BUY CD4018BF https://www.utsource.net/itm/p/1371694.html
CMOS PRESETTABLE DIVIDE-BY-N COUNTER
Description: The CD4018BF is a CMOS 16-pin integrated circuit (IC) that contains a 4-bit counter, four D-type flip-flops, and an 8-input multiplexer.
Features:
4-bit counter
4 D-type flip-flops
8-input multiplexer
Low power consumption
High speed operation
Low noise
High reliability
Applications:
Digital clocks
Digital watches
Timers
Frequency dividers
Data acquisition systems
Automotive systems
Industrial control systems
(For reference only)