<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.4">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="25.324" y2="0" width="0" layer="20"/>
<wire x1="25.324" y1="0" x2="25.324" y2="25.39" width="0" layer="20"/>
<wire x1="25.324" y1="25.39" x2="0" y2="25.39" width="0" layer="20"/>
<wire x1="0" y1="25.39" x2="0" y2="0" width="0" layer="20"/>
<text>3.3/5V</text>
<text>GND</text>
<text>SQW</text>
<text>SCL</text>
<text>SDA</text>
<text>Solder jumper 
to enable 
pullups</text>
<text>DS1339 RTC
  Breakout</text>
<text>Sridhar
Rajagopal</text>
<text>Rev C</text>
</plain>
<libraries>
<library name="Maxim_By_element14_Batch_1">
<description>Developed by element14 :&lt;br&gt;
element14 CAD Library consolidation.ulp
at 30/07/2012 11:04:18</description>
<packages>
<package name="SOP65P490X110-8N">
</package>
</packages>
</library>
<library name="SparkFun-FreqCtrl">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find crystals and oscillators and other things that go "tick".&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="TC26H">
<description>&lt;b&gt;CRYSTAL&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun">
<packages>
<package name="1X05">
</package>
</packages>
</library>
<library name="SparkFun-Capacitors">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="0805">
</package>
</packages>
</library>
<library name="SparkFun-Passives">
<description>&lt;h3&gt;SparkFun Electronics' preferred foot prints&lt;/h3&gt;
In this library you'll find resistors, capacitors, inductors, test points, jumper pads, etc.&lt;br&gt;&lt;br&gt;
We've spent an enormous amount of time creating and checking these footprints and parts, but it is the end user's responsibility to ensure correctness and suitablity for a given componet or application. If you enjoy using this library, please buy one of our products at www.sparkfun.com.
&lt;br&gt;&lt;br&gt;
&lt;b&gt;Licensing:&lt;/b&gt; CC v3.0 Share-Alike You are welcome to use this library for commercial purposes. For attribution, we ask that when you begin to sell your device using our footprint, you email us with a link to the product being sold. We want bragging rights that we helped (in a very small part) to create your 8th world wonder. We would like the opportunity to feature your device on our homepage.</description>
<packages>
<package name="0805">
</package>
<package name="SJ_2S-NO">
<description>Small solder jumper with no paste layer so it will open after reflow.</description>
</package>
</packages>
</library>
<library name="adafruit">
<packages>
<package name="CR1220-THM">
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="U$1" library="Maxim_By_element14_Batch_1" package="SOP65P490X110-8N" value="DS1339U"/>
<element name="Y1" library="SparkFun-FreqCtrl" package="TC26H" value="32.768k"/>
<element name="JP1" library="SparkFun" package="1X05" value="">
<attribute name="VALUE"/>
</element>
<element name="C1" library="SparkFun-Capacitors" package="0805" value="0.1uf">
<attribute name="NAME"/>
</element>
<element name="R1" library="SparkFun-Passives" package="0805" value="4.7k">
<attribute name="NAME"/>
</element>
<element name="R2" library="SparkFun-Passives" package="0805" value="4.7k">
<attribute name="NAME"/>
</element>
<element name="R3" library="SparkFun-Passives" package="0805" value="4.7k">
<attribute name="NAME"/>
</element>
<element name="SJ1" library="SparkFun-Passives" package="SJ_2S-NO" value="SOLDERJUMPERNO">
<attribute name="NAME"/>
</element>
<element name="U$3" library="adafruit" package="CR1220-THM" value="CR1220">
<attribute name="VALUE"/>
</element>
</elements>
<signals>
<signal name="N$1">
<contactref element="Y1" pad="2"/>
<contactref element="U$1" pad="1"/>
</signal>
<signal name="N$2">
<contactref element="Y1" pad="1"/>
<contactref element="U$1" pad="2"/>
</signal>
<signal name="GND">
<contactref element="C1" pad="2"/>
<contactref element="U$1" pad="4"/>
<contactref element="U$3" pad="-"/>
<contactref element="JP1" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="C1" pad="1"/>
<contactref element="SJ1" pad="2"/>
<contactref element="U$1" pad="8"/>
<contactref element="JP1" pad="2"/>
</signal>
<signal name="N$5">
<contactref element="R1" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="SJ1" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="U$3" pad="+2"/>
<contactref element="U$1" pad="3"/>
<contactref element="U$3" pad="+1"/>
</signal>
<signal name="SDA">
<contactref element="JP1" pad="4"/>
<contactref element="R2" pad="1"/>
<contactref element="U$1" pad="5"/>
</signal>
<signal name="SCL">
<contactref element="JP1" pad="5"/>
<contactref element="R3" pad="1"/>
<contactref element="U$1" pad="6"/>
</signal>
<signal name="SQW">
<contactref element="JP1" pad="3"/>
<contactref element="R1" pad="1"/>
<contactref element="U$1" pad="7"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
