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STMicroelectronics IIS2DLPCTR
- Part No.:
- IIS2DLPCTR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 12-WFLGA
- Datasheet:
-
IIS2DLPCTR.pdf
- Description:
- ACCEL 2-16G I2C/SPI 12LGA
- Quantity:
- Payment:
- Shipping:
Inventory:6,596
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Product details
Overview
IIS2DLPCTR from STMicroelectronics is a MEMS digital-output 3-axis accelerometer designed for industrial motion sensing, delivering ±2g/±4g/±8g/±16g full-scale ranges, ultra-low-power operation (50 nA in power-down, 120 μA in high-performance mode), and configurable output data rates from 1.6 Hz to 1600 Hz with 90 μg/√Hz noise density - deployed in vibration monitoring, tilt measurement, and impact-logging systems.
For engineers reviewing the IIS2DLPCTR datasheet, IIS2DLPCTR pinout, IIS2DLPCTR application, or IIS2DLPCTR equivalent, key selection considerations include on-the-fly reconfigurable operating modes (ultra-low-power to high-resolution), embedded motion-detection engine (free-fall, tap/double-tap, activity/inactivity, 6D orientation), 32-level FIFO, and dual I²C/SPI interface support across -40 °C to +85 °C.
Technical Context
The IIS2DLPCTR integrates a capacitive MEMS sensing element with a low-noise signal conditioning chain and a programmable digital motion processor. Its architecture supports five distinct operating modes-four low-power variants and one high-performance mode-with dynamic switching enabled via register writes without reset.
It features two independent programmable interrupts, an embedded temperature sensor (±2 °C accuracy), self-test capability, and hardware-accelerated motion functions including wakeup detection, highly configurable single/double-tap recognition, and 6D/4D orientation detection-all executed autonomously without host CPU intervention.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Full Scale Range | ±2g / ±4g / ±8g / ±16g - selectable per application; ±2g enables highest resolution (0.061 mg/LSB) for precision tilt or low-g vibration analysis. |
| Output Data Rate (ODR) | 1.6 Hz to 1600 Hz - supports slow environmental monitoring (e.g., structural tilt) and fast transient capture (e.g., impact shock). |
| Current Consumption | 50 nA (power-down), <1 μA (low-power active), 120 μA (high-performance) - enables multi-year battery life in wireless IIoT nodes. |
| Noise Density | 90 μg/√Hz - ensures stable DC-coupled measurements for inclination and static orientation applications. |
| Bandwidth | Up to 800 Hz - sufficient for machinery health monitoring up to 48 kHz rotational harmonics (via decimation). |
| FIFO Depth | 32-level - buffers sequential acceleration samples to reduce host polling frequency and system power overhead. |
| Supply Voltage | 1.62 V to 3.6 V - compatible with single-cell Li-ion, coin-cell, and industrial 3.3 V rails without external regulation. |
Pinout & Package
Package: LGA-12 (3.0 mm × 2.5 mm × 0.83 mm), RoHS-compliant, surface-mount land grid array with exposed pad for thermal and mechanical stability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Power supply input | Primary analog/digital supply rail (1.62–3.6 V); requires local 100 nF decoupling. |
| GND | Ground reference | Analog and digital common return; connects to exposed thermal pad for optimal thermal dissipation. |
| SCL / SDA | I²C serial interface | Open-drain bidirectional bus lines; support standard/fast/high-speed modes up to 1 MHz. |
| SDO/SA0 | Slave address select / SPI data output | Configures I²C address (0x18 or 0x19); serves as SPI MISO in 4-wire mode. |
| CS | SPI chip select | Active-low enable for SPI communication; internally pulled up (typ. 20 kΩ). |
| SCL/SDA/CS/SDO pins support level-shifted operation down to 1.2 V logic. | Interface voltage tolerance | Enables direct connection to low-voltage microcontrollers without external level shifters. |
Key Features
| Feature | Design Value |
|---|---|
| On-the-fly mode reconfiguration | Switch between ultra-low-power and high-performance modes in <1 ms without interrupting FIFO or interrupt state. |
| Dedicated motion-detection engine | Hardware-accelerated free-fall, wakeup, tap/double-tap, activity/inactivity, and 6D orientation - offloads host MCU and reduces system latency. |
| Programmable dual interrupts | Two independent interrupt outputs (INT1/INT2) configurable for any combination of motion events, FIFO status, or data-ready signals. |
| Embedded temperature sensor | Monitors die temperature with ±2 °C accuracy over -40 °C to +85 °C - enables thermal drift compensation in precision applications. |
| Self-test capability | Electrostatic actuation verifies MEMS element integrity and signal path functionality at power-on or runtime without mechanical stimulus. |
Applications
| Industrial Vibration Monitoring | Smart Power-Saving Systems |
|---|---|
|
Use Scenario: Continuous monitoring of rotating equipment (pumps, motors) in factory settings for early bearing fault detection. IC Role / Device Role / Timing Role: Primary acceleration data acquisition node with autonomous FIFO buffering and ODR-adaptive sampling. Use Value: 800 Hz bandwidth and 90 μg/√Hz noise enable resolution of sub-millig acceleration harmonics critical for predictive maintenance algorithms. |
Use Scenario: Battery-powered portable tools that enter sleep mode when idle and wake on motion. IC Role / Device Role / Timing Role: System-level wakeup controller using activity/inactivity detection and programmable threshold-based interrupt generation. Use Value: 50 nA power-down current and <1 μA active low-power mode extend battery life to >5 years in typical duty-cycle deployments. |
| Tilt & Inclination Measurement | Impact Recognition & Logging |
|
