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:
Mar. 20, 2007
Filed:
Oct. 25, 2005
Alexander Andreev, San Jose, CA (US);
Sergei Gashkov, Moscow, RU;
Oleg B. Sedelev, Moscow, RU;
Andrey Nikitin, Moscow, RU;
Alexander Andreev, San Jose, CA (US);
Sergei Gashkov, Moscow, RU;
Oleg B. Sedelev, Moscow, RU;
Andrey Nikitin, Moscow, RU;
LSI Logic Corporation, Milpitas, CA (US);
Abstract
An RRAM flip-flop rcell memory of the type having a write address decoder, a read address decoder, a set of n flip flops, one AND gate associated with each flip flop in the set, a set of w OR gates where each of the w OR gates in the set has n inputs, the improvement comprising only one write address decoder, and replacing the read address decoder and the set of AND gates and the set of OR gates with no more than one multiplexor, thereby providing a reduction in a path length from an rcell memory input to an rcell memory output and thereby improving timing of the rcell memory, while reducing fanout size of the rcell. In a preferred embodiment, the multiplexor includes fewer than w OR gates, and fewer than n AND gates, and two decoders, which are commonly connected to outputs of the n flip flops.