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. 28, 1983
Filed:
Dec. 22, 1980
Stephen H Woltz, Plantation, FL (US);
Motorola, Inc., Schaumburg, IL (US);
Abstract
An improved low-voltage, low-current, high-noise immunity I.sup.2 L interface is disclosed for control of associated I.sup.2 L logic circuitry, which interface does not require the inclusion of the heretofore conventional low-pass RC filter found in prior devices. As a result, considerable chip area previously occupied by such low-pass filters is now saved. Moreover, by isolating a portion of the interface switching circuitry from all other portions of the I.sup.2 L circuitry a substantial reduction in source current is effected. This objective is accomplished by fabricating at least one of the I.sup.2 L gates and its injector transistor in a separate epitaxial tub.