XC3S500E-4FTG256I Family Name, Xilinx FPGA XC3S500E-4FTG256I, Spartan-3E 10476 Cells, 500000 Gates, 74752bit, 1164 Blocks, 256-Pin FTBGA

Field Programmable Gate Arrays, Spartan-3 I-Spec, Xilinx
Evaluation kits are available for assessing the Spartan-3 families:,Spartan-3A DSP starter platform (RS stock number: 697-3399),Spartan-3A evaluation kit (RS stock number: 697-2787),Spartan-3A platform evaluation kit (RS stock number: 697-3412),Spartan-3AN evaluation kit (RS stock number: 697-3406),Spartan-3E starter kit (RS stock number: 697-3428)
An FPGA is a semiconductor device consisting of a matrix of Configurable Logic Blocks (CLBs) connected through programmable interconnects. The user determines these interconnections by programming SRAM. A CLB can be simple (AND, OR gates, etc) or complex (a block of RAM). The FPGA allows changes to be made to a design even after the device is soldered into a PCB.