SN74LVC1GU04DCKR 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.
2	A	input	Inverter logic input. Accepts input voltages up to 5.5 V regardless of VCC. VIH = 0.75 x VCC, VIL = 0.25 x VCC. Unused inputs must be tied to VCC or GND.
3	GND	power_in	Ground reference (0 V) for logic and supply.
4	Y	output	Unbuffered inverter output, Y = /A. Drives up to ±24 mA at VCC = 3.3 V (±32 mA at 4.5 V). CMOS rail-to-rail swing between GND and VCC.
5	VCC	power_in	Positive supply, 1.65 V to 5.5 V recommended (6.5 V absolute max). Decouple with a local 100 nF ceramic capacitor to GND.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74LVC1GU04DCKR
SN74LVC1GU04DCKRDCKT
SN74LVC1GU04DCKRDBV
SN74LVC1GU04DCKRDBVR
SN74LVC1GU04DCKRDBVT
SN74LVC1GU04DCKRDRL
SN74LVC1GU04DCKRDRLR
SN74LVC1GU04DCKRDPW
SN74LVC1GU04DCKRDPWR
SN74LVC1GU04DCKRDRY
SN74LVC1GU04DCKRDRYR
SN74LVC1GU04DCKRDSF
SN74LVC1GU04DCKRDSFR
SN74LVC1GU04DCKRYZV
SN74LVC1GU04DCKRYZVR
SN74LVC1GU04DCKRYZP
SN74LVC1GU04DCKRYZPR

CAD (KiCad official)

Symbol: SN74LVC1GU04DCKR
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
`sn74lvc1gu04dckr.step`	87 KB	You want the bare part, or you mark your own boards.
`sn74lvc1gu04dckr-etched.step`	2.6 MB	You want the part with `SN74LVC1GU04DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 648 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 (49 pp, sha256 b8e933ffa762c032, 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