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SN74HC139PWR

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

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Contents

README

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SN74HC139PWR

Texas Instruments · Signal Switches / Encoders & Decoders / Multiplexers · TSSOP-16

SN74HC139PWR 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 Decoder 1 active-low enable (strobe) input. When high, all 1Y outputs are forced high; when low, the selected 1Y output goes low.
2 1A input Decoder 1 select input A (LSB of the 2-bit select). CMOS logic input, 1 µA max input current.
3 1B input Decoder 1 select input B (MSB of the 2-bit select). CMOS logic input, 1 µA max input current.
4 1Y0 output Decoder 1 active-low output 0 (selected when B=L, A=L and 1G=L). Can drive up to 10 LSTTL loads; ±4 mA output drive at 5 V.
5 1Y1 output Decoder 1 active-low output 1 (selected when B=L, A=H and 1G=L). ±4 mA output drive at 5 V.
6 1Y2 output Decoder 1 active-low output 2 (selected when B=H, A=L and 1G=L). ±4 mA output drive at 5 V.
7 1Y3 output Decoder 1 active-low output 3 (selected when B=H, A=H and 1G=L). ±4 mA output drive at 5 V.
8 GND power_in Ground reference (0 V). Common return for VCC supply current.
9 2Y3 output Decoder 2 active-low output 3 (selected when B=H, A=H and 2G=L). ±4 mA output drive at 5 V.
10 2Y2 output Decoder 2 active-low output 2 (selected when B=H, A=L and 2G=L). ±4 mA output drive at 5 V.
11 2Y1 output Decoder 2 active-low output 1 (selected when B=L, A=H and 2G=L). ±4 mA output drive at 5 V.
12 2Y0 output Decoder 2 active-low output 0 (selected when B=L, A=L and 2G=L). ±4 mA output drive at 5 V.
13 2B input Decoder 2 select input B (MSB of the 2-bit select). CMOS logic input, 1 µA max input current.
14 2A input Decoder 2 select input A (LSB of the 2-bit select). CMOS logic input, 1 µA max input current.
15 2G input Decoder 2 active-low enable (strobe) input. When high, all 2Y outputs are forced high; when low, the selected 2Y output goes low.
16 VCC power_in Positive supply voltage input. Recommended operating range 2 V to 6 V; absolute max 7 V. Bypass with 0.1 µF ceramic capacitor placed close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • SN74HC139PWR
  • SN74HC139PWRD
  • SN74HC139PWRDR
  • SN74HC139PWRDT
  • SN74HC139PWRDB
  • SN74HC139PWRDBR
  • SN74HC139PWRN
  • SN74HC139PWRNE4
  • SN74HC139PWRNS
  • SN74HC139PWRNSR
  • SN74HC139PWRJ
  • SN74HC139PWRW
  • SN74HC139PWRFK

CAD (KiCad official)

  • Symbol: SN74HC139PWR
  • Footprint: Package_SO:TSSOP-16_4.4x5mm_P0.65mm
  • 3D model: TSSOP-16 (KiCad packages3D, STEP)
  • 3D model files: sn74hc139pwr-etched.step / sn74hc139pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc139pwr.step / sn74hc139pwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (30 pp, sha256 7bed90a2f9c2fe80, retrieved 2026-08-17, tier: manufacturer)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF