component

SN74F157ADR

Public Made by Adom

by adom

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

componentlogicsn74f157adrfactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
sn74f157adr / README.md
History Download
Ray Publish 0.1.0 3b83bcb 12d ago

SN74F157ADR

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

SN74F157ADR 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 A/B input Common select input: low selects the 1A-4A data inputs and high selects the 1B-4B data inputs, with VIH min 2 V and VIL max 0.8 V at VCC 4.5 V to 5.5 V.
2 1A input Channel 1 data input A, selected when A/B is low and passed to 1Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
3 1B input Channel 1 data input B, selected when A/B is high and passed to 1Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
4 1Y output Channel 1 true (non-inverting) multiplexer output, forced low when strobe G is high; rated IOL 20 mA and IOH −1 mA.
5 2A input Channel 2 data input A, selected when A/B is low and passed to 2Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
6 2B input Channel 2 data input B, selected when A/B is high and passed to 2Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
7 2Y output Channel 2 true (non-inverting) multiplexer output, forced low when strobe G is high; rated IOL 20 mA and IOH −1 mA.
8 GND power_in Ground reference for the device.
9 3Y output Channel 3 true (non-inverting) multiplexer output, forced low when strobe G is high; rated IOL 20 mA and IOH −1 mA.
10 3B input Channel 3 data input B, selected when A/B is high and passed to 3Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
11 3A input Channel 3 data input A, selected when A/B is low and passed to 3Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
12 4Y output Channel 4 true (non-inverting) multiplexer output, forced low when strobe G is high; rated IOL 20 mA and IOH −1 mA.
13 4B input Channel 4 data input B, selected when A/B is high and passed to 4Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
14 4A input Channel 4 data input A, selected when A/B is low and passed to 4Y while G is low; input levels are VIH min 2 V and VIL max 0.8 V.
15 G input Common active-high strobe: when high, all outputs are forced low; when low, the selected 4-bit word is routed to the outputs.
16 VCC power_in Supply voltage, 4.5 V to 5.5 V recommended (5 V nominal) for the SN74F157A, with an absolute maximum of 7 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74F157ADR
  • Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
  • 3D model: SOIC-16 (KiCad packages3D, STEP)
  • 3D model files: sn74f157adr-etched.step / sn74f157adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74f157adr.step / sn74f157adr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (15 pp, sha256 5c00f8ccbf83696d, retrieved 2026-10-11, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (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