BUY HEF4050BT https://www.utsource.net/itm/p/11246431.html

Description: The HEF4050BT is a quad 2-input NAND gate with Schmitt-trigger inputs. Features: Low power consumption High noise immunity Schmitt-trigger inputs Outputs can drive up to 10 LS-TTL loads Inputs accept voltages up to 7V Outputs in phase with inputs Outputs source/sink up to 20mA CMOS low power consumption ESD protection: HBM EIA/JESD22-A114-A exceeds 2000V Latch-up performance exceeds 100mA on all pins SO-14 package Applications: Logic gates Logic buffers Line receivers Clock generators Flip-flops Counters Data selectors/multiplexers Analog switches Signal routing Interface circuits (For reference only)