XC4VFX12-11FFG668I Xilinx Inc, XC4VFX12-11FFG668I Datasheet - Page 296
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XC4VFX12-11FFG668I
Manufacturer Part Number
XC4VFX12-11FFG668I
Description
IC FPGA VIRTEX-4 FX 12K 668FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX12-11FFG668I
Number Of Logic Elements/cells
12312
Number Of Labs/clbs
1368
Total Ram Bits
663552
Number Of I /o
320
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
668-BBGA, FCBGA
For Use With
HW-V4-ML403-UNI-G - EVALUATION PLATFORM VIRTEX-4HW-AFX-FF668-400 - BOARD DEV VIRTEX 4 FF668
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Chapter 6: SelectIO Resources
296
HyperTransport Protocol (LDT)
Figure 6-75
50Ω transmission lines.
Table 6-33
Table 6-33: Allowed Attributes of the LVDS I/O Standard
Table 6-34
supported.
Table 6-34: Allowed Attributes of the LVDS DCI I/O Standard
The HyperTransport™ protocol or formally known as Lightning Data Transport (LDT) is a
low-voltage standard for high-speed interfaces. Its differential signaling based interface is
very similar to LVDS. Virtex-4 FPGA IOBs are equipped with LDT buffers.
summarizes all the possible LDT I/O standards and attributes supported.
IOSTANDARD
CAPACITANCE
DIFF_TERM
IOSTANDARD
CAPACITANCE
Attributes
Attributes
LVDS_25
lists the available Virtex-4 FPGA LVDS I/O standards and attributes supported.
lists the available Virtex-4 FPGA LVDS DCI I/O standards and attributes
is an example of a differential termination for an LVDS receiver on a board with
Figure 6-75: LVDS_25 With DIFF_TERM Receiver Termination
IOB
www.xilinx.com
IBUFDS/IBUFGDS
IBUFDS/IBUFGDS
LVDSEXT_25_DCI
0
LOW, NORMAL,
LOW, NORMAL,
LVDS_25_DCI
TRUE, FALSE
DONT CARE
DONT CARE
Z
Z
0
0
= 50Ω
= 50Ω
LVDS_25, LVDSEXT_25, ULVDS_25
0
Primitives
Primitives
IOB
R DIFF = 100Ω
UG070 (v2.6) December 1, 2008
OBUFDS/OBUFTDS
OBUFDS/OBUFTDS
Virtex-4 FPGA User Guide
NORMAL
Unused
Unused
Unused
LVDS_25
+
–
ug070_6_73_071904
Table 6-35
Data in
R
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