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STMicroelectronics LIS3DSH
- Part No.:
- LIS3DSH
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 16-VFLGA
- Datasheet:
-
LIS3DSH.pdf
- Description:
- ACCEL 2-16G I2C/SPI 16LGA
- Quantity:
- Payment:
- Shipping:
Inventory:4,755
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Product details
Overview
LIS3DSH from STMicroelectronics is an ultra-low-power, high-performance three-axis MEMS digital accelerometer with embedded programmable state machines, ±2g to ±16g dynamically selectable full-scale range, 16-bit output resolution, and I²C/SPI interfaces - deployed in motion-controlled UIs, pedometers, and impact-logging systems for handheld and wearable devices.
For engineers reviewing the LIS3DSH datasheet, LIS3DSH pinout, LIS3DSH application, or LIS3DSH equivalent, key selection criteria include its autonomous state-machine capability, FIFO buffer depth (32-level), embedded self-test, temperature sensor integration, and shock survivability up to 10,000 g - critical for robust portable electronics design.
Technical Context
The LIS3DSH implements a dual-state-machine architecture enabling user-defined motion pattern recognition (e.g., click/double-click, orientation change) without host processor intervention. Its digital signal path includes configurable low-pass filtering, vector-magnitude computation, and threshold-triggered interrupt generation.
It supports four FIFO operating modes (bypass, FIFO, stream, stream-to-FIFO) with programmable watermark levels and auto-increment register addressing. The device uses capacitive sensing elements with factory-calibrated offset and sensitivity, and features independent I/O supply (1.8 V) alongside core supply (1.71–3.6 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 1.71 V to 3.6 V - enables direct integration with Li-ion battery-powered systems and wide-input PMIC outputs. |
| IO Supply | 1.8 V - decouples logic interface voltage from core supply, simplifying level-shifting in mixed-voltage designs. |
| Full-Scale Range | ±2g/±4g/±6g/±8g/±16g - software-selectable per application need; ±2g gives highest resolution (0.061 mg/LSB), ±16g enables shock detection. |
| Output Data Rate | 3.125 Hz to 1.6 kHz - supports low-power always-on monitoring (e.g., tilt detection at 3.125 Hz) and high-speed vibration analysis (up to 1.6 kHz). |
| Data Resolution | 16-bit - provides 65,536 discrete acceleration levels across full scale, enabling sub-millig precision in static orientation sensing. |
| FIFO Depth | 32 samples - reduces host polling frequency and CPU wake-ups, extending battery life in intermittent-sampling applications. |
| Shock Survivability | 10,000 g - ensures mechanical integrity during drop events or industrial handling, critical for consumer and industrial end-equipment reliability. |
Pinout & Package
The LIS3DSH is housed in a 3 mm × 3 mm × 1 mm LGA-16 package with exposed pad for thermal and mechanical stability. Pin assignment follows standard MEMS accelerometer layout with dedicated interrupt outputs, serial interface lines, and supply terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VDD | Core supply input | Connects to 1.71–3.6 V power rail; bypass capacitor required for noise suppression. |
| VDD_IO | I/O supply input | Supplies 1.8 V to SDA/SCL/MOSI/MISO/CS pins; enables interoperability with 1.8 V logic families. |
| GND | Ground reference | Common return for analog and digital sections; must be connected to PCB ground plane under exposed pad. |
| SCL / SCK | I²C clock / SPI clock | Configurable as I²C clock (open-drain, pull-up required) or SPI clock (push-pull); shared pin supports dual-interface flexibility. |
| SDA / MOSI | I²C data / SPI master-out-slave-in | Bidirectional I²C data line or unidirectional SPI data input; internal pull-up enabled in I²C mode. |
| MISO | SPI master-in-slave-out | Open-drain output for SPI read operations; requires external pull-up for proper logic level definition. |
| CS | SPI chip select | Active-low enable for SPI communication; must be held high when using I²C interface. |
| INT1 / INT2 | Programmable interrupt outputs | Dual open-drain outputs configurable for motion events (e.g., FIFO full, click detection, orientation change) - reduce host polling overhead. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded dual state machines | Two independent programmable engines execute user-defined motion algorithms autonomously - eliminates continuous host CPU involvement in gesture recognition. |
| 32-level FIFO buffer | Stores X/Y/Z acceleration samples with configurable trigger thresholds - enables burst-mode acquisition and reduces bus traffic by >70% in pedometer logging. |
| Integrated temperature sensor | Monitors die temperature with ±5 °C accuracy over –40 to +85 °C - supports real-time sensitivity compensation in precision orientation applications. |
| Self-test function | Electrostatic actuation verifies MEMS element and signal chain integrity in-system - validates sensor functionality post-assembly without external stimulus. |
| High shock survivability | Rated for 10,000 g mechanical shock - ensures operational continuity after accidental drops or mechanical stress in portable medical and industrial devices. |
Applications
| Display Orientation | Pedometer |
|---|---|
Use Scenario: Smartphone or tablet automatically rotates UI between portrait and landscape based on device tilt. IC Role / Device Role / Timing Role: Accelerometer measures static gravity vector to determine pitch and roll angles; updates at 10–50 Hz for smooth transition. Use Value: Enables seamless UX without manual rotation lock; low 3.125 Hz ODR mode extends battery life during idle orientation hold. |
Use Scenario: Wearable fitness tracker counts steps during walking or running activity. IC Role / Device Role / Timing Role: Detects vertical acceleration peaks above 0.3 g with 100 Hz ODR; uses embedded state machine to reject false triggers from arm swing. Use Value: Reduces false step count by >90% versus basic thresholding; FIFO stores 32 samples for offline gait analysis without host intervention. |
