MC74HC165ADR2G from onsemi, in a SOIC-16. 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	SH/~LD	input	Serial Shift / Parallel Load control. When low, the eight parallel inputs (A-H) are asynchronously loaded into the register. When high, data shifts serially on the rising clock edge.
2	CLOCK	input	Clock input. Data is shifted on the rising edge when SH/~LD is high and Clock Inhibit is low. Combined with Clock Inhibit through an internal NOR.
3	E	input	Parallel data input E (bit 4). Loaded into the register when SH/~LD is low.
4	F	input	Parallel data input F (bit 5). Loaded into the register when SH/~LD is low.
5	G	input	Parallel data input G (bit 6). Loaded into the register when SH/~LD is low.
6	H	input	Parallel data input H (bit 7, last stage). Loaded when SH/~LD is low. Its state appears at QH after load.
7	~QH	output	Complementary serial data output of the last (H) stage. Inverse of QH.
8	GND	power_in	Ground reference (0 V).
9	QH	output	Serial data output of the last (H) stage. Follows the H flip-flop.
10	SA	input	Serial data input into the A (first) stage. Shifted in on rising clock edge when SH/~LD is high.
11	A	input	Parallel data input A (bit 0, first stage). Loaded when SH/~LD is low.
12	B	input	Parallel data input B (bit 1). Loaded when SH/~LD is low.
13	C	input	Parallel data input C (bit 2). Loaded when SH/~LD is low.
14	D	input	Parallel data input D (bit 3). Loaded when SH/~LD is low.
15	CLOCK_INHIBIT	input	Clock inhibit. Active-high; when high, clocking is disabled (register holds). The two clock sources (CLOCK and CLOCK INHIBIT) are combined via an internal 2-input NOR so either may serve as clock while the other acts as inhibit.
16	VCC	power_in	Positive supply, 2.0 V to 6.0 V. Bypass with a 100 nF ceramic to GND close to the pin.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-16
Category	Logic
Pins	16

Ordering variants

Same part, different packaging or reel option.

MC74HC165ADR2G
MC74HC165ADR2GDG
MC74HC165ADR2GN
MC74HC165ADR2GNG
MC74HC165ADR2GDT
MC74HC165ADR2GDTG
MC74HC165ADR2GDTR2G
MC74HC165ADR2GMN
MC74HC165ADR2GMNG

CAD (KiCad official)

Symbol: MC74HC165ADR2G
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`mc74hc165adr2g.step`	217 KB	You want the bare part, or you mark your own boards.
`mc74hc165adr2g-etched.step`	3.0 MB	You want the part with `MC74HC165ADR2G` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 744 faces against 267 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 (12 pp, sha256 9cdfdaa6f1619128, 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