XC5VLX220T-2FF1738I Xilinx Inc, XC5VLX220T-2FF1738I Datasheet - Page 315
![FPGA Virtex®-5 Family 221184 Cells 65nm (CMOS) Technology 1V 1738-Pin FCBGA](/photos/6/73/67306/xilinx-_1136-fbga_sml.jpg)
XC5VLX220T-2FF1738I
Manufacturer Part Number
XC5VLX220T-2FF1738I
Description
FPGA Virtex®-5 Family 221184 Cells 65nm (CMOS) Technology 1V 1738-Pin FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-5 LXTr
Datasheets
1.XC5VLX30-1FFG324C.pdf
(91 pages)
2.XC5VLX30-1FFG324C.pdf
(13 pages)
3.XC5VLX30-1FFG324C.pdf
(385 pages)
Specifications of XC5VLX220T-2FF1738I
Package
1738FCBGA
Family Name
Virtex®-5
Device Logic Units
221184
Typical Operating Supply Voltage
1 V
Maximum Number Of User I/os
680
Ram Bits
7815168
Number Of Logic Elements/cells
221184
Number Of Labs/clbs
17280
Total Ram Bits
7815168
Number Of I /o
680
Voltage - Supply
0.95 V ~ 1.05 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
1738-BBGA, FCBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
HW-AFX-FF1738-500-G - BOARD DEV VIRTEX 5 FF1738
Number Of Gates
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
XC5VLX220T-2FF1738I
Manufacturer:
Xilinx Inc
Quantity:
10 000
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Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
Full Device SSO Calculator
Other SSO Assumptions
LVDCI and HSLVDCI Drivers
Bank 0
A Microsoft Excel-based spreadsheet, the Virtex-5 FPGA SSO Calculator, automates all the
PFDM and SSO calculations. The Virtex-5 FPGA SSO calculator uses PCB geometry, (board
thickness, via diameter, and breakout trace width and length) to determine power system
inductance. It determines the smallest undershoot and logic-low threshold voltage among
all input devices, calculates the average output capacitance, and determines the SSO
allowance by taking into account all of the board-level design parameters mentioned in
this document. In addition, the Virtex-5 FPGA SSO calculator checks the adjacent bank and
package SSO ensuring the full device design does not exceed the SSO allowance. Since
bank-number assignment for Virtex-5 devices is different from package to package due to
its columnar architecture (versus the peripheral I/O architecture of previous devices),
there is a separate tab at the bottom of the SSO calculator display for each Virtex-5 FPGA
package. This customizing allows for the arrangement of physically adjacent banks (as
they appear clockwise on each unique package, even though they are not labeled in a
contiguous manner), and the hard-coding of the number of V
The Virtex-5 FPGA SSO Calculator file (ug190_SSO_Calculator.zip) is available at:
https://secure.xilinx.com/webreg/clickthrough.do?cid=30154.
All limits for controlled impedance DCI I/O standards assume a 50 Ω output impedance.
For higher reference resistor (RR) values, less drive strength is needed, and the SSO limit
increases linearly. To calculate the SSO limit for a controlled impedance driver with
different reference resistors, the following formula is used:
Example
The designer uses LVDCI_18 driver with 65 Ω reference resistors. The LVDCI_18 SSO limit
for 50 Ω impedance is first taken from
SSO per V
SSO Limit LVDCI_18 at 65 Ω = ((65 Ω)/50 Ω) × 11 = 14.3
Bank 0 in all devices contains only configuration and dedicated signals. Since there is no
user I/O in Bank 0, no SSO analysis is necessary for this bank.
User SSO
CCO
/GND pin pair. Therefore, the SSO limit for LVDCI_18 at 65 Ω is:
=
⎛
⎝
User RR
----------------------- - Ω
50Ω
www.xilinx.com
⎞ SSO Limit for Ω
⎠
(
Table
6-40. The SSO limit for LVDCI_18 at 50 Ω is 11
Simultaneous Switching Output Limits
)
CCO
/GND pairs per bank.
315
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