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Valued Contributor III
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Value of pull up resistor

Hi everyone, 

 

What is the value of the pull up resistor if enabled in MAX V 5M2210ZF256C4N CPLD. 

 

Thanks in advance :):)
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Valued Contributor III
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RPULLUP in Table 3–4. DC Electrical Characteristics for MAX V Devices 

https://www.altera.com/en_us/pdfs/literature/hb/max-v/max5_handbook.pdf
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Valued Contributor III
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--- Quote Start ---  

RPULLUP in Table 3–4. DC Electrical Characteristics for MAX V Devices 

https://www.altera.com/en_us/pdfs/literature/hb/max-v/max5_handbook.pdf 

--- Quote End ---  

 

 

In the datasheet they have provided a range between 5k and 25k. But then I would like to know a more specific value. Because termination resistance is vital in my application. Or else is there a pin impedance value..?
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Valued Contributor III
13 Views

 

--- Quote Start ---  

In the datasheet they have provided a range between 5k and 25k. But then I would like to know a more specific value. Because termination resistance is vital in my application. Or else is there a pin impedance value..? 

--- Quote End ---  

 

There's no "more specific" value. If you need a tightly tolerated pull-up resistor for some reason, place an external resistor.
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