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STMicroelectronics ISM330ISNTR
- Part No.:
- ISM330ISNTR
- Manufacturer:
- STMicroelectronics
- Category:
- IMUs (Inertial Measurement Units)
- Package:
- 14-VFLGA
- Datasheet:
-
ISM330ISNTR.pdf
- Description:
- INEMO INERTIAL MODULE: ALWAYS-ON
- Quantity:
- Payment:
- Shipping:
Inventory:318
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Product details
Overview
ISM330ISNTR from STMicroelectronics is a 6-axis inertial measurement unit (IMU) system-in-package integrating a 3-axis accelerometer (±2/±4/±8/±16 g), 3-axis gyroscope (±125–±2000 dps), and an Intelligent Sensor Processing Unit (ISPU) - enabling on-sensor AI inference for real-time edge analytics. It operates at 0.59 mA in high-performance mode, delivers 70 µg/√Hz accelerometer noise density, and supports SPI/I²C interfaces with independent I/O supply (1.62 V) for industrial IoT and condition monitoring applications.
For engineers reviewing the ISM330ISNTR datasheet, ISM330ISNTR pinout, ISM330ISNTR application, or ISM330ISNTR equivalent, key selection considerations include ISPU programmability via NanoEdge AI Studio, dual-mode sensor hub capability (up to 4 external sensors), and dedicated support for on-device machine learning inference - distinguishing it from standard IMUs without embedded processing.
Technical Context
The ISM330ISNTR implements a dual-core architecture: a sensor core (8-bit register interface) handling accelerometer/gyroscope configuration and data output, and a 32-bit ISPU core (STRED architecture) with 32 KB program RAM and 8 KB data RAM executing C-coded signal processing and ML algorithms. The ISPU accesses raw sensor data via dedicated 16-bit two's complement registers (e.g., ISPU_ARAW_X_L/H, ISPU_GRAW_Y_L/H).
It supports two hardware configuration modes: Mode 1 enables SPI/I²C host communication only; Mode 2 adds master I²C capability for connecting up to four external sensors. Interrupts (INT1/INT2) are programmable and can be triggered by ISPU-generated events, enabling ultra-low-power wake-up of host MCUs - critical for battery-operated industrial and asset-tracking nodes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accelerometer FS | ±2/±4/±8/±16 g - selectable full-scale range determines dynamic range and resolution (e.g., 0.061 mg/LSB at ±2 g) |
| Gyroscope FS | ±125/±250/±500/±1000/±2000 dps - wider ranges support high-speed motion capture without saturation |
| Current (HP mode) | 0.59 mA - total current for accelerometer + gyroscope only; enables always-on sensing in power-constrained nodes |
| Accel Noise Density | 70 µg/√Hz - defines minimum detectable vibration amplitude in high-performance mode |
| ISPU Memory | 32 KB program RAM + 8 KB data RAM - sufficient for compact ML models (e.g., anomaly classifiers) generated by NanoEdge AI Studio |
| Temp Range | −40 °C to +85 °C - qualified for industrial environments including factory automation and outdoor asset tracking |
| Interface | SPI (10 MHz) / I²C (up to 1 MHz) - dual-protocol flexibility simplifies integration with diverse host controllers |
Pinout & Package
ISM330ISNTR uses a 14-pin LGA package (2.5 mm × 3.0 mm × 0.83 mm), optimized for space-constrained PCB layouts in wearable and edge sensor modules.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 SDO/SA0 | Serial Data Output / I²C Address LSB | Configures SPI output or sets device I²C address (0x6A/0x6B) depending on Mode 1/2 selection |
| 4 INT1 | Programmable Interrupt 1 | Asserted by sensor events (e.g., FIFO threshold, motion detection) or ISPU-triggered conditions |
| 5 Vdd_IO | I/O Power Supply | Independent 1.62–3.6 V rail powers digital interfaces, decoupled from core Vdd for mixed-voltage systems |
| 6,7 GND | Ground Reference | Dual ground pins reduce impedance and improve noise immunity for analog and digital sections |
| 8 Vdd | Analog Core Supply | 1.71–3.6 V supply for MEMS sensing elements and internal ADCs; requires local 100 nF filtering |
| 9 INT2 | Programmable Interrupt 2 / MDRDY | In Mode 2, functions as master I²C ready signal for synchronized external sensor reads |
| 12 CS | Interface Mode Select | High = I²C enabled / SPI disabled; Low = SPI enabled / I²C disabled - hardware-selectable protocol |
