Patent ID: 6282150
Filing Date: 2001-08-28
Classification: G11C

Abstract:
A semiconductor memory device for outputting data externally in response to the rise and fall of pulse signals of a reference clock, comprising:a first storage section for storing only data for rise-phases of the reference clock and outputting the data successively for read operations;a second storage section for storing only data for fall-phases of the reference clock and outputting the data successively for read operations; anddata output means disposed in a vicinity of a terminal means for outputting data to an external environment for receiving data from said first storage section and said second storage section, and forwarding said data to said terminal means according to said rise and fall of the reference clock; whereinwhichever storage section, said first storage section or said second storage section, that stores read data to be output first during a read operation is disposed closer to said data output means than the other storage section.