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STMicroelectronics LSM9DS0TR
- Part No.:
- LSM9DS0TR
- Manufacturer:
- STMicroelectronics
- Category:
- IMUs (Inertial Measurement Units)
- Package:
- 24-TFLGA Module
- Datasheet:
-
LSM9DS0TR.pdf
- Description:
- IMU ACCEL/GYRO/MAG I2C/SPI 24LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,003
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Product details
Overview
LSM9DS0TR from STMicroelectronics is a 3-axis inertial measurement unit (IMU) integrating a digital 3D accelerometer (±2/±4/±6/±8/±16 g), 3D gyroscope (±245/±500/±2000 dps), and 3D magnetometer (±2/±4/±8/±12 gauss) in a single LGA-24 package. It delivers synchronized 16-bit sensor data via I²C or SPI, supports embedded FIFO, self-test, temperature sensing, and motion-triggered interrupts - enabling compact, low-power orientation tracking in handheld consumer electronics.
For engineers reviewing the LSM9DS0TR datasheet, LSM9DS0TR pinout, LSM9DS0TR application, or LSM9DS0TR equivalent, this page provides verified technical context, validated pin functions, confirmed operating modes (power-down, low-power, stream/FIFO), real-world use cases for gesture recognition and indoor navigation, and two field-tested alternative IMUs with documented interface and full-scale differences.
Technical Context
The LSM9DS0TR implements three independent sensor cores sharing a common digital interface: the accelerometer and magnetometer (XM block) operate on a shared I²C/SPI bus with separate slave addresses (0x1E and 0x1D), while the gyroscope (G block) uses its own address (0x6B). Each sensor supports programmable full-scale ranges, output data rates up to 952 Hz (accelerometer), 833 Hz (gyro), and 100 Hz (magnetometer), with configurable high-pass filtering and interrupt generation.
Its embedded FIFO (up to 32 samples per sensor) enables burst-mode data capture without host CPU intervention, and intelligent power management allows individual sensor blocks to be placed in power-down mode. The device includes factory-trimmed calibration for zero-rate/zero-g/zero-gauss offsets and supports click/double-click detection using acceleration thresholds and timing windows.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.4 V to 3.6 V analog supply - compatible with single-cell Li-ion/Li-poly and 3.3 V logic systems without level shifting. |
| Accelerometer Full Scale | ±2/±4/±6/±8/±16 g - selectable range determines resolution (e.g., 0.061 mg/LSB at ±2 g) and dynamic range for shock/vibration detection. |
| Gyroscope Full Scale | ±245/±500/±2000 dps - higher ranges support fast rotational motion (e.g., gaming controllers), lower ranges improve angular resolution (8.75 mdps/LSB at ±245 dps). |
| Magnetometer Full Scale | ±2/±4/±8/±12 gauss - optimized for Earth's magnetic field (≈0.25–0.65 gauss) with ±2 gauss offering highest resolution (0.08 mg/LSB). |
| Digital Interface | I²C (100/400 kHz) and SPI (4-wire or 3-wire) - dual protocol support simplifies integration into MCU platforms with limited peripheral availability. |
| Operating Temperature | −40 °C to +85 °C - qualified for industrial and consumer environments including smartphones, wearables, and portable navigation devices. |
| Embedded Features | FIFO (32-sample depth), self-test, temperature sensor (±2 °C accuracy), programmable interrupts, and click/double-click detection - reduces host processing load and enables autonomous motion event handling. |
Pinout & Package
LGA-24 (4 mm × 4 mm × 1.0 mm) land grid array package with 24 solder pads arranged in a 6×4 grid. Exposed thermal pad (center) improves thermal dissipation and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Analog power supply | 2.4–3.6 V input for all sensor cores; requires local 100 nF decoupling capacitor. |
| VDD_IO | I/O power supply | Supplies logic levels for SDA/SCL/MOSI/MISO/CS/SPC pins; may be tied to VDD if same voltage domain. |
| SCL / SPC | I²C clock / SPI clock | Shared pin: I²C mode uses open-drain with pull-up; SPI mode uses push-pull clock signal. |
| SDA / MOSI | I²C data / SPI master-out-slave-in | Shared bidirectional pin: I²C data line; SPI data input during write operations. |
| SA0 / MISO | I²C address LSB / SPI master-in-slave-out | Configures I²C slave address (0x1D or 0x1E for XM; 0x6A or 0x6B for G); outputs sensor data in SPI read mode. |
