The evolution of Microelectronics has made the application of Programmable Logic Devices (PLDs) inevitable in modern digital circuit designs and when they are deployed in Safety Systems, their Reliability and Safety need to be proved beyond doubt. The design will have to meet the stringent requirements. This paper provides a review of commercially available PLDs and the design methodologies to be adopted while deploying them in safety systems.

Key words : PLD, error detection, correction codes