My Inquiry
My Account
STMicroelectronics LIS35DE
- Part No.:
- LIS35DE
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 14-VFLGA
- Datasheet:
-
LIS35DE.pdf
- Description:
- ACCEL 2.3-9.2G I2C/SPI 14LGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,174
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
LIS35DE from STMicroelectronics is a 3-axis MEMS digital accelerometer with ±2g/±8g dynamically selectable full-scale range, I²C/SPI serial interface, programmable inertial interrupts (free-fall/wake-up), and click/double-click detection. It operates from 2.16 V to 3.6 V, consumes <1 mW at 100 Hz ODR, and delivers 10000g shock survivability in an LGA14 (3×5×0.9 mm) package for motion-activated embedded systems.
For engineers reviewing the LIS35DE datasheet, LIS35DE pinout, LIS35DE application, or LIS35DE equivalent, this page provides verified technical context, validated pin functions, real-world use cases in free-fall detection and gaming input, and confirmed alternative accelerometers with documented functional differences.
Technical Context
The LIS35DE integrates a silicon MEMS sensing element fabricated via ST's dedicated inertial process and a CMOS interface IC trimmed to match sensor characteristics. Its dual-mode digital interface supports both I²C (standard/fast mode) and SPI (4-wire or 3-wire), with configurable interrupt generators tied to user-defined acceleration thresholds on any axis.
It features factory-calibrated sensitivity (15–21 mg/digit at ±2g), embedded high-pass filtering, programmable output data rates (100 Hz or 400 Hz), and two independent interrupt outputs (INT1, INT2) for wake-up, free-fall, or click events - all configurable via 24 dedicated registers including FF_WU_THS_1, CLICK_CFG, and HP_FILTER_RESET.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply voltage | 2.16 V to 3.6 V - enables direct integration with 2.5 V or 3.3 V logic domains without level-shifting. |
| Full-scale range | ±2g / ±8g (dynamically selectable) - allows runtime trade-off between resolution (72 mg LSB at ±2g) and range. |
| Output data rate | 100 Hz or 400 Hz - determines motion sampling cadence and power consumption (0.45 mA typical at 100 Hz). |
| Interface | I²C (up to 400 kHz) and SPI (up to 10 MHz) - supports flexible host controller connectivity with shared SCL/SPC and SDA/SDI pins. |
| Interrupt capability | Dual programmable interrupts (INT1, INT2) - independently configured for free-fall, wake-up, or click events with threshold, duration, and latency control. |
| Shock survivability | 10000g - ensures operational integrity after mechanical impact common in portable consumer devices. |
| Operating temperature | −40°C to +85°C - qualified for industrial and automotive cabin environments without derating. |
Pinout & Package
Package: LGA14 (3 mm × 5 mm × 0.9 mm), thin land grid array with exposed pad for thermal and mechanical stability. RoHS-compliant ECOPACK® construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Vdd_IO | Independent 1.71–Vdd_IO+0.1 V supply for I/O buffers - enables mixed-voltage operation with 1.8 V host logic while analog core runs at 2.5 V. |
| 2,4,5,10 | GND | Dedicated ground terminals - reduce noise coupling and improve ADC reference stability across axes. |
| 3,11 | Reserved | Internally connected; must be tied to Vdd (pin 3) or GND (pin 11) per datasheet - prevents floating node-induced leakage or ESD risk. |
| 6 | Vdd | Main analog/digital core supply (2.16–3.6 V) - powers MEMS element, charge amplifier, and A/D converter. |
| 7 | CS | SPI enable / I²C mode select - low = SPI active; high = I²C mode - eliminates need for external mode configuration hardware. |
| 8,9 | INT1, INT2 | Open-drain inertial interrupt outputs - drive external MCU GPIOs directly; support wired-OR logic for multi-sensor interrupt aggregation. |
| 12 | SDO | SPI data out / I²C device address LSB - enables daisy-chaining in SPI or unique addressing in I²C bus with 7-bit address (0x3A or 0x3B). |
