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 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