Simultaneous read and refresh of different rows in a dram

Static information storage and retrieval – Read/write circuit – Simultaneous operations

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

365222, 36523004, G11C 700

Patent

active

052914437

ABSTRACT:
A memory array configuration of memory cells that allows simultaneous read and refresh of the memory cells includes M rows and N columns of memory cells, each row being arranged into a top half-row of N/2 memory cells corresponding to each odd-numbered column and a bottom half-row of N/2 memory cells corresponding to each even-numbered column. Each memory cell in the top half-row has a write column node coupled to a respective write column line, a read column node coupled to a respective read column line, a write row node coupled to a respective first write row line, and a read row node coupled to a respective read row line. Each memory cell in the bottom half-row has a write column node coupled to a respective write column line, a read column node coupled to a respective read column line, a write row node coupled to a respective second write row line, and a read row node coupled to a respective read row line. A row of N/2 charge sensing amplifiers each has a first input coupled to an odd-numbered write column line and a second input coupled to a next even-numbered write column. A row of N current/voltage sensing amplifiers each has an input coupled to one of the read column lines and an output for providing a digital signal.

REFERENCES:
patent: 3846765 (1974-11-01), De Vries
patent: 4106108 (1978-08-01), Cislaghi et al.
patent: 4581720 (1986-04-01), Takemae et al.
patent: 4847809 (1989-07-01), Suzuki

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Simultaneous read and refresh of different rows in a dram does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Simultaneous read and refresh of different rows in a dram, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Simultaneous read and refresh of different rows in a dram will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-583964

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.