HIGH-PERFORMANCE FLASH MEMORY DATA TRANSFER

摘要

A flash memory system including a flash memory device and a controller, operable according to an advanced data transfer mode is disclosed. The flash memory device is operable both in a "legacy" mode, in which read data is presented by the memory synchronously with each cycle of a read data strobe from the controller, and in which input data is latched by the memory synchronously with each cycle of a write data strobe from the controller. In the advanced mode, which can be initiated by the controller forwarding an initiation command to the memory, data is read at a higher frequency, for example at twice the frequency, of that available in the normal mode. In the advanced mode, the input data is presented by the controller at a higher frequency than is available in the normal mode. The voltage swing of the data and control signals is reduced from conventional standards, to reduce power consumption.