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3.3/5v interfacing

thread248-7485

3.3/5v interfacing

3.3/5v interfacing

(OP)
Hi
I'm trying to connect two 5V IO devices to a third device which works at 3.3V IO, and is not "5V-IO-tolerant", in a bus topology. Can anybody suggest me of a safe way to interconnect these devices?

Thanx
Replies continue below

Recommended for you

RE: 3.3/5v interfacing

Suggestions:
1. Opto interfaces
2. Electronic transformers
3. DC-DC converter
4. Potentiometer?
5. Etc.

RE: 3.3/5v interfacing

Your best bet is a DC-DC converter............Try PICO or DALE but there are many good manufacturers of these devices.

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