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Contents

README

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SN74LS26D

Texas Instruments · Logic Gates · SOIC-14

SN74LS26D from Texas Instruments, in a SOIC-14. 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 Gate 1 input A; the device is a 2-input open-collector NAND gate, input voltage rated up to 7 V.
2 1B input Gate 1 input B; input voltage rated up to 7 V.
3 1Y output Gate 1 open-collector output (Y = NOT(AB)), rated to withstand 15 V.
4 2A input Gate 2 input A; input voltage rated up to 7 V.
5 2B input Gate 2 input B; input voltage rated up to 7 V.
6 2Y output Gate 2 open-collector output (Y = NOT(AB)), rated to withstand 15 V.
7 GND power_in Ground reference for the device; all voltage values are with respect to this terminal.
8 3Y output Gate 3 open-collector output (Y = NOT(AB)), rated to withstand 15 V.
9 3A input Gate 3 input A; input voltage rated up to 7 V.
10 3B input Gate 3 input B; input voltage rated up to 7 V.
11 4Y output Gate 4 open-collector output (Y = NOT(AB)), rated to withstand 15 V.
12 4A input Gate 4 input A; input voltage rated up to 7 V.
13 4B input Gate 4 input B; input voltage rated up to 7 V.
14 VCC power_in Supply voltage connected to the standard 5 V source; absolute maximum 7 V.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOIC-14
Category Logic
Pins 14

CAD (KiCad official)

  • Symbol: SN74LS26D
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ls26d-etched.step / sn74ls26d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls26d.step / sn74ls26d.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 9a1a26308045e3c8, retrieved 2026-10-07, tier: lcsc)
  • 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