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Contents

README

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SN74HC125N

Texas Instruments · Buffers, Drivers, Receivers, Transceivers · DIP-14

SN74HC125N from Texas Instruments, in a DIP-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 1OE input Channel 1 output enable input, active low.
2 1A input Channel 1 input A.
3 1Y tri_state Channel 1 output Y, three-state output.
4 2OE input Channel 2 output enable input, active low.
5 2A input Channel 2 input A.
6 2Y tri_state Channel 2 output Y, three-state output.
7 GND power_in Ground.
8 3Y tri_state Channel 3 output Y, three-state output.
9 3A input Channel 3 input A.
10 3OE input Channel 3 output enable input, active low.
11 4Y tri_state Channel 4 output Y, three-state output.
12 4A input Channel 4 input A.
13 4OE input Channel 4 output enable input, active low.
14 VCC power_in Positive supply voltage.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74HC125N
  • Footprint: Package_DIP:DIP-14_W7.62mm
  • 3D model: DIP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74hc125n-etched.step / sn74hc125n-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc125n.step / sn74hc125n.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 64c660a6d8611b92, retrieved 2026-10-01, 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