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:
Apr. 22, 2008
Filed:
Mar. 31, 2006
Masaru Yano, Kawasaki, JP;
Hideki Arakawa, Kawasaki, JP;
Mototada Sakashita, Kawasaki, JP;
Spansion LLC, Sunnyvale, CA (US);
Abstract
A semiconductor device () includes a non-volatile memory cell array (), a write/read circuit () writing data into and reading data from the non-volatile memory cell array (), a data input/output circuit (), and a volatile memory cell array () including a first latch circuit () that is connected to the write/read circuit () and latches first data, and a second latch circuit () that is connected to the data input/output circuit () and latches second data. The device () may further include an inverter circuit () that inverts the first data in accordance with the number of bits to be actually written among the first data, and a control circuit () that causes the second data to be latched in the second latch circuit () while the first data is being written into the non-volatile memory cell array (). This semiconductor device () has a shorter writing time and a smaller circuit area.