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A Study on the Method of Giving Hysteresis Characteristics to the Digital input port of Microprocessors  

Lee, Hyun-Chang (Dept. of Information and Telecommunication Engineering, Kongju National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SC / v.48, no.2, 2011 , pp. 56-63 More about this Journal
Abstract
This paper presents the method of giving hysteresis characteristics to the digital input port of microprocessors or micro-controllers and it's design procedures. And this paper shows the example of circuit design and the effect of this method by experiments. Presented method has advantages : By the additional one port and two resistors, input port can have hysteresis characteristics and hysteresis band is larger than TTL, CMOS schmitt trigger gates.
Keywords
schmitt; hysteresis; microprocessor; micro-controller; embedded;
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