Programmable logic array structure for realization of multi-valued multi-threshold functions using charge-coupled devices

Abstract

Programmable logic array (PLA) structures are investigated for the implementation of multi-valued multi-threshold functions using charge-coupled device technology. A new PLA structure is introduced for this purpose. It is shown that the number of functions realized using this structure is larger than those realized using an existing PLA structure. The new structure exhibits the desirable feature of being dynamically reprogrammable at the user level by controlling the thresholds of the gates used.