Kinetis Microcontrollers中的主题 Re: Voltage and Current MK64FN1M0VLQ12

Voltage and Current MK64FN1M0VLQ12

gerardohernande — Fri, 13 Oct 2017 17:07:48 GMT

How much voltage can recive a mk64fn1m0vlq12 in its GPIO? Some people say 3.3V and others 5. I am a little confiuse, what is the best voltage to operate? And how much current a mk64fn1m0vlq12 can give in total (with all its pins high, using as outputs)?

Re: Voltage and Current MK64FN1M0VLQ12

mjbcswitzerland — Mon, 23 Oct 2017 22:01:23 GMT

Hi Gerardo

From the data sheet:

Regards

Mark

Kinetis: http://www.utasker.com/kinetis.html
K64:
- http://www.utasker.com/kinetis/FRDM-K64F.html
- http://www.utasker.com/kinetis/TWR-K64F120M.html
- http://www.utasker.com/kinetis/TEENSY_3.5.html
- http://www.utasker.com/kinetis/Hexiwear-K64F.html

Re: Voltage and Current MK64FN1M0VLQ12

Robin_Shen — Tue, 24 Oct 2017 06:47:15 GMT

The answer of Mark is right.

Also note that the port pins of MK64FN1M0VLQ12 are only 5V tolerant as inputs. The outputs are not 5V tolerant, and that includes pins configured as open-drain outputs. In output mode, if the pin is pulled above VDD, it will cause the output buffer to drive the output at VDD, which will pull-down the pin voltage to near VDD.

Best Regards,

Robin

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