and unless you have LOTS of experience, avoid automatic direction
(bidirectional) translators - they are very sensitivie to pullups,
downs etc. I think best avoided unless there is no option. I2C is where
they are useful.
But otherwise, stick to unidirectional level translating as Andrew suggests.
There are few solutions that you cannot translate with just a single
transistor .
The chip translators are good for speed and edge rate.
On 29/01/2022 7:20 am, Andrew Kalman wrote:
I find that the best way to handle these translations is to use one of
TI's level translators ... each chip has two power supply rails, and
translation is done transparently across the chip, and there is good max
voltage overprotection on both sides as well. I use them a lot to handle
5V <-> 3.3V level issues.
Try the SN74LVC8T245PWR for unidirectional level translating . They also
have some bidirectional ones ...
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