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Thread: RA4 as output attached to TTL logic, pull-up minimum consumption
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face BY : Jeszs email (remove spam text)


Dear piclisters,

I am using RA4 as output pin to attack a TTL chip. Most of the time this pin shall be 0 V.

Since RA4 is open drain output, I need some kind of pull-up circuit.
Frequency is not an issue but could be in the future.
The basic pull-up resistor would be continuously consuming energy and this is what I see 'ugly' in my design.

Could you recomend me alternative solutions for minimum consumption?

Thank you very much in advance!
Ciao

--------------------
Jesús Gonzalo
INSA, Ingeniería y Servicios Aeroespaciales, SA
León (SPAIN)
--------------------


<010201c081ff$722b2e50$1500a8c0@jesus> base64

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