You are here

GPIO minimum current | Cypress Semiconductor

GPIO minimum current

Summary: 1 Reply, Latest post by junbing on 30 Jul 2015 05:57 AM PDT
Verified Answers: 0
Last post
Log in to post new comments.
novaJul's picture
3 posts

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

junbing's picture
3 posts

From CYUSB3014 datasheet:

the input high is 0.65*VC,

the input low is 0.25* VCC,

the maxim input current is 1uA.

Log in to post new comments.