74x00

74x00 Logic Gate

Quad 2-Input NAND gate
Pins	14
No. of gates	4
Inputs per gate	2
Outputs per gate	1
Mounting Type	Through Hole, Surface Mount
Packages	DIP-14, SSOP-14, SOIC-14, CFP-14, LCCC-20, SO-14, SO-8

The 74x00 (and its military grade equivalent 54x00) is a Quad 2-Input NAND gate and one of the most important components in digital electronics. The chip provides four groups of 2 inputs (labelled A and B) and a single output (labelled Y) which outputs a HIGH (1) signal when either or both inputs are LOW (0), otherwise when both inputs are HIGH, the output becomes LOW.

7400 truth table

Input		Output
A	B	Y
0	0	1
0	1	1
1	0	1
1	1	0

Pin Functions

Pin					I/O	Description
Name	CDIP, CFP, SOIC, PDIP, SO, SSOP	SO	CFP	LCCC
1A	1	1	1	2	I	Gate 1 input
1B	2	2	2	3	I	Gate 1 input
1Y	3	3	3	4	O	Gate 1 output
2A	4	6	6	6	I	Gate 2 input
2B	5	7	7	8	I	Gate 2 input
2Y	6	5	5	9	O	Gate 2 output
3A	10	—N/a	9	13	I	Gate 3 input
3B	9	—N/a	10	14	I	Gate 3 input
3Y	8	—N/a	8	12	O	Gate 3 output
4A	13	—N/a	12	18	I	Gate 4 input
4B	12	—N/a	13	19	I	Gate 4 input
4Y	11	—N/a	14	16	O	Gate 4 output
GND	7	4	11	10	—N/a	Ground
NC	—N/a	—N/a	—N/a	1, 5, 7, 11, 15, 17	—N/a	No connect
VCC	14	8	4	20	—N/a	Power supply

Variant Specifications

AC (Advanced CMOS)

Absolute Maximum Ratings

			Min	Max	Unit
VCC	Supply voltage		-0.5	7	V
IIK	Input current clamp	VI < 0 V or VI > VCC	±20		mA
IOK	Output current clamp	VO < 0 V or VO > VCC	±20		mA
IO	Continuous output current	VO < 0 V or VO > VCC	±50		mA
	Continuous current through VCC or GND		±200		mA

Recommended Operating Conditions

			54AC00		74AC00		Unit
			Min	Max	Min	Max
VCC	Supply voltage		2	6	2	6	V
VIH	High-level input voltage	VCC = 3 V	2.1		2.1		V
		VCC = 4.5 V	3.15		1.15
		VCC = 5.5 V	3.85		1.85
VIL	Low-level input voltage	VCC = 3 V		0.9		0.9	V
		VCC = 4.5 V		1.35		1.35
		VCC = 5.5 V		1.65		1.65
VI	Input voltage		0	VCC	0	VCC	V
VO	Output voltage		0	VCC	0	VCC	V
IOH	High-level output current	VCC = 3 V		-12		-12	mA
		VCC = 4.5 V		-24		-24
		VCC = 5.5 V		-24		-24
IOL	Low-level output current	VCC = 3 V		12		12	mA
		VCC = 4.5 V		24		24
		VCC = 5.5 V		24		24
Δt/Δv	Input transition rise or fall rate		8		8		ns/V
TA	Operating free-air temperature		-55	125	-40	85	°C

HC (High-speed CMOS)

Absolute Maximum Ratings

			Min	Max	Unit
VCC	Supply voltage		-0.5	7	V
IIK	Input current clamp	VI < -0.5 V or VI > VCC + 0.5 V	±20		mA
IOK	Output current clamp	VO < -0.5 V or VO > VCC + 0.5 V	±20		mA
IO	Continuous output current	VO < -0.5 V or VO > VCC + 0.5 V	±25		mA
	Continuous current through VCC or GND		±50		mA

Recommended Operating Conditions

			Min	Nom	Max	Unit
VCC	Supply voltage		2	5	6	V
VIH	High-level input voltage	VCC = 2 V	1.5			V
		VCC = 4.5 V	3.15
		VCC = 6 V	4.2
VIL	Low-level input voltage	VCC = 2 V	0.5			V
		VCC = 4.5 V	1.35
		VCC = 6 V	1.8
VI	Input voltage		0		VCC	V
VO	Output voltage		0		VCC	V
Δt/Δv	Input transition rise or fall rate		500			ns/V
			111
			67
TA	Operating free-air temperature	74LS00	-55		125	°C
		54LS00	0		70

HCT (High-speed CMOS, TTL compatible)

Absolute Maximum Ratings

			Min	Max	Unit
VCC	Supply voltage		-0.5	7	V
IIK	Input current clamp	VI < -0.5 V or VI > VCC + 0.5 V	±20		mA
IOK	Output current clamp	VO < -0.5 V or VO > VCC + 0.5 V	±20		mA
IO	Continuous output current	VO < -0.5 V or VO > VCC + 0.5 V	±25		mA
	Continuous current through VCC or GND		±50		mA

Recommended Operating Conditions

			Min	Nom	Max	Unit
VCC	Supply voltage		4.5		5.5	V
VIH	High-level input voltage		2			V
VIL	Low-level input voltage		0.8			V
VI	Input voltage		0		VCC	V
VO	Output voltage		0		VCC	V
TA	Operating free-air temperature	74LS00	-55		125	°C
		54LS00	0		70

LS (High-speed TTL)

Absolute Maximum Ratings

	Min	Max	Unit
Supply voltage, VCC	7		V
Input voltage	7		V

Recommended Operating Conditions

			Min	Nom	Max	Unit
VCC	Supply voltage		4.5	5	5.5	V
VIH	High-level input voltage		2			V
VIL	Low-level input voltage	74LS00	0.8			V
		54LS00	0.7
IOH	High-level output current		-0.7			mA
IOL	Low-level output current	74LS00	8			mA
		54LS00	4
TA	Operating free-air temperature	74LS00	-55		125	°C
		54LS00	0		70