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Нет, я не пытался превышать рекомендованные параметры. То, что я написал, по поводу Absolute Maximum Ratings - здесь: These ratings are stress ratings only. The functional operation of Altera devices is not implied at these conditions or at conditions beyond those indicated in the “Recommended Operating Conditions” tables in device family data sheets.
Что касается конкретного примера с ISA, то (при ее габаритах и разъеме), всегда найдется место для 245-х буферов.
В заключение - Austin Lesea (Xilinx):
You can always choose to operate anywhere inside the recommended operating conditions limits, and expect the device to perform to specifications. You may also operate anywhere inside the absolute maximum ratings and expect the device to function, but it may not meet timing, or some other specification.
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