MC74HC74ADR2G from onsemi, 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	RESET1	input	Asynchronous active-low reset for flip-flop 1. When low, forces Q1 low and Q1̄ high independent of clock.
2	DATA1	input	D-input for flip-flop 1. Sampled on the rising edge of CLOCK1 and transferred to Q1.
3	CLOCK1	input	Clock input for flip-flop 1. Rising edge transfers DATA1 to Q1. Max clock frequency 35 MHz at Vcc=6 V.
4	SET1	input	Asynchronous active-low set for flip-flop 1. When low, forces Q1 high and Q1̄ low independent of clock.
5	Q1	output	True (non-inverted) output of flip-flop 1. Drives 10 LSTTL loads.
6	~Q1	output	Complementary (inverted) output of flip-flop 1.
7	GND	power_in	Ground reference (0 V).
8	~Q2	output	Complementary (inverted) output of flip-flop 2.
9	Q2	output	True (non-inverted) output of flip-flop 2. Drives 10 LSTTL loads.
10	SET2	input	Asynchronous active-low set for flip-flop 2. When low, forces Q2 high and Q2̄ low independent of clock.
11	CLOCK2	input	Clock input for flip-flop 2. Rising edge transfers DATA2 to Q2.
12	DATA2	input	D-input for flip-flop 2. Sampled on the rising edge of CLOCK2 and transferred to Q2.
13	RESET2	input	Asynchronous active-low reset for flip-flop 2. When low, forces Q2 low and Q2̄ high independent of clock.
14	VCC	power_in	Positive supply. 2.0 V to 6.0 V for HC; 4.5 V to 5.5 V for HCT variant. Absolute max 6.5 V.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-14
Category	Logic
Pins	14

Ordering variants

Same part, different packaging or reel option.

MC74HC74ADR2G
MC74HC74ADR2GDG
MC74HC74ADR2GD
MC74HC74ADR2GDTR2G
MC74HC74ADR2GDTG

CAD (KiCad official)

Symbol: MC74HC74ADR2G
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc74hc74adr2g.step`	195 KB	You want the bare part, or you mark your own boards.
`mc74hc74adr2g-etched.step`	2.5 MB	You want the part with `MC74HC74ADR2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 641 faces against 237 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: onsemi datasheet (13 pp, sha256 39ae893cd4838f9c, 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