You can name active low input pins with EAGLE's inverting pin symbol.

Alternatively, you can have a line over the pin name so it looks like most data sheets have it and you don't have to use conventions like /EN for enable low.

For example, !MCLR!/VPP/RE3 typed in as a pin name will result in MCLR/VPP/RE3 shown on the device symbol's pin name but only MCLR will have a bar over top of it indicating active low.

Hope that helps! Feel free to pos rep me at anytime

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Hi Speakerguy,

this method has just one minor advantage. If you name the pin you won't have the pad number on the schematic, which is normally used for trouble shooting. Doing that with the pin describtion requires a datasheet of the chip to know where you have to put your probe.
I prefer having both info of the device, pin name and pad name (number).To indicate an inverted input or output I use 0.12mm thickness and draw a horizontal line above the text using 0.635mm grid size and letter size of 1.4224 mm using the names layer. To make it look better I switch to grid size 0.3175 when everything is done and adjust the line length to the actual text length.

Hans

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