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STMicroelectronics LIS33DE
- Part No.:
- LIS33DE
- Manufacturer:
- STMicroelectronics
- Category:
- Accelerometers
- Package:
- 16-VFLGA
- Datasheet:
-
LIS33DE.pdf
- Description:
- ACCEL 2.3-9.2G I2C/SPI 16LGA
- Quantity:
- Payment:
- Shipping:
Inventory:1,723
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Product details
Overview
LIS33DE from STMicroelectronics is an ultra-compact, low-power 3-axis MEMS digital accelerometer with dynamically selectable ±2g/±8g full-scale range, I²C/SPI serial interface, programmable inertial interrupt generator, and embedded self-test. It delivers 100 Hz or 400 Hz output data rate, operates from 2.16 V to 3.6 V, and is qualified for -40°C to +85°C industrial temperature range - used in mobile phone portrait/landscape rotation, motion-triggered wake-up, and gaming interfaces.
For engineers reviewing the LIS33DE datasheet, LIS33DE pinout, LIS33DE application, or LIS33DE equivalent, this page provides verified technical context, validated pin functions, real-world use scenarios, confirmed alternative parts with functional trade-offs, and supply-chain support details specific to OEM and embedded design workflows.
Technical Context
The LIS33DE integrates a surface-micromachined capacitive sensing element fabricated via ST's proprietary MEMS process and a CMOS IC interface with factory-trimmed sensitivity (±2g: 15–21 mg/digit; ±8g: 61–83 mg/digit) and zero-g offset (±60 mg at ±2g). Its analog front-end includes a low-noise charge amplifier and 8-bit A/D converter.
It supports dual-mode digital communication: I²C Fast Mode (up to 400 kHz) with internal pull-ups on SCL/SDA, and SPI (up to 10 MHz) in 3-wire or 4-wire configuration, selected via CS pin logic level. Interrupt generation (INT) is fully programmable per axis for free-fall, wake-up, and threshold-crossing events using registers FF_WU_CFG, FF_WU_THS, and FF_WU_DURATION.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Supply Voltage | 2.16 V to 3.6 V - enables direct integration with 2.5 V/3.3 V microcontroller I/O domains without level-shifting. |
| Full-Scale Range | ±2 g / ±8 g (user-selectable via FS bit) - allows optimization between resolution (72 mg LSB at ±2g) and dynamic range for varying motion profiles. |
| Output Data Rate | 100 Hz or 400 Hz - determines temporal resolution for gesture detection and wake-up latency; bandwidth = ODR/2. |
| Power Consumption | 0.45 mA active (100 Hz), 5 µA power-down - supports battery-powered devices requiring >1-year operation on coin-cell sources. |
| Shock Survivability | 10,000 g for 0.1 ms - ensures robustness during drop testing and mechanical handling in consumer assembly lines. |
| Operating Temperature | -40°C to +85°C - meets industrial-grade environmental requirements for handheld and automotive accessory applications. |
| I/O Compatibility | 1.8 V tolerant I/Os (Vdd_IO) - permits interoperability with low-voltage logic while core sensor runs at higher Vdd. |
Pinout & Package
Package: LGA-16 (3 mm × 3 mm × 1 mm, Thin Land Grid Array), RoHS-compliant ECOPACK®.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 Vdd_IO | I/O Power Supply | Supplies voltage to digital interface pins; decoupled separately from Vdd to isolate noise-sensitive I/O from analog core. |
| 4 SCL/SPC | Serial Clock Input | Shared pin for I²C clock (SCL) or SPI clock (SPC); logic level defines active interface mode when combined with CS state. |
| 5 GND | Ground Reference | Dedicated ground terminal for analog and digital return paths; multiple GND pins (5, 12, 13, 16) reduce impedance and improve noise immunity. |
| 6 SDA/SDI/SDO | Bidirectional Data I/O | Tri-function pin: I²C data (SDA), SPI input (SDI), or SPI output (SDO) - direction controlled by CS and internal state machine. |
| 7 SDO | SPI Output Only | Exclusive SPI data output in 4-wire mode; also carries LSB of I²C device address - requires external pull-up for open-drain behavior. |
| 8 CS | Interface Mode Select | High = I²C mode (SCL/SDA active); Low = SPI mode (SPC/SDI/SDO active); critical for hardware-configurable bus selection. |
| 11 INT | Programmable Interrupt Output | Open-drain inertial event flag (free-fall, wake-up, threshold crossing); driven low on configurable condition - simplifies host polling. |
| 14 Vdd | Analog Core Supply | Primary power for MEMS sensing element and signal chain; must be present with Vdd_IO for full functionality. |
Key Features
| Feature | Design Value |
|---|---|
| Embedded Self-Test | Electrostatic actuation verifies MEMS integrity and signal chain functionality without physical motion - reduces field failure diagnostics time. |
| Dynamically Selectable Full-Scale | Runtime reconfiguration of ±2g/±8g range via CTRL_REG1 FS bit - enables adaptive sensitivity for diverse motion profiles in single firmware build. |
| Programmable Interrupt Generator | Per-axis threshold, duration, and event type (free-fall/wake-up) configured via FF_WU_CFG/THS/DURATION registers - eliminates host CPU polling overhead. |
| Factory-Calibrated Offset & Sensitivity | Trim values stored in non-volatile memory and auto-loaded at power-on - removes need for system-level calibration in volume production. |
| 1.8 V I/O Compatibility | Vdd_IO supports 1.71 V to Vdd_IO+0.1 V - allows direct connection to 1.8 V microcontrollers without external level shifters. |
Applications
| Mobile Portrait/Landscape Detection | Motion-Activated UI |
|---|---|
|
Use Scenario: Automatic screen orientation switching in smartphones and PDAs based on gravity vector tilt. IC Role / Device Role / Timing Role: 3-axis DC acceleration measurement with 100 Hz ODR and ±2g range to resolve static tilt angles within ±0.5° accuracy. Use Value: Enables seamless UI rotation without mechanical switches; low 0.45 mA active current extends battery life during frequent orientation checks. |
