Dear support team
Could you provide onstant current value of TXD?
I want to know the strength of the pull-up.
Regards
Tomohiro Nagasawa
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Dear support team
Could you provide onstant current value of TXD?
I want to know the strength of the pull-up.
Regards
Tomohiro Nagasawa
Nagasawa-san,
The current when in recessive and dominant mode is listed in the datasheet as IIH and IIL, respectively, and the VCC voltage during these conditions is listed. Since the voltage on TXD in the low state is 0V, and we know the IIL (low level current) and the VCC voltage, Ohm's law can be used to find the pull-up. With the typical value, 5.5V / 25uA = 2.2Mohms.
Does this answer your question?
Regards,
Hello Eric-san
Thank you for quick response.
Let me confirm. Pull up value is 5.5V/25uA=220kΩ?
Regards
Tomohiro Nagasawa