component
AM26LS31CD
Public Made by Adomby adom
Texas Instruments RS-485 / RS-422 ICs, SOIC-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownAM26LS31CD
Texas Instruments · RS-485 / RS-422 ICs · SOIC-16
AM26LS31CD 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 | 1A | input | RS-422 Driver #1 data input for controlling complementary outputs 1Y and 1Z. |
| 2 | 1Y | output | RS-422 Driver #1 output line; high impedance tri-state when output disabled. |
| 3 | 1Z | output | Complementary RS-422 Driver #1 output line; high impedance tri-state when disabled. |
| 4 | G | input | Output enable input for Drivers #1 and #2; active high to enable outputs when G is high and G (pin 12) is low. |
| 5 | 2Z | output | Complementary RS-422 Driver #2 output line; high impedance tri-state when disabled. |
| 6 | 2Y | output | RS-422 Driver #2 output line; high impedance tri-state when output disabled. |
| 7 | 2A | input | RS-422 Driver #2 data input for controlling complementary outputs 2Y and 2Z. |
| 8 | GND | power_in | Device ground (0V reference); decouple to VCC with 0.1µF capacitor. |
| 9 | 3A | input | RS-422 Driver #3 data input for controlling complementary outputs 3Y and 3Z. |
| 10 | 3Y | output | RS-422 Driver #3 output line; high impedance tri-state when output disabled. |
| 11 | 3Z | output | Complementary RS-422 Driver #3 output line; high impedance tri-state when disabled. |
| 12 | G | input | Output enable input for Drivers #3 and #4; active low to enable outputs when G is low and G (pin 4) is high. |
| 13 | 4Z | output | Complementary RS-422 Driver #4 output line; high impedance tri-state when disabled. |
| 14 | 4Y | output | RS-422 Driver #4 output line; high impedance tri-state when output disabled. |
| 15 | 4A | input | RS-422 Driver #4 data input for controlling complementary outputs 4Y and 4Z. |
| 16 | VCC | power_in | Positive 5V power supply input; bypass with 0.1µF capacitor to GND near the device. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-16 |
| Category | Interface |
| Pins | 16 |
CAD (KiCad official)
- Symbol:
AM26LS31CD - Footprint:
Package_SO:SOIC-16_3.9x9.9mm_P1.27mm - 3D model: SOIC-16 (KiCad packages3D, STEP)
- 3D model files:
am26ls31cd-etched.step/am26ls31cd-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);am26ls31cd.step/am26ls31cd.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (35 pp, sha256
aa1334801b86f628, retrieved 2026-10-05, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).