MCL65 in a Spartan-3 September 29, 2017October 2, 2017 MicroCore Labs Just ported the MCL65 to a Xilinx Spartan-3 board which contains an XC3S250E. 490 LUTs are used, which is 10% of the device. Share this: Click to share on X (Opens in new window) X Click to share on Facebook (Opens in new window) Facebook Like Loading... MCL65 in a Spartan-3