BUY HCF4050BE https://www.utsource.net/itm/p/30852.html
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Description: HCF4050BE is a CMOS logic IC manufactured by STMicroelectronics. It is a 16-pin dual 4-input NAND Schmitt trigger.
Features:
Low power consumption
High noise immunity
High speed operation
Low input current
High input impedance
Low output saturation voltage
Applications:
Pulse generators
Timers
Frequency dividers
Monostable and astable multivibrators
Logic gates
Signal conditioning circuits
(For reference only)