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TECHNICAL DATA
Dual 4-Input AND Gate
High-Speed Silicon-Gate CMOS
The IN74AC21 is identical in pinout to the LS/ALS21, HC/HCT21. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LS/ALS outputs. • Outputs Directly Interface to CMOS, NMOS, and TTL • Operating Voltage Range: 2.0 to 6.0 V • Low Input Current: 1.0 µA; 0.1 µA @ 25°C • High Noise Immunity Characteristic of CMOS Devices • Outputs Source/Sink 24 mA
IN74AC21
ORDERING INFORMATION IN74AC21N Plastic IN74AC21D SOIC TA = -40° to 85° C for all packages
LOGIC DIAGRAM PIN ASSIGNMENT
NC = NO CONNECTION
PIN 14 =VCC PIN 7 = GND PINS 3,11 = NO CONNECTION A L X X X H
FUNCTION TABLE
Inputs B X L X X H C X X L X H D X X X L H Output Y L L L L H
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IN74AC21 Datasheet
