SN74LVC74ADR from Texas Instruments, in a SOIC-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	~{1CLR}	input	Channel 1 clear input; pulling it low sets the 1Q output low.
2	1D	input	Channel 1 data input.
3	1CLK	input	Channel 1 clock input; the flip-flop is positive-edge triggered.
4	~{1PRE}	input	Channel 1 preset input; pulling it low sets the 1Q output high.
5	1Q	output	Channel 1 output.
6	~{1Q}	output	Channel 1 inverted output.
7	GND	power_in	Ground.
8	~{2Q}	output	Channel 2 inverted output.
9	2Q	output	Channel 2 output.
10	~{2PRE}	input	Channel 2 preset input; pulling it low sets the 2Q output high.
11	2CLK	input	Channel 2 clock input; the flip-flop is positive-edge triggered.
12	2D	input	Channel 2 data input.
13	~{2CLR}	input	Channel 2 clear input; pulling it low sets the 2Q output low.
14	VCC	power_in	Supply voltage; operating range is 1.65 V to 3.6 V for SN74LVC74A.

Key specifications

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

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Supply voltage	VCC	-0.5		6.5	V		4
Input voltage	VI	-0.5		6.5	V		4
Output voltage	VO	-0.5			V		4
Input clamp current	IIK	-50			mA	VI < 0	4
Output clamp current	IOK	-50			mA	VO < 0	4
Continuous output current	IO	-50		50	mA		4
Continuous current through VCC or GND		-100		100	mA		4
Storage temperature	Tstg	-65		150	°C		4
Supply voltage, operating (SN74LVC74A)	VCC	1.65		3.6	V	Operating	4
Supply voltage, data retention only	VCC	1.5			V	Data retention only	4
High-level input voltage	VIH	0.65			× VCC	VCC = 1.65 V to 1.95 V (SN74LVC74A)	4
High-level input voltage	VIH	1.7			V	VCC = 2.3 V to 2.7 V (SN74LVC74A)	4
High-level input voltage	VIH	2			V	VCC = 2.7 V to 3.6 V	4
Low-level input voltage	VIL			0.35	× VCC	VCC = 1.65 V to 1.95 V (SN74LVC74A)	4
Low-level input voltage	VIL			0.7	V	VCC = 2.3 V to 2.7 V (SN74LVC74A)	4
Low-level input voltage	VIL			0.8	V	VCC = 2.7 V to 3.6 V	4
Input voltage	VI	0		5.5	V		4
Output voltage	VO	0			V		4
High-level output current	IOH	-4			mA	VCC = 1.65 V (SN74LVC74A)	4
High-level output current	IOH	-8			mA	VCC = 2.3 V (SN74LVC74A)	4
High-level output current	IOH	-12			mA	VCC = 2.7 V	4
High-level output current	IOH	-24			mA	VCC = 3 V	4
Low-level output current	IOL			4	mA	VCC = 1.65 V (SN74LVC74A)	4
Low-level output current	IOL			8	mA	VCC = 2.3 V (SN74LVC74A)	4
Low-level output current	IOL			12	mA	VCC = 2.7 V	4
Low-level output current	IOL			24	mA	VCC = 3 V	4
Input transition rise or fall rate	Δt/Δv			10	ns/V		4
Operating free-air temperature (SN74LVC74A)	TA	-40		125	°C		5
High-level output voltage	VOH	1.2			V	IOH = -4 mA, VCC = 1.65 V, TA = -40°C to 125°C (SN74LVC74A only)	5
High-level output voltage	VOH	1.7			V	IOH = -8 mA, VCC = 2.3 V, TA = -40°C to 125°C (SN74LVC74A only)	5
High-level output voltage	VOH	2.2			V	IOH = -12 mA, VCC = 2.7 V	5
High-level output voltage	VOH	2.4			V	IOH = -12 mA, VCC = 3 V	5
