BUY HCF4013M013TR https://www.utsource.net/itm/p/11202954.html
IC FF D-TYPE DUAL 1BIT 14SO
Description: Quad 2-Input NAND Schmitt Trigger Features: - Low power Schottky technology - High noise immunity - High input impedance - Low input current - Outputs source/sink up to 20 mA - TTL compatible inputs - Outputs can be wired AND or OR Applications: - Switch debouncing - Pulse generation - Clock generation - Sequential timing - Signal gating - Pulse width modulation - Frequency division (For reference only)