System having memory devices of the same interface form

PURPOSE: A system including memory devices with common interface is provided, realize one memory controller for controlling all device in a memory by arranging same pin to operate same interface type. CONSTITUTION: A semiconductor memory device includes a random access memory chip, and a package having the random access memory chip. The package has a plurality of pins for electrically connecting the random access memory chip to an external device. The plurality of pins commonly provide memory functions to the random access memory and EEPROM, and the pins are arranged corresponding to the positions of pins of the EEPROM. The EEPROM includes a NAND type flash memory(170). The plurality of pins include input/output pins, power voltage pins, ground voltage pins, read enable pin, chip enable pin, command latch enable pin, address latch enable pin and write enable pin.