Programmable Logic: ROM

A'B'C'

A'B'C

A'BC'

A'BC

AB'C'

AB'C

ABC'

ABC

A

B

C

• Generate all the minterms

  • N inputs, 2N minterms
  • AND plane is fixed

• Program the ORconnections

• Direct implementationof truth table

  • Table lookup

AND-plane

OR-plane

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