Data memory and method of reading a data memory

Details Data memory and method of reading a data memory Data memory and method of reading a data memory

1992-10-13

1994-01-18

LaRoche, Eugene R.

Static information storage and retrieval

Read/write circuit

Multiplexing

36518907, 365203, 365207, 36523002, G11C 700

Patent

active

052804496

ABSTRACT:
A data memory and a method of reading a data memory are described. Data words (Word0, Word1, Word2, Word3) are stored within the data memory within an array of memory cells arranged in columns and rows. A particular data word within a memory cell is accessed by activating a complete row (2) to output the data words within all columns of that row and then selecting the data word from the appropriate column with a data word selection multiplexer (6). An amplifier (8) is used to reduce the time taken for data signals read from the array to reach readable values. In order to save power, the amplifier is disabled during a second and subsequent successive reading operations from a row that has already been activated. Precharging of a output lines is also disabled for second and subsequent successive readings from a row.

REFERENCES:
patent: 4870622 (1989-09-01), Aria et al.
patent: 4882709 (1989-11-01), Wyland
patent: 4975877 (1990-12-01), Bell
patent: 5091851 (1992-02-01), Shelton et al.
patent: 5093805 (1992-03-01), Singh

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