Blocked flash write in dynamic RAM devices

Static information storage and retrieval – Addressing – Particular decoder or driver circuit

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

36523003, 365900, G11C 800

Patent

active

053196066

ABSTRACT:
A dynamic random access memory (DRAM) device that is selectively operable in a normal write mode, in a block write mode, or in a blocked flash write mode in accordance with a mode select signal. In the preferred embodiment, each column of a 512.times.512 DRAM is divided into eight superblocks of 64 columns, each superblock being in turn divided into eight blocks of 8 columns each. An address decoder decodes the most significant column address bits A8-A6 to provide a group select signal specifying a 64-bit superblock, the next most significant column address bits A5-A3 to provide a block select signal specifying a 8-bit block, and the least significant column address bits A2-A0 to provide a cell select signal specifying a particular column. In the normal write mode, data is written to the specified column in the specified block in the specified superblock. In the block write mode, the same data is simultaneously written to selected columns in the specified block in the specified superblock. In the blocked flash write mode, the same data is simultaneously written to selected blocks in the specified superblock. An 8-bit data input line (D7-D0) is used to provide bits that select columns in the block write mode or blocks in the blocked flash write mode.

REFERENCES:
patent: 500310 (1991-03-01), Kamisaki
patent: 3898632 (1975-08-01), Spencer, Jr.
patent: 4727363 (1988-02-01), Ishii
patent: 4807189 (1989-02-01), Pinkham et al.
patent: 4823302 (1989-04-01), Christopher
patent: 4945495 (1990-07-01), Ueda
patent: 4958326 (1990-09-01), Sakurai
patent: 4961171 (1990-10-01), Pinkham et al.
patent: 5029141 (1991-07-01), Yoshimoto et al.
patent: 5046049 (1991-09-01), Choi et al.
patent: 5065364 (1991-11-01), Atwood et al.
patent: 5134589 (1992-07-01), Hamano

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

Blocked flash write in dynamic RAM devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Blocked flash write in dynamic RAM devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blocked flash write in dynamic RAM devices will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-798863

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