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SN74AHC139PWR

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Texas Instruments Signal Switches, Multiplexers, Decoders, TSSOP-16. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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Symbol & Footprint

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Contents

README

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SN74AHC139PWR

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

SN74AHC139PWR from Texas Instruments, in a TSSOP-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 1G input Active low strobe input for channel 1 to enable decoder outputs, accepts 0 to 5.5 V.
2 1A0 input Channel 1 address select input bit 0, input voltage range 0 to 5.5 V.
3 1A1 input Channel 1 address select input bit 1, input voltage range 0 to 5.5 V.
4 1Y0 output Channel 1 decoder output 0, driven low when selected via A1:A0 and 1G is asserted, output voltage 0 to VCC.
5 1Y1 output Channel 1 decoder output 1, driven low when selected via A1:A0 and 1G is asserted, output voltage 0 to VCC.
6 1Y2 output Channel 1 decoder output 2, driven low when selected via A1:A0 and 1G is asserted, output voltage 0 to VCC.
7 1Y3 output Channel 1 decoder output 3, driven low when selected via A1:A0 and 1G is asserted, output voltage 0 to VCC.
8 GND power_in Ground, negative supply reference voltage.
9 2Y3 output Channel 2 decoder output 3, driven low when selected via A1:A0 and 2G is asserted, output voltage 0 to VCC.
10 2Y2 output Channel 2 decoder output 2, driven low when selected via A1:A0 and 2G is asserted, output voltage 0 to VCC.
11 2Y1 output Channel 2 decoder output 1, driven low when selected via A1:A0 and 2G is asserted, output voltage 0 to VCC.
12 2Y0 output Channel 2 decoder output 0, driven low when selected via A1:A0 and 2G is asserted, output voltage 0 to VCC.
13 2A1 input Channel 2 address select input bit 1, input voltage range 0 to 5.5 V.
14 2A0 input Channel 2 address select input bit 0, input voltage range 0 to 5.5 V.
15 2G input Active low strobe input for channel 2 to enable decoder outputs, accepts 0 to 5.5 V.
16 VCC power_in Positive supply voltage, operating range 2 to 5.5 V.

Key specifications

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

CAD (KiCad official)

  • Symbol: SN74AHC139PWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74ahc139pwr-etched.step / sn74ahc139pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74ahc139pwr.step / sn74ahc139pwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 44a38419673a4abe, retrieved 2026-09-23, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-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