IC CYCLONE II FPGA 5K 256-FBGA

 

EP2C5F256C8

Manufacturer Part NumberEP2C5F256C8
DescriptionIC CYCLONE II FPGA 5K 256-FBGA
ManufacturerAltera
SeriesCyclone® II
EP2C5F256C8 datasheets

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Specifications of EP2C5F256C8

Number Of Logic Elements/cells4608Number Of Labs/clbs288
Total Ram Bits119808Number Of I /o158
Voltage - Supply1.15 V ~ 1.25 VMounting TypeSurface Mount
Operating Temperature0°C ~ 85°CPackage / Case256-FBGA
Family NameCyclone® IINumber Of Logic Blocks/elements4608
# I/os (max)158Frequency (max)402.58MHz
Process Technology90nmOperating Supply Voltage (typ)1.2V
Logic Cells4608Ram Bits119808
Operating Supply Voltage (min)1.15VOperating Supply Voltage (max)1.25V
Operating Temp Range0C to 85COperating Temperature ClassificationCommercial
MountingSurface MountPin Count256
Package TypeFBGANo. Of Macrocells4608
Family TypeCyclone IINo. Of I/o's158
Clock ManagementPLLI/o Supply Voltage3.6V
Operating Frequency Max320MHzRohs CompliantNo
Lead Free Status / RoHS StatusContains lead / RoHS non-compliantNumber Of Gates-
Other names544-1446  
show all specifications
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Page 16/168

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Logic Elements
Another special packing mode allows the register output to feed back into
the LUT of the same LE so that the register is packed with its own fan-out
LUT, providing another mechanism for improved fitting. The LE can also
drive out registered and unregistered versions of the LUT output.
In addition to the three general routing outputs, the LEs within an LAB
have register chain outputs. Register chain outputs allow registers within
the same LAB to cascade together. The register chain output allows an
LAB to use LUTs for a single combinational function and the registers to
be used for an unrelated shift register implementation. These resources
speed up connections between LABs while saving local interconnect
resources. See
information on register chain connections.
LE Operating Modes
The Cyclone II LE operates in one of the following modes:
■
■
Each mode uses LE resources differently. In each mode, six available
inputs to the LE—the four data inputs from the LAB local interconnect,
the LAB carry-in from the previous carry-chain LAB, and the register
chain connection—are directed to different destinations to implement the
desired logic function. LAB-wide signals provide clock, asynchronous
clear, synchronous clear, synchronous load, and clock enable control for
the register. These LAB-wide signals are available in all LE modes.
The Quartus
such as library of parameterized modules (LPM) functions, automatically
chooses the appropriate mode for common functions such as counters,
adders, subtractors, and arithmetic functions. If required, you can also
create special-purpose functions that specify which LE operating mode to
use for optimal performance.
Normal Mode
The normal mode is suitable for general logic applications and
combinational functions. In normal mode, four data inputs from the LAB
local interconnect are inputs to a four-input LUT (see
Quartus II Compiler automatically selects the carry-in or the data3
signal as one of the inputs to the LUT. LEs in normal mode support
packed registers and register feedback.
2–4
Cyclone II Device Handbook, Volume 1
“MultiTrack Interconnect” on page 2–10
Normal mode
Arithmetic mode
®
II software, in conjunction with parameterized functions
for more
Figure
2–3). The
Altera Corporation
February 2007

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