component

SN74LS156DR

Public Made by Adom

by adom

Texas Instruments Signal Switches, Multiplexers, Decoders, SOP-16. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentlogicsn74ls156drfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 13d ago
viewers sn74ls156dr: viewers · Ray 13d ago
package.json sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
page.json sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
README.md Publish 0.1.0 · Ray 13d ago
sn74ls156dr-etched.glb sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls156dr-etched.step sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls156dr-hero.glb sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls156dr-hero.overlay.json sn74ls156dr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC body… · Ray 4d ago
sn74ls156dr.glb Publish 0.1.0 · Ray 13d ago
sn74ls156dr.kicad_mod Publish 0.1.0 · Ray 13d ago
sn74ls156dr.kicad_sym Publish 0.1.0 · Ray 13d ago
sn74ls156dr.lbr Publish 0.1.0 · Ray 13d ago
sn74ls156dr.step Publish 0.1.0 · Ray 13d ago

SN74LS156DR

Texas Instruments · Signal Switches, Multiplexers, Decoders · SOP-16

SN74LS156DR from Texas Instruments, in a SOP-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 1C input Data input of section 1, which is inverted at the 1Y0-1Y3 outputs.
2 1G input Active-low strobe (enable) input of section 1.
3 B input Common binary-address input B shared by both sections.
4 1Y3 output Open-collector output 3 of section 1.
5 1Y2 output Open-collector output 2 of section 1.
6 1Y1 output Open-collector output 1 of section 1.
7 1Y0 output Open-collector output 0 of section 1.
8 GND power_in Ground.
9 2Y0 output Open-collector output 0 of section 2.
10 2Y1 output Open-collector output 1 of section 2.
11 2Y2 output Open-collector output 2 of section 2.
12 2Y3 output Open-collector output 3 of section 2.
13 A input Common binary-address input A shared by both sections.
14 2G input Active-low strobe (enable) input of section 2.
15 2C input Active-low data input of section 2, which is not inverted through its outputs.
16 VCC power_in Positive supply voltage.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOP-16
Category Logic
Pins 16

CAD (KiCad official)

  • Symbol: SN74LS156DR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74ls156dr-etched.step / sn74ls156dr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ls156dr.step / sn74ls156dr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (22 pp, sha256 893a930eaec60d8f, retrieved 2026-10-11, tier: manufacturer)
  • 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