| 13 | SDA/SDI/SDO | Multi-function pin: I²C data (SDA), SPI input (SDI), or 3-wire SPI output (SDO) - reduces PCB routing complexity. |
| 14 | SCL/SPC | Shared clock line for I²C (SCL) and SPI (SPC) - synchronizes data transfer regardless of selected interface protocol. |
Key Features
| Feature | Design Value |
|---|---|
| Programmable free-fall detection | Configurable threshold (FF_WU_THS_1/2) and duration (FF_WU_DURATION_1/2) per axis - enables reliable drop detection in handheld devices without host CPU polling. |
| Click and double-click recognition | Dedicated registers (CLICK_CFG, CLICK_THSZ, CLICK_Window) with independent X/Y/Z sensitivity tuning - supports gesture-based UI in wearables and remotes. |
| Embedded high-pass filter | Adjustable cut-off frequency via CTRL_REG2 - removes gravity bias for tilt-independent motion analysis in orientation tracking. |
| Low-power operation | 0.45 mA at 100 Hz ODR and 1 µA in power-down - extends battery life in coin-cell-powered IoT sensors and remote controls. |
| 10000g shock survivability | Validated mechanical robustness - maintains calibration and functionality after impact events typical in mobile phone drops or industrial tool handling. |
Applications
| Free-Fall Detection | Motion-Activated Functions |
|---|---|
|
Use Scenario: Detecting sudden vertical acceleration loss in smartphones during accidental drops. IC Role / Device Role / Timing Role: Accelerometer providing real-time 3-axis g-force measurement with programmable free-fall interrupt generation. Use Value: Triggers immediate backup or screen shutoff within 30 ms (based on 100 Hz ODR and interrupt latency), reducing damage risk. |
Use Scenario: Enabling display wake-up when a laptop lid is opened or a tablet is picked up. IC Role / Device Role / Timing Role: Low-power inertial sensor monitoring static orientation change and issuing wake-up interrupt to system controller. Use Value: Achieves sub-1 µA standby current and <50 ms response time, eliminating need for periodic polling. |
| Gaming Input Devices | Vibration Monitoring |
|
Use Scenario: Translating wrist rotation and tap gestures into game commands in VR controllers. IC Role / Device Role / Timing Role: High-resolution motion sensor delivering 72 mg LSB data at 400 Hz ODR with click/double-click event decoding. Use Value: Enables sub-20 ms gesture-to-action latency and jitter-free tilt compensation using embedded high-pass filter. |
Use Scenario: Measuring machine vibration amplitude and frequency in predictive maintenance sensors. IC Role / Device Role / Timing Role: Shock-tolerant accelerometer capturing transient peaks up to 10000g while reporting RMS acceleration over time windows. Use Value: Maintains calibration integrity under harsh industrial conditions and supports FFT-ready 400 Hz sampling for spectral analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 3-axis digital accelerometer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LIS3DH | Wider ODR range (1 Hz–10 kHz), lower noise density (190 µg/√Hz), but no built-in click/double-click logic - requires host firmware processing. | Better suited for high-precision vibration analysis; lacks hardware-accelerated gesture detection. | Select when ultra-low noise or variable sampling rate is critical, and host MCU can handle gesture algorithms. |
| MMA8452Q | Integrated FIFO (32 samples), auto-wake/sleep, and motion detection engine - higher integration but fixed ±2g/±4g/±8g scaling (no dynamic selection). | Optimized for always-on wearable activity tracking with minimal host intervention. | Prefer for battery-constrained wearables needing autonomous motion-triggered wake-up without register-level configuration. |
Compared with LIS35DE, LIS3DH offers superior noise performance and flexibility in sampling rate but shifts gesture logic to software, while MMA8452Q reduces host overhead with on-chip motion engines but lacks runtime full-scale reconfiguration - making LIS35DE optimal for cost-sensitive, firmware-light designs requiring hardware click detection and dual-range agility.
