TCAL6416: Open drain/ Push-pull

Far Hung

Expert 7250 points

Part Number: TCAL6416
Other Parts Discussed in Thread: TCA6416, , TCA6416A

Tool/software:

Hi Expert,

I want to check that if the device can support open drain? And what is different between TCA6416 and TCAL6416?

Dell is confusing below, highlight in yellow.

Far

2 months ago

0 Tyler Townsend 2 months ago

TI__Guru 50768 points

Hi Far,

TCAL6416 has agile IO capabilities

TCA6416A does not have agile IO capabilities.

TCAL6416 can program port-wise open-drain or push-pull outputs. They are default push-pull outputs, however, if register 0x4F ODEN bits are set, the outputs will only use the nFET to pull LOW on the IO, it will release high.

If you need individual control of the output pins i.e. some outputs need push-pull others need open-drain, please reference this app note: https://www.ti.com.cn/cn/lit/an/slvafl2/slvafl2.pdf?ts=1722876123872&ref_url=https%253A%252F%252Fwww.google.com%252F

This app note applies to either TCAL6416 or TCA6416A.

Regards,

Tyler

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TCAL6416: Open drain/ Push-pull