When Cyclone IV devices are installed in a system, they are rated based on a set of criteria. The operating requirements specified in this chapter must be considered to maintain the maximum possible performance and dependability of Cyclone IV devices.
Commercial, industrial, extended industrial, and automotive classes of Cyclone IV devices are available. Commercial devices have speed grades of –6 (fastest), –7, –8, –8L, and –9L; industrial devices have speed grades of –8L; and extended industrial and automotive devices have speed grades of –7. Commercial Cyclone IV GX devices come in speeds of –6 (fastest), –7, and –8, while industrial Cyclone IV GX devices come in speeds of –7.