topic PN5180 : Limiting value in NFC

PN5180 : Limiting value

sugawara — Fri, 06 Mar 2020 09:08:26 GMT

Hi.

I have a question about PN5180.

In datasheet, There isn't IO pin ratings at The Limiting value.

All VIL is 0V at The Characteristics. Do I need to follow this?

Isn't it acceptable for minus tens of mV?

Thank you anyway.

Re: PN5180 : Limmiting value

Kan_Li — Wed, 11 Mar 2020 03:14:15 GMT

Hi Shiori,

I am not sure which version of data sheet you are referring to, but the latest version has the data you are looking for, for example,

Please kindly refer to https://www.nxp.com/docs/en/data-sheet/PN5180A0XX-C1-C2.pdf and https://www.nxp.com/docs/en/data-sheet/PN5180A0XX-C3.pdf for more details.

Hope that helps,

Have a great day,
Kan

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Re: PN5180 : Limmiting value

sugawara — Mon, 23 Mar 2020 09:50:32 GMT

Hi, Thank you for your advice.

Sorry, That's not the answer I was looking for.

I'd like to know minimum limit.

Many IC chips can apply a minimum limit of -0.3V.

I think that PN5180 also can apply -0.3V, but I can't find it.

Re: PN5180 : Limiting value

Kan_Li — Wed, 25 Mar 2020 03:23:47 GMT

Hi Shiori Sugawara,

The data sheet specifies the VILs to 0V, so I think better follow the spec, otherwise you have to take your own risk.

Have a great day,
Kan