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Ever get stuck choosing the right logic chip combination or voltage level translator? Give up the hunt and create your own custom logic chip. CPLDs can give you the logic you need, with the pinout you want, while saving board space and board revisions.The Xilinx XC 9500XL family has some of the cheapest and readily-available CPLDs. This development board from Dangerous Prototypes will help you build your first custom logic chip using simple schematic entry, Verilog, or VHDL.XC9572XL CPLD with 72 macrocells 5volt tolerant inputsOn-board 3.3v olt power supply for core and pinsSelectable 3.3v olt or external supply for pins (1.8volt to 3.3volt) LEDs for output Push button for input Populated JTAG header Easy to program with the Bus Pirate Open source (CC-BY-SA)