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2025-01-13 74ls90能否实现74ls160的功能 -
2025-01-13 用74ls90构成七进制计数器电路图 -
2025-01-13 用74ls192 -
2025-01-13 利用74ls161,74ls47,74ls00 -
2025-01-13 用74ls90设计十进制计数器电路图 -
2025-01-13 用74ls90实现8421码十进制计数器,要求画出逻辑图 -
2025-01-13 用74ls90和74ls161设计60进制 -
2025-01-13 用74ls90和74ls20构成7进制计数器 -
2025-01-13 74ls90功能描述 -
2025-01-13 74ls90实现5421 -
2025-01-13 74ls90能否实现74ls160的功能 -
2025-01-13 用74ls90构成七进制计数器电路图 -
2025-01-13 用74ls192 -
2025-01-13 利用74ls161,74ls47,74ls00 -
2025-01-13 用74ls90设计十进制计数器电路图 -
2025-01-13 用74ls90实现8421码十进制计数器,要求画出逻辑图 -
2025-01-13 用74ls90和74ls161设计60进制 -
2025-01-13 用74ls90和74ls20构成7进制计数器 -
2025-01-13 74ls90功能描述 -
2025-01-13 74ls90实现5421