Use Scenario: Structural health monitoring of bridges or solar panel mounts requiring long-term static angle tracking. IC Role / Device Role / Timing Role: High-stability DC-coupled 3-axis sensor with factory-calibrated offset and temperature-compensated output. Use Value: ±2g full-scale and 90 μg/√Hz noise support <0.1° tilt resolution over full industrial temperature range (-40 °C to +85 °C). |
Use Scenario: Logistics asset trackers logging drop events during shipment to assess handling compliance. IC Role / Device Role / Timing Role: Shock event detector with configurable high-g threshold (up to 10000 g survivability) and timestamped interrupt output. Use Value: Hardware-accelerated free-fall and high-g impact detection triggers logging without host CPU involvement, minimizing missed events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis ultra-low-power accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM6DSOXTR | Integrated 6-axis IMU (3-axis accel + 3-axis gyro); higher current (360 μA HP mode); no embedded temperature sensor. | Requires gyro data fusion (e.g., AHRS); less suitable for pure low-g tilt or long-life battery-only use. | Select when angular rate sensing is required alongside acceleration; avoid if cost, power, or die temperature monitoring are critical. |
| ADXL362ACPZ-RL7 | 3-axis only; SPI-only interface; 200 nA power-down; fixed ±2g/±4g/±8g; no hardware motion engine. | Lacks tap/double-tap, 6D orientation, and FIFO-based autonomous processing; relies on host for all event logic. | Select for ultra-deep-sleep applications where motion intelligence is handled externally; avoid when embedded feature set is needed. |
Compared with LSM6DSOXTR and ADXL362ACPZ-RL7, the IIS2DLPCTR uniquely balances ultra-low power, integrated motion intelligence, and dual-interface flexibility - making it optimal for autonomous, battery-constrained industrial sensing where host processing resources are limited.
Availability
IIS2DLPCTR is available at Aetrix Electronics and suitable for industrial IoT gateways, portable healthcare monitors, and anti-tampering security devices requiring stable component supply, extended temperature operation, and long-term lifecycle support.
Supply support for IIS2DLPCTR 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, power management, and automotive ICs.
The IIS2DLPC product line targets industrial-grade motion sensing with emphasis on ultra-low power, robustness (10000 g shock survivability), and intelligent on-sensor processing - enabling edge autonomy in harsh, resource-constrained environments.
FAQ
What is the maximum shock survivability rating for the IIS2DLPCTR?
The IIS2DLPCTR is rated for 10000 g high-shock survivability, verified per MIL-STD-883H Method 2002.8. This enables reliable operation in applications subject to mechanical impacts such as drop testing, transportation monitoring, and power tool vibration - without permanent calibration shift or functional failure.
Does the IIS2DLPCTR support both I²C and SPI simultaneously?
No - the IIS2DLPCTR uses shared pins (SDO/SA0 and CS) to configure interface mode: I²C when CS is held high and SDO/SA0 sets address; SPI when CS is actively driven low. Only one interface can be active at a time, but mode switching is register-controlled and non-disruptive to ongoing measurements.
How does the embedded temperature sensor improve accelerometer accuracy?
The integrated temperature sensor provides real-time die temperature readings (±2 °C accuracy) used to compensate for thermal drift in zero-g offset and sensitivity. This allows users to apply factory-provided temperature coefficients in firmware, achieving stable performance across -40 °C to +85 °C without external thermal sensors or calibration routines.
Can the IIS2DLPCTR detect double-tap gestures autonomously?
Yes - the device includes a dedicated hardware motion engine that supports highly configurable single and double-tap detection with independent thresholds per axis (TAP_THS_X/Y/Z registers), timing control (INT_DUR), and source identification (TAP_SRC). Detection occurs entirely within the sensor, generating an interrupt without host CPU involvement.
IIS2DLPCTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 12-WFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Digital
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g, 4g, 8g, 16g
- Sensitivity (LSB/g):
- -
- Sensitivity (mV/g):
- -
- Bandwidth:
- 0.8Hz ~ 800Hz
- Output Type:
- I2C, SPI
- Voltage - Supply:
- 1.62V ~ 3.6V
- Features:
- Selectable Scale, Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 12-LGA (2x2)
IIS2DLPCTR FAQ
1.How can I place an order for IIS2DLPCTR through Aetrix?
Please submit a Request for Quotation (RFQ) for IIS2DLPCTR 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 IIS2DLPCTR reliable?
The price and inventory of IIS2DLPCTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for IIS2DLPCTR is usually 5 days.
3.What payment methods are accepted for IIS2DLPCTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for IIS2DLPCTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for IIS2DLPCTR?
IIS2DLPCTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your IIS2DLPCTR 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 IIS2DLPCTR?
For technical support, including IIS2DLPCTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your IIS2DLPCTR requirements.
6.How does Aetrix verify that IIS2DLPCTR is sourced from the original manufacturer or authorized distributors?
All IIS2DLPCTR 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 IIS2DLPCTR meets industry standards.
7.What is the process for return or replacement of IIS2DLPCTR?
All IIS2DLPCTR units undergo pre-shipment inspection (PSI). If there is an issue with IIS2DLPCTR, 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 IIS2DLPCTR part is unused and in its original packaging.
Return procedure for IIS2DLPCTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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