Let us discuss the application of flip flop as a key debounce eliminator.<\/p>\r\n
For interfacing keys to the digital systems, usually push button keys are used. These push button keys when pressed bounces a few times, closing and opening the contacts before proving a steady reading. Reading taken during bouncing period may be faulty. This problem is known as key debounce. The problem of key debounce is undesirable and it must be avoided.<\/p>\r\n
![\"Switch](\"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25162341\/osillo1-6.png?resize=256%2C271&ssl=1\")
Fig: Switch debouncer<\/p><\/div>\r\n
One way to avoid this is to use SR latch. The circuit used to avoid keybounce with SR latch is called a switch or contact debouncer<\/strong>. When key is at position A, the output of SR latch is logic 1, and when key is at position B, the output of SR latch is logic 0. It is important to note that, when key is in between A & B, SR inputs are 00 and hence output does not change, preventing debouncing of key output. In other words, we can say that the output does not change during transition period, eliminating key debounce.<\/p>\r\n <\/p>\r\n
<\/p>\r\n
<\/p>\r\n
AJAY DHEERAJ<\/p>\r\n
(Technical Content Developer)<\/p>\r\n
<\/p>","protected":false},"excerpt":{"rendered":"
Flip – flops are one of the most fundamental electronic components. These are used as one-bit storage elements, clock dividers, and also we can make counters, shift registers and storing registers by connecting the flip flops in particular sequences. These flip flops use feedback concept to create sequential logic where the previous state affect future […]<\/p>\n","protected":false},"author":4,"featured_media":4604,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":"","jetpack_publicize_message":"","jetpack_is_tweetstorm":false,"jetpack_publicize_feature_enabled":true},"categories":[21],"tags":[],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25161742\/osillo1-4.png?fit=581%2C256&ssl=1","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p9HmdS-1c4","jetpack_likes_enabled":true,"jetpack-related-posts":[{"id":4560,"url":"https:\/\/dcaclab.com\/blog\/t-flip-flop-explained-in-detail\/","url_meta":{"origin":4592,"position":0},"title":"T Flip Flop Explained in Detail","date":"December 19, 2019","format":false,"excerpt":"Flip - flops are one of the most fundamental electronic components. These are used as one-bit storage elements, clock dividers and also we can make counters, shift registers and storing registers by connecting the flip flops in particular sequences. These flip flops use feedback concept to create sequential logic where\u2026","rel":"","context":"In "General Electronics"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2019\/12\/10102953\/t3.png?fit=597%2C314&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4573,"url":"https:\/\/dcaclab.com\/blog\/j-k-flip-flop-explained-in-detail\/","url_meta":{"origin":4592,"position":1},"title":"J K Flip Flop Explained in Detail","date":"January 20, 2020","format":false,"excerpt":"Flip - flops are one of the most fundamental electronic components. These are used as one-bit storage elements, clock dividers and also we can make counters, shift registers and storing registers by connecting the flip flops in particular sequences. These flip flops use feedback concept to create sequential logic where\u2026","rel":"","context":"In "General Electronics"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/01\/20202426\/JK1.png?fit=532%2C274&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4638,"url":"https:\/\/dcaclab.com\/blog\/d-flip-flop-explained-in-detail\/","url_meta":{"origin":4592,"position":2},"title":"D Flip Flop Explained in Detail","date":"May 13, 2020","format":false,"excerpt":"Flip - flops are one of the most fundamental electronic components. These are used as one-bit storage elements, clock dividers and also we can make counters, shift registers, and storing registers by connecting the flip flops in particular sequences. These flip flops use feedback concept to create sequential logic where\u2026","rel":"","context":"In "General Electronics"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/05\/13202145\/Document-5_1.jpg?fit=1200%2C532&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":27,"url":"https:\/\/dcaclab.com\/blog\/ic-testing\/","url_meta":{"origin":4592,"position":3},"title":"IC TESTING","date":"December 18, 2017","format":false,"excerpt":"An IC (Integrated Circuit) can not be repaired and neither it had to be since they come in very cheap cost in comparison to the circuitry they contain. The Question arises in front of us is that how to test an ic and when should we throw or replace the\u2026","rel":"","context":"In "Testing"","img":{"alt_text":"","src":"https:\/\/i0.wp.com\/dcaclab.com\/blog\/wp-content\/uploads\/2017\/10\/shoring_condition.jpg?fit=382%2C285&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":4000,"url":"https:\/\/dcaclab.com\/blog\/keyboard-shortcuts-for-dcaclab\/","url_meta":{"origin":4592,"position":4},"title":"Keyboard Shortcuts for DCACLab","date":"August 16, 2018","format":false,"excerpt":"We have introduces Keyboard Shortcuts for DCACLab so that you can use the online circuit simulator more easily than before. Flip the components Rotate the components Undo and Redo steps Color of Components Color of LED Color of Lamp Bulb Color of Wires Keyboard shortcut to flip the components in\u2026","rel":"","context":"In "Updates"","img":{"alt_text":"color of bulb in dcaclab","src":"https:\/\/i0.wp.com\/dcaclab.com\/blog\/wp-content\/uploads\/2018\/08\/color-of-bulb-1.jpg?fit=570%2C245&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]},{"id":3794,"url":"https:\/\/dcaclab.com\/blog\/how-to-use-battery-in-lab\/","url_meta":{"origin":4592,"position":5},"title":"How to use Battery in Lab","date":"March 10, 2018","format":false,"excerpt":"You have to follow steps in order to use the battery in DCACLab. Steps to use Battery in Lab Step 1: Navigate through the list of the devices\/components and locate the symbol of battery as shown in image below. Step 2:\u00a0Click on the icon of the battery as shown in\u2026","rel":"","context":"In "Lesson"","img":{"alt_text":"how to use battery properties in dcaclab","src":"https:\/\/i0.wp.com\/dcaclab.com\/blog\/wp-content\/uploads\/2018\/03\/how-to-use-battery-properties-in-dcaclab.jpg?fit=773%2C305&ssl=1&resize=350%2C200","width":350,"height":200},"classes":[]}],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/posts\/4592"}],"collection":[{"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/comments?post=4592"}],"version-history":[{"count":9,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/posts\/4592\/revisions"}],"predecessor-version":[{"id":4650,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/posts\/4592\/revisions\/4650"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/media\/4604"}],"wp:attachment":[{"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/media?parent=4592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/categories?post=4592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dcaclab.com\/blog\/wp-json\/wp\/v2\/tags?post=4592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\"](\"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25163232\/osillo1-7.png?resize=162%2C155&ssl=1\")
![\"\"](\"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25161020\/osillo1-1.png?resize=283%2C175&ssl=1\")
<\/p>\r\n![\"\"](\"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25161615\/osillo1-3.png?resize=570%2C252&ssl=1\")
![\"\"](\"https:\/\/i0.wp.com\/s3.amazonaws.com\/dcaclab.wordpress\/wp-content\/uploads\/2020\/03\/25161742\/osillo1-4.png?resize=581%2C256&ssl=1\")