SN74ACT08DR 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. Logic input to gate 1; TTL-compatible, accepts 0V to 5.5V regardless of VCC. VIH ≥ 2V, VIL ≤ 0.8V. Input current ±1µA max.
2	1B	input	Channel 1, Input B. Logic input to gate 1; TTL-compatible, accepts 0V to 5.5V. VIH ≥ 2V, VIL ≤ 0.8V.
3	1Y	output	Channel 1, Output Y. AND-gate output: Y = 1A · 1B. Drives ±24mA at VCC = 4.5V-5.5V (VOH ≥ 3.7V at -24mA, VOL ≤ 0.5V at 24mA).
4	2A	input	Channel 2, Input A. Logic input to gate 2; TTL-compatible, accepts 0V to 5.5V.
5	2B	input	Channel 2, Input B. Logic input to gate 2; TTL-compatible, accepts 0V to 5.5V.
6	2Y	output	Channel 2, Output Y. AND-gate output: Y = 2A · 2B. Drives ±24mA.
7	GND	power_in	Ground reference (0V). Return for VCC supply and all logic-low outputs.
8	3Y	output	Channel 3, Output Y. AND-gate output: Y = 3A · 3B. Drives ±24mA.
9	3A	input	Channel 3, Input A. Logic input to gate 3; TTL-compatible, accepts 0V to 5.5V.
10	3B	input	Channel 3, Input B. Logic input to gate 3; TTL-compatible, accepts 0V to 5.5V.
11	4Y	output	Channel 4, Output Y. AND-gate output: Y = 4A · 4B. Drives ±24mA.
12	4A	input	Channel 4, Input A. Logic input to gate 4; TTL-compatible, accepts 0V to 5.5V.
13	4B	input	Channel 4, Input B. Logic input to gate 4; TTL-compatible, accepts 0V to 5.5V.
14	VCC	power_in	Positive supply. 4.5V to 5.5V recommended operating range. Bypass with a 0.1µF ceramic capacitor to GND close to the pin.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74ACT08DRD
SN74ACT08DR
SN74ACT08DRDB
SN74ACT08DRDBR
SN74ACT08DRPW
SN74ACT08DRPWR
SN74ACT08DRN
SN74ACT08DRNS
SN74ACT08DRNSR
SN74ACT08DRBQA
SN74ACT08DRBQAR
SN74ACT08DRJ
SN74ACT08DRW
SN74ACT08DRFK

CAD (KiCad official)

Symbol: SN74ACT08DR
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
`sn74act08dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74act08dr-etched.step`	2.5 MB	You want the part with `SN74ACT08DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 630 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 49e34f3de1232be0, 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