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STMicroelectronics LSM6DSRXTR
- Part No.:
- LSM6DSRXTR
- Manufacturer:
- STMicroelectronics
- Category:
- IMUs (Inertial Measurement Units)
- Package:
- 14-VFLGA Module
- Datasheet:
-
LSM6DSRXTR.pdf
- Description:
- CONSUMER MEMS
- Quantity:
- Payment:
- Shipping:
Inventory:2,902
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Product details
Overview
LSM6DSRXTR from STMicroelectronics is a 3-axis digital accelerometer and 3-axis digital gyroscope system-in-package (SiP) with extended ±4000 dps gyroscope full-scale range, ±16 g accelerometer full-scale range, and embedded Machine Learning Core (MLC) for on-sensor activity classification. It delivers Android-compliant motion sensing for optical image stabilization (OIS), VR/AR headsets, and sensor hub applications requiring high thermal stability (±0.007 %/°C gyro sensitivity drift) and low-power operation (0.7 mA in normal mode).
For engineers reviewing the LSM6DSRXTR datasheet, LSM6DSRXTR pinout, LSM6DSRXTR application, or LSM6DSRXTR equivalent, key selection considerations include its dual SPI/I²C/MIPI I3CSM interface support, auxiliary SPI for OIS data offload, 9 kbyte FIFO with compression, hardware finite state machine (16 states), and integrated temperature sensor (16-bit ADC, 52 Hz refresh).
Technical Context
The LSM6DSRXTR implements independent UI and OIS signal processing paths: the main FIFO handles accelerometer/gyro UI data with timestamping and batch mode, while the auxiliary SPI provides dedicated low-latency OIS output for camera modules. Its MLC executes up to 8 concurrent flows using configurable "if-then-else" nodes (512 total) on accelerometer/gyro data to classify motion patterns like walking or shaking without host CPU involvement.
Hardware acceleration includes tilt detection (accelerometer-only, ultra-low power), significant motion detection (SMD), pedometer functions (step detector/counter), and 6D/4D orientation interrupts. The device supports S4S synchronization for Qualcomm platforms and offers four configurable interface modes (I²C master/slave, SPI, auxiliary SPI) via pin strapping.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Gyroscope FS Range | ±4000 dps - enables high-dynamic-range motion capture for drone stabilization and robotics control |
| Accelerometer FS Range | ±16 g - supports shock detection and vibration monitoring in industrial equipment |
| Output Data Rate (ODR) | Up to 6.67 kHz - allows sub-millisecond motion sampling for real-time gesture recognition |
| FIFO Depth | 9 kbytes with 3× compression - reduces host polling frequency and system power by batching timestamped sensor data |
| MLC Capacity | 8 concurrent flows, 512 nodes - enables on-device classification of user-defined activities (e.g., running vs. cycling) without cloud dependency |
| Power Consumption (Normal Mode) | 0.7 mA at 208 Hz ODR - extends battery life in wearable devices beyond 7 days on a 100 mAh cell |
| Operating Temperature | −40 °C to +85 °C - ensures reliable performance in automotive cabin and outdoor IoT deployments |
Pinout & Package
LSM6DSRXTR is housed in a 14-pin LGA package measuring 2.5 × 3.0 × 0.83 mm, optimized for space-constrained mobile and wearable designs. Pin configuration supports four interface modes (I²C/SPI/master/Aux SPI) via strapping pins SDx and SCx.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SDO/SA0 | I²C address LSB / SPI data output | Determines I²C slave address (0x6A or 0x6B); outputs gyro/accel data in SPI 4-wire mode |
| 2 SDx | Mode select (Vdd_IO/GND) | Sets interface mode: Mode 1/2 (I²C/SPI), Mode 3/4 (Aux SPI enabled for OIS) |
| 3 SCx | Mode select (Vdd_IO/GND) | Complements SDx to define full interface configuration including I²C master capability |
| 4 INT1 | Programmable interrupt output | Signals free-fall, 6D orientation, click, or MLC result change; configurable active-high/low |
| 9 INT2 | Secondary interrupt / DEN / MDRDY | Supports data-ready signaling for sensor fusion or external sync with Qualcomm S4S protocol |
| 10 OCS_Aux | Auxiliary SPI chip select | Enables dedicated OIS data path-separate from main UI FIFO-to avoid interference with motion tracking |
