XC4VFX20-10FFG672C Xilinx Inc, XC4VFX20-10FFG672C Datasheet - Page 85

• 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

Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
Board Deskew with Internal Deskew
R
Some applications require board deskew with internal deskew to interface with other
devices. These applications can be implemented using two or more DCM. The circuit
shown in
Virtex devices in the same system.
Figure 2-11: Board-Level Clock with Internal Feedback (Clock Forwarding)
IBUFG
Figure 2-12
CLKIN
CLKFB
RST
PSINCDEC
PSEN
PSCLK
DADDR[6:0]
DI[15:0]
DWE
DEN
DCLK
can be used to deskew a system clock between multiple
www.xilinx.com
DCM_ADV
CLKFX180
CLK2X180
LOCKED
DO[15:0]
CLK180
CLK270
CLKDV
CLKFX
CLK2X
CLK90
CLK0
BUFG
V
GND
CC
Application Examples
D1
D2
C
ODDR
UG070_2_10_031308
Q
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