The MAX® V devices power up and become functional very quickly (i.e. time to configure = TCONFIG). Values shown in this slide for TCONFIG are for the commercial and standard industrial temperature ranges, for extended industrial or automotive the time becomes 300 – 500 µs. Power On Reset (POR) initiates a configuration download at VPOR only after all VCCINT and VCCIO pins have powered up. From this voltage, it takes TCONFIG time to enter user mode.