Circuit and method for tracking the start of a write to a memory

Details Circuit and method for tracking the start of a write to a memory Circuit and method for tracking the start of a write to a memory

1997-05-19

1998-09-15

Popek, Joseph A.

Static information storage and retrieval

Addressing

Sync/clocking

36518901, 365191, G11C 800

Patent

active

058089608

ABSTRACT:
A circuit and method for determining the exact time at which data begins to be written to a memory cell. A write sensing circuit is connected to a data input line. When data is presented on the data input line for writing to the memory cell, the write sensing circuit outputs a write start signal indicating that data is being presented to memory cells for writing. The actual start time of a write to a memory cell is therefore accurately timed based on the start of the write to the memory cell itself. This provides the advantage that the change in state of the data is directly sensed as the factor for measuring the start time of a write to a memory cell. The data can be sensed either directly from the bit lines or, alternatively, from a write data bus.

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