MEMORY SYSTEM AND OPERATING METHOD OF CONTROLLER

摘要

PURPOSE: A memory system and an operating method of a controller reduce the size of the controller by controlling a NAND flash memory and a phase change memory using the same NAND interface. CONSTITUTION: A controller (1300) controls a NAND flash memory (1100) and a variable resistance memory (1200). The controller controls a program of the NAND flash memory and a program of the variable resistance memory according to the same command sequence. The NAND flash memory and the variable resistance memory each exchange multiple I/O signals, a chip enable signal, and a data strobe signal with the controller.