LIS2HH12TR - 3-Axis Accelerometer, ±2/±4/±8g | STMicroelectronics
MPN: LIS2HH12TR ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.15 | $2.15 |
| 10 | $1.93 | $19.30 |
| 100 | $1.72 | $172.00 |
| 500 | $1.55 | $775.00 |
| 1,000 | $1.38 | $1,380.00 |
Drop-in alternatives for LIS2HH12TR — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
LIS2DH12TR
✅ Drop-In✓ 99,999 In Stock
$0.67 / Unit
View Datasheet →LIS3DH
⚡ Same Package📋 Reference alternative (not in catalog)
FXLS8974CF
✅ Drop-In📋 Reference alternative (not in catalog)
LIS2HH12TR Maximum Ratings & Electrical Characteristics
| Axis | 3-axis (X, Y, Z) |
| Full Scale Range | ±2g, ±4g, ±8g |
| Resolution | 16-bit |
| Supply Voltage | 1.71V to 3.6V |
| Current Consumption (Normal Mode) | 180 µA |
| Current Consumption (Low Power Mode) | 50 µA |
| Noise Density | 220 µg/√Hz |
| Interface | I2C (400 kHz), SPI (10 MHz) |
| FIFO Buffer | 32-level |
| Temperature Sensor | Embedded |
| Operating Temperature | -40°C to +85°C |
| Package | LGA-12 (2x2x1 mm) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Halogen Free | Yes |
LIS2HH12TR Pin Configuration
| Pin 1 | VDD — Power supply (1.71V to 3.6V) |
| Pin 2 | GND — Ground |
| Pin 3 | SCL/SPC — I2C clock / SPI clock |
| Pin 4 | SDA/SDI — I2C data / SPI data in |
| Pin 5 | SA0 — I2C address select |
| Pin 6 | CS — Chip select (low for SPI, high for I2C) |
| Pin 7 | INT1 — Interrupt 1 output |
| Pin 8 | INT2 — Interrupt 2 output |
| Pin 9 | NC — Not connected |
| Pin 10 | NC — Not connected |
| Pin 11 | NC — Not connected |
| Pin 12 | NC — Not connected |
Safe Operating Area (SOA) & Thermal Characteristics
No official SOA curve available for this component. Always operate within absolute maximum ratings specified in the datasheet. Ensure adequate cooling and derate as needed.
Typical Applications
LIS2HH12TR is suitable for 6 applications: Wearable Devices, IoT Motion Sensing, Industrial Condition Monitoring, Automotive Anti-Theft Systems, Portable Electronics, Robotics and Drones.
Wearable Devices
The LIS2HH12TR is ideal for wearable devices such as fitness trackers and smartwatches due to its compact 2x2x1 mm package and low power consumption of 180 µA. It enables step counting, activity recognition, and orientation detection. In a typical wearable, the accelerometer is connected to a Bluetooth SoC via I2C, with the FIFO buffer reducing host wake-ups. The low noise density of 220 µg/√Hz ensures accurate motion tracking even during subtle movements. Power consumption is critical in wearables; the LIS2HH12TR's low-power mode at 50 µA extends battery life significantly compared to higher-power accelerometers.
Recommended
IoT Motion Sensing
In IoT applications, the LIS2HH12TR provides motion detection for smart home devices, asset tracking, and environmental monitoring. Its wide supply voltage range (1.71V to 3.6V) allows direct battery connection, and the programmable interrupt generators enable wake-on-motion, reducing system power consumption. The device's I2C interface simplifies integration with low-power MCUs. For battery-powered IoT nodes, the LIS2HH12TR's 50 µA low-power mode is essential for achieving multi-year battery life. The embedded temperature sensor also provides additional environmental data without extra components.
Recommended
Industrial Condition Monitoring
The LIS2HH12TR is used in industrial condition monitoring to detect vibration and shock in machinery. Its ±8g full-scale range captures high-impact events, while the 16-bit resolution provides fine detail for vibration analysis. The device's SPI interface (up to 10 MHz) enables high-speed data streaming to an industrial controller. In a typical setup, the accelerometer is mounted on a motor housing, and the data is analyzed for abnormal vibration patterns. The wide operating temperature range (-40°C to +85°C) ensures reliable operation in harsh industrial environments. The FIFO buffer helps manage data bursts, reducing the load on the host processor.
