The Xilinx XC3S4000-4FG676I Spartan 3 family of Field-Programmable Gate Arrays is specifically designed to meet the needs of high volume, cost-sensitive consumer electronic applications. The eight-member family offers densities ranging from 50,000 to 5,000,000 system gates Features• Low-cost, high-performance logic solution for high-volume,consumer-oriented applications• Densities up to 74,880 logic cells• SelectIO™ interface signaling• Up to 633 I/O pins• 622+ Mb/s data transfer rate per I/O• 18 single-ended signal standards• 8 differential I/O standards including LVDS, RSDS• Termination by Digitally Controlled Impedance• Signal swing ranging from 1.14V to 3.465V• Double Data Rate (DDR) support• DDR, DDR2 SDRAM support up to 333 Mb/s• Logic resources• Abundant logic cells with shift register capability• Wide, fast multiplexers• Fast look-ahead carry logic• Dedicated 18 x 18 multipliers• JTAG logic compatible with IEEE 1149.1/1532• SelectRAM™ hierarchical memory• Up to 1,872 Kbits of total block RAM• Up to 520 Kbits of total distributed RAM• Digital Clock Manager (up to four DCMs)• Clock skew elimination• Frequency synthesis• High resolution phase shifting