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Abstract

A memory is modified so that read and write data are transferred on both rising and falling edges of a timing signal, thereby essentially doubling the data transfer rate from memory. In one embodiment, a dual-edge extended data out (DE.sup.2 DO) memory includes modified and improved circuits and operating methods, as compared to a standard extended data out (EDO) memory, so that read and write data are transferred on both rising and falling edges of a timing signal. In a described embodiment, DE.sup.2 DO dynamic RAM (DRAM) reads and writes data on the rising and falling edges of a column address strobe (CAS) timing signal. By transferring data on both the rising and falling edges of the timing signal, the data transfer rate to and from the memory is effectively doubled.

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First Claim