Abstract: Provided are an embedded storage and an embedded storage system. The embedded storage includes a flash memory control unit, a host interface unit, and at least one off-chip flash memory interface unit. The embedded storage system includes the embedded memory and at least one expanded flash memory. The expanded flash memory performs data interaction with the flash memory control unit through the off-chip flash memory interface unit. The embedded storage and the embedded storage system can solve that because an embedded memory does not have an off-chip flash memory interface for connection to an off-chip flash memory, resulting in poor expandability for storage capacity of the embedded memory. A storage cost may further be lowered through a combination of various types of NAND flash memories.