参数资料
型号: DK-DEV-3CLS200N
厂商: Altera
文件页数: 3/34页
文件大小: 0K
描述: KIT DEV CYCLONE III LS EP3CLS200
产品培训模块: Cyclone® III FPGA
Three Reasons to Use FPGA's in Industrial Designs
标准包装: 1
系列: Cyclone® III
类型: FPGA
适用于相关产品: EP3CLS200
所含物品:
产品目录页面: 606 (CN2011-ZH PDF)
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其它名称: 544-2601
Chapter 1: Cyclone III Device Datasheet
Electrical Characteristics
1–3
1
A DC signal is equivalent to 100% duty cycle. For example, a signal that overshoots to
4.2 V can only be at 4.2 V for 10.74% over the lifetime of the device; for device lifetime
of 10 years, this amounts to 10.74/10ths of a year.
Table 1–2. Cyclone III Devices Maximum Allowed Overshoot During Transitions over a 10-Year
Time Frame
Symbol
V i
Parameter
AC Input
Voltage
Condition
V I = 3.95 V
V I = 4.0 V
V I = 4.05 V
V I = 4.10 V
V I = 4.15 V
V I = 4.20 V
V I = 4.25 V
V I = 4.30 V
V I = 4.35 V
V I = 4.40 V
V I = 4.45 V
V I = 4.50 V
V I = 4.60 V
V I = 4.70 V
Overshoot Duration as % of High Time
100
95.67
55.24
31.97
18.52
10.74
6.23
3.62
2.1
1.22
0.71
0.41
0.14
0.047
Unit
%
%
%
%
%
%
%
%
%
%
%
%
%
%
Note to Table 1–2 :
(1) Figure 1–1 shows the methodology to determine the overshoot duration. In the example in Figure 1–1 , overshoot
voltage is shown in red and is present on the input pin of the Cyclone III device at over 4.1 V but below 4.2 V. From
Table 1–1 , for an overshoot of 4.1 V, the percentage of high time for the overshoot can be as high as 31.97% over
a 10-year period. Percentage of high time is calculated as ([delta T]/T) × 100. This 10-year period assumes the
device is always turned on with 100% I/O toggle rate and 50% duty cycle signal. For lower I/O toggle rates and
situations in which the device is in an idle state, lifetimes are increased.
Figure 1–1 shows the methodology to determine the overshoot duration.
Figure 1–1. Cyclone III Devices Overshoot Duration
4.2 V
4.1 V
3.3 V
Δ T
T
July 2012
Altera Corporation
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