TheMPC555/MPC556isamemberofMotorola’sMPC500PowerPCTMRISCMicrocontrollerfamily.TheMPC555/MPC556offersthefollowingfeatures:•PowerPCcorewithfloating-pointunit•26KbytesfastRAMand6KbytesTPUmicrocodeRAM•448KbytesflashEEPROMwith5-Vprogramming•5-VI/Osystem•Serialsystem:queuedserialmult