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.
3.3Vcc
___
|
\
/ Resistor
\ ~1-10kohm
/
\
K A |
3.3V or 5V signal in >----|<|----+------> 3.3V signal out
Diode
3.3Vcc
___
|
\
/ Resistor
\ ~1-10kohm
/
\
K A |
3.3V or 5V signal in 1 >----|<|----+------> 3.3V signal out
|
Diode |
|
|
K A |
3.3V or 5V signal in 2 >----|<|----+
|
Diode |
|
|
K A |
3.3V or 5V signal in 3 >----|<|----+
Diode
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