| 13 SCL/SPC | I²C Clock / SPI Clock | Shared pin supports both protocols; timing compliant with I²C Fast Mode Plus (1 MHz) and SPI (10 MHz) |
| 14 SDA/SDI/SDO | I²C Data / SPI Input/Output | 3-wire SPI uses this pin bidirectionally; 4-wire SPI separates SDI/SDO via pin 1 SDO/SA0 |
Key Features
| Feature | Design Value |
|---|---|
| Embedded ISPU Core | STRED-based 32-bit programmable processor with 32 KB program RAM and 8 KB data RAM - executes C-coded ML models directly on sensor data |
| NanoEdge AI Studio Support | Only ISM330ISNTR supports libraries generated by NanoEdge AI Studio - enables rapid on-sensor anomaly detection without host MCU involvement |
| Sensor Hub Capability | Integrated master I²C controller (Mode 2) manages up to four external sensors (e.g., pressure, humidity) - reduces host polling overhead and system latency |
| Low-Power Always-On Operation | 0.46 mA in low-power mode (accel + gyro only) with configurable ODR down to 1.6 Hz - extends battery life in remote monitoring nodes |
| Temperature Sensor | 16-bit ADC with 256 LSB/°C sensitivity and 52 Hz refresh rate - provides on-chip thermal compensation and environmental context |
Applications
| Industrial Condition Monitoring | Smart Asset Tracking |
|---|---|
Use Scenario: Continuous vibration and temperature monitoring of motors, pumps, and conveyors in factory settings. IC Role / Device Role / Timing Role: 6-axis IMU captures high-fidelity motion signatures; ISPU runs real-time FFT and anomaly classification to flag bearing wear before failure. Use Value: Reduces unplanned downtime by enabling predictive maintenance - no cloud round-trip required for initial fault detection. | Use Scenario: GPS-denied indoor/outdoor tracking of high-value tools, containers, or medical equipment across warehouses and logistics hubs. IC Role / Device Role / Timing Role: Accelerometer detects movement onset; ISPU triggers low-power wake-up and fusion with external GNSS/Bluetooth modules only when motion exceeds threshold. Use Value: Extends battery life to >1 year on coin-cell power while maintaining location event accuracy within 2 m indoors. |
| IoT Edge Anomaly Detection | Personal Health Motion Analytics |
Use Scenario: Real-time detection of abnormal machine behavior (e.g., unbalanced rotation, misalignment) in Industry 5.0 deployments. IC Role / Device Role / Timing Role: ISPU executes lightweight neural networks trained on domain-specific vibration spectra; outputs binary alerts via INT1 to host MCU. Use Value: Eliminates need for continuous data streaming - cuts wireless bandwidth usage by >90% and avoids cloud dependency. | Use Scenario: Wearable devices performing gesture recognition (e.g., hand washing, fall detection) and activity classification (walking, cycling, sedentary). IC Role / Device Role / Timing Role: Gyroscope and accelerometer feed time-series windows to ISPU; C-coded feature extraction (RMS, zero-crossing) precedes ML inference. Use Value: Achieves <50 µA average system current during motion sensing - enables multi-week operation on compact Li-ion cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 6-axis IMU applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM6DSRXTR | No ISPU; includes finite-state machine (FSM) and machine learning core (MLC) with fixed library support | Limited to pre-trained motion patterns (e.g., step counting); cannot run custom NanoEdge AI Studio models | Select when deterministic, low-complexity motion triggers suffice and custom ML development is unnecessary |
| ICM-42688-P | Includes AI engine (AIE) with 64 KB program memory but requires external flash for model storage; no integrated NanoEdge AI Studio toolchain | Supports larger models but demands additional BOM components and firmware complexity for on-sensor inference | Select when higher memory capacity is needed for multi-class classification, and design team has AIE development expertise |
Compared with LSM6DSRXTR and ICM-42688-P, the ISM330ISNTR uniquely delivers production-ready, developer-friendly on-sensor ML via NanoEdge AI Studio - reducing time-to-market for custom anomaly detection while minimizing host MCU load and power consumption.
