XIO2001: CLKREQ pins, External Pullup

takanobu fukuoka

Prodigy 70 points

Part Number: XIO2001

Hello,

I want to know the recommended external pullup value for CLKREQ.

The resistance value cannot be calculated because the Low-level output current(IOL) of the CLKREQ pin is unknown.

What is the recommended external pullup value for CLKREQ?

Also, what is the IOL value?

Best Regards,

T. Fukuoka

over 3 years ago

+1 Nasser Mohammadi over 3 years ago

TI__Guru* 93670 points

Greetings,

Recommendation is to use 10K ohm pull up to VAUX. PCI express electro-mechanical specification calls for minimum 4mA IOL @ 0.4V VOL. XIO2001 is compatible with this spec however i am not able to find data to show device has been characterized to meet this requirement.

Regards ,, Nasser

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XIO2001: CLKREQ pins, External Pullup