Ed said:
Hi,
I need to convert between 3.3V and 5V and vice versa. Does anyone
know of any chips that will do this? The chip has to be a standard
DIP package.
Thanks for any info,
Hi,
I dont know about a chip that does this, but I have had to do it for a
project. There are some cases that dont require much hardware.....
5v open collector to 3.3 volt input: just add a pullup resistor.
3.3 open collector to 5 volt input: same, just add a pullup.
3.3 to 5 volt ttl level or 74hct serieas cmos: just connect, levels are
ok. This will not work for 74hc or cd40xx parts (at least not reliably).
5 volt ttl/cmos to 3.3 input: wont work unless input specified to work
if driven overvoltage. Maybe using a 2-10k series resistor to limit
current would work in most other cases.
Regards,
Luhan