Why the particular sequence (00 01 11 10) is followed for 4 input K- map ?

MrChips

Joined Oct 2, 2009
20,916
Because you want to keep all A = 0 states beside each other and all A = 1 states beside each other. Similarly for B, C and D variables.

The 00 01 11 00 sequence is known as Gray Code.
 

joeyd999

Joined Jun 6, 2011
4,377
And to further what MrChips says, the 'magic' of the Gray Code is that only one bit changes for each step in the sequence (or for each one row/column move in the k-map). This is fundamental to why it works.
 

crutschow

Joined Mar 14, 2008
24,750
And the reason for the Gray Code is to avoid glitches in any logic that may be generating or decoding the count sequence.
 
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