Use Scenario: Wake-on-motion for wearable fitness trackers and remote controls to conserve standby power. IC Role / Device Role / Timing Role: Inertial wake-up interrupt triggered by ≥100 mg acceleration on any axis for ≥10 ms - configured via FF_WU_THS and FF_WU_DURATION. Use Value: Reduces system standby current to 5 µA; eliminates need for always-on MCU polling and accelerates response to user gesture. |
| Gaming Motion Control | Drop Detection & Shock Monitoring |
|
Use Scenario: Real-time tilt and tap input for handheld gaming consoles and AR controllers. IC Role / Device Role / Timing Role: High-speed 400 Hz ODR mode with ±8g range captures rapid hand movements and impact transients for gesture recognition. Use Value: Supports sub-2.5 ms motion latency; embedded interrupt (INT) signals tap events directly to game engine, bypassing software filtering delays. |
Use Scenario: Detecting mechanical shock events in portable medical devices and industrial handhelds to log impact severity. IC Role / Device Role / Timing Role: 10,000 g survivability rating and self-test capability validate sensor integrity after high-G exposure. Use Value: Enables post-drop diagnostic confidence; factory-trimmed zero-g offset ensures repeatable baseline measurements before/after shock events. |
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 (200 µg/√Hz), integrated FIFO, but larger 3×3×0.9 mm LGA-16 package and no 1.8 V I/O tolerance. | Better suited for high-precision activity monitoring; requires level-shifting for 1.8 V hosts. | Select LIS3DH when extended bandwidth, FIFO buffering, or lower noise floor is required - not for strict 1.8 V I/O compatibility. |
| FXLS8471Q | Same ±2g/±8g range and I²C/SPI interface, but includes built-in high-pass filter and motion detection engine; consumes 0.5 µA in ultra-low-power mode. | Optimized for always-on motion wake-up with minimal host intervention; lacks self-test verification capability. | Choose FXLS8471Q for systems needing autonomous motion detection logic - avoid if embedded self-test validation is mandatory. |
Compared with LIS33DE, LIS3DH offers superior noise performance and flexibility at the cost of I/O voltage compatibility, while FXLS8471Q delivers lower standby power and on-chip motion logic but omits self-test - making LIS33DE optimal for cost-sensitive, 1.8 V–compatible designs requiring field-verifiable MEMS integrity.
Availability
LIS33DE is available at Aetrix Electronics and suitable for mobile phone orientation control, motion-triggered wake-up systems, gaming interface modules, and industrial handheld shock monitoring requiring stable component supply across multi-year production cycles.
Supply support for LIS33DE 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 analog components for industrial, automotive, and consumer markets.
The LIS33DE belongs to ST's "nano" family of ultra-low-power MEMS motion sensors, engineered specifically for space-constrained, battery-operated portable electronics where minimal footprint, sub-milliwatt power, and robust digital interfacing are essential.
FAQ
What is the minimum supply voltage required for reliable LIS33DE operation?
The LIS33DE operates reliably from 2.16 V to 3.6 V on Vdd. Below 2.16 V, internal voltage regulators and analog circuitry may fail to stabilize, causing erratic output or communication lockup. The 1.8 V-compatible I/Os (Vdd_IO) can be powered independently but require ≥1.71 V to maintain logic-level integrity with host processors.
How does the LIS33DE self-test function verify sensor integrity?
The self-test applies an electrostatic force to the MEMS proof mass, inducing a known DC output shift (e.g., −3 to −32 LSB on X-axis at ±2g). By reading OUT_X/Y/Z registers before and after enabling the STP bit in CTRL_REG1, users confirm the measured delta falls within datasheet-specified ranges - validating both MEMS structure and ADC signal chain.
Can the LIS33DE generate interrupts for motion events on a single axis only?
Yes. The FF_WU_CFG register allows independent enable/disable of X, Y, and Z axes for free-fall and wake-up events. For example, setting bits 5–3 to 001 activates only the Z-axis interrupt, useful for detecting vertical drop events while ignoring lateral motion - reducing false triggers in handheld applications.
What is the significance of separate Vdd and Vdd_IO supplies in the LIS33DE?
Vdd powers the MEMS sensing element and analog signal chain, while Vdd_IO supplies only the digital I/O buffers. This separation allows the sensor core to remain powered down (Vdd = 0) while maintaining I²C/SPI bus communication (Vdd_IO active), enabling host-controlled configuration without waking the measurement path - critical for ultra-low-power system architectures.
LIS33DE 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:
- ±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:
- 16-LGA (3x3)
LIS33DE FAQ
1.How can I place an order for LIS33DE through Aetrix?
Please submit a Request for Quotation (RFQ) for LIS33DE 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 LIS33DE reliable?
The price and inventory of LIS33DE are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for LIS33DE is usually 5 days.
3.What payment methods are accepted for LIS33DE?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for LIS33DE transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for LIS33DE?
LIS33DE orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your LIS33DE 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 LIS33DE?
For technical support, including LIS33DE datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your LIS33DE requirements.
6.How does Aetrix verify that LIS33DE is sourced from the original manufacturer or authorized distributors?
All LIS33DE 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 LIS33DE meets industry standards.
7.What is the process for return or replacement of LIS33DE?
All LIS33DE units undergo pre-shipment inspection (PSI). If there is an issue with LIS33DE, 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 LIS33DE part is unused and in its original packaging.
Return procedure for LIS33DE:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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