| CS_G / CS_XM | Gyro chip select / Accel-Mag chip select | Two independent active-low chip selects allow simultaneous or selective access to gyro and accel/mag blocks. |
| INT1 / INT2 | Programmable interrupt outputs | Dedicated open-drain outputs for motion detection, FIFO threshold, click, or data-ready events; configurable per sensor block. |
| GND | Ground reference | All analog and digital grounds tied internally; external connection required to PCB ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Triple-sensor integration | Co-located 3D accelerometer, gyroscope, and magnetometer enable precise 9-DOF orientation estimation without inter-device alignment errors. |
| Independent power control | Each sensor block (XM and G) can be individually enabled/disabled, allowing dynamic power optimization - e.g., disable gyro during static orientation hold. |
| Configurable FIFO | 32-word deep FIFO per sensor with stream, bypass, and FIFO modes - eliminates data loss during burst reads and reduces I²C/SPI traffic overhead. |
| Hardware motion detection | On-die detection of click/double-click, activity/inactivity, and FIFO watermark events - offloads real-time decision logic from host MCU. |
| Factory-calibrated offsets | Zero-g, zero-rate, and zero-gauss offsets pre-trimmed at production - reduces need for end-user calibration in cost-sensitive consumer applications. |
Applications
| Indoor Navigation | Smart User Interfaces |
|---|---|
Use Scenario: Pedestrian dead reckoning in GPS-denied environments (e.g., shopping malls, airports, underground stations). IC Role / Device Role / Timing Role: Provides fused 9-DOF motion data for step counting, heading estimation, and drift-compensated trajectory calculation. Use Value: Enables meter-level positioning accuracy over short distances without external infrastructure or RF dependency. |
Use Scenario: Touchless gesture control for smart TVs, kiosks, and home automation panels. IC Role / Device Role / Timing Role: Detects swipe, tilt, and rotation gestures via real-time acceleration and angular rate sampling at ≥200 Hz. Use Value: Delivers sub-100 ms latency between physical motion and UI response, supporting intuitive human-machine interaction. |
| Gaming Input Devices | Display Orientation Control |
Use Scenario: Motion-sensing controllers for VR headsets and console peripherals (e.g., pointing, aiming, weapon recoil simulation). IC Role / Device Role / Timing Role: Supplies synchronized 9-DOF data streams to game engine at 500+ Hz with <2 ms end-to-end latency. Use Value: Achieves sub-degree angular accuracy and minimal phase lag, critical for immersive VR presence and motion fidelity. |
Use Scenario: Automatic screen rotation in tablets and convertible laptops based on device tilt and orientation. IC Role / Device Role / Timing Role: Combines accelerometer tilt detection with magnetometer heading correction to resolve ambiguous portrait/landscape states. Use Value: Eliminates false rotations during slow movement and maintains stable orientation during brief accelerations (e.g., placing device on table). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 9-DOF inertial module applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM9DS1TR | Successor IC with improved noise performance (2.5× lower gyro noise density), extended temperature range (−40 °C to +105 °C), and unified I²C/SPI address mapping (single slave address). | Preferred for new designs requiring higher accuracy or automotive-adjacent thermal robustness; pin-compatible but requires firmware register map update. | Select LSM9DS1TR when upgrading for better motion fidelity or extended environmental tolerance; retains identical LGA-24 footprint and basic initialization flow. |
| ICM-20948 | 9-DOF IMU with integrated DMP (Digital Motion Processor), hardware sensor fusion, and lower power consumption (≈0.7 mA typical vs. 1.2 mA for LSM9DS0TR in active mode). | Better suited for battery-powered edge AI applications needing on-chip quaternion computation and ultra-low duty-cycle operation. | Choose ICM-20948 when offloading sensor fusion to hardware is critical and DMP firmware integration is feasible; not pin- or register-compatible. |
Compared with LSM9DS0TR, LSM9DS1TR offers enhanced metrology and thermal margin with minimal design change, while ICM-20948 shifts computational burden to on-die processing at the cost of increased firmware complexity and non-interchangeable register architecture.
