Virtex-E 1.8 V Field Programmable Gate Arrays
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Production Product Specification
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Virtex-E Compared to Virtex Devices
The Virtex-E family offers up to 43,200 logic cells in devices
up to 30% faster than the Virtex family.
I/O performance is increased to 622 Mb/s using Source
Synchronous data transmission architectures and synchro-
nous system performance up to 240 MHz using sin-
gled-ended SelectI/O technology. Additional I/O standards
are supported, notably LVPECL, LVDS, and BLVDS, which
use two pins per signal. Almost all signal pins can be used
for these new standards.
Virtex-E devices have up to 640 Kb of faster (250 MHz)
block SelectRAM, but the individual RAMs are the same
size and structure as in the Virtex family. They also have
eight DLLs instead of the four in Virtex devices. Each indi-
vidual DLL is slightly improved with easier clock mirroring
and 4x frequency multiplication.
VCCINT, the supply voltage for the internal logic and mem-
ory, is 1.8 V, instead of 2.5 V for Virtex devices. Advanced
processing and 0.18
μm design rules have resulted in
smaller dice, faster speed, and lower power consumption.
I/O pins are 3 V tolerant, and can be 5 V tolerant with an
external 100
Ω resistor. PCI 5 V is not supported. With the
addition of appropriate external resistors, any pin can toler-
ate any voltage desired.
Banking rules are different. With Virtex devices, all input
buffers are powered by VCCINT. With Virtex-E devices, the
LVTTL, LVCMOS2, and PCI input buffers are powered by
the I/O supply voltage VCCO.
The Virtex-E family is not bitstream-compatible with the Vir-
tex family, but Virtex designs can be compiled into equiva-
lent Virtex-E devices.
The same device in the same package for the Virtex-E and
Virtex families are pin-compatible with some minor excep-
tions. See the data sheet pinout section for details.
General Description
The Virtex-E FPGA family delivers high-performance,
high-capacity programmable logic solutions. Dramatic
increases in silicon efficiency result from optimizing the new
architecture for place-and-route efficiency and exploiting an
aggressive 6-layer metal 0.18
μm CMOS process. These
advances make Virtex-E FPGAs powerful and flexible alter-
natives to mask-programmed gate arrays. The Virtex-E fam-
ily includes the nine members in
Table 1.Building on experience gained from Virtex FPGAs, the
Virtex-E family is an evolutionary step forward in program-
mable logic design. Combining a wide variety of program-
mable system features, a rich hierarchy of fast, flexible
interconnect resources, and advanced process technology,
the Virtex-E family delivers a high-speed and high-capacity
programmable logic solution that enhances design flexibility
while reducing time-to-market.
Virtex-E Architecture
Virtex-E devices feature a flexible, regular architecture that
comprises an array of configurable logic blocks (CLBs) sur-
rounded by programmable input/output blocks (IOBs), all
interconnected by a rich hierarchy of fast, versatile routing
Table 1: Virtex-E Field-Programmable Gate Array Family Members
Device
System
Gates
Logic
Gates
CLB
Array
Logic
Cells
Differential
I/O Pairs
User
I/O
BlockRAM
Bits
Distributed
RAM Bits
XCV50E
71,693
20,736
16 x 24
1,728
83
176
65,536
24,576
XCV100E
128,236
32,400
20 x 30
2,700
83
196
81,920
38,400
XCV200E
306,393
63,504
28 x 42
5,292
119
284
114,688
75,264
XCV300E
411,955
82,944
32 x 48
6,912
137
316
131,072
98,304
XCV400E
569,952
129,600
40 x 60
10,800
183
404
163,840
153,600
XCV600E
985,882
186,624
48 x 72
15,552
247
512
294,912
221,184
XCV1000E
1,569,178
331,776
64 x 96
27,648
281
660
393,216
XCV1600E
2,188,742
419,904
72 x 108
34,992
344
724
589,824
497,664
XCV2000E
2,541,952
518,400
80 x 120
43,200
344
804
655,360
614,400
XCV2600E
3,263,755
685,584
92 x 138
57,132
344
804
753,664
812,544
XCV3200E
4,074,387
876,096
104 x 156
73,008
344
804
851,968
1,038,336