SN74HC08DR 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. Standard high-impedance CMOS input to gate 1; VIH ≥ 3.15 V and VIL ≤ 1.35 V at VCC = 4.5 V. Must not be left floating.
2	1B	input	Channel 1, Input B. Standard CMOS input to gate 1; combined with 1A to produce 1Y = 1A · 1B.
3	1Y	output	Channel 1, Output Y. Balanced CMOS push-pull output; drives ±4 mA at VCC = 4.5 V while meeting VOH ≥ 3.84 V / VOL ≤ 0.33 V (-40 °C to 85 °C).
4	2A	input	Channel 2, Input A. Standard high-impedance CMOS input to gate 2.
5	2B	input	Channel 2, Input B. Standard CMOS input to gate 2; combined with 2A to produce 2Y = 2A · 2B.
6	2Y	output	Channel 2, Output Y. Balanced CMOS push-pull output for gate 2.
7	GND	power_in	Device ground reference. 0 V return for the logic core and output drivers; continuous current through VCC or GND is limited to ±50 mA (absolute max).
8	3Y	output	Channel 3, Output Y. Balanced CMOS push-pull output for gate 3.
9	3A	input	Channel 3, Input A. Standard high-impedance CMOS input to gate 3.
10	3B	input	Channel 3, Input B. Standard CMOS input to gate 3; combined with 3A to produce 3Y = 3A · 3B.
11	4Y	output	Channel 4, Output Y. Balanced CMOS push-pull output for gate 4.
12	4A	input	Channel 4, Input A. Standard high-impedance CMOS input to gate 4.
13	4B	input	Channel 4, Input B. Standard CMOS input to gate 4; combined with 4A to produce 4Y = 4A · 4B.
14	VCC	power_in	Positive supply. Operating range 2 V to 6 V (5 V nominal); absolute maximum 7 V. Bypass locally to GND with a ceramic capacitor.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74HC08DRD
SN74HC08DR
SN74HC08DRDB
SN74HC08DRDBR
SN74HC08DRN
SN74HC08DRNS
SN74HC08DRNSR
SN74HC08DRPW
SN74HC08DRPWR
SN74HC08DRFK
SN74HC08DRJ
SN74HC08DRW

CAD (KiCad official)

Symbol: SN74HC08DR
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
`sn74hc08dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74hc08dr-etched.step`	2.5 MB	You want the part with `SN74HC08DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 612 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 (38 pp, sha256 7c6d615e4510b91b, 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