Low cost bidirectional level shifter I2C and other

[NavMicroSystems]

If you are after a solution for a level shifter here is an interresting Application Note from PHILIPS
AN97055

With SOT23 FETs and 805 (or 1206) Resistors it takes minimal PCB space.

[Ioannis]

Thanks Ralph for sharing. Nice pdf.

Ioannis

[Ioannis]

Yes it takes little space. And the new link is this

www.adafruit.com/datasheets/an97055.pdf

Ioannis

[Dave]

Or you could use one of these... I use them all the time. They make a 4 channel and an 8 channel version.

Oops, I can't upload the data sheet, It's too big. The part number is TSX0102 for the 2 channel one and TSX0104 for the 4 channel one. They are made by Texas Instruments. Try it, Youl'l like it...