The TC4584B is the 6-circuit inverter having the Schmitt trigger function at the input terminal. That is, since the circuit threshold level voltages at the leading and trailing edges of input waveform are different (VP, VN), the TC4584B can be used in the broad range application including line receiver, waveform shaping circuit, astable multivibrator, monostable multivibrator, etc. In addition to ordinary inverter. Since the pins are compatible with the TC4069UB, the substitution is also possible.