Introduction
The Cyclone® field programmable gate array family is based on a 1.5-V, 0.13-μm, all-layer copper SRAM process, with densities up to 20,060 logic elements (LEs) and up to 288 Kbits of RAM. With features like phase-locked loops (PLLs) for clocking and a dedicated double data rate (DDR) interface to meet DDR SDRAM and fast cycle RAM (FCRAM) memory requirements, Cyclone devices are a cost-effective solution for data-path applications. Cyclone devices support various I/O standards, including LVDS at data rates up to 640 megabits per second (Mbps), and 66- and 33-MHz, 64- and 32-bit peripheral component interconnect (PCI), for interfacing with and supporting ASSP and ASIC devices. Altera also offers new low-cost serial configuration devices to configure Cyclone devices.

Features
The Cyclone device family offers the following features:
■ 2,910 to 20,060 LEs, see Table 1–1
■ Up to 294,912 RAM bits (36,864 bytes)
■ Supports configuration through low-cost serial configuration device
■ Support for LVTTL, LVCMOS, SSTL-2, and SSTL-3 I/O standards
■ Support for 66- and 33-MHz, 64- and 32-bit PCI standard
■ High-speed (640 Mbps) LVDS I/O support
■ Low-speed (311 Mbps) LVDS I/O support
■ 311-Mbps RSDS I/O support
■ Up to two PLLs per device provide clock multiplication and phase shifting
■ Up to eight global clock lines with six clock resources available per
   logic array block (LAB) row
■ Support for external memory, including DDR SDRAM (133 MHz),
   FCRAM, and single data rate (SDR) SDRAM
■ Support for multiple intellectual property (IP) cores, including
   Altera® MegaCore® functions and Altera Megafunctions Partners
   Program (AMPPSM) megafunctions.