Availability
ISM330ISNTR is available at Aetrix Electronics and suitable for industrial condition monitoring, smart asset tracking, and IoT edge anomaly detection requiring stable component supply and long-term lifecycle assurance.
Supply support for ISM330ISNTR 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, specializing in MEMS sensors, microcontrollers, and power management ICs for industrial, automotive, and consumer markets.
The ISM330ISNTR belongs to ST's intelligent inertial sensor product line, designed specifically to embed AI processing at the sensor node - enabling autonomous, low-latency decision-making in battery-powered and infrastructure-constrained edge applications.
FAQ
What distinguishes ISM330ISNTR from ISM330ISTR?
The ISM330ISNTR is the only variant certified to execute machine learning libraries generated by ST's NanoEdge AI Studio. While both share identical mechanical and electrical specifications, only the ISM330ISNTR includes the dedicated ISPU firmware and memory configuration required for on-sensor AI inference - making it mandatory for NanoEdge-based development and production.
Does ISM330ISNTR require external memory to run NanoEdge AI Studio models?
No. All NanoEdge AI Studio-generated models execute entirely within the ISM330ISNTR's on-chip ISPU memory: 32 KB for program code and 8 KB for data storage. No external flash or RAM is needed - the entire inference pipeline runs autonomously using only the integrated resources.
How does the ISPU communicate with the host microcontroller?
The ISPU communicates exclusively through the shared 8-bit register map of the sensor core using SPI or I²C. Host access to ISPU data occurs via dedicated registers (e.g., ISPU_DOUT_00_L/H for output, ISPU_DUMMY_CFG_1_L/H for configuration), with no separate physical interface - preserving pin count and simplifying PCB routing.
Can ISM330ISNTR operate without enabling the ISPU?
Yes. The ISM330ISNTR functions fully as a conventional 6-axis IMU even with the ISPU powered down or unused. Accelerometer and gyroscope data remain accessible via standard SPI/I²C registers, and all interrupt, FIFO, and sensor hub features operate independently - providing backward compatibility with legacy motion firmware.
ISM330ISNTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-VFLGA
- 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
ISM330ISNTR FAQ
1.How can I place an order for ISM330ISNTR through Aetrix?
Please submit a Request for Quotation (RFQ) for ISM330ISNTR 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 ISM330ISNTR reliable?
The price and inventory of ISM330ISNTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ISM330ISNTR is usually 5 days.
3.What payment methods are accepted for ISM330ISNTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ISM330ISNTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ISM330ISNTR?
ISM330ISNTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ISM330ISNTR 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 ISM330ISNTR?
For technical support, including ISM330ISNTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ISM330ISNTR requirements.
6.How does Aetrix verify that ISM330ISNTR is sourced from the original manufacturer or authorized distributors?
All ISM330ISNTR 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 ISM330ISNTR meets industry standards.
7.What is the process for return or replacement of ISM330ISNTR?
All ISM330ISNTR units undergo pre-shipment inspection (PSI). If there is an issue with ISM330ISNTR, 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 ISM330ISNTR part is unused and in its original packaging.
Return procedure for ISM330ISNTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ISM330ISNTR Tags
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BMI323
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ICM-42670-P
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ICM-42605
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