SN74HCT14DR 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 Schmitt-trigger input. TTL-voltage compatible; typical V(T+)=1.7 V, V(T-)=1.0 V at Vcc=5 V, hysteresis ~0.65 V.
2	1Y	output	Channel 1 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V; VOH ≥ 3.84 V (IOH=-4 mA), VOL ≤ 0.33 V (IOL=4 mA).
3	2A	input	Channel 2 Schmitt-trigger input. TTL-voltage compatible; typical V(T+)=1.7 V, V(T-)=1.0 V at Vcc=5 V.
4	2Y	output	Channel 2 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V.
5	3A	input	Channel 3 Schmitt-trigger input. TTL-voltage compatible.
6	3Y	output	Channel 3 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V.
7	GND	power_in	Ground reference (0 V). Common return for supply and signals.
8	4Y	output	Channel 4 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V.
9	4A	input	Channel 4 Schmitt-trigger input. TTL-voltage compatible.
10	5Y	output	Channel 5 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V.
11	5A	input	Channel 5 Schmitt-trigger input. TTL-voltage compatible.
12	6Y	output	Channel 6 inverter output. Y = /A. Drive ±4 mA at Vcc=5 V.
13	6A	input	Channel 6 Schmitt-trigger input. TTL-voltage compatible.
14	VCC	power_in	Positive supply voltage, 4.5 V to 5.5 V recommended (7 V absolute max). Decouple locally to GND with 100 nF.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74HCT14DR
SN74HCT14DRD
SN74HCT14DRDB
SN74HCT14DRDBR
SN74HCT14DRDGV
SN74HCT14DRDGVR
SN74HCT14DRN
SN74HCT14DRNE
SN74HCT14DRPW
SN74HCT14DRPWR
SN74HCT14DRFK
SN74HCT14DRW
SN74HCT14DRJ

CAD (KiCad official)

Symbol: SN74HCT14DR
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
`sn74hct14dr.step`	195 KB	You want the bare part, or you mark your own boards.
`sn74hct14dr-etched.step`	2.1 MB	You want the part with `SN74HCT14DR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 564 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 (34 pp, sha256 1c4cf5c87d8c8a22, 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