参数资料
型号: XCS20-3TQ84I
厂商: Xilinx, Inc.
英文描述: Spartan and Spartan-XL Families Field Programmable Gate Arrays
中文描述: 斯巴达和Spartan - xL的家庭现场可编程门阵列
文件页数: 43/82页
文件大小: 863K
代理商: XCS20-3TQ84I
Spartan and Spartan-XL Families Field Programmable Gate Arrays
48
DS060 (v1.6) September 19, 2001
1-800-255-7778
Product Specification
R
Capacitive Load Factor
Figure 33 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 33 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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