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:
Nov. 13, 2007
Filed:
Nov. 24, 2004
Keiji Tanaka, Takatsuki, JP;
Osamu Sarai, Takatsuki, JP;
Fuminori Tanemura, Takatsuki, JP;
Yoshito Date, Otsu, JP;
Jun Suzuki, Takatsuki, JP;
Keiji Tanaka, Takatsuki, JP;
Osamu Sarai, Takatsuki, JP;
Fuminori Tanemura, Takatsuki, JP;
Yoshito Date, Otsu, JP;
Jun Suzuki, Takatsuki, JP;
Matsushita Electric Industrial Co., Ltd, Osaka, JP;
Abstract
A level shift circuit having a latch function includes a precharging PMOS transistor MPwhich is turned on in a precharge period to interrupt a through current of an input stage, an NMOS transistor MNwhich inputs data and performs discharging in a data input period, and a transistor MPfor holding data after level shifting. Thus, each of the transistors can have a minimum configuration. Since the level shift circuit has a latch function, it is possible to omit a circuit for latching input data, thereby reducing a circuit area.