SL74HCT20 Dual 4-Input NAND Gate High-Performance Silicon-Gate CMOS The SL74HCT20 is identical in pinout to the LS/ALS20.
The SL74HCT20 may be used as a level converter for interfacing TTL or NMOS outputs to High-Speed CMOS inputs.
• TTL/NMOS-Compatible Input Levels • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 4.
5 to 5.
5 V • Low Input Current: 1.
0 µA • High Noise Immunity Characteristic of CMOS Devices ORDERING INFORMATION SL74HCT20N Plastic SL74HCT20D 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 ...

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