DYNAMIC RANDOM ACCESS MEMORY

PROBLEM TO BE SOLVED: To optimize a read-out time and to obtain a DRAM having no waste such as duplicated access or the like. SOLUTION: This memory is provided with column selecting switches 5 connected to bit lines (BL) of a memory cell 1, a column decoder 6 turning on in order the column selecting...

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Bibliographic Details
Main Author ICHIGUCHI TETSUICHIRO
Format Patent
LanguageEnglish
Published 27.06.2003
Edition7
Subjects
INFORMATION STORAGE
PHYSICS
STATIC STORES
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Summary:PROBLEM TO BE SOLVED: To optimize a read-out time and to obtain a DRAM having no waste such as duplicated access or the like. SOLUTION: This memory is provided with column selecting switches 5 connected to bit lines (BL) of a memory cell 1, a column decoder 6 turning on in order the column selecting switches 5 excluding for the last column (255) based on a supplied column address, an output amplifier 9 connected to the column selecting switch 5, an output amplifier 10 connected to the bit line of the memory cell 1 of the last column (255) and operated in a pre-charge period, and a selector 11 selecting output data of the output amplifier 9 at the time of normal mode and selecting output data of the output amplifier 10 at the time of picture processing mode. COPYRIGHT: (C)2003,JPO
Bibliography:Application Number: JP20010376214