SN74LVC1G17DCKR from Texas Instruments, in a SC-70-5. 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. Leave floating or tie to a static level; not electrically bonded inside the SC70-5 (DCK) package.
2	A	input	Schmitt-trigger logic input. Positive-going threshold VT+ = 1.48-1.92 V at VCC = 3 V and negative-going threshold VT− = 0.89-1.2 V (hysteresis ~0.51-0.83 V). Input voltage range 0 to 5.5 V (5-V tolerant regardless of VCC). Do not leave floating in operation.
3	GND	power_in	Device ground / 0 V reference. Connect to system ground with a low-inductance path; decouple VCC to GND with a 0.1 µF ceramic close to the pin.
4	Y	output	CMOS push-pull buffer output, Y = A. Drive strength ±24 mA at VCC = 3 V (IOH/IOL, VOH ≥ 2.4 V / VOL ≤ 0.4 V). Propagation delay tpd ≈ 1.5 ns typical (max 4.6 ns) at 3.3 V with CL = 15 pF.
5	VCC	power_in	Positive supply, 1.65 V to 5.5 V operating (1.5 V data retention only). Absolute max 6.5 V. Decouple to GND with 0.1 µF at the pin; ICC ≤ 10 µA static.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-5
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

SN74LVC1G17DCKR
SN74LVC1G17DCKRDCKT
SN74LVC1G17DCKRDBVR
SN74LVC1G17DCKRDBVT
SN74LVC1G17DCKRDRLR
SN74LVC1G17DCKRDPWR
SN74LVC1G17DCKRDRYR
SN74LVC1G17DCKRDSFR
SN74LVC1G17DCKRYZPR
SN74LVC1G17DCKRYZVR

CAD (KiCad official)

Symbol: SN74LVC1G17DCKR
Footprint: Package_TO_SOT_SMD:SOT-353_SC-70-5
3D model: SC-70-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74lvc1g17dckr.step`	87 KB	You want the bare part, or you mark your own boards.
`sn74lvc1g17dckr-etched.step`	2.2 MB	You want the part with `SN74LVC1G17DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 556 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 (53 pp, sha256 2570a9354a9b24e7, 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