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XAPP440

Abstract: XC9500 XC9500XL XC9500XV CoolRunner-II CPLD
Text: Application Note: CPLD R Power On Behavior of Xilinx CPLDs XAPP440 v1.0 May 25, 2006 Introduction Why Programmable Logic is Different during Power On Applying power to a standard logic chip, SRAM, or EPROM, usually results in output pins tracking the applied voltage as it rises. Programmable logic attempts to emulate that behavior,