A CMOS NAND gate or NOR gate can form a single-shot, this single-shot circuit extensively used to delay the pulse signal, stretching and shaping. Monostable door circuit, its m
ain principle is to use threshold gate input of gate level and join the RC element charge-discharge effect. NAND gates or logic gate can form a single-shot, but the difference of their respective trigger mode, the output logic levels are also different. Shown for the monostable flip-flop circuit with gates thereof.