Cyclone IV Definition

An Intel device family that is as a cost-effective solution for data path applications. The Cyclone^® IV device family includes Cyclone^® IV E and Cyclone^® IV GX devices. The Cyclone^® IV device architecture supports M9K memory blocks to implement single-port, dual-port, and true dual-port memory, and high-speed interfaces to external memory devices such as single data rate (SDR) SDRAM, double data rate (DDR) SDRAM, double data rate II (DDR-II) SDRAM and quad data rate II (QDR-II) SRAM. Cyclone^® IV devices also contain embedded multiplier blocks that enable efficient implementation of high-performance filters and multipliers.

Cyclone^® IV GX devices have dedicated gigabit transceiver block (GXB) circuitry that includes up to 16 high-speed transceiver channels, each incorporating clock data recovery (CDR) technology and embedded SERDES capability at data rates up to 3.125 Gbps. Cyclone^® IV GX devices offer dedicated hard IP for PCI Express (PIPE) (PCIe) Gen 1.

Cyclone^® IV E devices are available with core voltages of 1.0 V and 1.2 V.

Cyclone^® IV devices provide up to eight PLLs per device, which provide advanced multiplication, programmable duty cycle, phase shifting, programmable bandwidth, manual clock switchover, clock outputs driving all networks, and normal and zero delay buffer modes. Cyclone^® IV devices also provide up to 20 global clock lines that drive the global clock network throughout the entire device.

Cyclone^® IV devices support numerous single-ended and differential I/O standards.

The memory blocks of a Cyclone^® IV device can implement shift registers and various types of memory with or without parity bits, including dual-port, true dual-port RAM, and single-port RAM; ROM; FIFO buffers; and shift registers.

You can use device migration to transfer a design between Cyclone^® IV devices with equivalent pin-outs, while maintaining the same board layout and pin assignments.