# SN65HVD22P

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

SN65HVD22P from Texas Instruments, in a PDIP-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 from the receiver; the receiver output current is limited to ±10 mA (absolute maximum). |
| 2 | RE | input | Receiver enable, active low; logic-input thresholds are VIL 0.8 V maximum and VIH 2 VCC minimum, with input voltage limited to -0.5 V to VCC + 0.5 V. |
| 3 | DE | input | Driver enable, active high; logic-input thresholds are VIL 0.8 V maximum and VIH 2 VCC minimum, with input voltage limited to -0.5 V to VCC + 0.5 V. |
| 4 | D | input | Driver data input; logic-input thresholds are VIL 0.8 V maximum and VIH 2 VCC minimum, with input voltage limited to -0.5 V to VCC + 0.5 V. |
| 5 | GND | power_in | Local device ground and reference potential for the device; all voltages except differential bus voltages are referenced to the network ground terminal. |
| 6 | A | bidirectional | Bus I/O: driver output or receiver input, complementary to B; the recommended bus I/O voltage range is -20 V to 25 V and the absolute maximum is -27 V to 27 V. |
| 7 | B | bidirectional | Bus I/O: driver output or receiver input, complementary to A; the recommended bus I/O voltage range is -20 V to 25 V and the absolute maximum is -27 V to 27 V. |
| 8 | VCC | power_in | Supply pin; the recommended supply range is 4.5 V to 5.5 V (5 V nominal). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SN65HVD22P`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files: `sn65hvd22p-etched.step` / `sn65hvd22p-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sn65hvd22p.step` / `sn65hvd22p.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/cn/lit/gpn/sn65hvd23) (38 pp, sha256 `d49d7aaead689692`, retrieved 2026-10-08, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/sn65hvd22p-datasheet.pdf)