SN74AHCT1G14DCKR from Texas Instruments, in a SOT-353. 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	NC	unconnected	No internal connection. May be left floating or tied to GND/VCC without affecting device operation.
2	A	input	Schmitt-trigger data input for the inverter. TTL-voltage compatible; positive-going threshold V_T+ ≈ 0.9-2.0 V and negative-going V_T- ≈ 0.5-1.6 V at VCC = 4.5 V, giving typical hysteresis of ~0.4 V. Input voltage range 0 to 5.5 V; input leakage ±1 µA max.
3	GND	power_in	Device ground reference (0 V).
4	Y	output	Inverted (Schmitt) data output, Y = /A. Push-pull CMOS output rated ±8 mA at VCC = 5 V (V_OH ≥ 3.94 V at I_OH = -8 mA; V_OL ≤ 0.36 V at I_OL = 8 mA). Continuous output current up to ±25 mA absolute max.
5	VCC	power_in	Positive supply pin. Recommended operating range 4.5 V to 5.5 V; absolute max 7 V. Supply current ICC ≤ 1 µA (typ) with static inputs. Decouple with a local 0.1 µF ceramic capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-353
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

SN74AHCT1G14DCKR
SN74AHCT1G14DCKRDCKT
SN74AHCT1G14DCKRDBVR
SN74AHCT1G14DCKRDBVT

CAD (KiCad official)

Symbol: SN74AHCT1G14DCKR
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SOT-353 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74ahct1g14dckr.step`	87 KB	You want the bare part, or you mark your own boards.
`sn74ahct1g14dckr-etched.step`	2.4 MB	You want the part with `SN74AHCT1G14DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 611 faces against 102 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 (25 pp, sha256 5657941b4f3173e4, 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