Smart Card AT90S8515 + 24LC64 ( Fun Card ) The FUN card (also known as the purple card) is a plastic card the same size as a standard ISO 7816 Smart Card. The chips are internal under the gold pad on the underside of the card. They contain a AT90S8515 + 24LC64 Eeprom. This card has a much larger capacity than Gold Cards and much velocity than Silver Cards.