BUY HCF4007UBE https://www.utsource.net/itm/p/1710413.html
NOR GATE
Description: The HCF4007UBE is a Quad 2-Input NAND Schmitt Trigger manufactured by STMicroelectronics. Features: - High noise immunity - Low power consumption - Wide supply voltage range - Low input current - Low input offset voltage - High speed Applications: - Signal conditioning - Pulse generation - Waveform shaping - Clock and timing circuits - Interface circuits - Memory circuits - Logic gating and level shifting (For reference only)