AnsweredAssumed Answered

I2C: 5 volts to 3.3. volts conversion

Question asked by s.alex on May 7, 2012
Latest reply on May 8, 2012 by s.alex
Hi
I'm using SRF08 ultrasonic distance sensor. This device returns the distance measure via I2C bus, but it works with 5 volts, so I'm afraid I could burn my STM32VL Discovery board. I wanted to know if this board could support such voltage or, in other case, if you know some Integrated Circuit or schema to solve the problem. I've seen a circuit on Internet but the CMOS transistors it uses are not sold in my electronic shop.

Thank you so much.

Outcomes