XC4VFX40-10FFG1152C Xilinx Inc, XC4VFX40-10FFG1152C Datasheet - Page 286

• 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: -

Chapter 6: SelectIO Resources
286
DIFF_SSTL2_II_DCI
DIFF_SSTL2_II_DCI
External Termination
DIFF_SSTL2_II
DIFF_SSTL2_II
DIFF_SSTL2_II
DCI
R 0 = 25
R 0 = 25
Figure 6-63: Differential SSTL2 (2.5V) Class II Unidirectional DCI Termination
Figure 6-64: Differential SSTL2 (2.5V) Class II with Bidirectional Termination
Ω
Ω
+
–
V
V
CCO
CCO
Figure 6-63
differential SSTL2 Class II (2.5V) with unidirectional DCI termination.
Figure 6-64
differential SSTL2 Class II (2.5V) with bidirectional termination.
= 2.5V
= 2.5V
2R
2R
2R
2R
IOB
VRP
VRN
VRP
VRN
IOB
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
shows a sample circuit illustrating a valid termination technique for CSE
shows a sample circuit illustrating a valid termination technique for CSE
25Ω
25Ω
V
V
TT
TT
= 1.25V
= 1.25V
www.xilinx.com
50Ω
50Ω
Z 0
Z 0
Z 0
Z 0
V
V
TT
50Ω
TT
50Ω
IOB
= 1.25V
= 1.25V
V
V
CCO
CCO
2R
2R
2R
2R
= 2.5V
= 2.5V
VRP
VRN
VRP
VRN
25Ω
25Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
UG070 (v2.6) December 1, 2008
IOB
Virtex-4 FPGA User Guide
DIFF_SSTL2_II_DCI
DIFF_SSTL2_II
DIFF_SSTL2_II
DIFF_SSTL2_II
ug070_6_62_121206
+
–
+
ug070_6_61_071904
R