XC3S2000-4FGG456I Xilinx Inc, XC3S2000-4FGG456I Datasheet - Page 44
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XC3S2000-4FGG456I
Manufacturer Part Number
XC3S2000-4FGG456I
Description
FPGA Spartan®-3 Family 2M Gates 46080 Cells 630MHz 90nm Technology 1.2V 456-Pin FBGA
Manufacturer
Xilinx Inc
Series
Spartan™-3r
Datasheet
1.XC3S50-4VQG100C.pdf
(217 pages)
Specifications of XC3S2000-4FGG456I
Package
456FBGA
Family Name
Spartan®-3
Device Logic Units
46080
Device System Gates
2000000
Maximum Internal Frequency
630 MHz
Typical Operating Supply Voltage
1.2 V
Maximum Number Of User I/os
333
Ram Bits
737280
Number Of Logic Elements/cells
46080
Number Of Labs/clbs
5120
Total Ram Bits
737280
Number Of I /o
333
Number Of Gates
2000000
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
456-BBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Spartan-3 FPGA Family: Functional Description
Interconnect
Interconnect (or routing) passes signals among the various
functional elements of Spartan-3 devices. There are four
kinds of interconnect: Long lines, Hex lines, Double lines,
and Direct lines.
Long lines connect to one out of every six CLBs (see
Figure
are well-suited for carrying high-frequency signals with min-
imal loading effects (e.g. skew). If all eight Global Clock
Inputs are already committed and there remain additional
clock signals to be assigned, Long lines serve as a good
alternative.
Hex lines connect one out of every three CLBs (see
Figure
44
54
23a). Because of their low capacitance, these lines
23b). These lines fall between Long lines and Dou-
CLB
CLB
CLB
(c) Double Line
6
CLB
CLB
CLB
2
CLB
8
DS099-2_21_040103
6
CLB
Figure 23: Types of Interconnect
CLB
CLB
www.xilinx.com
CLB
(a) Long Line
(b) Hex Line
CLB
6
ble lines in terms of capability: Hex lines approach the
high-frequency characteristics of Long lines at the same
time, offering greater connectivity.
Double lines connect to every other CLB (see
Compared to the types of lines already discussed, Double
lines provide a higher degree of flexibility when making con-
nections.
Direct lines afford any CLB direct access to neighboring
CLBs (see
conduct a signal from a "source" CLB to a Double, Hex, or
Long line and then from the longer interconnect back to a
Direct line accessing a "destination" CLB.
For more details, refer to the “Using Interconnect” chapter in
UG331.
CLB
Figure
CLB
CLB
CLB
CLB
CLB
6
23d). These lines are most often used to
CLB
(d) Direct Lines
CLB
CLB
CLB
DS099-2 (v2.5) December 4, 2009
CLB
CLB
DS099-2_19_040103
6
DS099-2_22_040103
Product Specification
CLB
CLB
CLB
CLB
DS099-2_20_040103
CLB
Figure
23c).
R
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