BUY SNJ54LS161AJ https://www.utsource.net/itm/p/1538267.html
54LS161A SYNCHRONOUS 4-BIT COUNT
Description: The SNJ54LS161AJ is a 16-pin CMOS Synchronous 4-Bit Binary Counter with Dual Clock. Features: High Speed: tpd = 8.3ns (typ) at VDD = 5V Low Power Dissipation: ICC = 4μA (max) at Ta = 25°C High Noise Immunity Characteristic of CMOS Devices Synchronous Counting and Loading Count Enable and Count Clear for Synchronous Operation Asynchronous Master Reset Outputs Source/Sink 24mA Applications: Frequency Division Clock Distribution Pulse Generation Data Communication Timing and Sequencing Circuits (For reference only)