# SN65HVD1782DR

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

SN65HVD1782DR 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 | R | output | Receive data output providing decoded differential bus state |
| 2 | RE | input | Receiver enable low-active input; receiver enabled when RE is logic low |
| 3 | DE | input | Driver enable high-active input; driver enabled when DE is logic high |
| 4 | D | input | Driver data input controlling differential output states when driver is enabled |
| 5 | GND | power_in | Ground reference potential for device operation |
| 6 | A | bidirectional | Differential bus pin A for driver output or receiver input, complementary to B, absolute maximum rating -70 to +30 V |
| 7 | B | bidirectional | Differential bus pin B for driver output or receiver input, complementary to A, absolute maximum rating -70 to +30 V |
| 8 | VCC | power_in | Supply voltage for device operation in 4.5-V to 5.5-V range |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN65HVD1782DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd1782dr-etched.step` / `sn65hvd1782dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd1782dr.step` / `sn65hvd1782dr.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/sn65hvd1782.pdf) (34 pp, sha256 `f8736dab94b48730`, retrieved 2026-10-01, 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/sn65hvd1782dr-datasheet.pdf)