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Contents

README

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SN74LS14D

Texas Instruments · Inverters · SOIC-14

SN74LS14D 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 Channel 1 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
2 1Y output Schmitt-trigger inverter output for channel 1; output is logic inverted from input 1A.
3 2A input Channel 2 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
4 2Y output Schmitt-trigger inverter output for channel 2; output is logic inverted from input 2A.
5 3A input Channel 3 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
6 3Y output Schmitt-trigger inverter output for channel 3; output is logic inverted from input 3A.
7 GND power_in Ground reference (0 V).
8 4Y output Schmitt-trigger inverter output for channel 4; output is logic inverted from input 4A.
9 4A input Channel 4 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
10 5Y output Schmitt-trigger inverter output for channel 5; output is logic inverted from input 5A.
11 5A input Channel 5 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
12 6Y output Schmitt-trigger inverter output for channel 6; output is logic inverted from input 6A.
13 6A input Channel 6 Schmitt-trigger inverter input; input has hysteresis for noise immunity.
14 VCC power_in Positive power supply; recommended operating voltage 4.75 to 5.25 V at temperature 0 to 70°C.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74LS14D
  • Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
  • 3D model: SOIC-14 (KiCad packages3D, STEP)
  • 3D model files: sn74ls14d-etched.step / sn74ls14d-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls14d.step / sn74ls14d.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (39 pp, sha256 059f7041c38abb52, retrieved 2026-10-01, tier: lcsc)
  • 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