XC5VLX85-2FF676I Xilinx Inc, XC5VLX85-2FF676I Datasheet - Page 46
XC5VLX85-2FF676I
Manufacturer Part Number
XC5VLX85-2FF676I
Description
FPGA Virtex®-5 Family 82944 Cells 65nm (CMOS) Technology 1V 676-Pin FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-5 LXr
Datasheets
1.XC5VLX30-1FFG324C.pdf
(91 pages)
2.XC5VLX30-1FFG324C.pdf
(13 pages)
3.XC5VLX30-1FFG324C.pdf
(385 pages)
Specifications of XC5VLX85-2FF676I
Package
676FCBGA
Family Name
Virtex®-5
Device Logic Units
82944
Typical Operating Supply Voltage
1 V
Maximum Number Of User I/os
440
Ram Bits
3538944
Number Of Logic Elements/cells
82944
Number Of Labs/clbs
6480
Total Ram Bits
3538944
Number Of I /o
440
Voltage - Supply
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
676-BBGA, FCBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
HW-AFX-FF676-500-G - BOARD DEV VIRTEX 5 FF676
Number Of Gates
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Chapter 1: Clock Resources
VHDL and Verilog Templates
46
Regional Clock Nets
In addition to global clock trees and nets, Virtex-5 devices contain regional clock nets.
These clock trees are also designed for low-skew and low-power operation. Unused
branches are disconnected. The clock trees also manage the load/fanout when all the logic
resources are used.
Regional clock nets do not propagate throughout the whole Virtex-5 device. Instead, they
are limited to only one clock region. One clock region contains four independent regional
clock nets.
To access regional clock nets, BUFRs must be instantiated. A BUFR can drive regional
clocks in up to two adjacent clock regions
can only access one adjacent region; below or above respectively. The left side BUFRs can
feed the center column I/Os.
X-Ref Target - Figure 1-23
The VHDL and Verilog code for all clocking resource primitives and ISE language
templates are available in the Libraries Guide.
BUFRs
Figure 1-23: BUFR Driving Multiple Regions
www.xilinx.com
(Figure
1-23). BUFRs in the top or bottom region
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
ug190_1_23_012306
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