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A Low Power SDRAM Output Buffer with Minimized Power Line Noise and Feedthrough Current  

Ryu, Jae-Hui (Dept. of Electronic and Electrical Engineering, Hongik University)
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Abstract
A low power SDRAM output buffer with reduced power line noise and feedthrough current is presented. In multi I/O SDRAM output buffer, feedthrough current as well as the corresponding power dissipation are reduced utilizing proposed undershoot protection circuits. Ground bounce is minimized by the pull down driver using intelligent feedback scheme. Ground bounce noise is reduced by 66.3% and instantaneous and average power are reduced by 27.5% and 11.4%, respectively.
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