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:
Jan. 06, 2009
Filed:
Feb. 16, 2005
Kinji Mitani, Higashimurayama, JP;
Shigemasa Shiota, Tachikawa, JP;
Hiroyuki Goto, Higashimurayama, JP;
Hirofumi Shibuya, Matsuda, JP;
Fumio Hara, Higashikurume, JP;
Kinji Mitani, Higashimurayama, JP;
Shigemasa Shiota, Tachikawa, JP;
Hiroyuki Goto, Higashimurayama, JP;
Hirofumi Shibuya, Matsuda, JP;
Fumio Hara, Higashikurume, JP;
Renesas Technology Corp., Tokyo, JP;
Abstract
Production cost for a semiconductor data storage apparatus is significantly reduced by using the same controller to support an external analog module and an internal analog module. In a data processing system, a controller is provided with switching elements composed of fuses. Switching between the external analog module composed of an external power supply circuit, an external power supply monitor circuit, and a clock generator element and the internal analog module composed of an internal power supply circuit, an internal power supply monitor circuit, and a self-excited oscillator circuit is performed by arbitrarily disconnecting the fuses. For example, when an internal power supply voltage Vddgenerated by the external power supply monitor circuit is supplied to the controller or the like, the fuse is disconnected. Thus, measures can be taken in accordance with a purpose by, e.g., selecting the external analog module when an interleave operation is used.