SN74LV1T04DCKR 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	Not internally connected. May be left floating or tied to GND/VCC per board design.
2	A	input	Logic input A to the inverter. Reduced CMOS input thresholds (V_IH min ~1.35 V at 3.3 V V_CC; V_IL max ~0.8 V) allow direct interfacing from lower-voltage logic. 5-V tolerant regardless of V_CC.
3	GND	power_in	Ground reference (0 V) for the device.
4	Y	output	Inverted logic output (Y = /A), referenced to V_CC. Push-pull CMOS drive: 8 mA at 5 V, 7 mA at 3.3 V, 5 mA at 2.5 V, 3 mA at 1.8 V.
5	VCC	power_in	Positive supply rail. Operating range 1.6 V to 5.5 V (recommended); absolute max 7.0 V. Sets the output high level and defines the down-translation target rail.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74LV1T04DCKR
SN74LV1T04DCKRDCKT
SN74LV1T04DCKRDBVR
SN74LV1T04DCKRDBVT

CAD (KiCad official)

Symbol: SN74LV1T04DCKR
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
`sn74lv1t04dckr.step`	87 KB	You want the bare part, or you mark your own boards.
`sn74lv1t04dckr-etched.step`	2.1 MB	You want the part with `SN74LV1T04DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 534 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 (26 pp, sha256 e13f07ae46199f2b, 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