SN74HCS08DR from Texas Instruments, in a SOIC-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	1A	input	Channel 1, Input A. Schmitt-trigger CMOS input; hysteresis ~0.4 V at VCC=4.5 V.
2	1B	input	Channel 1, Input B. Schmitt-trigger CMOS input; hysteresis ~0.4 V at VCC=4.5 V.
3	1Y	output	Channel 1, Output Y = 1A · 1B. Push-pull CMOS output; ±7.8 mA drive at 6 V.
4	2A	input	Channel 2, Input A. Schmitt-trigger CMOS input.
5	2B	input	Channel 2, Input B. Schmitt-trigger CMOS input.
6	2Y	output	Channel 2, Output Y = 2A · 2B. Push-pull CMOS output.
7	GND	power_in	Ground reference (0 V).
8	3Y	output	Channel 3, Output Y = 3A · 3B. Push-pull CMOS output.
9	3A	input	Channel 3, Input A. Schmitt-trigger CMOS input.
10	3B	input	Channel 3, Input B. Schmitt-trigger CMOS input.
11	4Y	output	Channel 4, Output Y = 4A · 4B. Push-pull CMOS output.
12	4A	input	Channel 4, Input A. Schmitt-trigger CMOS input.
13	4B	input	Channel 4, Input B. Schmitt-trigger CMOS input.
14	VCC	power_in	Positive supply. Recommended VCC = 2 V to 6 V (absolute max 7 V).

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74HCS08DRD
SN74HCS08DR
SN74HCS08DRPW
SN74HCS08DRPWR
SN74HCS08DRBQA
SN74HCS08DRBQAR
SN74HCS08DRDYY
SN74HCS08DRDYYR

CAD (KiCad official)

Symbol: SN74HCS08DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74hcs08dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74hcs08dr-etched.step`	2.7 MB	You want the part with `SN74HCS08DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 671 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 (33 pp, sha256 e6bfff45e5946966, 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