Semiconductor memories
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United States of America Patent
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-
Mar 6, 2001
Grant Date -
N/A
app pub date -
Jun 21, 1999
filing date -
Jun 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A semiconductor memory, for example of the ROM type, has columns of memory cells with a bitline for each column connected to the cells of the column. The bitlines are connected via multiplexers to the input of a sense amplifier. Before column selection, the bitlines are held uncharged. When a column is selected, its bitline is connected to a charging voltage by a pull up transistor.
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