XC4VFX20-11FFG672C Xilinx Inc, XC4VFX20-11FFG672C Datasheet - Page 276

• Manufacturer Part Number: XC4VFX20-11FFG672C
• Description: IC FPGA VIRTEX-4 FX 20K 672-FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-4r

Specifications of XC4VFX20-11FFG672C

• Number Of Logic Elements/cells: 19224
• Number Of Labs/clbs: 2136
• Total Ram Bits: 1253376
• Number Of I /o: 320
• Voltage - Supply: 1.14 V ~ 1.26 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 672-BBGA, FCBGA
• For Use With: HW-V4-ML405-UNI-G - EVALUATION PLATFORM VIRTEX-4
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Number Of Gates: -

Chapter 6: SelectIO Resources
276
DIFF_HSTL_II_DCI_18
DIFF_HSTL_II_DCI_18
Complementary Single-Ended (CSE) Differential HSTL Class II (1.8V)
DCI
Figure 6-53: Differential HSTL (1.8V) Class II DCI Unidirectional Termination
V
V
CCO
CCO
Figure 6-52
differential HSTL Class II (1.8V) with unidirectional termination.
Figure 6-53
differential HSTL Class II (1.8V) with unidirectional DCI termination.
= 1.8V
= 1.8V
2R
2R
2R
2R
External Termination
IOB
VRP
VRN
VRP
VRN
DIFF_HSTL_II_18
DIFF_HSTL_II_18
Figure 6-52: Differential HSTL (1.8V) Class II Unidirectional Termination
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
shows a sample circuit illustrating a valid termination technique for
shows a sample circuit illustrating a valid termination technique for
IOB
V
V
www.xilinx.com
TT
TT
= 0.9V
= 0.9V
Z 0
Z 0
50Ω
50Ω
IOB
V
V
Z 0
Z 0
CCO
CCO
2R
2R
2R
2R
= 1.8V
= 1.8V
VRP
VRN
VRP
VRN
V
V
TT
TT
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 0.9V
= 0.9V
50Ω
50Ω
UG070 (v2.6) December 1, 2008
IOB
Virtex-4 FPGA User Guide
DIFF_HSTL_II_DCI_18
DIFF_HSTL_II_18
+
+
–
ug070_6_51_121206
ug070_6_50_71904
R