component

STK8321

Public Unreviewed

by Ray

SENSORTEK Attitude Sensor/Gyroscope, LGA-12(2x2). Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentsensorstk8321
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity

3D Model

Open in new tab ↗

Symbol & Footprint

Schematic Symbol

Open full view ↗

PCB Footprint

Open full view ↗
Contents

README

markdown

STK8321

SENSORTEK · Attitude Sensor/Gyroscope · LGA-12(2x2)

STK8321 from SENSORTEK, in a LGA-12(2x2). 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 SA0/SDO bidirectional In I2C mode, selects the 7-bit slave address (SA0=1 → 0x1F, SA0=0 → 0x0F). In 4-wire SPI mode, serves as the Serial Data Output (SDO); not connected in 3-wire SPI mode (recommended to pull SDO up to VDDIO or down to GND via 10 kΩ).
2 SDA/SDI/SDIO bidirectional Serial data. Open-drain SDA in I2C mode, SDI (data input) in 4-wire SPI, bidirectional SDIO in 3-wire SPI. Requires external pull-up to VDDIO when used as I2C SDA.
3 VDDIO power_in Digital interface supply voltage. Operating range 1.62 V to 3.6 V (typ 2.6 V). Decouple with 0.1 µF to GNDIO.
4 RES input Reserved. Recommended to tie to GND.
5 INT1 output Programmable interrupt output 1. Can be configured push-pull or open-drain, active-high or active-low (via INTCFG1 0x20). Any interrupt source (new data, any-motion/slope, significant motion, FIFO watermark/full) can be routed here through INTMAP2 (0x1A).
6 INT2 output Programmable interrupt output 2. Same configurability as INT1 (push-pull/open-drain, active polarity); independent interrupt-source routing via INTMAP2.
7 VS power_in Analog/core supply voltage. Operating range 1.7 V to 3.6 V (typ 2.6 V). Decouple with 10 µF (Cs) to GND close to the device.
8 GNDIO power_in Digital interface ground. Must be connected to ground; return path for VDDIO.
9 GND power_in Analog/core ground. Must be connected to ground; return path for VS.
10 /CS input Interface-select and SPI chip-select. Tie high (to VDDIO) to enable I2C mode; drive low to enable SPI mode and select the device for a SPI transaction.
11 NC unconnected Not internally connected. Leave floating or tie to ground.
12 SCL/SCK input Serial clock. Open-drain SCL in I2C mode (external pull-up to VDDIO required, up to 400 kHz Fast Mode). SCK in SPI mode (up to 8 MHz, CPOL/CPHA 00 or 11 auto-detected on /CS falling edge).

Key specifications

Parameter Value
Manufacturer SENSORTEK
Package LGA-12(2x2)
Category Sensor
Pins 12

CAD (KiCad official)

  • Symbol: STK8321
  • Footprint: Package_LGA:LGA-12_2x2mm_P0.5mm
  • 3D model: LGA-12(2x2) (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: SENSORTEK datasheet (38 pp, sha256 34fa58754c0eb800, 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).

Datasheet PDF