Clock Concept in Digital Electronics( Sequential Circuit )
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TOPIC - Clock Concept In digital Electronics
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Lets understand the how clock is so much important in sequntial circuit . We know any system gives output corresponding to a particular input . Now One man give the input to a system and corresponding to this input we get a output , and he want to store that output for future use , then he must use one memory storage element , and he stored that output. after some time his mother called him .so he leave the room , and one child enter that room and he done something in sytem so input changes , and we know acording to input output also change . Now after some time that man enter room and he need that data which he stored before leave the room , but he did't get stored data . Now do same activity again but EXTRA THING that is CLOCK . now that circuit synchronised with clock . synchonised means output respond to input when clock is on . now that man goes out from room before that he OFF the clock , then if child comes and chage the input ,this time output does not change , because clock is OFF . THAT IS BIGGEST ADVANTAGE OF CLOCK .
TYPES OF CLOCK -
1- Level Trigger
2- Edge Trigger
TOPIC - Clock Concept In digital Electronics
For Better Understanding of this concept with video click on link
Lets understand the how clock is so much important in sequntial circuit . We know any system gives output corresponding to a particular input . Now One man give the input to a system and corresponding to this input we get a output , and he want to store that output for future use , then he must use one memory storage element , and he stored that output. after some time his mother called him .so he leave the room , and one child enter that room and he done something in sytem so input changes , and we know acording to input output also change . Now after some time that man enter room and he need that data which he stored before leave the room , but he did't get stored data . Now do same activity again but EXTRA THING that is CLOCK . now that circuit synchronised with clock . synchonised means output respond to input when clock is on . now that man goes out from room before that he OFF the clock , then if child comes and chage the input ,this time output does not change , because clock is OFF . THAT IS BIGGEST ADVANTAGE OF CLOCK .
TYPES OF CLOCK -
1- Level Trigger
2- Edge Trigger
- Symbolic Representation Of Level And Edge Trigger -
- Notation of POSITIVE and NEGATIVE Trigger - Left most ( 1st figure ) only representation of positive trigger , and all othe right most ( 2nd , 3rd, 4th ) are the representation of negative trigger .
NOTE - Do not Confuse with left most figure ( 4th figure ) where Bubble and Bar both present . Do not cancle Bubble and Bar to each other , and says it is postive , if you Do this You are WRONG . it is also a NEGATIVE TIGGER , it is symbolic representation nothing else .
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