component

SN74LVC1G139DCUR

Public Made by Adom

by adom

Texas Instruments Signal Switches / Encoders & Decoders / Multiplexers, VSSOP-8-0.5mm. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs sn74lvc1g139dcur: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json sn74lvc1g139dcur: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sn74lvc1g139dcur: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sn74lvc1g139dcur-etched.fit.json sn74lvc1g139dcur: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g139dcur-etched.glb sn74lvc1g139dcur: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g139dcur-etched.step sn74lvc1g139dcur: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74lvc1g139dcur.glb Publish 0.1.0 · Ray
sn74lvc1g139dcur.kicad_mod Publish 0.1.0 · Ray
sn74lvc1g139dcur.kicad_sym Publish 0.1.0 · Ray
sn74lvc1g139dcur.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
sn74lvc1g139dcur.step Publish 0.1.0 · Ray

SN74LVC1G139DCUR

Texas Instruments · Signal Switches / Encoders & Decoders / Multiplexers · VSSOP-8-0.5mm

SN74LVC1G139DCUR from Texas Instruments, in a VSSOP-8-0.5mm. 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 A input Address input, bit 0. CMOS-level select input; VIH from 0.65*VCC (at 1.65-1.95 V) up to 2 V (at 3-3.6 V). Input voltage tolerant to 5.5 V regardless of VCC.
2 B input Address input, bit 1. CMOS-level select input; VIH from 0.65*VCC (at 1.65-1.95 V) up to 2 V (at 3-3.6 V). Input voltage tolerant to 5.5 V regardless of VCC.
3 Y3 output Decoder output 3; asserted low when B is high and A is high. Push-pull CMOS output rated for ±24 mA drive at 3.3 V.
4 GND power_in Ground reference (0 V).
5 Y2 output Decoder output 2; asserted low when B is high and A is low. Push-pull CMOS output rated for ±24 mA drive at 3.3 V.
6 Y1 output Decoder output 1; asserted low when B is low and A is high. Push-pull CMOS output rated for ±24 mA drive at 3.3 V.
7 Y0 output Decoder output 0; asserted low when B is low and A is low. Push-pull CMOS output rated for ±24 mA drive at 3.3 V.
8 VCC power_in Supply voltage. Operating range 1.65 V to 5.5 V; data retention down to 1.5 V. Decouple with a 0.1 µF ceramic to GND.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package VSSOP-8-0.5mm
Category Logic
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • SN74LVC1G139DCUR
  • SN74LVC1G139DCURDCT
  • SN74LVC1G139DCURDCTR
  • SN74LVC1G139DCURYZP
  • SN74LVC1G139DCURYZPR

CAD (KiCad official)

  • Symbol: SN74LVC1G139DCUR
  • Footprint: Package_SO:VSSOP-8_2.3x2mm_P0.5mm
  • 3D model: VSSOP-8-0.5mm (KiCad packages3D, STEP)
  • 3D model files: sn74lvc1g139dcur-etched.step / sn74lvc1g139dcur-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc1g139dcur.step / sn74lvc1g139dcur.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sn74lvc1g139dcur.step 122 KB You want the bare part, or you mark your own boards.
sn74lvc1g139dcur-etched.step 2.9 MB You want the part with SN74LVC1G139DCUR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 713 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 e27e598d1d356ab2, 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