Embedded memory and embedded memory systems

Abstract

Providing an embedded memory and embedded memory systems. The embedded memory is a flash memory control unit, a host interface unit, those comprising at least one of the external flash memory interface unit. The embedded memory system is provided with the said embedded memory and at least one extension flash memory. The extension flash memory exchanges data via the external flash memory interface unit and the flash memory control unit. The embedded memory and embedded memory systems, can solve the poor scalability problems storage capacity due to the absence of external flash memory interface connected to the external flash memory in embedded memory. Further, it is possible to reduce storage costs by a combination of a plurality of types of NAND-type flash memory. .The