# HX65HVD3082-S

**ZHHXDZ** · RS-485 / RS-422 ICs · SOP-8

HX65HVD3082-S from ZHHXDZ, in a SOP-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 | RO | output | Receiver data output: per the receiver truth table, RO is high when A-B is -50 mV or more (RE low), low when A-B is -200 mV or less (RE low), and high for open-circuit or short-circuit receiver inputs (fail-safe), and it is high-impedance when RE is high. |
| 2 | RE | input | Receiver enable, active low: the receiver output is enabled when RE is low and goes high-impedance when RE is high, per the receiver truth table (text on this pin is partly garbled in the source). |
| 3 | DE | input | Driver enable, active high: the driver is enabled when DE is high and A/B go high-impedance when DE is low, per the driver truth table (text on this pin is partly garbled in the source). |
| 4 | DI | input | Driver data input: with DE high, a high DI drives A high and B low, and a low DI drives A low and B high. |
| 5 | GND | power_in | Ground reference for the device. |
| 6 | A | bidirectional | Non-inverting bus pin acting as driver output and receiver input, with ±15 kV HBM ESD protection between A and B. |
| 7 | B | bidirectional | Inverting bus pin acting as driver output and receiver input, with ±15 kV HBM ESD protection between A and B. |
| 8 | Vcc | power_in | Power supply; the working voltage range is 4.5 V to 5.5 V (Vcc = 5 V ±5%), with absolute maximum rating of 6.0 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | ZHHXDZ |
| Package | SOP-8 |
| Category | Interface |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `HX65HVD3082-S`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `hx65hvd3082-s-etched.step` / `hx65hvd3082-s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `hx65hvd3082-s.step` / `hx65hvd3082-s.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ZHHXDZ datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603014969780674560) (4 pp, sha256 `07007cbaf23ebacd`, retrieved 2026-10-18, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/hx65hvd3082-s-datasheet.pdf)