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Is it possible to use a TXS0202 chip to do voltage translation between an external USB host (my PC) and an embedded microcontroller that is running at 1.8V?
The microcontroller supports USB device mode, but I realized I cannot just hook it up directly to the D+ and D- signals because the micro is only running at 1.8V and the USB signals are 3.3V. Will this work? The mention of inter-chip USB support for this part has me confused.
Thanks in advance!
Hi John
IC- USB is just addendum to USB 2.0 spec. It is basically lower power option and meant for chip to chip communication. Max length of the bus cannot exceed 10cm in length. IC-USB is sometimes also referred to as USB-IC or Inter-chip USB.
TXS0202 is recommended for your application.