参数资料
型号: XCS20XL-4PQ208I
厂商: Xilinx Inc
文件页数: 43/83页
文件大小: 0K
描述: IC FPGA 3.3V I-TEMP HP 208-PQFP
产品变化通告: Product Discontinuation 26/Oct/2011
标准包装: 24
系列: Spartan®-XL
LAB/CLB数: 400
逻辑元件/单元数: 950
RAM 位总计: 12800
输入/输出数: 160
门数: 20000
电源电压: 3 V ~ 3.6 V
安装类型: 表面贴装
工作温度: -40°C ~ 100°C
封装/外壳: 208-BFQFP
供应商设备封装: 208-PQFP(28x28)
Spartan and Spartan-XL FPGA Families Data Sheet
48
DS060 (v2.0) March 1, 2013
Product Specification
R
Product Obsolete/Under Obsolescence
Capacitive Load Factor
Figure 34 shows the relationship between I/O output delay
and load capacitance. It allows a user to adjust the specified
output delay if the load capacitance is different than 50 pF.
For example, if the actual load capacitance is 120 pF, add
2.5 ns to the specified delay. If the load capacitance is 20
pF, subtract 0.8 ns from the specified output delay.
Figure 34 is usable over the specified operating conditions
of voltage and temperature and is independent of the output
slew rate control.
Figure 34: Delay Factor at Various Capacitive Loads
DS060_35_080400
-2
0
20
406080
Capacitance (pF)
Delta
Dela
y
(ns)
100
120
140
-1
0
1
2
3
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