# MAX202CD

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

MAX202CD from Texas Instruments, in a SOIC-16. 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 external 0.1µF charge pump capacitor C1. |
| 2 | V+ | power_out | Positive charge pump output for storage capacitor, voltage range VCC - 0.3V to 14V. |
| 3 | C1- | passive | Negative lead of external 0.1µF charge pump capacitor C1. |
| 4 | C2+ | passive | Positive lead of external 0.1µF charge pump capacitor C2. |
| 5 | C2- | passive | Negative lead of external 0.1µF charge pump capacitor C2. |
| 6 | V- | power_out | Negative charge pump output for storage capacitor, voltage range -14V to 0.3V. |
| 7 | DOUT2 | output | RS-232 driver output for channel 2, voltage range ±5V to ±9V with ±15kV ESD protection. |
| 8 | RIN2 | input | RS-232 receiver input for channel 2, accepts maximum ±30V with ±15kV ESD protection. |
| 9 | ROUT2 | output | Logic output from receiver 2 to UART, voltage range 0V to VCC (5V) with 5kΩ internal load to ground. |
| 10 | DIN2 | input | Logic input to driver 2 from UART, accepts 0V to 5.5V with VIH ≥ 2V and VIL ≤ 0.8V, no internal pullup. |
| 11 | DIN1 | input | Logic input to driver 1 from UART, accepts 0V to 5.5V with VIH ≥ 2V and VIL ≤ 0.8V, no internal pullup. |
| 12 | ROUT1 | output | Logic output from receiver 1 to UART, voltage range 0V to VCC (5V) with 5kΩ internal load to ground. |
| 13 | RIN1 | input | RS-232 receiver input for channel 1, accepts maximum ±30V with ±15kV ESD protection. |
| 14 | DOUT1 | output | RS-232 driver output for channel 1, voltage range ±5V to ±9V with ±15kV ESD protection. |
| 15 | GND | power_in | Ground reference for device. |
| 16 | VCC | power_in | Supply voltage input, voltage range 4.5V to 5.5V; bypass to ground with minimum 0.1µF. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `MAX202CD`
- Footprint: `Package_SO:SOIC-16_3.9x9.9mm_P1.27mm`
- 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files: `max202cd-etched.step` / `max202cd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `max202cd.step` / `max202cd.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/max202) (28 pp, sha256 `a9cc56df98fe6254`, retrieved 2026-10-06, 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-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/max202cd-datasheet.pdf)