<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<wire x1="0" y1="0" x2="100" y2="0" width="0" layer="20"/>
<wire x1="100" y1="0" x2="100" y2="80" width="0" layer="20"/>
<wire x1="100" y1="80" x2="0" y2="80" width="0" layer="20"/>
<wire x1="0" y1="80" x2="0" y2="0" width="0" layer="20"/>
</plain>
<libraries>
<library name="74xx-us">
<description>&lt;b&gt;TTL Devices, 74xx Series with US Symbols&lt;/b&gt;&lt;p&gt;
Based on the following sources:
&lt;ul&gt;
&lt;li&gt;Texas Instruments &lt;i&gt;TTL Data Book&lt;/i&gt;&amp;nbsp;&amp;nbsp;&amp;nbsp;Volume 1, 1996.
&lt;li&gt;TTL Data Book, Volume 2 , 1993
&lt;li&gt;National Seminconductor Databook 1990, ALS/LS Logic
&lt;li&gt;ttl 74er digital data dictionary, ECA Electronic + Acustic GmbH, ISBN 3-88109-032-0
&lt;li&gt;http://icmaster.com/ViewCompare.asp
&lt;/ul&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="DIL20">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="liron">
<description>Generated from &lt;b&gt;liron.sch&lt;/b&gt;&lt;p&gt;
by exp-lbrs.ulp</description>
<packages>
<package name="DIL28">
</package>
<package name="050_610_HH-25/50">
<description>&lt;b&gt;.050 DIP EDGE CARD CONNECTOR&lt;/b&gt; STAGGERED DIP SOLDER&lt;p&gt;
.050 [1.27mm] CONTACT CENTERS .610" INSULATEOR HEIGHT&lt;br&gt;
Source: .050 DIP EDGE CARD.pdf</description>
</package>
</packages>
</library>
<library name="big-mess-o-wires">
<packages>
<package name="IDC20">
<description>&lt;b&gt;CONNECTOR&lt;/b&gt;&lt;p&gt;
series 057 contact pc board low profile headers&lt;p&gt;
straight</description>
</package>
<package name="DB19EDGE">
<description>&lt;b&gt;SUB-D&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="SparkFun">
<packages>
<package name="0805">
</package>
</packages>
</library>
<library name="memory">
<description>&lt;b&gt;Generic Memories&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="DIL24">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="IC1" library="74xx-us" package="DIL14" value="74LS21N"/>
<element name="IC2" library="74xx-us" package="DIL14" value="74LS20N"/>
<element name="IC3" library="74xx-us" package="DIL14" value="74LS00N"/>
<element name="IC4" library="74xx-us" package="DIL20" value="74LS245N"/>
<element name="IC5" library="74xx-us" package="DIL14" value="74LS30N"/>
<element name="U$1" library="liron" package="DIL28" value="IWM"/>
<element name="X1" library="liron" package="050_610_HH-25/50" value="050_610_HH-25/50">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="J5" library="big-mess-o-wires" package="IDC20" value="IDC20"/>
<element name="R1" library="SparkFun" package="0805" value="390"/>
<element name="J6" library="big-mess-o-wires" package="DB19EDGE" value="DB19"/>
<element name="IC7" library="memory" package="DIL24" value=""/>
</elements>
<signals>
<signal name="A0">
<contactref element="X1" pad="2"/>
<contactref element="U$1" pad="3"/>
<contactref element="IC7" pad="8"/>
</signal>
<signal name="A1">
<contactref element="X1" pad="3"/>
<contactref element="U$1" pad="4"/>
<contactref element="IC1" pad="13"/>
<contactref element="IC7" pad="7"/>
</signal>
<signal name="A2">
<contactref element="X1" pad="4"/>
<contactref element="U$1" pad="5"/>
<contactref element="IC1" pad="12"/>
<contactref element="IC7" pad="6"/>
</signal>
<signal name="/IOSTROBE">
<contactref element="X1" pad="20"/>
<contactref element="IC3" pad="2"/>
<contactref element="IC3" pad="4"/>
<contactref element="IC3" pad="1"/>
</signal>
<signal name="R/W">
<contactref element="X1" pad="18"/>
<contactref element="IC4" pad="1"/>
</signal>
<signal name="A11">
<contactref element="X1" pad="13"/>
<contactref element="IC7" pad="21"/>
</signal>
<signal name="A10">
<contactref element="X1" pad="12"/>
<contactref element="IC5" pad="4"/>
<contactref element="IC7" pad="19"/>
</signal>
<signal name="A9">
<contactref element="X1" pad="11"/>
<contactref element="IC5" pad="5"/>
<contactref element="IC7" pad="22"/>