Low-level output voltage	VOL			0.2	V	IOL = 100 µA, VCC = 1.65 V to 3.6 V, TA = -40°C to 125°C (SN74LVC74A only)	5
Low-level output voltage	VOL			0.45	V	IOL = 4 mA, VCC = 1.65 V, TA = -40°C to 125°C (SN74LVC74A only)	5
Low-level output voltage	VOL			0.7	V	IOL = 8 mA, VCC = 2.3 V, TA = -40°C to 125°C (SN74LVC74A only)	5
Low-level output voltage	VOL			0.4	V	IOL = 12 mA, VCC = 2.7 V	5
Low-level output voltage	VOL			0.55	V	IOL = 24 mA, VCC = 3 V	5
Input current	II	-5		5	µA	VI = 5.5 V or GND, VCC = 3.6 V	5
Supply current	ICC			10	µA	VI = VCC or GND, IO = 0, VCC = 3.6 V	5
Change in supply current	ΔICC			500	µA	One input at VCC, 0.6 V, other inputs at VCC or GND, VCC = 2.7 V to 3.6 V	5
Clock frequency	fclock	150			MHz	TA = -40°C to 85°C and VCC = 3.3 V ± 0.3 V	7
Clock frequency	fclock	100			MHz	TA = -40°C to 125°C, VCC = 3.3 V ± 0.3 V	7
Clock frequency	fclock	83			MHz	TA = -40°C to 125°C, VCC = 2.7 V	7
Pulse duration, CLK high or low	tw	3.3			ns	VCC = 2.7 V or 3.3 V	7
Pulse duration, PRE or CLR low	tw	3.3			ns	VCC = 2.7 V or 3.3 V	7
Setup time before CLK↑, Data	tsu	3			ns	TA = -40°C to 85°C and VCC = 3.3 V ± 0.3 V	7
Hold time, data after CLK↑	th	1			ns	VCC = 2.7 V or 3.3 V	7
Propagation delay time, CLK to Q or Q̅	tpd			6	ns	TA = -40°C to 125°C, VCC = 2.7 V	8
Propagation delay time, CLK to Q or Q̅	tpd			5.2	ns	TA = -40°C to 125°C, VCC = 3.3 V ± 0.3 V	8
Propagation delay time, PRE or CLR to Q or Q̅	tpd			6.4	ns	TA = -40°C to 125°C, VCC = 2.7 V	8
Propagation delay time, PRE or CLR to Q or Q̅	tpd			5.4	ns	TA = -40°C to 125°C, VCC = 3.3 V ± 0.3 V	8
Skew (time), output	tsk(o)			1	ns	TA = -40°C to 85°C and VCC = 3.3 V ± 0.3 V	8
Junction-to-ambient thermal resistance (D, SOIC)	RθJA		127.8		°C/W	D (SOIC) package	5
Junction-to-case (top) thermal resistance (D, SOIC)	RθJC(top)		54.8		°C/W	D (SOIC) package	5
Junction-to-board thermal resistance (D, SOIC)	RθJB		48		°C/W	D (SOIC) package	5
Junction-to-top characterization parameter (D, SOIC)	ψJT		20.3		°C/W	D (SOIC) package	5
Junction-to-board characterization parameter (D, SOIC)	ψJB		47.7		°C/W	D (SOIC) package	5
Input capacitance	Ci		5		pF	VI = VCC or GND, VCC = 3.3 V, TA = 25°C	6

CAD (KiCad official)

Symbol: SN74LVC74ADR
Footprint: Package_SO:SOIC-14_3.9x8.7mm_P1.27mm
3D model: SOIC-14 (KiCad packages3D, STEP)
3D model files: sn74lvc74adr-etched.step / sn74lvc74adr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); sn74lvc74adr.step / sn74lvc74adr.glb are the bare package body.

Provenance

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

Datasheet: Texas Instruments datasheet (43 pp, sha256 5ebad76badd3a17b, retrieved 2026-11-06, 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

SN74LVC74ADR

Changed since verified SN74LVC74ADR

Verification log 1 record

3D Model

Symbol & Footprint

Schematic Symbol

PCB Footprint

Datasheet

README