# SN65HVD231QDR

**Texas Instruments** · CAN Transceivers · SOIC-8

SN65HVD231QDR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

## Pinout

| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | D | input | Driver input signal to the differential transmitter stage. |
| 2 | GND | power_in | Ground reference. |
| 3 | VCC | power_in | 3.3-V power supply. |
| 4 | R | output | Single-ended receiver output signal from the differential receiver stage. |
| 5 | Vref | power_in | Reference voltage output providing VCC/2 for external circuitry. |
| 6 | CANL | tri_state | CAN low bus line; operates over -2 V to 7 V common-mode range with tri-state transmit/receive capability. |
| 7 | CANH | tri_state | CAN high bus line; operates over -2 V to 7 V common-mode range with tri-state transmit/receive capability. |
| 8 | RS | input | Mode select input; high level selects standby/sleep mode, low level or resistor to ground selects high-speed or slope-controlled mode. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-8 |
| Category | Interface |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `SN65HVD231QDR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd231qdr-etched.step` / `sn65hvd231qdr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd231qdr.step` / `sn65hvd231qdr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/sn65hvd231q.pdf) (36 pp, sha256 `275feb27291ab482`, retrieved 2026-10-07, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-5-5` (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
- **CAD:** KiCad official libraries (CC-BY-SA 4.0).

[Datasheet PDF](docs/sn65hvd231qdr-datasheet.pdf)