INTEGRATED CIRCUIT SYSTEM AND MEMORY SYSTEM

摘要

PURPOSE: A memory system is provided to increase yield by reducing the number of transmission lines transmitting data between memory chips. CONSTITUTION: A first memory chip (C1) includes an input-output unit. A second memory chip (C2) includes a first bank group including more than one banks and a second bank group including more than banks. A first transmission line transmits data inputted to the input-output unit to the first bank group or the second bank group. The first transmission line transmits data outputted from the first bank group or the second bank group to the input-output unit.