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Virtex-II Platform FPGAs:
Complete Data Sheet
Product Specification
DS031 (v4.0) April 7, 2014
Module 1:
Introduction and Overview
7 pages
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Summary of Features
General Description
Architecture
Device/Package Combinations and Maximum I/O
Ordering Examples
Module 3:
DC and Switching Characteristics
44 pages
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Electrical Characteristics
Performance Characteristics
Switching Characteristics
Pin-to-Pin Output Parameter Guidelines
Pin-to-Pin Input Parameter Guidelines
DCM Timing Parameters
Source-Synchronous Switching Characteristics
Module 2:
Functional Description
40 pages
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Detailed Description
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Input/Output Blocks (IOBs)
Digitally Controlled Impedance (DCI)
Configurable Logic Blocks (CLBs)
18-Kb Block SelectRAM™ Resources
18-Bit x 18-Bit Multipliers
Global Clock Multiplexer Buffers
Digital Clock Manager (DCM)
Module 4:
Pinout Information
227 pages
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Pin Definitions
Pinout Tables
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CS144/CSG144 Chip-Scale BGA Package
FG256/FGG256 Fine-Pitch BGA Package
FG456/FGG456 Fine-Pitch BGA Package
FG676/FGG676 Fine-Pitch BGA Package
BG575/BGG575 Standard BGA Package
BG728/BGG728 Standard BGA Package
FF896 Flip-Chip Fine-Pitch BGA Package
FF1152 Flip-Chip Fine-Pitch BGA Package
FF1517 Flip-Chip Fine-Pitch BGA Package
BF957Flip-Chip BGA Package
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Routing
Creating a Design
Configuration
IMPORTANT NOTE:
Page, figure, and table numbers begin at 1 for each module, and each module has its own Revision
History at the end. Use the PDF "Bookmarks" pane for easy navigation in this volume.
© 2000–2014 Xilinx, Inc. All rights reserved. XILINX, the Xilinx logo, the Brand Window, and other designated brands included herein are trademarks of Xilinx, Inc. All other
trademarks are the property of their respective owners.
DS031 (v4.0) April 7, 2014
Product Specification
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Virtex-II Platform FPGAs:
Introduction and Overview
Product Specification
DS031-1 (v4.0) April 7, 2014
Summary of Virtex-II™ Features
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Industry First Platform FPGA Solution
IP-Immersion Architecture
- Densities from 40K to 8M system gates
- 420 MHz internal clock speed (Advance Data)
- 840+ Mb/s I/O (Advance Data)
SelectRAM™ Memory Hierarchy
- 3 Mb of dual-port RAM in 18 Kbit block SelectRAM
resources
- Up to 1.5 Mb of distributed SelectRAM resources
High-Performance Interfaces to External Memory
- DRAM interfaces
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SDR / DDR SDRAM
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Network FCRAM
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Reduced Latency DRAM
- SRAM interfaces
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SDR / DDR SRAM
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QDR™ SRAM
- CAM interfaces
Arithmetic Functions
- Dedicated 18-bit x 18-bit multiplier blocks
- Fast look-ahead carry logic chains
Flexible Logic Resources
- Up to 93,184 internal registers / latches with Clock
Enable
- Up to 93,184 look-up tables (LUTs) or cascadable
16-bit shift registers
- Wide multiplexers and wide-input function support
- Horizontal cascade chain and sum-of-products
support
- Internal 3-state bussing
High-Performance Clock Management Circuitry
- Up to 12 DCM (Digital Clock Manager) modules
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Precise clock de-skew
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Flexible frequency synthesis
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High-resolution phase shifting
- 16 global clock multiplexer buffers
Active Interconnect Technology
- Fourth generation segmented routing structure
- Predictable, fast routing delay, independent of
fanout
SelectIO™-Ultra Technology
- Up to 1,108 user I/Os
- 19 single-ended and six differential standards
