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.

Date of Patent:
Jun. 01, 1982

Filed:

May. 23, 1979
Applicant:
Inventor:

Heinz B Maeder, Nyon, CH;

Assignee:

Motorola, Inc., Schaumburg, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K / ; H03K / ; H03K / ; H03K / ;
U.S. Cl.
CPC ...
307279 ; 307453 ; 307481 ; 307291 ;
Abstract

A MOS latch circuit is provided which has a fast response and is sensitive to low level input clock signals. The latch circuit has two load devices which are connected to a pair of cross-coupled transistors. A controllable current source is used to control the current flow through the cross-coupled pair of transistors. A first coupling transistor is connected between the input of the cross-coupled pair of transistors and a second controllable current source. A second coupling transistor is connected between a second input of the cross-coupled pair of transistors and to the second controllable current source. The first and second coupling transistors are enabled by input data signals to the latch circuit while the first and second controllable current sources are controlled by clock signals.


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