XC4VFX20-10FFG672C Xilinx Inc, XC4VFX20-10FFG672C Datasheet - Page 268

• Manufacturer Part Number: XC4VFX20-10FFG672C
• Description: IC FPGA VIRTEX-4 FX 20K 672-FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-4r

Specifications of XC4VFX20-10FFG672C

• Total Ram Bits: 1253376
• Number Of Logic Elements/cells: 19224
• Number Of Labs/clbs: 2136
• 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
• No. Of Logic Blocks: 19224
• No. Of Macrocells: 19224
• No. Of Speed Grades: 10
• No. Of I/o's: 320
• Clock Management: DCM
• I/o Supply Voltage: 3.45V
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: HW-V4-ML405-UNI-G - EVALUATION PLATFORM VIRTEX-4
• Number Of Gates: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Chapter 6: SelectIO Resources
268
DIFF_HSTL_II_DCI
DIFF_HSTL_II_DCI
DCI
Complementary Single-Ended (CSE) Differential HSTL Class II
Figure 6-43: Differential HSTL (1.5V) Class II DCI Unidirectional Termination
V
V
CCO
CCO
Figure 6-42
differential HSTL Class II (1.5V) with unidirectional termination.
Figure 6-43
differential HSTL Class II (1.5V) with unidirectional DCI termination.
= 1.5V
= 1.5V
External Termination
2R
2R
2R
2R
IOB
VRP
VRN
VRP
VRN
Figure 6-42: Differential HSTL (1.5V) Class II Unidirectional Termination
DIFF_HSTL_II
DIFF_HSTL_II
= 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
TT
TT
www.xilinx.com
= 0.75V
= 0.75V
Z 0
Z 0
50Ω
50Ω
IOB
V
V
CCO
CCO
Z 0
Z 0
2R
2R
2R
2R
= 1.5V
= 1.5V
V
VRP
VRN
VRP
VRN
V
TT
TT
= 0.75V
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
= 0.75V
= 2Z 0 = 100Ω
= 2Z 0 = 100Ω
50Ω
50Ω
UG070 (v2.6) December 1, 2008
IOB
Virtex-4 FPGA User Guide
DIFF_HSTL_II_DCI
DIFF_HSTL_II
+
+
ug070_6_41_071904
ug070_6_40_071904
R