Recommended
Automotive Anti-Theft Systems
In automotive anti-theft systems, the LIS2HH12TR detects vehicle movement or tilt, triggering alarms. Its low power consumption is crucial for always-on monitoring, and the programmable interrupt can wake the system only when motion is detected. The device's AEC-Q100 qualification (if applicable) ensures reliability in automotive environments. The LIS2HH12TR's small size allows easy integration into existing ECU boards. The interrupt output can be connected directly to a microcontroller's wake-up pin, minimizing power draw during standby. The wide supply voltage range accommodates automotive battery voltage variations.
Recommended
Portable Electronics
The LIS2HH12TR is used in portable electronics like smartphones and tablets for screen rotation, gaming, and step counting. Its high resolution and low noise ensure smooth user experience. The device's I2C interface is compatible with most application processors. In a smartphone, the accelerometer data is fused with gyroscope data for accurate orientation. The LIS2HH12TR's small footprint saves PCB space, allowing for thinner devices. The FIFO buffer reduces I2C traffic, improving overall system efficiency. The device's low power consumption extends battery life in always-on applications.
Recommended
Robotics and Drones
In robotics and drones, the LIS2HH12TR provides acceleration feedback for stabilization and navigation. Its fast SPI interface enables real-time data acquisition, and the wide full-scale range (±8g) handles aggressive maneuvers. The device's small size and low weight are advantageous for aerial vehicles. In a drone, the accelerometer is part of the inertial measurement unit (IMU), providing data for attitude control. The LIS2HH12TR's low noise density ensures stable flight even in turbulent conditions. The interrupt outputs can be used for free-fall detection, triggering safety mechanisms.
Recommended
Recommended Products Summary
Engineering reference data for LIS2HH12TR — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | LIS2DH12TR | LIS3DH | BMI270 | FXLS8974CF |
|---|---|---|---|---|---|
| Package | LGA-12 (2x2x1 mm) | LGA-12 (2x2x1 mm) - same | LGA-12 (3x3x1 mm) - different | LGA-14 (2.5x3 mm) - different | LGA-12 (2x2x1 mm) - same |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | Bosch | NXP Semiconductors |
| Full Scale Range | ±2g, ±4g, ±8g | ±2g, ±4g, ±8g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g, ±16g | ±2g, ±4g, ±8g |
| Current Consumption (Normal) | 180 µA | 180 µA | 230 µA | 130 µA | 160 µA |
| Noise Density | 220 µg/√Hz | 220 µg/√Hz | 220 µg/√Hz | 180 µg/√Hz | 200 µg/√Hz |
| Interface | I2C, SPI | I2C, SPI | I2C, SPI | I2C, SPI | I2C, SPI |
| FIFO Buffer | 32-level | 32-level | 32-level | 1024-byte | 32-level |
| Operating Temperature | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +85°C | -40°C to +105°C |
Key Differentiators
- Smallest package in its class (vs LIS3DH)
- Lower power consumption (vs LIS3DH)
- Pin-compatible with LIS2DH12TR (vs LIS2DH12TR)
Design Notes
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 1) and connect it to the ground plane. Additionally, a 1 µF capacitor can be added for better noise filtering. Ensure the ground plane is continuous under the LGA package to minimize noise and improve thermal performance.
Follow the recommended land pattern in the datasheet for the LGA-12 package. Avoid placing vias directly under the package to prevent solder wicking. Use a 0.2 mm stencil thickness for solder paste to ensure proper solder joint formation. The package is sensitive to mechanical stress, so avoid bending the PCB near the sensor.
Ensure the I2C address is correctly configured via the SA0 pin. If multiple devices share the bus, assign unique addresses. Also, verify that the CS pin is tied to the correct logic level for the desired interface (high for I2C, low for SPI). Failure to do so will result in communication errors.
Compliance Information
RoHS and halogen-free per STMicroelectronics product page. Not AEC-Q100 qualified; for automotive use, verify with ST.