- Programmable sink current (2 mA to 24 mA) per I/O
- Digitally Controlled Impedance (DCI) I/O: on-chip
termination resistors for single-ended I/O standards
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PCI-X compatible (133 MHz and 66 MHz) at 3.3V
PCI compliant (66 MHz and 33 MHz) at 3.3V
CardBus compliant (33 MHz) at 3.3V
Differential Signaling
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840 Mb/s Low-Voltage Differential Signaling I/O
(LVDS) with current mode drivers
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Bus LVDS I/O
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Lightning Data Transport (LDT) I/O with current
driver buffers
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Low-Voltage Positive Emitter-Coupled Logic
(LVPECL) I/O
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Built-in DDR input and output registers
- Proprietary high-performance SelectLink
Technology
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High-bandwidth data path
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Double Data Rate (DDR) link
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Web-based HDL generation methodology
Supported by Xilinx Foundation™ and Alliance
Series™ Development Systems
- Integrated VHDL and Verilog design flows
- Compilation of 10M system gates designs
- Internet Team Design (ITD) tool
SRAM-Based In-System Configuration
- Fast SelectMAP configuration
- Triple Data Encryption Standard (DES) security
option (Bitstream Encryption)
- IEEE 1532 support
- Partial reconfiguration
- Unlimited reprogrammability
- Readback capability
0.15 µm 8-Layer Metal Process with 0.12 µm
High-Speed Transistors
1.5V (V
CCINT
) Core Power Supply, Dedicated 3.3V
V
CCAUX
Auxiliary and V
CCO
I/O Power Supplies
IEEE 1149.1 Compatible Boundary-Scan Logic
Support
Flip-Chip and Wire-Bond Ball Grid Array (BGA)
Packages in Three Standard Fine Pitches (0.80 mm,
1.00 mm, and 1.27 mm)
Wire-Bond BGA Devices Available in Pb-Free
Packaging (
www.xilinx.com/pbfree)
100% Factory Tested
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© 2000–2014 Xilinx, Inc. All rights reserved. XILINX, the Xilinx logo, the Brand Window, and other designated brands included herein are trademarks of Xilinx, Inc. All other
trademarks are the property of their respective owners.
DS031-1 (v4.0) April 7, 2014
Product Specification
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Virtex-II Platform FPGAs: Introduction and Overview
Table 1:
Virtex-II Field-Programmable Gate Array Family Members
CLB
(1 CLB = 4 slices = Max 128 bits)
System
Gates
40K
80K
250K
500K
1M
1.5M
2M
3M
4M
6M
8M
Array
Row x Col.
8x8
16 x 8
24 x 16
32 x 24
40 x 32
48 x 40
56 x 48
64 x 56
80 x 72
96 x 88
112 x 104
Maximum
Distributed
RAM Kbits
8
16
48
96
160
240
336
448
720
1,056
1,456
Multiplier
Blocks
4
8
24
32
40
48
56
96
120
144
168
SelectRAM Blocks
18 Kbit
Blocks
4
8
24
32
40
48
56
96
120
144
168
Max RAM
(Kbits)
72
144
432
576
720
864
1,008
1,728
2,160
2,592
3,024
Max I/O
Pads
(1)
88
120
200
264
432
528
624
720
912
1,104
1,108
Device
XC2V40
XC2V80
XC2V250
XC2V500
XC2V1000
XC2V1500
XC2V2000
XC2V3000
XC2V4000
XC2V6000
XC2V8000
Slices
256
512
1,536
3,072
5,120
7,680
10,752
14,336
23,040
33,792
46,592
DCMs
4
4
8
8
8
8
8
12
12
12
12
Notes:
1. See details in
Table 2, “Maximum Number of User I/O Pads”
.
General Description
The Virtex-II family is a platform FPGA developed for high
performance from low-density to high-density designs that
are based on IP cores and customized modules. The family
delivers complete solutions for telecommunication, wire-
less, networking, video, and DSP applications, including
PCI, LVDS, and DDR interfaces.
The leading-edge 0.15 µm / 0.12 µm CMOS 8-layer metal
process and the Virtex-II architecture are optimized for high
speed with low power consumption. Combining a wide vari-
ety of flexible features and a large range of densities up to
10 million system gates, the Virtex-II family enhances pro-
grammable logic design capabilities and is a powerful alter-
native to mask-programmed gates arrays. As shown in
Table 1,
the Virtex-II family comprises 11 members, ranging
from 40K to 8M system gates.
