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:
Aug. 12, 2008
Filed:
Nov. 01, 2004
Yasuhiko Maki, Kawasaki, JP;
Yasuhiko Maki, Kawasaki, JP;
Fujitsu Limited, Kawasaki, JP;
Abstract
In case that data are written in a flip-flop circuit by inverting the voltage to be supplied to a pair of write bit lines, the peak of the current waveform flowing in the pair of write bit lines is to be made gentler, whereby reduced power source noise and low power consumption should be achieved. To this end in a semiconductor device wherein flip-flop circuit for holding data, a memory cell including a transfer gate, a pair of write bit lines for writing data in the memory cell, are provided, in case that data are written in the flip-flop circuit by inverting the voltage to be supplied to the pair of write bit lines, the slew rate of the voltage to be supplied to the pair of write bit lines is made equal to predetermined value or less.