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:
Feb. 14, 2012
Filed:
Apr. 12, 2010
Tao Peng, Santa Clara, CA (US);
Hsiao Hui Chen, Milpitas, CA (US);
Tao Peng, Santa Clara, CA (US);
Hsiao Hui Chen, Milpitas, CA (US);
Xilinx, Inc., San Jose, CA (US);
Abstract
A static random access memory (SRAM) can include a plurality of columns forming a memory array, wherein each column comprises a plurality of memory cells coupled to bitlines and wordlines, and a write replica circuit generating a signal when data has been written to the write replica circuit. A wordline of the memory array is turned off responsive to the signal. The write replica circuit can include an additional column comprising at least one dual port dummy memory cell, and write detection circuitry coupled to the dual port dummy memory cell detecting when data has been written to the dual port dummy memory cell and responsively generating the signal. The signal generated by the write detection circuitry indicates a successful write operation to the dual port dummy memory cell.