Abstract
A 256-Mb DRAM with refresh-free-FIFO function for storage of moving pictures has been developed using 0.25-/spl mu/m CMOS technology. An operating current of 73 mA (reduction of 52% compared with a conventional circuit) has been achieved at 100 MHz based on introducing (1) a suppressed High(H)-level differential data transfer scheme which ran be operated at 0.6 V, (2) a new pre-charge method which features a 1/2 VCC precharge level in read cycle and VSS pre-charge level in write cycle, and (3) a divided operation of array circuits for serial access.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
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