Wire-bond packages CS, FG, and BG are optionally avai-
labe in Pb-free versions CSG, FGG, and BGG. See
Virtex-II
Ordering Examples, page 6.
Table 2
shows the maximum number of user I/Os available.
The Virtex-II device/package combination table (Table
6
at
the end of this section) details the maximum number of I/Os
for each device and package using wire-bond or flip-chip
technology.
Table 2:
Maximum Number of User I/O Pads
Device
XC2V40
XC2V80
XC2V250
XC2V500
XC2V1000
XC2V1500
XC2V2000
XC2V3000
XC2V4000
XC2V6000
XC2V8000
Wire-Bond
88
120
200
264
328
392
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516
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Flip-Chip
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432
528
624
720
912
1,104
1,108
Packaging
Offerings include ball grid array (BGA) packages with
0.80 mm, 1.00 mm, and 1.27 mm pitches. In addition to tra-
ditional wire-bond interconnects, flip-chip interconnect is
used in some of the BGA offerings. The use of flip-chip
interconnect offers more I/Os than is possible in wire-bond
versions of the similar packages. Flip-chip construction
offers the combination of high pin count with high thermal
capacity.
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Product Specification
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Virtex-II Platform FPGAs: Introduction and Overview
Architecture
Virtex-II Array Overview
Virtex-II devices are user-programmable gate arrays with
various configurable elements. The Virtex-II architecture is
optimized for high-density and high-performance logic
designs. As shown in
Figure 1,
the programmable device is
comprised of input/output blocks (IOBs) and internal
configurable logic blocks (CLBs).
Programmable I/O blocks provide the interface between
package pins and the internal configurable logic. Most
popular and leading-edge I/O standards are supported by
the programmable IOBs.
DCM
Global Clock Mux
DCM
IOB
Configurable Logic
Programmable I/Os
CLB
Block SelectRAM
Multiplier
DS031_28_100900
Figure 1:
Virtex-II Architecture Overview
The internal configurable logic includes four major elements
organized in a regular array.
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Configurable Logic Blocks (CLBs) provide functional
elements for combinatorial and synchronous logic,
including basic storage elements. BUFTs (3-state
buffers) associated with each CLB element drive
dedicated segmentable horizontal routing resources.
Block SelectRAM memory modules provide large
18 Kbit storage elements of dual-port RAM.
Multiplier blocks are 18-bit x 18-bit dedicated
multipliers.
DCM (Digital Clock Manager) blocks provide
self-calibrating, fully digital solutions for clock
distribution delay compensation, clock multiplication
and division, coarse- and fine-grained clock phase
shifting.
configuration and can be reloaded to change the functions
of the programmable elements.
Virtex-II Features
This section briefly describes Virtex-II features.
Input/Output Blocks (IOBs)
IOBs are programmable and can be categorized as follows:
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Input block with an optional single-data-rate or
double-data-rate (DDR) register
Output block with an optional single-data-rate or DDR
register, and an optional 3-state buffer, to be driven
directly or through a single or DDR register
Bidirectional block (any combination of input and output
configurations)
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A new generation of programmable routing resources called
Active Interconnect Technology interconnects all of these
elements. The general routing matrix (GRM) is an array of
routing switches. Each programmable element is tied to a
switch matrix, allowing multiple connections to the general
routing matrix. The overall programmable interconnection is
hierarchical and designed to support high-speed designs.
All programmable elements, including the routing
resources, are controlled by values stored in static memory
cells. These values are loaded in the memory cells during
DS031-1 (v4.0) April 7, 2014
Product Specification
These registers are either edge-triggered D-type flip-flops
or level-sensitive latches.
