topic Re: MKL17 VREFH in Kinetis Microcontrollers

MKL17 VREFH

publius1 — Sun, 31 Jan 2016 14:01:20 GMT

Hi,

I'm planning on using a MKL17 64 pin device for a new design.

I want to connect VREFH to an external accurate reference (over temperature).

I cannot seem to find the minimal and maximal VREFH voltages with respect to Vdda in the datasheet.

Does anybody know where the VREFH/VREFL minimal and maximal operating conditions are specified?

Best regards,

Koen

Re: MKL17 VREFH

miduo — Mon, 01 Feb 2016 08:21:57 GMT

Sorry we do not have the data regarding the minimal and maximal VREFH voltages with respect to Vdda. Only we provide is the the VREFH min 1.13V and max VDDA. The ADC will have correct value when working within this range.

Re: MKL17 VREFH

publius1 — Mon, 01 Feb 2016 12:50:12 GMT

Hi Fang,

Thanks for your response.

Where did you get these values from? Could you provide the document ID?

Thanks,

Koen

Re: MKL17 VREFH

crystinstoll — Tue, 02 Feb 2016 04:32:29 GMT

The technical specs are found here:

https://www.google.com/url?sa=t&source=web&rct=j&url=http://cache.freescale.com/files/32bit/doc/data_sheet/KL17P64M48SF6…

Re: MKL17 VREFH

publius1 — Wed, 03 Feb 2016 19:00:01 GMT

Hi Crystin,

Thanks.

Since I was planning on using the 32kb device I looked in that datasheet, there is no mention of the Vrefh range in that version though.