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Topic: Invert output from 74hc139 2:4 decoder (Read 1 time) previous topic - next topic


I need a 2:4 decoder and the only one I can find is the 74hc139, but it's outputs are low/on high/off.
I need this reversed because the outputs from the decoder will drive Clock inputs to 4 74hc374's flip flops, which are active high.

Do I use some pnp transistors (and resistors?) to invert the signal, or is there a better way?

Thanks in advance.


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