Free FPGA Database

The FPGA Database, http://www.so-logic.net/en/knowledgebase/fpga_universe is a directory of all FPGA families that have ever existed on the market. Here you can find families and sub-families of manufacturers like Xilinx, Altera, Actel, Cypress, Lattice, QuickLogic, SiliconBlue with their devices and majority of the data for each device. You can see here a complete PLD architecture: logic cells, embedded memory, clock resources, dsp blocks, IPs, I/O blocks, configuration bits and a list of available packages for each device. The database also contains a search engine, that allows you to perform search through the database according to specified parameters.