Pic16f66k77 input supply voltage

[prabhukaran3]

Hi guys...
Currently i am working with Pic16f66k22 Tqfp package IC for my project... In datasheet they hav mentioned as operating voltage is 1.8 to 5.5..(i think so)... But in inbuilt voltage regulator session, they mentioned as Core is working with 3.3v... How its possible... I need to work with 1.8 voltage na what i hav to do.. This is my doubt... But i am working with 5V... I enabled Inbuild Voltage regulator by hardware... I think this is enouf to power up Pic... Any ideas appriciated... Thanks in advance...

 

[tpetar]

You want to say PIC18F66K77, there is no PIC16F66K77..

In this document starting from page 17 you will find interesting informations :

AN1416 Low-Power Design Guide
https://ww1.microchip.com/downloads/en/AppNotes/01416a.pdf



Best regards,
Peter

:wink:

 

[prabhukaran3]

Dear tpetar,
Thanks for your reply... I have one common doubt regarding datasheet... Hav u red ULN2003A datasheet? In that sheet there is specification about input voltage to operation of IC and input logic voltage to drive the pins.. How can i find... in many datasheets i m having confusion while reading those things.. Is any points to suggest me or i need to no too many technical things about ICs... I hope u ill help me .. Thanks tpetar