IOBs support the following single-ended I/O standards:
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LVTTL, LVCMOS (3.3V, 2.5V, 1.8V, and 1.5V)
PCI-X compatible (133 MHz and 66 MHz) at 3.3V
PCI compliant (66 MHz and 33 MHz) at 3.3V
CardBus compliant (33 MHz) at 3.3V
GTL and GTLP
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Virtex-II Platform FPGAs: Introduction and Overview
A multiplier block is associated with each SelectRAM mem-
ory block. The multiplier block is a dedicated 18 x 18-bit
multiplier and is optimized for operations based on the block
SelectRAM content on one port. The 18 x 18 multiplier can
be used independently of the block SelectRAM resource.
Read/multiply/accumulate operations and DSP filter struc-
tures are extremely efficient.
Both the SelectRAM memory and the multiplier resource
are connected to four switch matrices to access the general
routing resources.
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HSTL (Class I, II, III, and IV)
SSTL (3.3V and 2.5V, Class I and II)
AGP-2X
The digitally controlled impedance (DCI) I/O feature auto-
matically provides on-chip termination for each I/O element.
The IOB elements also support the following differential sig-
naling I/O standards:
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LVDS
BLVDS (Bus LVDS)
ULVDS
LDT
LVPECL
Global Clocking
The DCM and global clock multiplexer buffers provide a
complete solution for designing high-speed clocking
schemes.
Up to 12 DCM blocks are available. To generate de-skewed
internal or external clocks, each DCM can be used to elimi-
nate clock distribution delay. The DCM also provides 90-,
180-, and 270-degree phase-shifted versions of its output
clocks. Fine-grained phase shifting offers high-resolution
phase adjustments in increments of 1/256 of the clock
period. Very flexible frequency synthesis provides a clock
output frequency equal to any M/D ratio of the input clock
frequency, where M and D are two integers. For the exact
timing parameters, see
Virtex-II Electrical Characteristics.
Virtex-II devices have 16 global clock MUX buffers, with up
to eight clock nets per quadrant. Each global clock MUX
buffer can select one of the two clock inputs and switch
glitch-free from one clock to the other. Each DCM block is
able to drive up to four of the 16 global clock MUX buffers.
Two adjacent pads are used for each differential pair. Two or
four IOB blocks connect to one switch matrix to access the
routing resources.
Configurable Logic Blocks (CLBs)
CLB resources include four slices and two 3-state buffers.
Each slice is equivalent and contains:
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Two function generators (F & G)
Two storage elements
Arithmetic logic gates
Large multiplexers
Wide function capability
Fast carry look-ahead chain
Horizontal cascade chain (OR gate)
The function generators F & G are configurable as 4-input
look-up tables (LUTs), as 16-bit shift registers, or as 16-bit
distributed SelectRAM memory.
In addition, the two storage elements are either edge-trig-
gered D-type flip-flops or level-sensitive latches.
Each CLB has internal fast interconnect and connects to a
switch matrix to access general routing resources.
Routing Resources
The IOB, CLB, block SelectRAM, multiplier, and DCM ele-
ments all use the same interconnect scheme and the same
access to the global routing matrix. Timing models are
shared, greatly improving the predictability of the perfor-
mance of high-speed designs.
There are a total of 16 global clock lines, with eight available
per quadrant. In addition, 24 vertical and horizontal long
lines per row or column as well as massive secondary and
local routing resources provide fast interconnect. Virtex-II
buffered interconnects are relatively unaffected by net
fanout and the interconnect layout is designed to minimize
crosstalk.
Horizontal and vertical routing resources for each row or
column include:
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24 long lines
120 hex lines
40 double lines
16 direct connect lines (total in all four directions)
Block SelectRAM Memory
The block SelectRAM memory resources are 18 Kb of
dual-port RAM, programmable from 16K x 1 bit to 512 x 36
bits, in various depth and width configurations. Each port is
totally synchronous and independent, offering three
"read-during-write" modes. Block SelectRAM memory is
cascadable to implement large embedded storage blocks.
Supported memory configurations for dual-port and sin-
gle-port modes are shown in
Table 3.
Table 3:
Dual-Port And Single-Port Configurations
16K x 1 bit
8K x 2 bits
4K x 4 bits
2K x 9 bits
1K x 18 bits
512 x 36 bits
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