Hello Team,
Something I don't understand from the datasheet.
In case the wakeup pin/function is not required in my design. Should it be pulled up or down?
In the datasheet, it said that this pin must have a 1k pull up to VDD. However, the chip is enabled by LOW from what I understand.
Please advise back, thanks in advance.
KR,
Shai
已解决! 转到解答。
Hello Shai,
Yes, if you are not using the /WAKEUP function, you can just drive the /WAKEUP pin low.
If the state of the /WAKEUP input pin is high, then the device will be in the power-down mode.
Best regards,
Tomas
Respectfully, this answer is confusing. Section 7.1.9 of the datasheet states that the SC18IM700 can only enter power-down mode if a specific message is received. It also states that a 1k pullup is required from !WAKEUP to VDD.
Can the !WAKEUP pin be tied directly to ground to completely inhibit the power-down mode?
Thank you.
Hello Shai,
Yes, if you are not using the /WAKEUP function, you can just drive the /WAKEUP pin low.
If the state of the /WAKEUP input pin is high, then the device will be in the power-down mode.
Best regards,
Tomas