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12 HOUR Counter

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rashid_cordero

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I need a 12 hour counter that uses the 74160 IC with 7 segment display using 7447.
The circuit must count 1-2-3-4-5-6-7-8-9-10-11-12-1-2-3-4-5... and so on, it is like 12 hour format.
pls answer thanks
 
Since the '160 decade counter resets upon reaching 9, you cannot use it. You will have to use the '163 binary counter.


Seems like you want the binary counter to count 1, 2, 3, ... , 11, 12, 1, 2,...

You need to decode state 12 (1100), and on the next rising clock, assert the LOAD with Data A high, and Data B-D low (0001). This will load the counter with 1, starting the sequence over again.
 
Since the '160 decade counter resets upon reaching 9, you cannot use it. You will have to use the '163 binary counter.


Seems like you want the binary counter to count 1, 2, 3, ... , 11, 12, 1, 2,...

You need to decode state 12 (1100), and on the next rising clock, assert the LOAD with Data A high, and Data B-D low (0001). This will load the counter with 1, starting the sequence over again.

Sir i got this problem because i use 74160 because i use 2 of it, the 1st 74160 is the one that outputs the 1st 7 segment(1,2,3,4,5,6,7,8,9,0,1,2) while the other 74160 is the one that outputs the 2nd segment(0-1)
 
More than one year he solved his problem. In fact, close to two years now.
 
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