Static information storage and retrieval – Read/write circuit – Signals
Reexamination Certificate
2005-03-24
2008-03-04
Lam, David (Department: 2827)
Static information storage and retrieval
Read/write circuit
Signals
C365S190000, C365S189011, C365S189050
Reexamination Certificate
active
07339839
ABSTRACT:
A method and apparatus for improving time between row address latching and column address latching (tRCD) by allowing the pull-up of the IO lines during a READ burst to end upon the firing of a column access signal rather than waiting for the next clock signal of the READ operation. A latch is set during the active command in order to set a node voltage which allows the IO pull-up signal to end upon the firing of the column access signal. The invention allows improvement in tRCD parameter, and allows digit line pairs to separate without unwanted line sharing with the IO lines prior to reading of the first bit of a data burst. The result is a more accurate and error-free read of a first bit of data during a READ sequence.
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Cowles Timothy B
Protzman Brendan N
Lam David
Micro)n Technology, Inc.
Whyte Hirschboeck Dudek SC
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