SN74AHC08DR from Texas Instruments, in a SOIC-14. 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	Gate 1 input A. CMOS logic input, VIH min 3.85 V at VCC = 5.5 V, VIL max 1.65 V at VCC = 5.5 V. Input current ±0.1 µA typ.
2	1B	input	Gate 1 input B. CMOS logic input paired with 1A to produce output 1Y = 1A · 1B.
3	1Y	output	Gate 1 output. Push-pull CMOS output, IOH/IOL = ±8 mA at VCC = 5 V ± 0.5 V. Y = 1A · 1B.
4	2A	input	Gate 2 input A. CMOS logic input.
5	2B	input	Gate 2 input B. CMOS logic input paired with 2A.
6	2Y	output	Gate 2 output. Y = 2A · 2B. Push-pull CMOS output.
7	GND	power_in	Ground reference (0 V) for the device.
8	3Y	output	Gate 3 output. Y = 3A · 3B. Push-pull CMOS output.
9	3A	input	Gate 3 input A. CMOS logic input.
10	3B	input	Gate 3 input B. CMOS logic input paired with 3A.
11	4Y	output	Gate 4 output. Y = 4A · 4B. Push-pull CMOS output.
12	4A	input	Gate 4 input A. CMOS logic input.
13	4B	input	Gate 4 input B. CMOS logic input paired with 4A.
14	VCC	power_in	Positive supply pin. Recommended operating range 2 V to 5.5 V; absolute maximum 7 V. Bypass with a local decoupling capacitor to GND.

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

SN74AHC08DRD
SN74AHC08DR
SN74AHC08DRDB
SN74AHC08DRDBR
SN74AHC08DRDGV
SN74AHC08DRDGVR
SN74AHC08DRN
SN74AHC08DRNS
SN74AHC08DRNSR
SN74AHC08DRPW
SN74AHC08DRPWR
SN74AHC08DRRGY
SN74AHC08DRRGYR
SN74AHC08DRBQA
SN74AHC08DRBQAR
SN74AHC08DRFK

CAD (KiCad official)

Symbol: SN74AHC08DR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (42 pp, sha256 7d0684a2780b050c, 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