Eternauta said:Take a look at this application note from Philips AN10156.pdf (72k) and motorola AN2433.pdf (289k).
Are you sure that this circuit wll work in all worst cases?tsehonkit said:I had tried serial resistor network to lower the 5v i/o signal (eg 2k plus 3k resister) and just connect 3.3v i/o signal between 2k and 3k resister.
5V i/o
/
\
/ 2K
\
|
--------- 3.3V i/o
/
\
/ 3K
\
|
GND
dinosaur said:Hi All,
Any one can suggest a simple circuit technique or component solution to do the following signaling requirement:
1. 5V signal will be level-shift to 3.3V
2. 3.3V signal will pass-thru directly without attentuation.
Thanks.
arturt134 said:Simple method is: serial resistor (few kiloohms, ie. 10kR) and diode (Schottky diode is the best) to +3.3V (A - resistor, K - +3.3V).
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