Searching \ for 'Interconnecting 5v PIC <---> 3v PIC' in subject line. ()
Make payments with PayPal - it's fast, free and secure! Help us get a faster server
FAQ page: www.piclist.com/techref/microchip/devices.htm?key=pic
Search entire site for: 'Interconnecting 5v PIC <---> 3v PIC'.

Truncated match.
PICList Thread
'Interconnecting 5v PIC <---> 3v PIC'
1999\01\18@133933 by Mark A Winters

flavicon
face
Hello All,

I have an application where I want a PIC 16F84 running at 5v to talk to a
12C508 running at 3.3v. I need to connect one output line from the 16F84 to
an input on the '508, and another line vice-versa.

Any problems or considerations I should be aware of?

Thanks!
Mark Winters

1999\01\18@200634 by sayer

picon face
Mark A Winters wrote:
>
> Hello All,
>
> I have an application where I want a PIC 16F84 running at 5v to talk to a
> 12C508 running at 3.3v. I need to connect one output line from the 16F84 to
> an input on the '508, and another line vice-versa.
>
> Any problems or considerations I should be aware of?
>
> Thanks!
> Mark Winters

Hi Mark,

current limiting resistor on the first line (5v -> 3.3v) should do it.
As I recall, 3.3 is HIGH for a 5v PIC.

maybe have a look at AN??? 'Interfacing to AC power lines'

Stefan Sayer

More... (looser matching)
- Last day of these posts
- In 1999 , 2000 only
- Today
- New search...