Arduino Forum

Topics => Product Design => Topic started by: Macrotus on Jul 25, 2013, 05:10 pm

Title: 74HC595 missing Ground and VCC pins in Eagle
Post by: Macrotus on Jul 25, 2013, 05:10 pm
I downloaded the free version of Eagle yesterday. I created a new project and added a schematic file there. From the library I added a 74HC595 shift register. It has all the pins except GND and VCC.

Why is it lacking those and how do I get them?
Title: Re: 74HC595 missing Ground and VCC pins in Eagle
Post by: 68tjs on Jul 25, 2013, 05:26 pm
In some models configuration the power pins are hidden and automatically connected to the power rails.
It is possible to make them visible, look for the right option in the menus.

Or use Kicad which is open source and has no limitation (1) as Eagle which is a commercial product.

(1)
- No maximum number of component
- multi-sheets (Eagle free only accepts one sheet)
- multi-layer no limitation -> Eagle -free only double side.
Title: Re: 74HC595 missing Ground and VCC pins in Eagle
Post by: CrossRoads on Jul 25, 2013, 07:06 pm
In Eagle - right click on a part, select Invoke, select the power pins.
Title: Re: 74HC595 missing Ground and VCC pins in Eagle
Post by: Macrotus on Jul 26, 2013, 12:19 pm
Thanks.

Can't the pins be attached to the chip?
Title: Re: 74HC595 missing Ground and VCC pins in Eagle
Post by: CrossRoads on Jul 26, 2013, 05:00 pm
You can make up an eagle symbol to do that. Symbols I create show all pins.
Title: Re: 74HC595 missing Ground and VCC pins in Eagle
Post by: Macrotus on Jul 28, 2013, 11:18 am
Ok, thanks!