SL74HC20 Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS The SL74HC20 is identical in pinout to the LS/ALS20.
The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALSTTL outputs.
• Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.
0 to 6.
0 V • Low Input Current: 1.
0 µA • High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION SL74HC20N Plastic SL74HC20D SOIC TA = -55° to 125° C for all packages LOGIC DIAGRAM PIN ASSIGNMENT NC = NO CONNECTION PIN 14 =VCC PIN 7 = GND PINS 3,11 = NO CONNECTION FUNCTION TABLE Inputs A L X X X H B X L X X H C X X L X H D X X X L H Output Y H H H...

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