BUY CD4013B https://www.utsource.net/itm/p/1812251.html
CMOS DUAL D-TYPE FLIP-FLOP
Description: The CD4013B is a dual D-type flip-flop with separate data (D) and set (S) inputs and Q and Q outputs. Features: High noise immunity Low power consumption High speed performance High output drive capability Low input current Low quiescent current Outputs source/sink 24 mA Inputs compatible with various logic families Applications: Frequency dividers Pulse generation Counters Shift registers Data storage Signal routing (For reference only)