TC74HC7240AP(F),
TC74HC7244AF(F),
TC74HC7244AP(F),
TC74HC7266AP(F),
TC74HC7292AF(F),
TC74HC7292AP(F),计数器 IC PROGRAMABLE DIVIDER TIMER
TC74HC74AF(F),
TC74HC74AFN(ELP),IC FLIP-FLOP DUAL D-TYPE 14-SOL
