MULTI-CHIP SYSTEM

摘要

PURPOSE: A multi-chip system is provided to prevent the generation of malfunctions due to a peak current by preventing power voltages from being simultaneously supplied. CONSTITUTION: A plurality of chips(12_1 to 12_N) are prepared in a stacked structure. The chips have a slave-master relationship. A plurality of power voltages(Vcc1 to VccN) is inputted from the outside. The power voltages are supplied to the chips according to a pre-determined order using a power order controller. The power order controller delays at least one supply of the power voltages.