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You are here: Home / Topics / Low Power PIC Voltage Levels

Low Power PIC Voltage Levels

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Microcontroller › PIC › Low Power PIC Voltage Levels

  • This topic has 3 replies, 2 voices, and was last updated 10 years, 5 months ago by AJISH ALFRED.
Viewing 4 posts - 1 through 4 (of 4 total)
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  • January 4, 2015 at 5:57 pm #3384
    Kyle
    Participant

    I’m using a low power PIC in my project, specifically the PIC16LF1786, which has a VDD of 3.3V. What I’ve been wondering is, do the I/O voltage levels match VDD? For instance is a logic level HIGH 3.3V? or 5V?

     

    I suppose I could supply different voltages and see what triggers it… the data sheet isn’t a big help in this situation since its for both the low and high power versions.

    January 5, 2015 at 5:26 am #12493
    AJISH ALFRED
    Participant

    Hi,

    If VDD is 3.3V how come it could give 5V at IO pins?

    January 10, 2015 at 11:13 pm #12516
    Kyle
    Participant

    By using a charge pump…

    January 12, 2015 at 6:07 am #12521
    AJISH ALFRED
    Participant

    Don’t think this microcontroller has charge pump connected to I/O ports, however they are used for flash memory write/erase.

    It is clearly written in the datasheet under “30.4 DC Characteristics: PIC16(L)F1784/6/7-I/E”

    that the Maximum Output low voltage will be 0.6V and Minimum Output high voltage will be VDD – 0.7V.

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