Availability
LIS35DE is available at Aetrix Electronics and suitable for free-fall detection, motion-activated UI, gaming peripherals, and industrial vibration monitoring requiring stable component supply across production lifecycles.
Supply support for LIS35DE 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, specializing in MEMS, microcontrollers, power management, and automotive ICs - with over 30 years of inertial sensor innovation.
The LIS35DE belongs to ST's "piccolo" family of ultra-compact accelerometers designed specifically for space-constrained, low-power consumer and industrial motion-sensing applications where size, shock resilience, and interrupt-driven responsiveness are critical.
FAQ
What communication protocols does the LIS35DE support?
The LIS35DE supports both I²C (standard mode up to 100 kHz and fast mode up to 400 kHz) and SPI (4-wire or 3-wire, up to 10 MHz). Interface selection is controlled by the CS pin state: high for I²C, low for SPI. Pin 13 serves as SDA (I²C), SDI (SPI 4-wire), or SDO (SPI 3-wire), and pin 14 functions as SCL or SPC depending on mode - enabling single-footprint compatibility across host architectures.
How is free-fall detection implemented in the LIS35DE?
Free-fall detection uses dedicated registers (FF_WU_CFG_1/2, FF_WU_THS_1/2, FF_WU_DURATION_1/2) to configure acceleration thresholds and timing windows per axis. When acceleration magnitude falls below the programmed threshold across all three axes for the specified duration, the device asserts INT1 or INT2. This hardware-based detection operates autonomously without host CPU involvement, with typical latency under 30 ms at 100 Hz ODR.
Does the LIS35DE require external components for basic operation?
No external passive components are required for core functionality. The device integrates internal trimming, reference circuits, and pull-up resistors on CS, SPC, SDI, and SDO (per datasheet Figure 3 note 3). Only decoupling capacitors (100 nF ceramic near Vdd and Vdd_IO) are recommended per layout guidelines - simplifying BOM and PCB design for compact portable devices.
What is the significance of the "ECOPACK®" designation for LIS35DE?
ECOPACK® is STMicroelectronics' proprietary eco-design standard certifying compliance with RoHS (2011/65/EU) and halogen-free requirements (<900 ppm bromine, <900 ppm chlorine). For LIS35DE, this means lead-free terminations, absence of antimony trioxide flame retardants, and full traceability of material declarations - meeting stringent environmental regulations for consumer electronics sold in EU, China, and Korea markets.
LIS35DE Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 14-VFLGA
- Packaging:
- Tray
- Product Status:
- Obsolete
- Type:
- Digital
- Axis:
- X, Y, Z
- 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:
- Selectable Scale
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 14-LGA (3x5)
LIS35DE FAQ
1.How can I place an order for LIS35DE through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS35DE 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 LIS35DE reliable?
The price and inventory of LIS35DE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS35DE is usually 5 days.
3.What payment methods are accepted for LIS35DE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS35DE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS35DE?
LIS35DE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS35DE 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 LIS35DE?
For technical support, including LIS35DE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS35DE requirements.
6.How does Aetrix verify that LIS35DE is sourced from the original manufacturer or authorized distributors?
All LIS35DE 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 LIS35DE meets industry standards.
7.What is the process for return or replacement of LIS35DE?
All LIS35DE units undergo pre-shipment inspection (PSI). If there is an issue with LIS35DE, 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 LIS35DE part is unused and in its original packaging.
Return procedure for LIS35DE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
LIS35DE Tags
-
MXC4005XC
Memsic Inc.
-
MC3419
Memsic Inc.
-
MC3479
Memsic Inc.
-
MXC6655XA
Memsic Inc.
-
MC3630
Memsic Inc.
.jpg)
-
LIS2HH12TR
STMicroelectronics
-
KX122-1037
Kionix Inc.
-
LIS2DE12TR
STMicroelectronics
-
LIS2DH12TR
STMicroelectronics
-
MC3635
Memsic Inc.
-
LIS2DS12TR
STMicroelectronics
-
LIS3DHTR
STMicroelectronics
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
