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Contents

README

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SN74HC158PWR

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

SN74HC158PWR from Texas Instruments, in a TSSOP-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 Data select input; LOW selects A group inputs, HIGH selects B group inputs
2 1A input First channel data input A
3 1B input First channel data input B
4 1Y output First channel output, inverted data from selected input
5 2A input Second channel data input A
6 2B input Second channel data input B
7 2Y output Second channel output, inverted data from selected input
8 GND power_in Ground
9 3Y output Third channel output, inverted data from selected input
10 3B input Third channel data input B
11 3A input Third channel data input A
12 4Y output Fourth channel output, inverted data from selected input
13 4B input Fourth channel data input B
14 4A input Fourth channel data input A
15 G input Strobe input, active LOW; when HIGH disables multiplexer and forces all outputs HIGH
16 VCC power_in Positive power supply; recommended operating range 2V to 6V

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74HC158PWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc158pwr-etched.step / sn74hc158pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc158pwr.step / sn74hc158pwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (19 pp, sha256 2dab2a1df902eb79, retrieved 2026-09-26, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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