Method for arranging column decoders in a video RAM

摘要

A method of arranging column decoders in a video RAM, including the steps of arranging a memory cell array into a plurality of memory sub-cell arrays, and positioning a column decoder to one side of each memory sub-cell array between the memory sub-cell array and centrally located peripheral circuits including a predecoder. The column decoder includes a RAM column decoder section and a SAM column decoder section.