how many jk ff?

[david90]

"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?

[faust9]

4 JK's have 16 states--0 to 15

[david90]

ops. Thanks for clearing it up.

[david90]

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.

[david90]

For the 194, how does the "do nothing" option work? There are left shift, right shift then do nothing.