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:
Jun. 09, 1998
Filed:
Oct. 24, 1996
Kiyoshi Fukushima, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In order to provide an input circuit for mode setting with a simple configuration sufficiently stable and without unnecessary current consumption, the input circuit of the invention, for outputting a control signal (MODE OUT) according to a status of a mode setting terminal (I1), comprises latch means (100) being reset with a rising edge of a reset signal (RES) to output the control signal (MODE OUT) of logic LOW and latching logic of the mode setting terminal (I1) with a falling edge of a delayed signal (RESD) of said reset signal (RES) for maintaining to output inverse or the same logic of said logic of the mode setting terminal (I1) latched, and pull-up or pull-down means (P1) becoming ON for pulling up or down the mode setting terminal (I1) to logic HIGH or LOW when the mode setting terminal (I1) is left open gated by logic LOW of the control signal (MODE OUT) and becoming OFF for cutting a current flowing through the mode setting terminal (I1) gated by logic HIGH of the control signal (MODE OUT).