XC2VP70-6FF1704I Xilinx Inc, XC2VP70-6FF1704I Datasheet - Page 59
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XC2VP70-6FF1704I
Manufacturer Part Number
XC2VP70-6FF1704I
Description
FPGA Virtex-II Pro™ Family 74448 Cells 1200MHz 0.13um/90nm (CMOS) Technology 1.5V 1704-Pin FCBGA
Manufacturer
Xilinx Inc
Series
Virtex™-II Pror
Datasheet
1.XC2VP20-5FGG676C.pdf
(430 pages)
Specifications of XC2VP70-6FF1704I
Package
1704FCBGA
Family Name
Virtex-II ProÂ
Device Logic Units
74448
Number Of Registers
66176
Maximum Internal Frequency
1200 MHz
Typical Operating Supply Voltage
1.5 V
Maximum Number Of User I/os
996
Ram Bits
6045696
Number Of Logic Elements/cells
74448
Number Of Labs/clbs
8272
Total Ram Bits
6045696
Number Of I /o
996
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
1704-BBGA, FCBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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18-Bit x 18-Bit Multipliers
Introduction
A Virtex-II Pro multiplier block is an 18-bit by 18-bit 2’s com-
plement signed multiplier. Virtex-II Pro devices incorporate
many embedded multiplier blocks. These multipliers can be
associated with an 18 Kb block SelectRAM+ resource or
can be used independently. They are optimized for
high-speed operations and have a lower power consump-
tion compared to an 18-bit x 18-bit multiplier in slices.
Each SelectRAM+ memory and multiplier block is tied to
four switch matrices, as shown in
Association With Block SelectRAM+ Memory
The interconnect is designed to allow SelectRAM+ memory
and multiplier blocks to be used at the same time, but some
interconnect is shared between the SelectRAM+ and the
multiplier. Thus, SelectRAM+ memory can be used only up
to 18 bits wide when the multiplier is used, because the mul-
tiplier shares inputs with the upper data bits of the
SelectRAM+ memory.
This sharing of the interconnect is optimized for an
18-bit-wide block SelectRAM+ resource feeding the multi-
plier. The use of SelectRAM+ memory and the multiplier
with an accumulator in LUTs allows for implementation of a
digital signal processor (DSP) multiplier-accumulator (MAC)
function, which is commonly used in finite and infinite
impulse response (FIR and IIR) digital filters.
Configuration
The multiplier block is an 18-bit by 18-bit signed multiplier
(2's complement). Both A and B are 18-bit-wide inputs, and
the output is 36 bits.
DS083 (v4.7) November 5, 2007
Product Specification
Figure 53: SelectRAM+ and Multiplier Blocks
Switch
Switch
Switch
Switch
Matrix
Matrix
Matrix
Matrix
R
Figure 54
18-Kbit block
SelectRAM
shows a multiplier block.
Figure
53.
DS031_33_101000
Virtex-II Pro and Virtex-II Pro X Platform FPGAs: Functional Description
www.xilinx.com
Locations / Organization
Multiplier organization is identical to the 18 Kb SelectRAM+
organization, because each multiplier is associated with an
18 Kb block SelectRAM+ resource.
Table 26: Multiplier Resources
In addition to the built-in multiplier blocks, the CLB elements
have dedicated logic to implement efficient multipliers in
logic. (Refer to
Global Clock Multiplexer Buffers
Virtex-II Pro devices have 16 clock input pins that can also
be used as regular user I/Os. Eight clock pads center on
both the top edge and the bottom edge of the device, as
illustrated in
The global clock multiplexer buffer represents the input to
dedicated low-skew clock tree distribution in Virtex-II Pro
devices. Like the clock pads, eight global clock multiplexer
buffers are on the top edge of the device and eight are on
the bottom edge.
XC2VP2
XC2VP4
XC2VP7
XC2VP20
XC2VP30
XC2VPX20
XC2VP40
XC2VP50
XC2VP70
XC2VPX70
XC2VP100
A[17:0]
B[17:0]
Device
Figure
Configurable Logic Blocks (CLBs), page
Figure 54: Multiplier Block
55.
MULT 18 x 18
Multiplier Block
Columns
10
12
14
14
16
4
4
6
8
8
8
DS031_40_100400
Total Multipliers
Module 2 of 4
136
192
232
328
308
444
12
28
44
88
88
P[35:0]
35).
48
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