BUY 74HC4520D https://www.utsource.net/itm/p/605892.html
Synchronous Up Counter
Description: The 74HC4520D is a dual 4-bit binary ripple counter with separate clocks.
Features:
High speed operation
Low power consumption
High noise immunity
Wide operating voltage range
Outputs can be connected directly to CMOS, NMOS, and TTL
Applications:
Frequency division
Clock and timing applications
Data transmission
Pulse generation
Signal processing
(For reference only)