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. 22, 1989
Filed:
Dec. 07, 1988
Applicant:
Inventors:
Assignee:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ; G11C / ; G11C / ;
U.S. Cl.
CPC ...
307530 ; 307468 ; 307585 ; 365104 ; 365196 ;
Abstract
A sense amplifier of the invention includes a PMOS transistor, the source and the drain of which are respectively connected to a power source and an EP-ROM as a signal source to be detected, and the gate and the drain of which are controlled to be at the same potential, a PMOS transistor connected to the power source and the EP-ROM in parallel with the PMOS transistor, and a ratio circuit in which the gate of one PMOS transistor and an NMOS transistor constituting a CMOS transistor is connected to the signal source. This arrangement of the invention enables a high speed operation.