| 11 SDO_Aux | Aux SPI data output | Delivers gyroscope and/or accelerometer OIS data directly to camera ISP with minimal latency |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Machine Learning Core (MLC) | Runs 8 concurrent classification flows on sensor data-reducing host CPU load and system power by >40% in always-on wearables |
| Smart FIFO with Compression | 9 kbytes dynamically allocated across accel/gyro/external sensors/timestamps-enabling 3× longer burst capture without host intervention |
| Dual Independent Signal Paths | Separate UI FIFO and Aux SPI paths ensure OIS data delivery remains deterministic even during heavy motion-tracking workloads |
| Hardware Finite State Machine (FSM) | 16 programmable FSMs detect custom gestures (e.g., wrist flick, double-shake)-eliminating need for firmware-based pattern matching |
| Android-Compliant Sensor Suite | Native support for significant motion, tilt, step counter, and batch mode-reducing Android HAL integration effort by ~60% |
Applications
| Optical Image Stabilization (OIS) | Virtual/Augmented Reality |
|---|---|
|
Use Scenario: Smartphone or action camera module requiring real-time angular correction to suppress handshake blur during video capture. IC Role / Device Role / Timing Role: Dual-path sensor providing low-latency gyroscope data via auxiliary SPI to camera ISP while buffering UI motion data in FIFO for host-side pose estimation. Use Value: Enables <1 ms OIS loop latency and eliminates FIFO contention between UI and camera subsystems-improving video sharpness by 35% in handheld recording. |
Use Scenario: VR headset tracking head rotation and translation for immersive rendering with sub-20 ms motion-to-photon latency. IC Role / Device Role / Timing Role: High-ODR (6.67 kHz) 6-axis motion sensor feeding fused orientation data to GPU via MIPI I3CSM, synchronized with display refresh. Use Value: Delivers <2.5° RMS orientation error over −40°C to +85°C-critical for reducing VR-induced nausea in outdoor environments. |
| Wearable Activity Recognition | Industrial Vibration Monitoring |
|
Use Scenario: Fitness tracker detecting step count, sleep posture, and workout type (running/cycling/yoga) with multi-day battery life. IC Role / Device Role / Timing Role: Always-on MLC executing activity classifiers on local sensor data; accelerometer in low-power mode (5.5 µA) with wake-on-motion. Use Value: Achieves >92% activity classification accuracy while consuming only 12 µA average current-enabling 14-day runtime on 120 mAh battery. |
Use Scenario: Predictive maintenance sensor mounted on motor housing to detect bearing wear through spectral analysis of vibration signatures. IC Role / Device Role / Timing Role: High-stability ±16 g accelerometer capturing 6.67 kHz raw time-series data; self-test verifies sensor integrity before each measurement cycle. Use Value: Provides ±0.1 mg/°C zero-g drift stability-ensuring amplitude accuracy remains within ±3% across factory floor temperature swings (15–70°C). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 6-axis inertial measurement unit applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM6DSOQTR | Lacks Machine Learning Core and auxiliary SPI; 3.5 kbyte FIFO; no S4S sync support | Suitable for cost-sensitive wearables without OIS or on-sensor AI, but requires host CPU for activity classification | Select when budget constraints outweigh need for on-device ML or camera OIS integration |
| ICM-42688-P | Higher gyro noise density (7.5 mdps/√Hz vs. 5 mdps/√Hz); no embedded FSM; 8 kbyte FIFO | Better suited for consumer drones needing high ODR but less demanding on thermal stability and gesture logic | Prefer for UAV flight controllers where gyro bandwidth matters more than long-term bias stability or hardware gesture engines |
Compared with LSM6DSOQTR and ICM-42688-P, the LSM6DSRXTR uniquely combines OIS-dedicated auxiliary SPI, 9 kbyte compressed FIFO, and production-ready MLC-making it the only option supporting simultaneous high-fidelity motion tracking, camera stabilization, and on-sensor AI in a single 2.5×3.0 mm footprint.
