Specification	SN74ALS20AD

Current - Output High, Low [custom]	400 µA
Current - Output High, Low [custom]	8 mA
Input Logic Level - Low	0.8 V
Logic Type	NAND Gate
Max Propagation Delay @ V, Max CL	12.5 ns
Mounting Type	Surface Mount
Number of Circuits	2
Number of Inputs	4
Operating Temperature [Max]	70 °C
Operating Temperature [Min]	0 °C
Package / Case	14-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Voltage - Supply [Max]	5.5 V
Voltage - Supply [Min]	4.5 V

SN74ALS20A Series

2-ch, 4-input, 4.5-V to 5.5-V bipolar NAND gates

Part	Number of Inputs	Voltage - Supply [Min]	Voltage - Supply [Max]	Logic Type	Mounting Type	Input Logic Level - Low	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Package / Case	Package / Case [y]	Package / Case [x]	Max Propagation Delay @ V, Max CL	Operating Temperature [Max]	Number of Circuits	Supplier Device Package	Package / Case	Package / Case
Texas Instruments SN74ALS20AN	4	4.5 V	5.5 V	NAND Gate	Through Hole	0.8 V	400 µA	8 mA	14-DIP	7.62 mm	0.3 "	12.5 ns	70 °C	2
Texas Instruments SN74ALS20ANSR	4	4.5 V	5.5 V	NAND Gate	Surface Mount	0.8 V	400 µA	8 mA	14-SOIC	5.3 mm	0.209 "	12.5 ns	70 °C	2	14-SO
Texas Instruments SN74ALS20ADBR	4	4.5 V	5.5 V	NAND Gate	Surface Mount	0.8 V	400 µA	8 mA	14-SSOP			12.5 ns	70 °C	2	14-SSOP	5.3 mm	0.209 "
Texas Instruments SN74ALS20ADR	4	4.5 V	5.5 V	NAND Gate	Surface Mount	0.8 V	400 µA	8 mA	14-SOIC	3.9 mm	0.154 in	12.5 ns	70 °C	2
Texas Instruments SN74ALS20AD	4	4.5 V	5.5 V	NAND Gate	Surface Mount	0.8 V	400 µA	8 mA	14-SOIC	3.9 mm	0.154 in	12.5 ns	70 °C	2

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 2.34
		10	$ 1.50
		25	$ 1.29
Texas Instruments	TUBE	1	$ 1.22
		100	$ 0.94
		250	$ 0.69
		1000	$ 0.49

Description

General part information

SN74ALS20A Series

These devices contain two independent 4-input positive-NAND gates. They perform the Boolean functionsor\ in positive logic.

The SN54ALS20A and SN54AS20 are characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ALS20A and SN74AS20 are characterized for operation from 0°C to 70°C.

These devices contain two independent 4-input positive-NAND gates. They perform the Boolean functionsor\ in positive logic.

Documents

Technical documentation and resources

Dual 4-Input Positive-NAND Gates datasheet (Rev. B)

Data sheet