SN74LVC1G34DBVR from Texas Instruments, in a SOT-23-5. 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 optionally tie to a static level; not electrically bonded to the die.
2	A	input	CMOS logic input to the non-inverting buffer (Y = A). Accepts 0 V to 5.5 V regardless of VCC (5-V tolerant); VIH/VIL scale with VCC (e.g. VIH ≥ 2 V, VIL ≤ 0.8 V at VCC = 3-3.6 V). Must not be left floating per SCBA004.
3	GND	power_in	Ground reference (0 V) for the device. Continuous current through VCC or GND is limited to ±100 mA (absolute max).
4	Y	output	CMOS push-pull buffer output (Y = A). Rated ±24 mA drive at VCC = 3 V (up to ±32 mA at 4.5 V); VOH ≥ 2.3 V at IOH = -24 mA and VOL ≤ 0.55 V at IOL = 24 mA (VCC = 3 V). Supports Ioff / partial power-down and back-drive protection.
5	VCC	power_in	Positive supply rail, 1.65 V to 5.5 V operating (1.5 V data-retention minimum). Absolute max 6.5 V. Bypass with a local ceramic capacitor close to the pin.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOT-23-5
Category	Logic
Pins	5

Ordering variants

Same part, different packaging or reel option.

SN74LVC1G34DBVR
SN74LVC1G34DBVRDBVT
SN74LVC1G34DBVRDCKR
SN74LVC1G34DBVRDCKT
SN74LVC1G34DBVRDRLR
SN74LVC1G34DBVRDPWR
SN74LVC1G34DBVRDRYR
SN74LVC1G34DBVRDSFR
SN74LVC1G34DBVRYZPR
SN74LVC1G34DBVRYFPR
SN74LVC1G34DBVRYZVR

CAD (KiCad official)

Symbol: SN74LVC1G34DBVR
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT-23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`sn74lvc1g34dbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`sn74lvc1g34dbvr-etched.step`	2.2 MB	You want the part with `SN74LVC1G34DBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 571 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 (48 pp, sha256 04a1b0ee3e81bf9b, retrieved 2026-08-17, tier: lcsc)
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