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STMicroelectronics LIS202DLTR
- Part No.:
- LIS202DLTR
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 14-VFLGA
- Datasheet:
-
LIS202DLTR.pdf
- Description:
- ACCEL 2.3-9.2G I2C/SPI 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:3,411
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Product details
Overview
LIS202DLTR from STMicroelectronics is a 2-axis MEMS digital accelerometer in the "piccolo" family, designed for motion sensing in space-constrained embedded systems. It delivers ±2g/±8g dynamically selectable full-scale range, I²C/SPI digital output, programmable interrupt generation, and click/double-click recognition - all within a 3×5×0.9 mm TLGA-14 package operating from -40°C to +85°C.
For engineers reviewing the LIS202DLTR datasheet, LIS202DLTR pinout, LIS202DLTR application, or LIS202DLTR equivalent, key selection criteria include dual full-scale configurability, <1 mW active power consumption (0.4 mA @ 100 Hz), embedded high-pass filtering, self-test capability, and inertial wake-up interrupt support with per-axis threshold programming.
Technical Context
The LIS202DLTR integrates a silicon micromachined sensing element with a CMOS interface IC trimmed to match sensor characteristics. Its dual-axis architecture supports independent X/Y acceleration measurement with factory-calibrated offset and sensitivity, enabling reliable motion detection without external compensation.
It implements configurable digital interfaces: SPI (3- or 4-wire) and I²C (standard/fast-mode), both supporting register-level access to control, status, and output data registers (e.g., OUT_X at 29h, OUT_Y at 2Bh). Interrupt logic includes two dedicated outputs (INT1/INT2) driven by programmable wake-up thresholds (WU_THS_1/2) and timing windows (WU_DURATION_1/2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.16 V to 3.6 V - powers analog front-end and digital core; supports single-supply system integration. |
| I/O Voltage Compatibility | 1.8 V - enables direct interfacing with low-voltage microcontrollers without level shifters. |
| Full-Scale Range | ±2g / ±8g (dynamically selectable via FS bit) - allows trade-off between resolution (18 mg/digit @ ±2g) and range for varying motion profiles. |
| Output Data Rate | 100 Hz or 400 Hz - determines temporal resolution for real-time gesture or vibration analysis. |
| Power Consumption | 0.4 mA @ 100 Hz normal mode; 5 µA in power-down - enables battery-powered operation for months in duty-cycled applications. |
| Shock Survivability | 10000g - ensures robustness against mechanical stress during handling or deployment. |
| Operating Temperature | -40°C to +85°C - validated for industrial and automotive cabin environments without derating. |
Pinout & Package
Package: Thin Land Grid Array (TLGA), 14-terminal, 3.0 × 5.0 × 0.9 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vdd_IO | Independent I/O supply rail - decouples digital interface voltage from core sensor supply (Vdd), enabling mixed-voltage system design. |
| 2, 4, 5, 10 | GND | Dedicated ground terminals - reduce noise coupling and improve signal integrity for analog sensing path. |
| 3, 11 | Reserved | Internally connected; must be tied to Vdd (pin 3) or GND (pin 11) per datasheet - prevents floating nodes that could induce latch-up. |
| 6 | Vdd | Main analog/digital core supply - powers MEMS element, charge amplifier, ADC, and control logic. |
| 7 | CS | SPI enable / I²C mode select - low = SPI active; high = I²C mode - simplifies interface selection without external logic. |
| 8, 9 | INT1, INT2 | Open-drain inertial interrupt outputs - drive external MCU GPIOs for low-latency wake-up on motion events (e.g., tap, free-fall). |
| 12 | SDO | SPI serial data output / I²C device address LSB - enables daisy-chaining in SPI or unique addressing in I²C bus configurations. |
| 13 | SDA/SDI/SDO | Multi-function pin: I²C data (SDA), SPI input (SDI), or 3-wire SPI output (SDO) - maximizes flexibility in PCB layout and protocol choice. |
| 14 | SCL/SPC | Shared clock line: I²C SCL or SPI SPC - reduces pin count while maintaining synchronous communication integrity. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable interrupt generator | Two independent interrupt sources (INT1/INT2) with user-defined thresholds, duration, and axis selection - eliminates host polling and reduces MCU wake cycles. |
| Click and double-click recognition | Dedicated hardware state machine detects tap/double-tap events with configurable latency and debounce - enables intuitive UI interaction without firmware overhead. |
| Embedded high-pass filter | Configurable cut-off frequency removes static tilt offset from dynamic motion signals - essential for activity classification and gesture discrimination. |
| Self-test capability | Electrostatic actuation verifies MEMS element and signal chain integrity at power-on or runtime - satisfies functional safety checks in certified designs. |
| 10000g shock survivability | Validated mechanical robustness ensures continued operation after board-level drop testing or mechanical shock exposure - critical for portable and wearable devices. |
Applications
| Smartphone Motion Activation | Gaming Controller Input |
|---|---|
Use Scenario: Detecting screen rotation, shake-to-undo, or lift-to-wake gestures in handheld consumer electronics. IC Role / Device Role / Timing Role: Primary 2-axis motion sensor providing real-time acceleration data at 100–400 Hz for gesture engine processing. Use Value: Low-power operation (<0.4 mA) extends battery life; embedded click recognition offloads gesture detection from the main processor. |
Use Scenario: Translating physical tilting, shaking, or button-free input into game actions in wireless controllers. IC Role / Device Role / Timing Role: Inertial input transducer delivering sub-10 ms latency motion feedback via I²C to the controller MCU. Use Value: ±8g full-scale supports aggressive motion without saturation; 10000g shock rating withstands repeated impact during gameplay. |
| Vibration Monitoring System | Industrial Equipment Tilt Sensing |
