I have a micro-controller system with GPIO interface. It does not have input/output protection (a buffer). The maximum voltage allowed is 3.3V and it does not tolerate 5V. Therefore I am looking for current and voltage protection for its I/O pins, I2C and SPI pins. Currently I am considering the following item:
ADG3300: Low Voltage 1.15 V to 5.5 V, 8-Channel Bidirectional Logic Level Translator
Is there a break out board/ kit for it or something equivalent? They do not have SIP package.
Does any one have a better solution for that?
I was also considering using a simple bi-directional multiplexer. What do you think?
Of course, I am trying to be prudent with number of parts to use.
Thank you for your time.