参数资料
| 型号： | XC2S400E-6FGG456C |
| 厂商： | Xilinx Inc |
| 文件页数： | 18/108页 |
| 文件大小： | 0K |
| 描述： | IC SPARTAN-IIE FPGA 400K 456FBGA |
| 产品变化通告： | FPGA Family Discontinuation 18/Apr/2011 |
| 标准包装： | 60 |
| 系列： | Spartan®-IIE |
| LAB/CLB数： | 2400 |
| 逻辑元件/单元数： | 10800 |
| RAM 位总计： | 163840 |
| 输入/输出数： | 329 |
| 门数： | 400000 |
| 电源电压： | 1.71 V ~ 1.89 V |
| 安装类型： | 表面贴装 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 456-BBGA |
| 供应商设备封装： | 456-FBGA |
| 其它名称： | 122-1327 |
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DS077-2 (v3.0) August 9, 2013
17
Product Specification
Spartan-IIE FPGA Family: Functional Description
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
Dedicated Routing
Some classes of signal require dedicated routing resources
to maximize performance. In the Spartan-IIE FPGA archi-
tecture, dedicated routing resources are provided for two
classes of signal.
Horizontal routing resources are provided for on-chip
3-state busses. Four partitionable bus lines are
provided per CLB row, permitting multiple busses
within a row, as shown in Figure 10.
Two dedicated nets per CLB propagate carry signals
vertically to the adjacent CLB.
Global Routing
Global Routing resources distribute clocks and other sig-
nals with very high fanout throughout the device. Spar-
tan-IIE devices include two tiers of global routing resources
referred to as primary and secondary global routing
resources.
The primary global routing resources are four
dedicated global nets with dedicated input pins that are
designed to distribute high-fanout clock signals with
minimal skew. Each global clock net can drive all CLB,
IOB, and block RAM clock pins. The primary global
nets may only be driven by global buffers. There are
four global buffers, one for each global net.
The secondary global routing resources consist of 24
backbone lines, 12 across the top of the chip and 12
across the bottom. From these lines, up to 12 unique
signals per column can be distributed via the 12
longlines in the column. These secondary resources
are more flexible than the primary resources since they
are not restricted to routing only to clock pins.
Clock Distribution
The Spartan-IIE family provides high-speed, low-skew clock
distribution through the primary global routing resources
described above. A typical clock distribution net is shown in
Four global buffers are provided, two at the top center of the
device and two at the bottom center. These drive the four
primary global nets that in turn drive any clock pin.
Four dedicated clock pads are provided, one adjacent to
each of the global buffers. The input to the global buffer is
selected either from these pads or from signals in the gen-
eral purpose routing.
Delay-Locked Loop (DLL)
Associated with each global clock input buffer is a fully digi-
tal Delay-Locked Loop (DLL) that can eliminate skew
between the clock input pad and internal clock-input pins
throughout the device. Each DLL can drive two global clock
networks. The DLL monitors the input clock and the distrib-
uted clock, and automatically adjusts a clock delay element
(Figure 12). Additional delay is introduced such that clock
edges reach internal flip-flops exactly one clock period after
they arrive at the input. This closed-loop system effectively
eliminates clock-distribution delay by ensuring that clock
Figure 10: BUFT Connections to Dedicated Horizontal Bus Lines
CLB
3-State
Lines
DS001_07_090600
Figure 11: Global Clock Distribution Network
Global Clock
Spine
Global Clock
Column
GCLKPAD2
GCLKBUF2
GCLKPAD3
GCLKBUF3
GCLKBUF1
GCLKPAD1
GCLKBUF0
GCLKPAD0
Global
Clock Rows
DS001_08_060100
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XC2S400E-6FGG456I | 制造商:Xilinx 功能描述:FPGA SPARTAN-IIE 400K GATES 10800 CELLS 357MHZ 1.8V 456FBGA - Trays |
| XC2S400E-6FGG676C | 制造商:XILINX 制造商全称:XILINX 功能描述:Spartan-IIE FPGA |
| XC2S400E-6FGG676I | 制造商:XILINX 制造商全称:XILINX 功能描述:Spartan-IIE FPGA |
| XC2S400E-6FT256C | 功能描述:IC SPARTAN-IIE FPGA 400K 256FTBG RoHS:是 类别:集成电路 (IC) >> 嵌入式 - FPGA（现场可编程门阵列） 系列:Spartan®-IIE 产品变化通告:Step Intro and Pkg Change 11/March/2008 标准包装:1 系列:Virtex®-5 SXT LAB/CLB数:4080 逻辑元件/单元数:52224 RAM 位总计:4866048 输入/输出数:480 门数:- 电源电压:0.95 V ~ 1.05 V 安装类型:表面贴装 工作温度:-40°C ~ 100°C 封装/外壳:1136-BBGA，FCBGA 供应商设备封装:1136-FCBGA 配用:568-5088-ND - BOARD DEMO DAC1408D750122-1796-ND - EVALUATION PLATFORM VIRTEX-5 |
| XC2S400E-6FT256I | 制造商:Xilinx 功能描述:FPGA SPARTAN-IIE 400K GATES 10800 CELLS 357MHZ 1.8V 256FTBGA - Trays |
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