Altera FPGA Cyclone IV E series programmable Logic Device CPLD
EP4CE10E22C8N
Absolute Maximum Ratings
Absolute maximum ratings define the maximum operating conditions
for Cyclone IV
devices. The values are based on experiments conducted with the
device and
theoretical modeling of breakdown and damage mechanisms. The
functional
operation of the device is not implied at these conditions. Table
1–1 lists the absolute
maximum ratings for Cyclone IV devices.
c Conditions beyond those listed in Table 1–1 cause permanent
damage to the device.
Additionally, device operation at the absolute maximum ratings for
extended periods
of time have adverse effects on the device.
Maximum Allowed Overshoot or Undershoot Voltage
During transitions, input signals may overshoot to the voltage
shown in Table 1–2 and
undershoot to –2.0 V for a magnitude of currents less than 100 mA
and for periods
shorter than 20 ns. Table 1–2 lists the maximum allowed input
overshoot voltage and
the duration of the overshoot voltage as a percentage over the
lifetime of the device.
The maximum allowed overshoot duration is specified as a percentage
of high-time
over the lifetime of the device.
A DC signal is equivalent to 100% duty cycle. For example, a signal
that overshoots to
4.3 V can only be at 4.3 V for 65% over the lifetime of the device;
for a device lifetime
of 10 years, this amounts to 65/10ths of a year
Figure 1–1 shows the methodology to determine the overshoot
duration. The
overshoot voltage is shown in red and is present on the input pin
of the Cyclone IV
device at over 4.3 V but below 4.4 V. From Table 1–2, for an
overshoot of 4.3 V, the
percentage of high time for the overshoot can be as high as 65%
over a 10-year period.
Percentage of high time is calculated as ([delta T]/T) × 100. This
10-year period
assumes that 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.
Packaging and transportation instructions
- According to the standard export packaging.
Customers can choose from cartons, wooden cases and wooden pallets
according to their own requirements.
Q&A
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days.
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Factory price, 30% deposit, 70%T/T payment before shipment.
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