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. 04, 2003
Filed:
May. 04, 2001
Kou Sasaki, Tokyo, JP;
NEC Corporation, , JP;
Abstract
Input terminals “an”, “aw”, “as”, and “ae” having an identical function and output terminals “bn”, “bw”, “bs”, “be” having an identical function are arranged at the respective sides of, a macro cell . The input terminals “an”, “aw”, “as”, and “ae” are connected to the input terminals of a NOR circuit and an output from the NOR circuit is supplied to the input terminal “a” of an internal kernel circuit . The input terminal to be used is connected by a wire. The other input terminals not to be used are connected to a potential of logical 0 (ground potential). Output buffers , and are arranged for the output terminals “bn”, “bw”, “bs”, and “be”. A connection wire is provided only for the output terminal to be used. Thus, it is possible to increase the degree of freedom of the macro designing. By isolating the wires to the respective terminals from one another, it is possible to reduce the wire delay, thereby enabling to obtain a high-speed operation.