TC74AC161,163P/F/FT TOSHIBA CMOS Digital Integrate.
Toshiba
TC74AC163FT - Synchronous Presettable 4-Bit Binary Counter
TC74AC161,163P/F/FT TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC161P, TC74AC161F, TC74AC161FT TC74AC163P, TC74AC163F, TC74AC163FT.