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:
Jul. 26, 2011
Filed:
Nov. 12, 2009
Mark Slamowitz, Chandler, AZ (US);
Douglas D. Smith, Mesa, AZ (US);
David W. Knebelsberger, Tempe, AZ (US);
Myron Buer, Gilbert, AZ (US);
Mark Slamowitz, Chandler, AZ (US);
Douglas D. Smith, Mesa, AZ (US);
David W. Knebelsberger, Tempe, AZ (US);
Myron Buer, Gilbert, AZ (US);
Broadcom Corporation, Irvine, CA (US);
Abstract
The present invention relates to a multi-port register file memory or SRAM including a plurality of storage elements and other circuitry that operate synchronously or asynchronously. The storage elements are arranged in rows and columns and store data. Two read port pairs are coupled to each of the storage elements and a differential sensing device or circuit. The read port is coupled to the storage elements in an isolated manner, enabling a plurality of cells to be arranged in such rows and columns. The sensing device is adapted to sense a small voltage swing. A column mux circuit is coupled to each column and the sensing device. Performance is not degraded unusually as the power supply voltage is reduced due to bus drop or inductive effects.