74HC02D from Nexperia, 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	Data output of gate 1 (NOR of 1A and 1B). CMOS push-pull output, can drive IO up to -5.2 mA (source) / 5.2 mA (sink) at VCC = 6.0 V.
2	1A	input	Data input A of gate 1. CMOS logic input with clamp diodes; input voltage 0 to VCC recommended, VIH >= 3.15 V at VCC = 4.5 V (74HC02).
3	1B	input	Data input B of gate 1. CMOS logic input with clamp diodes; input voltage 0 to VCC recommended.
4	2Y	output	Data output of gate 2 (NOR of 2A and 2B). CMOS push-pull output.
5	2A	input	Data input A of gate 2. CMOS logic input with clamp diodes.
6	2B	input	Data input B of gate 2. CMOS logic input with clamp diodes.
7	GND	power_in	Ground reference (0 V).
8	3A	input	Data input A of gate 3. CMOS logic input with clamp diodes.
9	3B	input	Data input B of gate 3. CMOS logic input with clamp diodes.
10	3Y	output	Data output of gate 3 (NOR of 3A and 3B). CMOS push-pull output.
11	4A	input	Data input A of gate 4. CMOS logic input with clamp diodes.
12	4B	input	Data input B of gate 4. CMOS logic input with clamp diodes.
13	4Y	output	Data output of gate 4 (NOR of 4A and 4B). CMOS push-pull output.
14	VCC	power_in	Positive supply voltage. Operating range 2.0 V to 6.0 V (74HC02); absolute max +7 V.

Key specifications

Parameter	Value
Manufacturer	Nexperia
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

74HC02DD
74HC02DPW
74HC02DBQ
74HC02DBZ

CAD (KiCad official)

Symbol: 74HC02D
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
`74hc02d.step`	195 KB	You want the bare part, or you mark your own boards.
`74hc02d-etched.step`	1.8 MB	You want the part with `74HC02D` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 456 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: Nexperia datasheet (14 pp, sha256 2773ea732403ff2a, 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