The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 21, 2002
Filed:
May. 15, 2001
Juei-Lung Chen, Hsinchu, TW;
Shih-Huang Huang, Hsinchu, TW;
United Microelectronics Corp., Hsinchu, TW;
Abstract
A memory refresh circuit is connected to a plurality of block memories via a plurality of word line drivers respectively connected to the block memories. The memory refresh circuit comprises a plurality of row address latches, a plurality of row address strobe monitors, and a row address counter. Each of the row address latches is respectively paired by electrical connection with one of the row address strobe monitors, and each pair of row address latches and row address strobe monitors is respectively connected to one of the block memories. The row address counter is connected to the row address latches to which it transmits a plurality of different row addresses. When a memory refresh signal is delivered to one of the row address strobe monitors, the corresponding row address latch latches the address to be refreshed to perform the refresh operation.