1 Reply Latest reply on Jul 30, 2015 5:57 AM by content.librarian

    GPIO minimum current

      I've been looking a lot to datasheets and cypress forums lately and i never seen specification for GPIO input.


      I want to know what is the minimum and maximum voltage and current to consider an input HIGH and LOW.


      I am working with a PIR motion sensor from Paralax. the only way i was able to make the output to high is with the 3.3V from the board wich is really 3.1V and 54.57mA. my PIR sensor output 0.7mA. I wanted to know if this is possible to directly connect it without a transistor because i find 54.57mA really high for an gpio input. I'am testing on pin 53 to 56 of the devboard.


      I am working with Cypress EZ-USB® FX3™ SuperSpeed Explorer Kit. 




      Thank you