</signal>
<signal name="A8">
<contactref element="X1" pad="10"/>
<contactref element="IC5" pad="6"/>
<contactref element="IC7" pad="23"/>
</signal>
<signal name="A7">
<contactref element="X1" pad="9"/>
<contactref element="IC5" pad="1"/>
<contactref element="IC7" pad="1"/>
</signal>
<signal name="A6">
<contactref element="X1" pad="8"/>
<contactref element="IC5" pad="2"/>
<contactref element="IC7" pad="2"/>
</signal>
<signal name="A5">
<contactref element="X1" pad="7"/>
<contactref element="IC5" pad="3"/>
<contactref element="IC7" pad="3"/>
</signal>
<signal name="A4">
<contactref element="X1" pad="6"/>
<contactref element="IC1" pad="9"/>
<contactref element="IC7" pad="4"/>
</signal>
<signal name="A3">
<contactref element="X1" pad="5"/>
<contactref element="IC1" pad="10"/>
<contactref element="IC7" pad="5"/>
</signal>
<signal name="+12V">
<contactref element="X1" pad="50"/>
<contactref element="J5" pad="13"/>
<contactref element="J5" pad="15"/>
<contactref element="J6" pad="7"/>
<contactref element="J6" pad="8"/>
</signal>
<signal name="D0">
<contactref element="X1" pad="49"/>
<contactref element="IC4" pad="18"/>
</signal>
<signal name="D1">
<contactref element="X1" pad="48"/>
<contactref element="IC4" pad="17"/>
</signal>
<signal name="D4">
<contactref element="X1" pad="45"/>
<contactref element="IC4" pad="14"/>
</signal>
<signal name="D6">
<contactref element="X1" pad="43"/>
<contactref element="IC4" pad="12"/>
</signal>
<signal name="-12V">
<contactref element="X1" pad="33"/>
<contactref element="J5" pad="9"/>
<contactref element="J6" pad="5"/>
</signal>
<signal name="/RES">
<contactref element="X1" pad="31"/>
<contactref element="IC2" pad="5"/>
<contactref element="U$1" pad="23"/>
</signal>
<signal name="INTINOUT">
<contactref element="X1" pad="28"/>
<contactref element="X1" pad="23"/>
</signal>
<signal name="DMAINOUT">
<contactref element="X1" pad="27"/>
<contactref element="X1" pad="24"/>
</signal>
<signal name="GND">
<contactref element="X1" pad="26"/>
<contactref element="IC3" pad="7"/>
<contactref element="IC2" pad="7"/>
<contactref element="IC2" pad="9"/>
<contactref element="IC2" pad="10"/>
<contactref element="IC2" pad="12"/>
<contactref element="IC2" pad="13"/>
<contactref element="U$1" pad="14"/>
<contactref element="IC4" pad="10"/>
<contactref element="IC5" pad="7"/>
<contactref element="IC1" pad="7"/>
<contactref element="J5" pad="1"/>
<contactref element="J5" pad="7"/>
<contactref element="J5" pad="5"/>
<contactref element="J5" pad="3"/>
<contactref element="J6" pad="1"/>
<contactref element="J6" pad="4"/>
<contactref element="J6" pad="2"/>
<contactref element="J6" pad="3"/>
<contactref element="IC7" pad="18"/>
<contactref element="IC7" pad="12"/>
</signal>
<signal name="7M">
<contactref element="X1" pad="36"/>
<contactref element="U$1" pad="24"/>
</signal>
<signal name="Q3">
<contactref element="X1" pad="37"/>
<contactref element="R1" pad="2"/>
</signal>
<signal name="/DEVSEL">
<contactref element="X1" pad="41"/>
<contactref element="U$1" pad="7"/>
<contactref element="IC1" pad="4"/>
<contactref element="IC1" pad="5"/>
</signal>
<signal name="D7">
<contactref element="X1" pad="42"/>
<contactref element="IC4" pad="11"/>
</signal>
<signal name="D5">
<contactref element="X1" pad="44"/>
<contactref element="IC4" pad="13"/>
</signal>
<signal name="D3">
<contactref element="X1" pad="46"/>
<contactref element="IC4" pad="15"/>
</signal>
<signal name="D2">
<contactref element="X1" pad="47"/>
<contactref element="IC4" pad="16"/>
</signal>
<signal name="/IOSEL">
<contactref element="IC3" pad="5"/>
<contactref element="IC3" pad="12"/>
<contactref element="X1" pad="1"/>
</signal>
<signal name="+5V">
<contactref element="X1" pad="25"/>
<contactref element="IC3" pad="14"/>
<contactref element="IC2" pad="14"/>
<contactref element="U$1" pad="26"/>
<contactref element="IC4" pad="20"/>
<contactref element="IC5" pad="14"/>
