piclist 2001\01\19\050011a >
Thread: RA4 as output attached to TTL logic, pull-up minimum consumption
www.piclist.com/techref/microchip/ios.htm?key=output
face picon face BY : Alan B. Pearce email (remove spam text)



>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?

Somewhere between 4k7 and 10k should be suitable unless you have a particularly
noisy environment around the track between the two chips. This would give
somewhere between 1ma and 0.5ma current draw when the pin is pulled to ground.

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Subject (change) RA4 as output attached to TTL logic, pull-up minimum consumption

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