Availability
LSM9DS0TR is available at Aetrix Electronics and suitable for indoor navigation systems, smart user interfaces, gaming input devices, and display orientation control requiring stable component supply across high-volume consumer electronics programs.
Supply support for LSM9DS0TR 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 LSM9DS0TR belongs to ST's iNEMO™ family of inertial modules, engineered specifically for space-constrained, battery-operated devices requiring high-accuracy 9-DOF motion sensing with minimal host processor overhead.
FAQ
What communication protocols does the LSM9DS0TR support?
The LSM9DS0TR supports both I²C and SPI serial interfaces. I²C operates at standard (100 kHz) and fast (400 kHz) modes with configurable slave addresses (0x1D/0x1E for accelerometer/magnetometer, 0x6A/0x6B for gyroscope). SPI supports 4-wire and 3-wire configurations with dedicated chip select lines for each sensor block (CS_XM and CS_G), enabling independent or time-multiplexed access.
How is sensor synchronization handled between the accelerometer, gyroscope, and magnetometer?
The LSM9DS0TR does not provide hardware-level sample synchronization across the three sensor blocks. Data must be timestamped and aligned in firmware using interrupt-driven reads (e.g., INT1 triggered by gyro data-ready) and known output data rates. The embedded FIFO helps reduce timing jitter during burst reads, but true temporal alignment requires host-side interpolation or external trigger coordination.
Does the LSM9DS0TR include factory calibration data for sensor offsets and sensitivities?
Yes - the LSM9DS0TR includes factory-trimmed zero-offset values for all three sensors: zero-g level (accelerometer), zero-rate level (gyroscope), and zero-gauss level (magnetometer). These are stored in dedicated offset registers (e.g., OFFSET_X_L_M/OFFSET_X_H_M) and applied automatically in normal mode. Sensitivity scaling factors are fixed per full-scale selection and documented in the datasheet (e.g., 0.061 mg/LSB at ±2 g).
Can the LSM9DS0TR operate in low-power mode while maintaining motion detection capability?
Yes - the LSM9DS0TR supports multiple low-power configurations. The accelerometer can remain active in low-power mode (ODR down to 1.6 Hz) while gyroscope and magnetometer are in power-down, enabling continuous activity/inactivity or click detection with total current draw as low as 10 µA. Interrupts (INT1/INT2) wake the host only upon threshold-crossing events, preserving system-level energy efficiency.
LSM9DS0TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- iNEMO
- Package/Case:
- 24-TFLGA Module
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Sensor Type:
- Accelerometer, Gyroscope, Magnetometer, Temperature, 9 Axis
- Output Type:
- I2C, SPI
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 24-LGA (4x4)
- Mounting Type:
- Surface Mount
LSM9DS0TR FAQ
1.How can I place an order for LSM9DS0TR through Aetrix?
Please submit a Request for Quotation (RFQ) for LSM9DS0TR 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 LSM9DS0TR reliable?
The price and inventory of LSM9DS0TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LSM9DS0TR is usually 5 days.
3.What payment methods are accepted for LSM9DS0TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LSM9DS0TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LSM9DS0TR?
LSM9DS0TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LSM9DS0TR 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 LSM9DS0TR?
For technical support, including LSM9DS0TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LSM9DS0TR requirements.
6.How does Aetrix verify that LSM9DS0TR is sourced from the original manufacturer or authorized distributors?
All LSM9DS0TR 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 LSM9DS0TR meets industry standards.
7.What is the process for return or replacement of LSM9DS0TR?
All LSM9DS0TR units undergo pre-shipment inspection (PSI). If there is an issue with LSM9DS0TR, 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 LSM9DS0TR part is unused and in its original packaging.
Return procedure for LSM9DS0TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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