F(A 0 ,A 1 )= ∑(1,2), which means fuses 0 and 3 need to be blown.
Example
Draw the fuse map for the smallest PROM that implements the function:
f(a2,a 1 ,a 0 ) = a 2 ’.a 1 .a 0 + a 2 ’.a 1 .a 0 ’ + a 2 .a 1
Note: Only draw the minterms that are used
Solution:
A 1 A 0
m 0
m 1
F 0
m 2
m 3
Fuse Map