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docs sn74hc125pwr: 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 sn74hc125pwr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md sn74hc125pwr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
sn74hc125pwr-etched.fit.json sn74hc125pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74hc125pwr-etched.glb sn74hc125pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74hc125pwr-etched.step sn74hc125pwr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
sn74hc125pwr.glb Publish 0.1.0 · Ray
sn74hc125pwr.kicad_mod Publish 0.1.0 · Ray
sn74hc125pwr.kicad_sym Publish 0.1.0 · Ray
sn74hc125pwr.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
sn74hc125pwr.step Publish 0.1.0 · Ray

SN74HC125PWR

Texas Instruments · Buffer/Driver/Transceiver · TSSOP-14

SN74HC125PWR from Texas Instruments, in a TSSOP-14. 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 1OE input Channel 1 output enable, active low. When low, buffer 1 output (1Y) follows input 1A; when high, 1Y is high-impedance (three-state).
2 1A input Channel 1 buffer input. Logic level presented at 1Y when 1OE is low.
3 1Y tri_state Channel 1 buffer output, three-state. Drives the logic level of 1A when 1OE is low; high-Z when 1OE is high. Can source/sink up to ±7.8 mA at VCC = 6 V.
4 2OE input Channel 2 output enable, active low. When low, buffer 2 output (2Y) follows input 2A; when high, 2Y is high-impedance.
5 2A input Channel 2 buffer input.
6 2Y tri_state Channel 2 buffer output, three-state.
7 GND power_in Ground / negative supply return. 0 V reference.
8 3Y tri_state Channel 3 buffer output, three-state.
9 3A input Channel 3 buffer input.
10 3OE input Channel 3 output enable, active low.
11 4Y tri_state Channel 4 buffer output, three-state.
12 4A input Channel 4 buffer input.
13 4OE input Channel 4 output enable, active low.
14 VCC power_in Positive supply. Recommended 2 V to 6 V (absolute max 7 V).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-14
Category Logic
Pins 14

Ordering variants

Same part, different packaging or reel option.

  • SN74HC125PWR
  • SN74HC125PWRD
  • SN74HC125PWRDR
  • SN74HC125PWRDB
  • SN74HC125PWRDBR
  • SN74HC125PWRN
  • SN74HC125PWRNS
  • SN74HC125PWRNSR
  • SN74HC125PWRJ
  • SN74HC125PWRFK

CAD (KiCad official)

  • Symbol: SN74HC125PWR
  • Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
  • 3D model: TSSOP-14 (KiCad packages3D, STEP)
  • 3D model files: sn74hc125pwr-etched.step / sn74hc125pwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74hc125pwr.step / sn74hc125pwr.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
sn74hc125pwr.step 194 KB You want the bare part, or you mark your own boards.
sn74hc125pwr-etched.step 2.5 MB You want the part with SN74HC125PWR already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 638 faces against 237 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 (37 pp, sha256 c21649cccf953ad9, 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