component
LIS331DLHTR
Public Unreviewedby Ray
STMicroelectronics Accelerometers, LGA-16(3x3). Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownLIS331DLHTR
STMicroelectronics · Accelerometers · LGA-16(3x3)
LIS331DLHTR from STMicroelectronics, in a LGA-16(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | Vdd_IO | power_in | Power supply for I/O pins. Typical 1.71 V to Vdd+0.1 V; sets logic thresholds (VIH = 0.8Vdd_IO, VOH = 0.9Vdd_IO). |
| 2 | NC | unconnected | Not connected. Leave floating. |
| 3 | NC | unconnected | Not connected. Leave floating. |
| 4 | SCL/SPC | input | Serial clock. Acts as I2C serial clock (SCL) in I2C mode or SPI serial port clock (SPC) in SPI mode. |
| 5 | GND | power_in | 0 V supply (ground reference). |
| 6 | SDA/SDI/SDO | bidirectional | Serial data. Functions as I2C serial data (SDA) in I2C mode, SPI serial data input (SDI) in 4-wire SPI mode, or 3-wire SPI serial data output (SDO) in 3-wire SPI mode. |
| 7 | SDO/SA0 | bidirectional | In SPI mode: serial data output (SDO). In I2C mode: LSb (bit 0) of the device I2C slave address (SA0) - selects one of two possible 7-bit slave addresses. |
| 8 | CS | input | SPI enable / I2C-SPI mode selection input. CS = 1: I2C mode enabled; CS = 0: SPI mode enabled (chip select active low during SPI transactions). |
| 9 | INT2 | output | Inertial interrupt 2 output. Programmable interrupt for free-fall / motion / 6D orientation events; polarity and latching configurable via CTRL_REG3 / INT2_CFG. |
| 10 | Reserved | passive | Reserved. Must be connected to GND for correct operation. |
| 11 | INT1 | output | Inertial interrupt 1 output. Programmable interrupt (free-fall / motion / data-ready) with configurable polarity and latching through CTRL_REG3 / INT1_CFG. |
| 12 | GND | power_in | 0 V supply (ground reference). |
| 13 | GND | power_in | 0 V supply (ground reference). |
| 14 | Vdd | power_in | Main analog power supply. Operational range 2.16 V to 3.6 V (2.5 V typical). Factory calibrated at 2.5 V. |
| 15 | Reserved | passive | Reserved. Must be connected to Vdd for correct operation. |
| 16 | GND | power_in | 0 V supply (ground reference). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | LGA-16(3x3) |
| Category | Sensors |
| Pins | 16 |
Ordering variants
Same part, different packaging or reel option.
LIS331DLHTR
CAD (KiCad official)
- Symbol:
LIS331DLHTR - Footprint:
Package_LGA:LGA-16_3x3mm_P0.5mm - 3D model: LGA-16(3x3) (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (38 pp, sha256
ed8b228d0b34329e, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).