Specification	SN74AS20D

Current - Output High, Low [custom]	20 mA
Current - Output High, Low [custom]	2 mA
Input Logic Level - Low	0.8 V
Logic Type	NAND Gate
Max Propagation Delay @ V, Max CL	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

SN74AS20 Series

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

Part	Operating Temperature [Max]	Operating Temperature [Min]	Logic Type	Max Propagation Delay @ V, Max CL	Number of Circuits	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply [Min]	Voltage - Supply [Max]	Number of Inputs	Current - Output High, Low [custom]	Current - Output High, Low [custom]	Mounting Type	Input Logic Level - Low
Texas Instruments SN74AS20N	70 °C	0 °C	NAND Gate	5 ns	2	14-DIP	7.62 mm	0.3 "	4.5 V	5.5 V	4	20 mA	2 mA	Through Hole	0.8 V
Texas Instruments SN74AS20D	70 °C	0 °C	NAND Gate	5 ns	2	14-SOIC	3.9 mm	0.154 in	4.5 V	5.5 V	4	20 mA	2 mA	Surface Mount	0.8 V
Texas Instruments SN74AS20DRG4	70 °C	0 °C	NAND Gate	5 ns	2	14-SOIC	3.9 mm	0.154 in	4.5 V	5.5 V	4	20 mA	2 mA	Surface Mount	0.8 V
Texas Instruments SN74AS20DB
Texas Instruments SN74AS20DR	70 °C	0 °C	NAND Gate	5 ns	2	14-SOIC	3.9 mm	0.154 in	4.5 V	5.5 V	4	20 mA	2 mA	Surface Mount	0.8 V

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	$ 1.89
		10	$ 1.69
		50	$ 1.60
		100	$ 1.39
		250	$ 1.32
		500	$ 1.25
Texas Instruments	TUBE	1	$ 2.33
		100	$ 2.04
		250	$ 1.43
		1000	$ 1.15

Description

General part information

SN74AS20 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