LSM6DSOTR

@@ -0,0 +1,53 @@+# LSM6DSOTR++**STMicroelectronics** · Attitude Sensor/Gyroscope · LGA-14(2.5x3)++LSM6DSOTR from STMicroelectronics, in a LGA-14(2.5x3). 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 | SDO/SA0 | bidirectional | SPI 4-wire serial data output (SDO) in SPI mode; also serves as the least-significant bit of the I2C slave address (SA0) - tied high sets I2C address 1101011b, tied low sets 1101010b. |+| 2 | SDx | bidirectional | Sensor-hub / auxiliary interface data pin. Mode 1: tie to VDDIO or GND. Mode 2: master I2C serial data (MSDA). Mode 3/4: auxiliary SPI 3/4-wire serial data input (SDI) and SPI 3-wire serial data output (SDO). |+| 3 | SCx | bidirectional | Sensor-hub / auxiliary interface clock pin. Mode 1: tie to VDDIO or GND. Mode 2: master I2C serial clock (MSCL). Mode 3/4: auxiliary SPI 3/4-wire serial port clock (SPC_Aux). |+| 4 | INT1 | output | Programmable interrupt 1 output, available in both I2C and SPI modes; polarity and event mapping (data ready, FIFO threshold/full/ovr, wakeup, free-fall, tap, 6D, tilt, SMD, FSM, etc.) are register-configurable. |+| 5 | VDDIO | power_in | Power supply for the digital I/O pins. Operating range 1.62 V to 3.6 V. A 100 nF filter capacitor to GND is recommended. |+| 6 | GND | power_in | 0 V supply / device ground reference. |+| 7 | GND | power_in | 0 V supply / device ground reference. |+| 8 | VDD | power_in | Analog / core supply voltage. Operating range 1.71 V to 3.6 V (typ 1.8 V). A 100 nF filter capacitor to GND is recommended. |+| 9 | INT2/DEN | bidirectional | Programmable interrupt 2 (INT2) output, doubles as Data ENable (DEN) input. In Mode 2 it can also serve as MDRDY, the I2C-master external synchronization signal. |+| 10 | OCS_Aux | input | Auxiliary SPI interface chip-select / enable. In Modes 1 and 2 (no auxiliary SPI): leave electrically unconnected but soldered to the PCB. |+| 11 | SDO_Aux | tri_state | Auxiliary SPI 4-wire serial data output (SDO_Aux). In auxiliary-SPI 3-wire mode, and in Modes 1/2 that do not use the auxiliary interface, tie to VDD_IO or leave electrically unconnected but soldered to the PCB. |+| 12 | CS | input | I2C/MIPI-I3C vs SPI interface-mode select and SPI chip-select. Tie high (1) for SPI idle / I2C·I3C communication enabled; drive low (0) for SPI communication / I2C·I3C disabled. |+| 13 | SCL/SPC | input | Main host interface serial clock: I2C/MIPI I3C serial clock (SCL) when I2C/I3C is selected, or SPI serial port clock (SPC) when SPI is selected. |+| 14 | SDA/SDI/SDO | bidirectional | Main host interface serial data: I2C/MIPI I3C serial data (SDA) when I2C/I3C is selected, SPI serial data input (SDI) in 4-wire SPI mode, or 3-wire SPI serial data output (SDO) when 3-wire SPI is enabled via CTRL3_C (SIM). |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | STMicroelectronics |+| Package | LGA-14(2.5x3) |+| Category | Sensor |+| Pins | 14 |++## Ordering variants++- `LSM6DSOTR`++## CAD (KiCad official)++- Symbol: `LSM6DSOTR`+- Footprint: `Package_LGA:Bosch_LGA-14_3x2.5mm_P0.5mm`+- 3D model: LGA-14(2.5x3) (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [STMicroelectronics datasheet](https://www.st.com/resource/en/datasheet/lsm6dsotr.pdf) (172 pp, sha256 `1074e39739595e97`, retrieved 2026-08-17, tier: manufacturer)+- **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](docs/lsm6dsotr-datasheet.pdf)

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