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TC74HC21AP/AF/AFN
D U A L 4 - l W P U T A N D GATE
T h e T C 7 4 H C 2 1 A is a h ig h sp ee d CM O S 4 - I N P U T A N D
G A T E fa b r ic a te d w ith s ilic o n g a te C-M O S te c h n o lo g y