Video random access memory having a split register and a multiplexer
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United States of America Patent
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Dec 14, 1993
Grant Date -
N/A
app pub date -
Aug 6, 1990
filing date -
Aug 6, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A video random access memory includes memory cells arranged in rows and columns. The columns of memory cells are divided into first and second portions, and the cells of each row of the first portion of memory are interleaved by address with the cells of the same row of the second portion of memory. A first half of a serial register includes a plurality of storage elements that are interleaved by address with a plurality of storage elements of a second half of the serial register. Between the first and second portions of the memory cells, column leads and a multiplexer selectively couple data from either the first portion or the second portion of the columns of the memory cells to either the first half or the second half of the serial register.
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