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TECHNICAL DATA
KK74HCT20A
Dual 4-Input NAND Gate
High-Performance Silicon-Gate CMOS
The KK74HCT20A is identical in pinout to the LS/ALS20. The KK74HCT20A 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 KK74HCT20AN Plastic KK74HCT20AD 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 H L
X = don’t care
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KK74HCT20A Datasheet
