EP3C5 ALTERA [Altera Corporation], EP3C5 Datasheet - Page 3

• Manufacturer Part Number: EP3C5
• Description: Cyclone III Device Data Sheet
• Manufacturer: ALTERA [Altera Corporation]

Chapter 1: Cyclone III Device Data Sheet
Electrical Characteristics
© January 2010 Altera Corporation
Table 1–2. Cyclone III Devices Maximum Allowed Overshoot During Transitions over a 10-Year Time
Frame
Note to
(1)
Symbol
V
Figure 1–1
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
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.
i
Table
(Note 1)
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
1–2:
Parameter
shows the methodology to determine the overshoot duration. In the example in
AC Input
Voltage
V
V
V
V
V
V
V
V
V
V
V
V
V
Condition
V
I
I
I
I
I
I
I
I
I
I
I
I
I
I
= 3.95 V
= 4.05 V
= 4.10 V
= 4.15 V
= 4.20 V
= 4.25 V
= 4.30 V
= 4.35 V
= 4.40 V
= 4.45 V
= 4.50 V
= 4.60 V
= 4.70 V
= 4.0 V
Overshoot Duration as % of High Time
95.67
55.24
31.97
18.52
10.74
0.047
Cyclone III Device Handbook, Volume 2
6.23
3.62
1.22
0.71
0.41
0.14
100
2.1
Figure
1–1, overshoot
Unit
%
%
%
%
%
%
%
%
%
%
%
%
%
%
1–3