Use Scenario: Capturing low-amplitude, high-frequency vibrations (e.g., motor bearing wear) in predictive maintenance sensors. IC Role / Device Role / Timing Role: High-bandwidth (up to 200 Hz system BW) analog front-end digitized at 400 Hz ODR for spectral analysis. Use Value: Factory-trimmed sensitivity (±2.3g FS typ.) and <0.5 mg/°C zero-g drift ensure stable baseline across temperature swings in uncontrolled environments. |
Use Scenario: Measuring inclination angle of solar trackers, construction equipment, or agricultural machinery relative to gravity. IC Role / Device Role / Timing Role: Static acceleration reference sensor using ±2g full-scale and embedded high-pass filter to reject transient shocks. Use Value: ±40 mg zero-g offset accuracy enables <0.25° tilt resolution; -40°C to +85°C operation guarantees reliability in outdoor deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 2-axis digital accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM303DLHC | 3-axis accelerometer + 3-axis magnetometer combo; higher current (0.8 mA @ 100 Hz); larger LGA-16 package (5×5×1.05 mm) | Enables e-compass functionality but lacks dedicated click/double-click logic and has no self-test flag in STATUS_REG | Select when heading estimation or fused orientation is required; avoid if size or ultra-low-power motion-triggered wake-up is primary. |
| ADXL345 | 3-axis, SPI/I²C, ±2g/±4g/±8g/±16g full-scale; 13-bit resolution; no built-in high-pass filter or click detection | Higher resolution and broader range suit precision inclinometry, but requires external filtering and firmware-based tap detection | Choose for applications needing >10-bit resolution or multi-g range flexibility; not optimal for low-latency tap response or minimal firmware footprint. |
Compared with LSM303DLHC and ADXL345, the LIS202DLTR offers the smallest footprint (3×5 mm), lowest active power (0.4 mA), and hardware-accelerated motion primitives (click, wake-up) - making it optimal for size- and battery-constrained 2-axis motion activation where 3-axis or compass fusion is unnecessary.
Availability
LIS202DLTR is available at Aetrix Electronics and suitable for smartphone motion activation, gaming controller input, vibration monitoring systems, and industrial equipment tilt sensing requiring stable component supply and long-term manufacturability planning.
Supply support for LIS202DLTR 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, power management, microcontrollers, and automotive ICs.
The LIS202DLTR belongs to ST's "piccolo" family of ultra-compact motion sensors, engineered specifically for space-constrained, low-power portable and industrial motion-sensing applications demanding high shock resilience and integrated intelligence.
FAQ
What communication protocols does the LIS202DLTR support?
The LIS202DLTR supports both I²C (standard and fast mode) and SPI (3- or 4-wire) interfaces. Mode selection is controlled by the CS pin: high for I²C, low for SPI. All register access-including configuration (CTRL_REG1), interrupt setup (WU_CFG_1), and data read (OUT_X/OUT_Y)-is performed through these serial buses without requiring parallel connections.
How is full-scale range selected, and what impact does it have on resolution?
Full-scale range (±2g or ±8g) is selected dynamically via the FS bit in CTRL_REG1 (20h). At ±2g, sensitivity is 18 mg/digit (typ.), yielding ~112 LSB/g; at ±8g, it drops to 72 mg/digit (~13.9 LSB/g). This trade-off allows optimization for either high-resolution motion detection (e.g., subtle tilt) or wide-range shock/vibration capture without saturating the ADC.
Does the LIS202DLTR include built-in self-test, and how is it activated?
Yes - the LIS202DLTR features electrostatic self-test activated by setting the ST bit in CTRL_REG1. When enabled, it applies an internal force to the MEMS structure, producing a known output shift (e.g., ±32 LSB on Y-axis at ±2g). The resulting change in OUT_X/OUT_Y registers confirms sensor and signal chain functionality without external stimulus.
What is the function of the embedded high-pass filter, and how is it configured?
The embedded high-pass filter removes DC offset (e.g., gravity component) from acceleration data to isolate dynamic motion. It is enabled via the HPen bit in CTRL_REG2 (21h), with cutoff frequency determined by output data rate (ODR). For example, at 100 Hz ODR, the filter cut-off is ~1.5 Hz - sufficient to suppress tilt while preserving gesture-relevant bandwidth.
LIS202DLTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-VFLGA
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Digital
- Axis:
- X, Y
- Acceleration Range:
- ±2.3g, 9.2g
- Sensitivity (LSB/g):
- 55 (±2.3g) ~ 13 (±9.2g)
- Sensitivity (mV/g):
- -
- Bandwidth:
- 50Hz ~ 200Hz
- Output Type:
- I2C, SPI
- Voltage - Supply:
- 2.16V ~ 3.6V
- Features:
- Adjustable Bandwidth, Selectable Scale
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-LGA (3x5)
LIS202DLTR FAQ
1.How can I place an order for LIS202DLTR through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS202DLTR 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 LIS202DLTR reliable?
The price and inventory of LIS202DLTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS202DLTR is usually 5 days.
3.What payment methods are accepted for LIS202DLTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS202DLTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS202DLTR?
LIS202DLTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS202DLTR 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 LIS202DLTR?
For technical support, including LIS202DLTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS202DLTR requirements.
6.How does Aetrix verify that LIS202DLTR is sourced from the original manufacturer or authorized distributors?
All LIS202DLTR 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 LIS202DLTR meets industry standards.
7.What is the process for return or replacement of LIS202DLTR?
All LIS202DLTR units undergo pre-shipment inspection (PSI). If there is an issue with LIS202DLTR, 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 LIS202DLTR part is unused and in its original packaging.
Return procedure for LIS202DLTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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