Cyclone® II Field Programmable Gate Array (FPGA) IC 315 239616 18752 484-BGA 
Introduction 
Following the immensely successful first-generation Cyclone® device 
family, Altera® Cyclone II FPGAs extend the low-cost FPGA density 
range to 68,416 logic elements (LEs) and provide up to 622 usable I/O 
pins and up to 1.1 Mbits of embedded memory. Cyclone II FPGAs are 
manufactured on 300-mm wafers using TSMC's 90-nm low-k dielectric 
process to ensure rapid availability and low cost. By minimizing silicon 
area, Cyclone II devices can support complex digital systems on a single 
chip at a cost that rivals that of ASICs. Unlike other FPGA vendors who 
compromise power consumption and performance for low-cost,  
Altera’s latest generation of low-cost FPGAs—Cyclone II FPGAs, offer 60%  
higher performance and half the power consumption of competing 90-nm FPGAs.  
The low cost and optimized feature set of Cyclone II FPGAs make them ideal  
solutions for a wide array of automotive, consumer,communications, video processing,  
test and measurement, and other end-market solutions. Reference designs,  
system diagrams, and IP, found at www.altera.com, are available to help 
 you rapidly develop complete end-market solutions using Cyclone II FPGAs. 
Low-Cost Embedded Processing Solutions 
Cyclone II devices support the Nios II embedded processor which allows 
you to implement custom-fit embedded processing solutions. Cyclone II 
devices can also expand the peripheral set, memory, I/O, or performance 
of embedded processors. Single or multiple Nios II embedded processors 
can be designed into a Cyclone II device to provide additional 
co-processing power or even replace existing embedded processors in 
your system. Using Cyclone II and Nios II together allow for low-cost, 
high-performance embedded processing solutions, which allow you to 
extend your product's life cycle and improve time to market over 
standard product solutions. 
Low-Cost DSP Solutions 
Use Cyclone II FPGAs alone or as DSP co-processors to improve 
price-to-performance ratios for digital signal processing (DSP) 
applications. You can implement high-performance yet low-cost DSP 
systems with the following Cyclone II features and design support: 
■ Up to 150 18 × 18 multipliers 
■ Up to 1.1 Mbit of on-chip embedded memory 
■ High-speed interfaces to external memory 
■ DSP intellectual property (IP) cores 
■ DSP Builder interface to The Mathworks Simulink and Matlab 
design environment 
■ DSP Development Kit, Cyclone II Edition 
Cyclone II devices include a powerful FPGA feature set optimized for 
low-cost applications including a wide range of density, memory, 
embedded multiplier, and packaging options. Cyclone II devices 
 support a wide range of common external memory interfaces and  
I/O protocols required in low-cost applications. Parameterizable IP cores  
from Altera and partners make using Cyclone II interfaces and protocols fast and easy 
Features 
The Cyclone II device family offers the following features: 
■ High-density architecture with 4,608 to 68,416 LEs 
● M4K embedded memory blocks 
● Up to 1.1 Mbits of RAM available without reducing available 
logic 
● 4,096 memory bits per block (4,608 bits per block including 512 
parity bits) 
● Variable port configurations of ×1, ×2, ×4, ×8, ×9, ×16, ×18, ×32, 
and ×36 
● True dual-port (one read and one write, two reads, or two 
writes) operation for ×1, ×2, ×4, ×8, ×9, ×16, and ×18 modes 
● Byte enables for data input masking during writes 
● Up to 260-MHz operation 
■ Embedded multipliers 
● Up to 150 18- × 18-bit multipliers are each configurable as two 
independent 9- × 9-bit multipliers with up to 250-MHz 
performance 
● Optional input and output registers 
■ Advanced I/O support 
● High-speed differential I/O standard support, including LVDS, 
RSDS, mini-LVDS, LVPECL, differential HSTL, and differential 
SSTL 
● Single-ended I/O standard support, including 2.5-V and 1.8-V, 
SSTL class I and II, 1.8-V and 1.5-V HSTL class I and II, 3.3-V PCI 
and PCI-X 1.0, 3.3-, 2.5-, 1.8-, and 1.5-V LVCMOS, and 3.3-, 2.5-, 
and 1.8-V LVTTL 
● Peripheral Component Interconnect Special Interest Group (PCI 
SIG) PCI Local Bus Specification, Revision 3.0 compliance for 3.3-V 
operation at 33 or 66 MHz for 32- or 64-bit interfaces 
● PCI Express with an external TI PHY and an Altera PCI Express 
×1 Megacore® function 
● 133-MHz PCI-X 1.0 specification compatibility 
● High-speed external memory support, including DDR, DDR2, 
and SDR SDRAM, and QDRII SRAM supported by drop in 
Altera IP MegaCore functions for ease of use 
● Three dedicated registers per I/O element (IOE): one input 
register, one output register, and one output-enable register 
● Programmable bus-hold feature 
● Programmable output drive strength feature 
● Programmable delays from the pin to the IOE or logic array 
● I/O bank grouping for unique VCCIO and/or VREF bank 
settings 
● MultiVolt™ I/O standard support for 1.5-, 1.8-, 2.5-, and 
3.3-interfaces 
● Hot-socketing operation support 
● Tri-state with weak pull-up on I/O pins before and during 
configuration 
● Programmable open-drain outputs 
● Series on-chip termination support 
■ Flexible clock management circuitry 
● Hierarchical clock network for up to 402.5-MHz performance 
● Up to four PLLs per device provide clock multiplication and 
division, phase shifting, programmable duty cycle, and external 
clock outputs, allowing system-level clock management and 
skew control 
● Up to 16 global clock lines in the global clock network that drive 
throughout the entire device 
■ Device configuration 
● Fast serial configuration allows configuration times less than 
100 ms 
● Decompression feature allows for smaller programming file 
storage and faster configuration times 
● Supports multiple configuration modes: active serial, passive 
serial, and JTAG-based configuration 
● Supports configuration through low-cost serial configuration 
devices 
● Device configuration supports multiple voltages (either 3.3, 2.5, 
or 1.8 V) 
■ Intellectual property 
● Altera megafunction and Altera MegaCore function support, 
and Altera Megafunctions Partners Program (AMPPSM) 
megafunction support, for a wide range of embedded 
processors, on-chip and off-chip interfaces, peripheral 
functions, DSP functions, and communications functions and  
protocols. Visit the Altera IPMegaStore at www.altera.com to 
download IP MegaCore functions. 
● Nios II Embedded Processor support 
The Cyclone II family offers devices with the Fast-On feature, which 
offers a faster power-on-reset (POR) time. Devices that support the 
Fast-On feature are designated with an “A” in the device ordering code.For example,  
EP2C5A, EP2C8A, EP2C15A, and EP2C20A. The EP2C5A is only available in the automotive speed grade.  
The EP2C8A and EP2C20A are only available in the industrial speed grade.  
The EP2C15A is only available with the Fast-On feature and is available in both commercial and industrial grades.  
The Cyclone II “A” devices are identical in feature set and functionality to the non-A devices except for support of the faster POR time. 
Cyclone II A devices are offered in automotive speed grade. For more 
information, refer to the Cyclone II section in the Automotive-Grade Device Handbook. 
For more information on POR time specifications for Cyclone II A and 
non-A devices, refer to the Hot Socketing & Power-On Reset chapter in the Cyclone II Device Handbook. 
Table 1–1 lists the Cyclone II device family features. Table 1–2 lists the 
Cyclone II device package offerings and maximum user I/O pins. 
Chip Altera Cyclone naming rules,Chinese chip Will replace it 
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