BUY CD4019BE https://www.utsource.net/itm/p/11242625.html

Description: Dual 4-Stage Static CMOS Shift Register Features: - High Speed Operation: tpd = 10 ns (typ) - Low Power Dissipation: ICC = 4 μA (max) - High Noise Immunity Characteristic of CMOS Devices - Outputs Source/Sink 24 mA - Input Clamp Diodes Limit High-Speed Termination Effects Applications: - Data Storage - Data Transfer - Data Acquisition - Data Processing - Digital Filtering - Digital Control Systems - Digital Signal Processing (For reference only)