IWR6843AOP: NERROR_OUT pin status at the device reset

Akihiko Fujinaka

Expert 3475 points

Part Number: IWR6843AOP

Hello expert,

Our customer found this is Hi-z (Open Drain) , In the reset state of IWR6843AOP, is this pin show Hi-Z or Low ?

I think it will be Hi-Z, but wants to confirm this.

Regards, A.Fujinaka

over 4 years ago

0 Ishita Kochar over 4 years ago

TI__Mastermind 31680 points

Hello A.Fujinaka,

As the Datasheet mentions, this is an open drain output and external pull up is needed. It is typically connected to the external host processor to indicate fault status.

Regards,

Ishita

0 Akihiko Fujinaka over 4 years ago

TI__Expert 3475 points

Hello Ishita,

Thanks for your reply, can I double check the pin status is an open drain output at the chip reset status?

Regards, A.Fujinaka

0 Akihiko Fujinaka over 4 years ago in reply to Akihiko Fujinaka

TI__Expert 3475 points

Hello Ishita,

Could you please respond to the question?

Regards, A.Fujinaka

0 Ishita Kochar over 4 years ago in reply to Akihiko Fujinaka

TI__Mastermind 31680 points

Hello A.Fujinaka,

Sorry for the delay due to holidays.

As I said, This is an open drain output signal with external pull up resistance requirement.

Do you mean the state of the device when the nerror_out pin has been asserted because of a fault and it leads to a device reset?

Regards,

Ishita

0 Akihiko Fujinaka over 4 years ago in reply to Ishita Kochar

TI__Expert 3475 points

Hello Ishita,

I know external pull up is requried because of the open drain output.

My question is, this pin is Hi-z or low ouput when the device is under reset status.

Regards, A.Fujinaka

0 Ishita Kochar over 4 years ago in reply to Akihiko Fujinaka

TI__Mastermind 31680 points

Hello A.Fujinaka,

It is Hi-z.

Regards,

Ishita

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IWR6843AOP: NERROR_OUT pin status at the device reset