Patent ID: 6046611
Filing Date: 2000-04-04
Classification: H03K,H04L

Abstract:
A semiconductor circuit device, comprising:a driving circuit generating a first signal;a first signal line transferring said first signal;a delay circuit connected to said first signal line, said delay circuit delaying said first signal by a predetermined time to output a second signal;a second signal line transferring said second signal; anda differential amplifier circuit connected to said first and second signal lines as input signal lines;wherein said predetermined time is longer than a time needed for a level change of said first signal from a low power-supply potential to a higher potential by a first threshold voltage;said first threshold voltage is lower than an intermediate potential between said low power-supply potential and a high power-supply potential;said differential amplifier circuit outputs an output signal of said low power-supply potential when both said first and second signals are of said low power-supply potential;said differential amplifier circuit changes a level of said output signal from said low power-supply potential to said high power-supply potential when said first signal rises from said low power-supply potential by said first threshold voltage to reach said higher potential; andsaid differential amplifier circuit continues outputting said output signal of said high power-supply potential when both said first and second signals are of said high power-supply potential.