BUY CD4001UBM https://www.utsource.net/itm/p/4329805.html
CD4001UB quad 2-input NOR gate provides the system designer with direct implementation of the NOR function and supplements the existing family of CMOS gates. The CD4001UB types are supplied in 14-lead hermetic dual-in-line ceramic packages (F3A suffix), 14-lead dual-in-line plastic packages (E suffix), 14-lead small-outline packages (M, MT, M96, and NSR suffixes), and 14-lead thin shrink small-outline packages (PW and PWR suffixes).
Manufacturer: Texas Instruments Description: Quad 2-Input NOR Buffers Package: SOP-14 Features: Inputs Accept Voltages to 5.5 V Outputs Source/Sink 24 mA Low Input Current of 1 μA Max High Noise Immunity Characteristic of CMOS Devices Outputs Directly Interface to CMOS, NMOS, and TTL In Compliance with the JEDEC Standard JESD13B Applications: General Logic Clock Generation Data Transmission Data Processing Signal Buffering (For reference only)