Read/write memory

Details Read/write memory Read/write memory

1992-10-22

1995-02-28

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Simultaneous operations

365201, 36518901, 365203, 36518905, 36518907, G11C 700

Patent

active

053943619

ABSTRACT:
Maximum operating speed is achieved in an array of memory cells by performing both read and write operations within a single memory cycle. As outgoing data are read from the memory cells, incoming data are stored immediately in those cells. Reduced power consumption is achieved in such memories by preventing the occurrance of a write operation if the value of a bit to be written to a memory cell is the same as the value of the bit currently stored in that memory cell. More particularly, the result of a read operation on a particular memory cell is compared with the data value to be written to that cell to determine whether a subsequent write operation is required. If the value in the cell equals the value to be written, the write operation is not performed.

REFERENCES:
patent: 4599708 (1986-07-01), Schuster
patent: 5023838 (1991-06-01), Herbert
patent: 5309395 (1994-05-01), Dickinson et al.

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