SN74AHC1G02DBVR 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	A	input	Logic input A of the 2-input NOR gate. CMOS Schmitt-trigger input; VIH = 2.1 V at VCC = 3 V, VIL = 0.9 V at VCC = 3 V. Must not be left floating; tie to VCC or GND if unused.
2	B	input	Logic input B of the 2-input NOR gate. CMOS Schmitt-trigger input identical to input A. Must not be left floating; tie to VCC or GND if unused.
3	GND	power_in	Device ground reference (0 V). Connect to system ground with a low-impedance path and decouple VCC to this pin.
4	Y	output	NOR gate output, Y = NOT(A OR B). Push-pull CMOS output rated ±8 mA at VCC = 5 V (±4 mA at 3.3 V). Swings rail-to-rail between GND and VCC.
5	VCC	power_in	Positive supply voltage, 2 V to 5.5 V recommended (7 V absolute max). Bypass with a 0.1-µF ceramic capacitor to GND close to the pin. Quiescent supply current ICC ≤ 10 µA.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

SN74AHC1G02DBVR
SN74AHC1G02DBVRDBVT
SN74AHC1G02DBVRDCKR
SN74AHC1G02DBVRDCKT
SN74AHC1G02DBVRDRLR

CAD (KiCad official)

Symbol: SN74AHC1G02DBVR
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
`sn74ahc1g02dbvr.step`	85 KB	You want the bare part, or you mark your own boards.
`sn74ahc1g02dbvr-etched.step`	2.4 MB	You want the part with `SN74AHC1G02DBVR` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 599 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 99cfc4da49faf337, 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