XC5VLX50-2FF676I Xilinx Inc, XC5VLX50-2FF676I Datasheet - Page 224
![FPGA Virtex®-5 Family 46080 Cells 65nm (CMOS) Technology 1V 676-Pin FCBGA](/photos/6/73/67306/xilinx-_1136-fbga_sml.jpg)
XC5VLX50-2FF676I
Manufacturer Part Number
XC5VLX50-2FF676I
Description
FPGA Virtex®-5 Family 46080 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 XC5VLX50-2FF676I
Package
676FCBGA
Family Name
Virtex®-5
Device Logic Units
46080
Typical Operating Supply Voltage
1 V
Maximum Number Of User I/os
440
Ram Bits
1769472
Number Of Logic Elements/cells
46080
Number Of Labs/clbs
3600
Total Ram Bits
1769472
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-V5-ML561-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-V5-ML550-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-V5-ML521-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-AFX-FF676-500-G - BOARD DEV VIRTEX 5 FF676HW-V5GBE-DK-UNI-G - KIT DEV V5 LXT GIGABIT ETHERNET122-1508 - EVALUATION PLATFORM VIRTEX-5
Number Of Gates
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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Chapter 6: SelectIO Resources
224
Controlled Impedance Driver (Source Termination)
Controlled Impedance Driver with Half Impedance (Source Termination)
1.
2.
Alternatively, bidirectional point-to-point lines can use controlled-impedance drivers
(with 3-state buffers) on both ends.
Some I/O standards, such as LVCMOS, must have a drive impedance matching the
characteristic impedance of the driven line. DCI can provide controlled impedance output
drivers to eliminate reflections without an external source termination. The impedance is
set by the external reference resistors with resistance equal to the trace impedance.
The DCI I/O standards supporting the controlled impedance driver are: LVDCI_15,
LVDCI_18, LVDCI_25, LVDCI_33, HSLVDCI_15, HSLVDCI_18, HSLVDCI_25, and
HSLVDCI_33.
X-Ref Target - Figure 6-6
DCI also provides drivers with one half of the impedance of the reference resistors. This
doubling of the reference resistor value reduces the static power consumption through
these resistors by a factor of half. The DCI I/O standards supporting controlled impedance
drivers with half-impedance are LVDCI_DV2_15, LVDCI_DV2_18, and LVDCI_DV2_25.
Figure 6-7
reference resistors R must be 2 × Z
X-Ref Target - Figure 6-7
Driver with termination to V
Driver with termination to V
illustrates a controlled driver with half impedance inside a Virtex-5 device. The
Figure 6-7: Controlled Impedance Driver with Half Impedance
Figure 6-6
Figure 6-6: Controlled Impedance Driver
illustrates a controlled impedance driver in a Virtex-5 device.
www.xilinx.com
Virtex-5 DCI
CCO
CCO
Virtex-5 DCI
0
R/2
R
in order to match the impedance of Z
/2 (Split Termination, Thevenin equivalent)
(Single Termination)
IOB
IOB
UG190_6_04_012706
UG190_6_05_021206
Z
Z
0
0
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
0
.
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