<contactref element="IC1" pad="14"/>
<contactref element="J5" pad="11"/>
<contactref element="J6" pad="6"/>
<contactref element="IC7" pad="24"/>
</signal>
<signal name="/ENROM">
<contactref element="IC3" pad="8"/>
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="2"/>
<contactref element="IC7" pad="20"/>
</signal>
<signal name="ENCOMMON">
<contactref element="IC3" pad="11"/>
<contactref element="IC3" pad="10"/>
<contactref element="IC2" pad="1"/>
<contactref element="IC2" pad="2"/>
</signal>
<signal name="CLRCOMMON">
<contactref element="IC3" pad="13"/>
<contactref element="IC2" pad="6"/>
</signal>
<signal name="N$1">
<contactref element="IC3" pad="6"/>
<contactref element="IC3" pad="9"/>
</signal>
<signal name="IOSTROBE">
<contactref element="IC3" pad="3"/>
<contactref element="IC5" pad="11"/>
</signal>
<signal name="/HISTROBE">
<contactref element="IC5" pad="8"/>
<contactref element="IC2" pad="4"/>
</signal>
<signal name="PH0">
<contactref element="U$1" pad="1"/>
<contactref element="J5" pad="2"/>
<contactref element="J6" pad="11"/>
</signal>
<signal name="PH1">
<contactref element="J5" pad="4"/>
<contactref element="U$1" pad="28"/>
<contactref element="J6" pad="12"/>
</signal>
<signal name="PH2">
<contactref element="J5" pad="6"/>
<contactref element="U$1" pad="2"/>
<contactref element="J6" pad="13"/>
</signal>
<signal name="PH3">
<contactref element="J5" pad="8"/>
<contactref element="U$1" pad="27"/>
<contactref element="J6" pad="14"/>
</signal>
<signal name="R0">
<contactref element="IC4" pad="2"/>
<contactref element="U$1" pad="10"/>
<contactref element="IC7" pad="9"/>
</signal>
<signal name="R1">
<contactref element="IC4" pad="3"/>
<contactref element="U$1" pad="11"/>
<contactref element="IC7" pad="10"/>
</signal>
<signal name="R2">
<contactref element="IC4" pad="4"/>
<contactref element="U$1" pad="12"/>
<contactref element="IC7" pad="11"/>
</signal>
<signal name="R3">
<contactref element="IC4" pad="5"/>
<contactref element="U$1" pad="13"/>
<contactref element="IC7" pad="13"/>
</signal>
<signal name="R4">
<contactref element="IC4" pad="6"/>
<contactref element="U$1" pad="15"/>
<contactref element="IC7" pad="14"/>
</signal>
<signal name="R5">
<contactref element="IC4" pad="7"/>
<contactref element="U$1" pad="16"/>
<contactref element="IC7" pad="15"/>
</signal>
<signal name="R6">
<contactref element="IC4" pad="8"/>
<contactref element="U$1" pad="17"/>
<contactref element="IC7" pad="16"/>
</signal>
<signal name="R7">
<contactref element="IC4" pad="9"/>
<contactref element="U$1" pad="18"/>
<contactref element="IC7" pad="17"/>
</signal>
<signal name="WRDATA">
<contactref element="J5" pad="18"/>
<contactref element="U$1" pad="8"/>
<contactref element="J6" pad="19"/>
</signal>
<signal name="/WRREQ">
<contactref element="U$1" pad="9"/>
<contactref element="J5" pad="10"/>
<contactref element="J6" pad="15"/>
</signal>
<signal name="/ENABLE1">
<contactref element="J5" pad="14"/>
<contactref element="U$1" pad="20"/>
<contactref element="J6" pad="17"/>
</signal>
<signal name="SENSE">
<contactref element="J5" pad="20"/>
<contactref element="J5" pad="19"/>
<contactref element="U$1" pad="21"/>
<contactref element="J6" pad="10"/>
</signal>
<signal name="RDDATA">
<contactref element="J5" pad="16"/>
<contactref element="U$1" pad="22"/>
<contactref element="J6" pad="18"/>
</signal>
<signal name="N$2">
<contactref element="U$1" pad="25"/>
<contactref element="R1" pad="1"/>
</signal>
<signal name="/ENBUF">
<contactref element="IC1" pad="6"/>
<contactref element="IC4" pad="19"/>
</signal>
<signal name="A1-4">
<contactref element="IC1" pad="8"/>
<contactref element="IC5" pad="12"/>
</signal>
<signal name="NC1(EN2)">
<contactref element="J5" pad="17"/>
<contactref element="J6" pad="9"/>
</signal>
<signal name="NC2(SEL)">
<contactref element="J5" pad="12"/>
<contactref element="J6" pad="16"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
