Semiconductor integrated circuit with detection circuit for address signal change.

摘要

A semiconductor integrated circuit with a detection circuit for detecting an address signal change comprises a plurality of gate circuits (21, 22. 23), and a plurality of resettable delay circuits (24. 25). Each delay circuit (24. 25) is reset when an address signal (A) or an inverted address signal ( ) is at a predetermined polarity and level. Thus the circuit generates a pulse having a pulse width no shorter than a predetermined time interval upon each address change even if that change is only caused by noise.