74AHCT00D from Nexperia, in a SOP-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	Gate 1 data input A. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V. VIH ≥ 2.0 V, VIL ≤ 0.8 V at VCC = 4.5-5.5 V.
2	1B	input	Gate 1 data input B. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
3	1Y	output	Gate 1 NAND output. 1Y = NAND(1A, 1B). Drives ±8 mA at VCC = 4.5 V.
4	2A	input	Gate 2 data input A. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
5	2B	input	Gate 2 data input B. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
6	2Y	output	Gate 2 NAND output. 2Y = NAND(2A, 2B).
7	GND	power_in	Ground reference (0 V).
8	3Y	output	Gate 3 NAND output. 3Y = NAND(3A, 3B).
9	3A	input	Gate 3 data input A. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
10	3B	input	Gate 3 data input B. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
11	4Y	output	Gate 4 NAND output. 4Y = NAND(4A, 4B).
12	4A	input	Gate 4 data input A. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
13	4B	input	Gate 4 data input B. TTL-level, Schmitt-trigger, overvoltage tolerant to 5.5 V.
14	VCC	power_in	Positive supply voltage. Recommended 4.5-5.5 V for 74AHCT00 (TTL-input variant). Absolute max +7.0 V. Decouple with a local 100 nF to GND.

Key specifications

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

Ordering variants

74AHCT00DD
74AHCT00DPW
74AHCT00DBQ

CAD (KiCad official)

Symbol: 74AHCT00D
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOP-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`74ahct00d.step`	195 KB	You want the bare part, or you mark your own boards.
`74ahct00d-etched.step`	2.0 MB	You want the part with `74AHCT00D` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 511 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 (12 pp, sha256 8f6f3b15e8039940, 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