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Altera_Forum's avatar
Altera_Forum
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15 years ago

High currents at input pins

Hi All,

I´m using a EPM 1270 TQFP. The problem is, that the part is drawing a lot of current at the input pins. All is working, but at my resistors I can see a high voltage drop. How can I activate buffers or how can I activate the Schmitt trigger for the inputs?

I´m using Quartus II for programming and schematic drawing.

VCC is 3.3V

1 Reply

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    What's "a lot of current"? Can you be more specific?

    Unless weak pull-up resistors are activated, the inputs can be expected to show high impedance. If you observe something different, you probably assigned wrong pins.