BUY CD4520 https://www.utsource.net/itm/p/11565249.html

Package Type: DIP Number of Pins: N/A Description: The CD4520 is a dual 4-bit binary ripple counter with a clock and reset inputs. It is a CMOS device with high noise immunity and low power consumption. Features: High noise immunity Low power consumption Dual 4-bit binary ripple counter Clock and reset inputs CMOS device Applications: Frequency division Timing Pulse generation Frequency measurement Pulse width modulation (For reference only)