<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.2">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="48.8825" y2="0" width="0" layer="20"/>
<wire x1="48.8825" y1="0" x2="48.8825" y2="19.675" width="0" layer="20"/>
<wire x1="48.8825" y1="19.675" x2="0" y2="19.675" width="0" layer="20"/>
<wire x1="0" y1="19.675" x2="0" y2="0" width="0" layer="20"/>
</plain>
<libraries>
<library name="atmel">
<packages>
<package name="DIL28-3">
<description>&lt;B&gt;Dual In Line&lt;/B&gt; 0.3 inch</description>
</package>
</packages>
</library>
<library name="resistor">
<packages>
<package name="C025-025X050">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.5 mm, outline 2.5 x 5 mm</description>
</package>
<package name="0204V">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0204, grid 2.5 mm</description>
</package>
</packages>
</library>
<library name="crystal">
<packages>
<package name="HC18U-V">
<description>&lt;b&gt;CRYSTAL&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="holes">
<packages>
<package name="2,8">
<description>&lt;b&gt;MOUNTING HOLE&lt;/b&gt; 2.8 mm with drill center</description>
</package>
</packages>
</library>
<library name="diode">
<packages>
<package name="D-5">
<description>&lt;b&gt;DIODE&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="E2,5-5">
<description>&lt;b&gt;ELECTROLYTIC CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 2.54 mm, diameter 5 mm</description>
</package>
</packages>
</library>
<library name="capacitor-wima">
<description>&lt;b&gt;WIMA Capacitors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="C2.5-2">
<description>&lt;B&gt;MKS2&lt;/B&gt;, 5 x 2.5 mm, grid 2.54 mm</description>
</package>
</packages>
</library>
<library name="wirepad">
<description>&lt;b&gt;Single Pads&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1,6/0,9">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
<package name="2,15/1,0">
<description>&lt;b&gt;THROUGH-HOLE PAD&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="atmel" package="DIL28-3" value="MEGA8-P">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R1" library="resistor" package="0204V" value="68">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R2" library="resistor" package="0204V" value="68">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R3" library="resistor" package="0204V" value="1k5">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="R4" library="resistor" package="0204V" value="1M">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C2" library="rcl" package="E2,5-5" value="4u7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C3" library="capacitor-wima" package="C2.5-2" value="100n">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C4" library="resistor" package="C025-025X050" value="22p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C5" library="resistor" package="C025-025X050" value="22p">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="Q1" library="crystal" package="HC18U-V" value="12MHz">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="C1" library="rcl" package="E2,5-5" value="4u7">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="D1" library="diode" package="D-5" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="VIN" library="wirepad" package="1,6/0,9" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="VGND" library="wirepad" package="1,6/0,9" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="VOUT" library="wirepad" package="1,6/0,9" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="H1" library="holes" package="2,8" value="MOUNT-HOLE2.8"/>
<element name="H2" library="holes" package="2,8" value="MOUNT-HOLE2.8"/>
<element name="CDATA4" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CDATA3" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CDATA2" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CDATA1" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="LATCH" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="CLOCK" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="MULTISEL" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="UD+" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="UD-" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="UVCC" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="UGND" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SGND" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="SVCC" library="wirepad" package="2,15/1,0" value="">
<attribute name="NAME"/>
<attribute name="VALUE"/>
</element>
<element name="H3" library="holes" package="2,8" value="MOUNT-HOLE2.8"/>
</elements>
<signals>
<signal name="N$4">
<contactref element="R1" pad="2"/>
<contactref element="R3" pad="1"/>
<contactref element="UD+" pad="1"/>
</signal>
<signal name="N$5">
<contactref element="R2" pad="2"/>
<contactref element="R4" pad="2"/>
<contactref element="UD-" pad="1"/>
</signal>
<signal name="N$10">
<contactref element="IC1" pad="9"/>
<contactref element="Q1" pad="2"/>
<contactref element="C4" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="Q1" pad="1"/>
<contactref element="C5" pad="2"/>
<contactref element="IC1" pad="10"/>
</signal>
<signal name="N$2">
<contactref element="IC1" pad="4"/>
<contactref element="R2" pad="1"/>
</signal>
<signal name="+5V">
<contactref element="C2" pad="+"/>
<contactref element="D1" pad="C"/>
<contactref element="VIN" pad="1"/>
<contactref element="UVCC" pad="1"/>
<contactref element="SVCC" pad="1"/>
</signal>
<signal name="GND">
<contactref element="R4" pad="1"/>
<contactref element="C3" pad="1"/>
<contactref element="C1" pad="-"/>
<contactref element="C2" pad="-"/>
<contactref element="C5" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="IC1" pad="22"/>
<contactref element="IC1" pad="8"/>
<contactref element="VGND" pad="1"/>
<contactref element="UGND" pad="1"/>
<contactref element="SGND" pad="1"/>
</signal>
<signal name="+3V3">
<contactref element="IC1" pad="7"/>
<contactref element="IC1" pad="20"/>
<contactref element="C3" pad="2"/>
<contactref element="R3" pad="2"/>
<contactref element="C1" pad="+"/>
<contactref element="D1" pad="A"/>
<contactref element="VOUT" pad="1"/>
</signal>
<signal name="N$3">
<contactref element="IC1" pad="18"/>
<contactref element="MULTISEL" pad="1"/>
</signal>
<signal name="N$7">
<contactref element="IC1" pad="23"/>
<contactref element="CDATA4" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="IC1" pad="24"/>
<contactref element="CDATA3" pad="1"/>
</signal>
<signal name="N$9">
<contactref element="CDATA2" pad="1"/>
<contactref element="IC1" pad="25"/>
</signal>
<signal name="N$12">
<contactref element="IC1" pad="26"/>
<contactref element="CDATA1" pad="1"/>
</signal>
<signal name="N$14">
<contactref element="LATCH" pad="1"/>
<contactref element="IC1" pad="27"/>
</signal>
<signal name="N$15">
<contactref element="IC1" pad="28"/>
<contactref element="CLOCK" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="IC1" pad="3"/>
<contactref element="IC1" pad="2"/>
<contactref element="R1" pad="1"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
