I am looking for an application circuit for CD40109B for Voltage level translation from 12V to 3.3V and vice-versa. Is it possible with this IC? Please let me know.
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Above is the schematic. Just wanted to make sure if it works like this:
When A is high (3.3V), Aout =12V
and When A is low (0V), Aout =0V? Am I right?
Is there any IC like this with only 1 level shifter instead of 4?
Also if I want to use this IC for doing a 12 V to 3.3V translation for a different application-will interchanging Vcc and Vdd work?
Please let me know. Thanks!
You are correct with your implementation. There are single channel translators but this is the only device that can operate at the 12 V you desire. The supplies can be interchanged, you can use 12 V on VCC or VDD depending on whether you are doing up translation or down translation.