MULTI-PORT MEMORY DEVICE HAVING SERIAL INPUT/OUTPUT INTERFACE

摘要

A multi-port memory device is provided to form a power layer in a package by embodying discretely a high speed serial input/output interface unit and a low speed DRAM(Dynamic Random Access Memory) unit and to secure the stability of data by separating data input/output portions from each other in the serial input/output interface unit. A multi-port memory device includes a first package ball out region and a second package ball out region. A plurality of first balls(110) are arranged within a first package ball out region(100) corresponding to a serial input/output interface unit. A plurality of second balls are arranged within the second package ball out region(200) corresponding to a DRAM unit. The first balls of the serial input/output interface unit are divided into serial data balls used for a serial data communication and serial power/ground balls for supplying a power voltage and a ground voltage to the serial data balls.