000 dps |
| Accelerometer Full-Scale Range | ±2/±4/±8/±16 g | ±2/±4/±8/±16 g | ±2/±4/±8/±16 g | ±2/±4/±8/±16 g |
| Interface | I2C, SPI, I3C | I2C, SPI, I3C | I2C, SPI | I2C, SPI |
| On-chip MLC / FSM | Yes (MLC + FSM) | Yes (FSM only) | Yes (FSM only) | No |
| FIFO | 4 kB | 4 kB | 4 kB | 8 kB (legacy cap) |
| Supply Voltage | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V | 1.71 V to 3.6 V |
| Operating Temperature | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C | -40 C to +85 C |
Key Differentiators
- Extended ±4000 dps gyroscope range vs ±2000 dps on most peers (vs LSM6DSOTR)
- On-chip Machine Learning Core (MLC) for gesture/activity classification (vs LSM6DS3TR)
- I3C support in addition to I2C/SPI (vs LSM6DSLTR)
Design Notes
Place a 1 µF X7R/X5R ceramic decoupling capacitor directly between VDD (pin 1) and the ground paddle (pin 13) using short, wide traces to minimize parasitic inductance. Keep the decoupling loop area as small as possible and avoid routing noisy digital lines beneath the IMU. The LGA-14 package has no central thermal pad but requires a clean ground return on pin 13.
The LSM6DSR is pin-compatible with the LSM6DSO and LSM6DS3 but requires firmware updates for the wider ±4000 dps range and the MLC/FSM register blocks. Always check the WHO_AM_I register (expected value 0x6B) at startup to detect part-to-part swap on a mixed production line. Do not assume the IMU supports I3C unless pin 4 (VDDIO) is properly decoupled and the host issues I3C bus reset sequences.
For I2C operation at 400 kHz and below, the IMU's internal pull-ups are typically sufficient on short traces (<50 mm). For SPI operation above 10 MHz or on long traces, add 33 Ω series resistors on SCL/SPC and SDA/SDI to dampen reflections. Keep the IMU at least 5 mm from switching regulators and high-current traces to avoid magnetometer-style bias from switching noise coupling into the MEMS structure.
The LSM6DSR's gyro zero-rate offset drifts with temperature; the part includes an internal temperature sensor and ST-recommended compensation routines. In designs where the IMU sits near a heat source (e.g., downstream of a power-hungry SoC), route thermal isolation keepouts or add 1 mm clearance to the IMU footprint. Always enable ST's high-ODR mode at power-up so temperature compensation has the latest samples.
Low-power mode typically operates at 1.6 Hz and consumes ~4 µA, while high-performance mode draws ~0.55 mA. Use the INT1/INT2 interrupts to enter low-power mode between events rather than continuous polling. The MLC and FSM blocks add roughly 20-50 µA when enabled but can eliminate many host wake events, yielding a net system-level power reduction in always-on designs.
Compliance Information
RoHS and REACH compliant per ST product page. Not AEC-Q100 qualified; for automotive OIS assist use the LSM6DSRXTR variant.
