# UA9636ACP

**Texas Instruments** · RS232 ICs · PDIP-8

UA9636ACP 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 | W-S | passive | Wave-shape control terminal; a single external resistor R(WS) connected from this pin to GND sets the slew rate of both drivers, with R(WS) specified from 10 kΩ to 1000 kΩ. |
| 2 | 1A | input | Input of driver 1, compatible with TTL and CMOS levels (VIH min 2 V, VIL max 0.8 V) and diode-protected against negative transients. |
| 3 | 2A | input | Input of driver 2, compatible with TTL and CMOS levels (VIH min 2 V, VIL max 0.8 V) and diode-protected against negative transients. |
| 4 | GND | power_in | Network ground terminal, the reference for all supply and input voltages and for the wave-shaping resistor R(WS). |
| 5 | VCC- | power_in | Negative supply, recommended −10.8 V to −13.2 V (nominal −12 V); absolute maximum range is 0.5 V to −15 V. |
| 6 | 2Y | output | Output of driver 2, a single-ended line driver output with output current limiting and an absolute maximum output voltage of ±15 V. |
| 7 | 1Y | output | Output of driver 1, a single-ended line driver output with output current limiting and an absolute maximum output voltage of ±15 V. |
| 8 | VCC+ | power_in | Positive supply, recommended 10.8 V to 13.2 V (nominal 12 V); absolute maximum range is up to 15 V. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `UA9636ACP`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: PDIP-8 (KiCad packages3D, STEP)
- 3D model files: `ua9636acp-etched.step` / `ua9636acp-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ua9636acp.step` / `ua9636acp.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/ua9636a) (16 pp, sha256 `d936900d9dcdf5c9`, retrieved 2026-10-08, 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/ua9636acp-datasheet.pdf)