Availability
LSM6DSRXTR is available at Aetrix Electronics and suitable for optical image stabilization, VR/AR headsets, and industrial vibration monitoring requiring stable component supply across automotive-grade temperature ranges and long product lifecycles.
Supply support for LSM6DSRXTR 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, specializing in MEMS, microcontrollers, and power management ICs with vertical manufacturing control from design to wafer fabrication.
The LSM6DSRXTR belongs to ST's iNEMO inertial module family-designed specifically for always-on, low-power motion sensing in smartphones, wearables, and industrial edge devices with embedded intelligence.
FAQ
What is the maximum supported SPI clock frequency for LSM6DSRXTR?
The LSM6DSRXTR supports SPI clock frequencies up to 10 MHz in mode 3, with guaranteed timing margins (tsu(SI) = 5 ns, tv(SO) = 50 ns) verified per DS13007 Rev 3. This enables full 6-axis data reads at 6.67 kHz ODR without bus contention, critical for real-time VR tracking loops.
How does the auxiliary SPI interface differ from the main SPI in LSM6DSRXTR?
The auxiliary SPI (pins OCS_Aux, SDO_Aux, SDx, SCx) is electrically isolated from the main interface and dedicated exclusively to OIS data-allowing gyroscope and accelerometer outputs to be streamed to a camera ISP without interfering with UI FIFO access or interrupt generation for motion events.
Can the Machine Learning Core process external sensor data?
Yes-the MLC accepts input from the internal accelerometer and gyroscope, and also from up to four external sensors (e.g., magnetometer) via the Sensor Hub in Mode 2, using I²C master functionality to fetch and fuse data before classification.
What is the self-test accuracy for the gyroscope at ±2000 dps full scale?
At ±2000 dps full scale, the gyroscope self-test output change is specified as 150–700 dps (absolute value), corresponding to 1–10 LSBs (1 LSB = 70 mdps). This validates mechanical actuator integrity and analog front-end functionality without requiring external calibration equipment.
LSM6DSRXTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- iNEMO
- Package/Case:
- 14-VFLGA Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Sensor Type:
- Accelerometer, Gyroscope, Temperature, 6 Axis
- Output Type:
- I2C, SPI
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 14-LGA (2.5x3)
- Mounting Type:
- Surface Mount
LSM6DSRXTR FAQ
1.How can I place an order for LSM6DSRXTR through Aetrix?
Please submit a Request for Quotation (RFQ) for LSM6DSRXTR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for LSM6DSRXTR reliable?
The price and inventory of LSM6DSRXTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSM6DSRXTR is usually 5 days.
3.What payment methods are accepted for LSM6DSRXTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSM6DSRXTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSM6DSRXTR?
LSM6DSRXTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSM6DSRXTR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for LSM6DSRXTR?
For technical support, including LSM6DSRXTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSM6DSRXTR requirements.
6.How does Aetrix verify that LSM6DSRXTR is sourced from the original manufacturer or authorized distributors?
All LSM6DSRXTR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that LSM6DSRXTR meets industry standards.
7.What is the process for return or replacement of LSM6DSRXTR?
All LSM6DSRXTR units undergo pre-shipment inspection (PSI). If there is an issue with LSM6DSRXTR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The LSM6DSRXTR part is unused and in its original packaging.
Return procedure for LSM6DSRXTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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