# SN65HVD379DR

**Texas Instruments** · RS-485 / RS-422 ICs · SOIC-8

SN65HVD379DR 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 | VCC | power_in | 3.3-V supply input, recommended operating range 3 V to 3.6 V (absolute maximum 6 V). |
| 2 | R | output | Receiver output, high when VID ≥ 0.2 V and low when VID ≤ -0.2 V, rated for ±8 mA recommended output current. |
| 3 | D | input | Driver input, 5-V tolerant, with high-level input of 2 V to VCC and low-level input of 0 to 0.8 V; an open input drives Y low and Z high. |
| 4 | GND | power_in | Ground reference for the device and the network ground terminal. |
| 5 | Y | output | Non-inverting RS-485/RS-422 driver output, with bus-fault protection from -7 V to 12 V. |
| 6 | Z | output | Inverting RS-485/RS-422 driver output, with bus-fault protection from -7 V to 12 V. |
| 7 | B | input | Inverting differential receiver input (1/2 unit load), with bus-fault protection from -7 V to 12 V. |
| 8 | A | input | Non-inverting differential receiver input (1/2 unit load), with bus-fault protection from -7 V to 12 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN65HVD379DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd379dr-etched.step` / `sn65hvd379dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd379dr.step` / `sn65hvd379dr.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/sn65hvd379.pdf) (16 pp, sha256 `f4519a755ad726c7`, retrieved 2026-10-08, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (text+vision), consensus `claude-opus-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/sn65hvd379dr-datasheet.pdf)