# TRS3232ECDWR

**Texas Instruments** · RS232 ICs · SOIC-16-300mil

TRS3232ECDWR from Texas Instruments, in a SOIC-16-300mil. 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 | C1+ | passive | Positive lead of the C1 charge-pump capacitor. |
| 2 | V+ | power_out | Positive charge pump output for storage capacitor only. |
| 3 | C1- | passive | Negative lead of the C1 charge-pump capacitor. |
| 4 | C2+ | passive | Positive lead of the C2 charge-pump capacitor. |
| 5 | C2- | passive | Negative lead of the C2 charge-pump capacitor. |
| 6 | V- | power_out | Negative charge pump output for storage capacitor only. |
| 7 | DOUT2 | output | RS232 line data output (to remote RS232 system), driver 2. |
| 8 | RIN2 | input | RS232 line data input (from remote RS232 system), receiver 2, with ±25 V input range. |
| 9 | ROUT2 | output | Logic data output (to UART), receiver 2. |
| 10 | DIN2 | input | Logic data input (from UART), driver 2; must be a valid logic high or low. |
| 11 | DIN1 | input | Logic data input (from UART), driver 1; must be a valid logic high or low. |
| 12 | ROUT1 | output | Logic data output (to UART), receiver 1. |
| 13 | RIN1 | input | RS232 line data input (from remote RS232 system), receiver 1, with ±25 V input range. |
| 14 | DOUT1 | output | RS232 line data output (to remote RS232 system), driver 1. |
| 15 | GND | power_in | Ground. |
| 16 | VCC | power_in | Supply voltage, connect to external 3-V to 5.5-V power supply. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16-300mil |
| Category | Interface |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `TRS3232ECDWR`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
- 3D model files: `trs3232ecdwr-etched.step` / `trs3232ecdwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `trs3232ecdwr.step` / `trs3232ecdwr.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/trs3232e) (40 pp, sha256 `06934d6210268388`, 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-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/trs3232ecdwr-datasheet.pdf)