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Max10 - high speed IO, low speed IO and something between

Altera_Forum
Honored Contributor II
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Hi All, 

 

I am going to use 10M50SCE144 chip in my design and I am wondering about the difference between different types of IOs. According to the datasheet, there are two types of IOs - high speed IOs and low speed IOs. The datasheet has different tables describing the difference between those two types in different differential standards, but I am going to use the IOs as single ended 3.3V IOs and I need to achieve 133MHz speed on few of those pins. The question is, is it possible to use low speed IOs with 133MHz clock or I must use high speed IOs? 

 

Another question, the pin out table has few pins that are neither high nor low speed - the IO performance column is just empty for for pins (for example, pin 50 and pin 62). What is so special about those pins? 

 

Thanks, 

Alexey.
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