# AM26LS31CN

**Texas Instruments** · RS-485 / RS-422 ICs · DIP-16

AM26LS31CN from Texas Instruments, in a DIP-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 | 1A | input | Logic data input for RS-422 driver 1. |
| 2 | 1Y | output | RS-422 complementary differential output for driver 1 capable of driving ±30 mA loads. |
| 3 | 1Z | output | RS-422 complementary differential output for driver 1 capable of driving ±30 mA loads. |
| 4 | G | input | Active-high output enable input for drivers 1 and 2. |
| 5 | 2Z | output | RS-422 complementary differential output for driver 2 capable of driving ±30 mA loads. |
| 6 | 2Y | output | RS-422 complementary differential output for driver 2 capable of driving ±30 mA loads. |
| 7 | 2A | input | Logic data input for RS-422 driver 2. |
| 8 | GND | power_in | Device ground reference pin. |
| 9 | 3A | input | Logic data input for RS-422 driver 3. |
| 10 | 3Y | output | RS-422 complementary differential output for driver 3 capable of driving ±30 mA loads. |
| 11 | 3Z | output | RS-422 complementary differential output for driver 3 capable of driving ±30 mA loads. |
| 12 | G | input | Active-low output enable input for drivers 3 and 4. |
| 13 | 4Z | output | RS-422 complementary differential output for driver 4 capable of driving ±30 mA loads. |
| 14 | 4Y | output | RS-422 complementary differential output for driver 4 capable of driving ±30 mA loads. |
| 15 | 4A | input | Logic data input for RS-422 driver 4. |
| 16 | VCC | power_in | Power supply input; 4.75 V to 5.25 V recommended for commercial grade. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `AM26LS31CN`
- Footprint: `Package_DIP:DIP-16_W7.62mm`
- 3D model: DIP-16 (KiCad packages3D, STEP)
- 3D model files: `am26ls31cn-etched.step` / `am26ls31cn-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `am26ls31cn.step` / `am26ls31cn.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/am26ls31) (35 pp, sha256 `aa1334801b86f628`, retrieved 2026-09-24, 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 0.2`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-sonnet-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/am26ls31cn-datasheet.pdf)