SN74LVC2G34DCKR from Texas Instruments, in a SC-70-6. 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	1A	input	Buffer 1 input. CMOS logic input accepting 0 V to 5.5 V regardless of VCC (supports down-translation and live insertion). VIH/VIL scale with VCC (e.g. 0.65×VCC / 0.35×VCC at VCC=1.65-1.95 V).
2	GND	power_in	Ground reference (0 V) for the device. Continuous current through VCC or GND is limited to ±100 mA absolute maximum.
3	2A	input	Buffer 2 input. CMOS logic input accepting 0 V to 5.5 V regardless of VCC. Unused inputs must be tied to VCC or GND to avoid floating CMOS input current.
4	2Y	output	Buffer 2 output (Y = A). Push-pull CMOS output rated ±24 mA at VCC = 3 V (up to ±32 mA at VCC = 4.5 V). Placed in high-impedance / Ioff mode when VCC = 0 V.
5	VCC	power_in	Positive supply pin. Recommended operating range 1.65 V to 5.5 V (data-retention minimum 1.5 V); absolute maximum 6.5 V. Bypass locally with a 0.1 µF ceramic capacitor to GND.
6	1Y	output	Buffer 1 output (Y = A). Push-pull CMOS output rated ±24 mA at VCC = 3 V. Ioff circuitry disables the output when the device is powered down.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SC-70-6
Category	Logic
Pins	6

Ordering variants

Same part, different packaging or reel option.

SN74LVC2G34DCKR
SN74LVC2G34DCKRDCKT
SN74LVC2G34DCKRDBVR
SN74LVC2G34DCKRDBVT
SN74LVC2G34DCKRDRLR
SN74LVC2G34DCKRYZPR

CAD (KiCad official)

Symbol: SN74LVC2G34DCKR
Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
3D model: SC-70-6 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74lvc2g34dckr.step`	99 KB	You want the bare part, or you mark your own boards.
`sn74lvc2g34dckr-etched.step`	2.6 MB	You want the part with `SN74LVC2G34DCKR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 640 faces against 117 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 (30 pp, sha256 faa5171ab00e49fc, 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