| Click/Double-Click Recognition | Vibration Monitoring |
Use Scenario: Smart remote control executes menu navigation or volume adjustment via tap gestures. IC Role / Device Role / Timing Role: State machine detects transient acceleration spikes (≥2 g, <100 ms duration) and validates timing between successive taps. Use Value: Eliminates mechanical buttons and associated wear/failure; operates reliably at 1.8 V IO supply with no external timing components. |
Use Scenario: Predictive maintenance sensor on HVAC blower motor logs vibration spectra to detect bearing degradation. IC Role / Device Role / Timing Role: Captures 1.6 kHz sampled acceleration data in stream-to-FIFO mode; triggers interrupt on RMS amplitude exceeding 0.5 g threshold. Use Value: Enables edge-based anomaly detection without streaming raw data to cloud; 10,000 g rating ensures survival during motor startup surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar three-axis MEMS accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LSM6DSOX | Higher ODR (6.6 kHz), integrated gyroscope, lower current (0.65 mA vs 0.9 mA at 100 Hz), but no embedded state machines. | Targeted at IMU fusion and AR/VR tracking; lacks autonomous motion pattern logic of LIS3DSH. | Select LSM6DSOX when angular rate sensing is required; retain LIS3DSH for pure low-power, event-driven acceleration tasks. |
| ADXL345 | Fixed ±2g/±4g/±8g/±16g ranges, no embedded state machine, 13-bit resolution, no FIFO watermark interrupt. | Used in legacy industrial monitors; requires host CPU for all motion logic and sample buffering. | Choose ADXL345 only for cost-sensitive, non-autonomous applications where firmware resources are abundant. |
Compared with LSM6DSOX and ADXL345, the LIS3DSH uniquely balances ultra-low-power operation (sub-1 mA active current), autonomous state-machine execution, and robust shock tolerance - making it optimal for battery-constrained, event-triggered motion sensing where host processing is minimized.
Availability
LIS3DSH is available at Aetrix Electronics and suitable for motion-controlled user interfaces, wearable pedometers, and industrial impact-logging systems requiring stable component supply across long-lifecycle consumer and industrial programs.
Supply support for LIS3DSH 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 automotive-grade components since 1987.
The LIS3DSH belongs to ST's "nano" family of ultra-low-power MEMS motion sensors, engineered specifically for intelligent, battery-operated portable devices needing autonomous motion awareness without host CPU overhead.
FAQ
What is the maximum output data rate supported by the LIS3DSH?
The LIS3DSH supports an output data rate range from 3.125 Hz to 1.6 kHz, selectable via CTRL_REG4 register. At 1.6 kHz, it delivers full 16-bit X/Y/Z samples continuously, enabling high-fidelity vibration analysis. Lower rates like 3.125 Hz or 6.25 Hz are optimized for ultra-low-power orientation hold or tilt sensing in battery-powered devices.
Does the LIS3DSH require external components for basic operation?
Yes - a 100 nF ceramic bypass capacitor is required on both VDD and VDD_IO pins, and pull-up resistors (typically 4.7 kΩ) are needed on SCL/SDA for I²C mode or on MISO for SPI mode. The exposed thermal pad must be soldered to a PCB ground plane for mechanical stability and thermal dissipation.
How does the embedded self-test function work?
The LIS3DSH's self-test applies electrostatic force to the MEMS proof mass via internal electrodes, inducing a known displacement. This generates a measurable output shift (typically ±150 mg on each axis), verifiable through register reads - confirming sensor element integrity and analog front-end functionality without external equipment.
Can the LIS3DSH operate with a 3.3 V I/O supply?
No - the VDD_IO pin is strictly rated for 1.8 V ±0.1 V, as specified in Section 3.4 (Absolute Maximum Ratings) and Table 4 (Electrical Characteristics). Using 3.3 V on VDD_IO risks permanent damage. Level-shifting circuitry is required when interfacing with 3.3 V microcontrollers.
LIS3DSH Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 16-VFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Digital
- Axis:
- X, Y, Z
- Acceleration Range:
- ±2g, 4g, 6g, 8g, 16g
- Sensitivity (LSB/g):
- 16666 (±2g) ~ 1369 (±16g)
- Sensitivity (mV/g):
- -
- Bandwidth:
- 1.56Hz ~ 800Hz
- Output Type:
- I2C, SPI
- Voltage - Supply:
- 1.71V ~ 3.6V
- Features:
- Adjustable Bandwidth, Selectable Scale, Temperature Sensor
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-LGA (3x3)
LIS3DSH FAQ
1.How can I place an order for LIS3DSH through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS3DSH 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 LIS3DSH reliable?
The price and inventory of LIS3DSH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS3DSH is usually 5 days.
3.What payment methods are accepted for LIS3DSH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS3DSH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS3DSH?
LIS3DSH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS3DSH 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 LIS3DSH?
For technical support, including LIS3DSH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS3DSH requirements.
6.How does Aetrix verify that LIS3DSH is sourced from the original manufacturer or authorized distributors?
All LIS3DSH 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 LIS3DSH meets industry standards.
7.What is the process for return or replacement of LIS3DSH?
All LIS3DSH units undergo pre-shipment inspection (PSI). If there is an issue with LIS3DSH, 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 LIS3DSH part is unused and in its original packaging.
Return procedure for LIS3DSH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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