SN74LVC1G00DCKR from UMW, 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	A	input	Logic input A of the 2-input NAND gate. Accepts input voltages from 0V up to 5.5V regardless of VCC (5V-tolerant); high-level threshold is 0.65×VCC to 0.7×VCC depending on VCC rail.
2	B	input	Logic input B of the 2-input NAND gate. Accepts input voltages from 0V up to 5.5V regardless of VCC (5V-tolerant); shares the same input thresholds as pin A.
3	GND	power_in	Ground reference (0V) for the device. Continuous current through GND is rated ±100mA maximum.
4	Y	output	NAND gate output, Y = NOT(A AND B). Drives ±24mA at VCC = 3V and up to ±32mA at VCC = 4.5V; features Ioff partial-power-down and back-drive protection.
5	VCC	power_in	Positive supply voltage. Operating range is 1.65V to 5.5V (1.5V minimum for data retention); ICC is typically <10µA. Bypass with a local decoupling capacitor.

Key specifications

Parameter	Value
Manufacturer	UMW
Package	SC-70-5
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

SN74LVC1G00DCKR
SN74LVC1G00DCKRDCKT
SN74LVC1G00DCKRDBVR
SN74LVC1G00DCKRDBVT
SN74LVC1G00DCKRDRYR
SN74LVC1G00DCKRDSFR
SN74LVC1G00DCKRYZPR
SN74LVC1G00DCKRDPWR
SN74LVC1G00DCKRDRLR

CAD (KiCad official)

Symbol: SN74LVC1G00DCKR
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
`sn74lvc1g00dckr.step`	87 KB	You want the bare part, or you mark your own boards.
`sn74lvc1g00dckr-etched.step`	2.5 MB	You want the part with `SN74LVC1G00DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 624 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: UMW datasheet (50 pp, sha256 1264f79853e6119b, 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