SN74HCT02DR 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	1Y	output	Output Y of NOR gate 1. Y = NOT(1A OR 1B). Push-pull CMOS output, ±4 mA drive at Vcc = 5 V.
2	1A	input	Input A of NOR gate 1. TTL-compatible CMOS input (VIH = 2 V min, VIL = 0.8 V max at Vcc = 4.5-5.5 V). Input current 1 µA max.
3	1B	input	Input B of NOR gate 1. TTL-compatible CMOS input.
4	2Y	output	Output Y of NOR gate 2. Y = NOT(2A OR 2B).
5	2A	input	Input A of NOR gate 2. TTL-compatible CMOS input.
6	2B	input	Input B of NOR gate 2. TTL-compatible CMOS input.
7	GND	power_in	Ground reference (0 V). Common return for supply and signals.
8	3A	input	Input A of NOR gate 3. TTL-compatible CMOS input.
9	3B	input	Input B of NOR gate 3. TTL-compatible CMOS input.
10	3Y	output	Output Y of NOR gate 3. Y = NOT(3A OR 3B).
11	4A	input	Input A of NOR gate 4. TTL-compatible CMOS input.
12	4B	input	Input B of NOR gate 4. TTL-compatible CMOS input.
13	4Y	output	Output Y of NOR gate 4. Y = NOT(4A OR 4B).
14	VCC	power_in	Positive supply voltage. Recommended range 4.5 V to 5.5 V (nom 5 V). Decouple with a 0.1 µF ceramic capacitor 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.

SN74HCT02DRD
SN74HCT02DR
SN74HCT02DRN
SN74HCT02DRNSR
SN74HCT02DRNS
SN74HCT02DRPW
SN74HCT02DRPWR
SN74HCT02DRFK

CAD (KiCad official)

Symbol: SN74HCT02DR
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
`sn74hct02dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74hct02dr-etched.step`	2.4 MB	You want the part with `SN74HCT02DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 607 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 (23 pp, sha256 560059e5008535da, 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