To make a W5500 Eagle CAD Library (2) – Package

1. What is Package?

• Package shows the real size of a part, and is composed of pad, drill, design and etc. It is printed on the PCB and soldered with a part. So, you must be very careful of making the package with exact size.

2. To create a package

• Open the library that you created in the ‘Symbol’ posting, and click the “Package” button. Input W5500 and save it.

3. To draw a package

• Firstly, set the grid. For the unit, we are recommending 0.5mm or 0.1mm (1inch = 1000mil = 25.4mm = 25400mic)

• By referring to the datasheet of a part, you need to know the size and location information of a part.

• You can add a pad by using “Smd’ button at the edit tool. Locate a pad in any place.

• Click the “info” button at the edit tool, and modify the information of the pad as below. Use the pad #1 as a guideline(location : -4.45, 2.75) and add other pads. The size of pad for W5500 is 1.5 x 0.3 (mm).

• The space between two pins of W5500 is 0.5mm. If you locate 12 pins for one side, it’s like below.

• Add all pads for 4 sides as below.

4. To mark the characteristics of a part

• As shown in below, mark the characteristics of a part. The circle shows the location of pin #1. The number of the corner indicates the starting number of a side.

• Click the “text” at the edit tool. Input “>Name” and select & locate ’25 tName’

• Click the “Text”. Input “>Value” and select and locate ’27 tValue’

• Now, we are finishing with making the package of W5500.