XC4VFX40-10FFG1152C Xilinx Inc, XC4VFX40-10FFG1152C Datasheet - Page 261

• Manufacturer Part Number: XC4VFX40-10FFG1152C
• Description: IC FPGA VIRTEX-4 FX 40K 1152FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-4r

Specifications of XC4VFX40-10FFG1152C

• Number Of Logic Elements/cells: 41904
• Number Of Labs/clbs: 4656
• Total Ram Bits: 2654208
• Number Of I /o: 448
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1152-BBGA, FCBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
GTL (Gunning Transceiver Logic)
R
GTL_DCI Usage
The Gunning Transceiver Logic (GTL) standard is a high-speed bus standard (JESD8.3)
invented by Xerox. Xilinx has implemented the terminated variation for this standard. This
standard requires a differential amplifier input buffer and an open-drain output buffer.
The negative terminal of the differential input buffer is referenced to the V
A sample circuit illustrating a valid termination technique for GTL with external parallel
termination and unconnected V
GTL does not require a V
1.2V. GTL_DCI provides single termination to V
A sample circuit illustrating a valid termination technique for GTL_DCI with internal
parallel driver and receiver termination is shown in
Table 6-10
Table 6-10: GTL DC Voltage Specifications
V
V
V
V
V
V
V
V
I
I
OH
OL
CCO
CCO
REF
TT
IH
IL
OH
OL
Figure 6-36: GTL_DCI with Internal Parallel Driver and Receiver Termination
Figure 6-35: GTL with External Parallel Termination and Unconnected V
= V
at V
at V
= V
= Unconnected
= N × V
REF
REF
OL
OH
lists the GTL DC voltage specifications.
V
Parameter
(mA) at 0.4V
– 0.05
+ 0.05
(mA)
CCO
TT
(1)
= 1.2V
IOB
R VRP = Z 0 = 50Ω
Specific Guidelines for Virtex-4 FPGA I/O Supported Standards
R
P
= Z 0 = 50Ω
CCO
www.xilinx.com
voltage. However, for GTL_DCI, V
IOB
V
CCO
TT
= 1.2V
is shown in
Min
0.74
1.14
0.79
Z 0 = 50
32
Z 0 = 50
–
–
–
–
–
V
TT
= 1.2V
CCO
Figure
R
P
for inputs or outputs.
Figure
= Z 0 = 50Ω
IOB
6-35.
N/A
Typ
0.85
0.75
V
0.8
1.2
0.2
–
–
–
REF
6-36.
V
CCO
= 0.8V
V
CCO
IOB
REF
= 1.2V
R VRP = Z 0 = 50Ω
must be connected to
= 0.8V
UG070_6_34_031308
Max
+
0.86
1.26
0.81
–
0.4
–
–
–
–
-
REF
UG070_6_33_031308
pin.
+
–
CCO
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