Design a 16 State Counter with 5 JK FF

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To design a 16-state counter using 5 JK flip-flops (FF), it's clarified that 4 JK FFs can only count up to 15, necessitating the use of 5 for full 16-state functionality. The discussion includes a query about implementing the counter with a 74LS194 shift register and a 27C256 EEPROM, emphasizing that shifting from the register is not allowed. Participants seek clarification on the "do nothing" option of the 74LS194, which allows the counter to maintain its current state without shifting. Understanding the operation of the shift register is crucial for correctly implementing the desired counting sequence. The conversation highlights the technical challenges and requirements for creating a specific counting sequence using digital components.
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"Design a counter using jk ff that is a 16 state device which counts (sequences) in the following sequence: 0 2 4 6 A C E 3 7 F 0"

for 16 states, u would need 5 jk ff since 4 jk only go up to 15 right?
 
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4 JK's have 16 states--0 to 15
 
ops. Thanks for clearing it up.
 
How can I make this counter with a 74LS194 shift register and a programmed 27C256 EEPROM with the count sequences? The assigment said no shifting from the shift register.
 
For the 194, how does the "do nothing" option work? There are left shift, right shift then do nothing.
 

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