About pins14 to 16 of CY8CMBR3108

[noha_3407421]

--- Inquiry background ---

CY8CMBR3108 does not have a reset terminal.

For example, I want to turn off the power when malfunctioning due to noise.

At this time, I want to turn off the power after dropping pins 14 to 16 to low level at the host.

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I want to confirm the output terminal configuration of pins 14 to 16 of CY8CMBR3108.

I understand that pins 14-16 are open drain terminals.

Q1.

Do these pins not output High in the internal settings?

*

I don't think pins 14-16 are open drain and these pins never output high.

I want to make sure that this is correct.

Best Regards,

Harukawa

[BragadeeshV · Accepted solution]

Hi noha_3407421​,

1. Pins 14, 15 and 16 are open drain drives low pin therefore it can not be driven high without an external pull up.

2. Pin 12 can be used as a reset pin during boot up. Make certain that this pin is not grounded during power-up for the device to boot up properly. After boot-up, this I/O functions as indicated by the pin name.

Hope this helps.

Regards,

Bragadeesh