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:
Mar. 15, 1988
Filed:
May. 05, 1986
Applicant:
Inventor:
Rajnish Maini, Chandler, AZ (US);
Assignee:
Motorola, Inc., Schaumburg, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365201 ; 365104 ;
Abstract
An improved programmable read only memory having a plurality of input pins and a plurality of memory elements is provided for testing the functionality and performance of the device without programming the memory. One of a combination of input signals applied to the input pins selects one of the memory elements for providing an output representative of the state of the memory element. A test circuit is coupled between the input pins and both the memory elements and a plurality of test memory elements for deselecting the memory elements and selecting the test memory elements.