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GCSE     Sequential Logic     BCD Counting     D Type Flip Flop     D Type Latch     Decade Counter     >Sequencer<     Up Counter    

Sequential Logic Sequencer


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  GCSE    Sequential Logic  0 of 32    Question 1292    4017 Counter 
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Deadline not set32 of 32    Question 988    Sequential Logic 
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This control circuit repeatedly flashes an LED with the timing of the Morse code letter "R". Dit Daaaah Dit.
In real life, a buzzer could be used instead of the LED.

Many control sequences can be built with circuits similar to this one.

The output is high when inputs 0 or 2 or 3 or 4 or 6 are high. Use OR gates to get this behaviour.

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