<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
</plain>
<libraries>
<library name="dec-con">
<packages>
<package name="EDGE-CON4">
<description>Double-Height DEC edge connector</description>
</package>
<package name="DOUBLE-LONG">
</package>
<package name="DIL24">
<description>24 Pin Wide DIP</description>
</package>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="micro-harris">
<packages>
<package name="DIL40">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="optocoupler">
<packages>
<package name="DIL06">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="rcl">
<packages>
<package name="0207/10">
<description>&lt;b&gt;RESISTOR&lt;/b&gt;&lt;p&gt;
type 0207, grid 10 mm</description>
</package>
</packages>
</library>
<library name="jumper">
<packages>
<package name="07">
<description>&lt;b&gt;JUMPER&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="transistor">
<packages>
<package name="TO92L">
<description>&lt;b&gt;TO-92&lt;/b&gt;&lt;p&gt;
grid 5.08 mm</description>
</package>
</packages>
</library>
<library name="con-lstb">
<packages>
<package name="MA20-1">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
<package name="MA05-1">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
</library>
<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="DIL20">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="DIL16">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="E$2" library="dec-con" package="DOUBLE-LONG" value=""/>
<element name="EDGE$" library="dec-con" package="EDGE-CON4" value=""/>
<element name="IC1" library="74xx-us" package="DIL20" value="74LS240N"/>
<element name="IC4" library="74xx-us" package="DIL20" value="74S240N"/>
<element name="IC3" library="74xx-us" package="DIL20" value="74LS240N"/>
<element name="IC2" library="74xx-us" package="DIL20" value="74LS240N"/>
<element name="IC8" library="74xx-us" package="DIL16" value="74LS257N"/>
<element name="IC6" library="74xx-us" package="DIL16" value="74LS157N"/>
<element name="IC10" library="74xx-us" package="DIL14" value="74LS00N"/>
<element name="IC16" library="74xx-us" package="DIL14" value="74LS00N"/>
<element name="IC9" library="dec-con" package="DIL14" value="74LS38N"/>
<element name="IC7" library="74xx-us" package="DIL16" value="74LS257N"/>
<element name="IC11" library="74xx-us" package="DIL14" value="74LS08N"/>
<element name="IC26" library="74xx-us" package="DIL14" value="74LS08N"/>
<element name="IC12" library="74xx-us" package="DIL14" value="74LS27N"/>
<element name="IC13" library="74xx-us" package="DIL14" value="74LS74N"/>
<element name="IC15" library="74xx-us" package="DIL14" value="74LS74N"/>
<element name="IC17" library="74xx-us" package="DIL14" value="74LS74N"/>
<element name="IC22" library="74xx-us" package="DIL14" value="74LS74N"/>
<element name="IC14" library="74xx-us" package="DIL14" value="74LS10N"/>
<element name="IC18" library="74xx-us" package="DIL14" value="74LS10N"/>
<element name="IC19" library="74xx-us" package="DIL16" value="74LS75N"/>
<element name="IC21" library="74xx-us" package="DIL14" value="74LS02N"/>
<element name="IC20" library="micro-harris" package="DIL40" value="6402">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="IC28" library="optocoupler" package="DIL06" value="4N26">
<attribute name="OC_NEWARK" value="72K9946"/>
<attribute name="MPN" value="4N35"/>
<attribute name="MF" value="FAIRCHILD SEMICONDUCTOR"/>
<attribute name="OC_FARNELL" value="1328375"/>
</element>
<element name="IC29" library="optocoupler" package="DIL06" value="4N26">
<attribute name="OC_NEWARK" value="72K9946"/>
<attribute name="MPN" value="4N35"/>
<attribute name="MF" value="FAIRCHILD SEMICONDUCTOR"/>
<attribute name="OC_FARNELL" value="1328375"/>
</element>
<element name="IC27" library="micro-harris" package="DIL16" value="4702">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="R15" library="rcl" package="0207/10" value=""/>
<element name="R14" library="rcl" package="0207/10" value=""/>
<element name="V6" library="jumper" package="07" value=""/>
<element name="V7" library="jumper" package="07" value=""/>
<element name="R34" library="rcl" package="0207/10" value=""/>
<element name="R35" library="rcl" package="0207/10" value=""/>
<element name="H1" library="jumper" package="07" value="J7MM"/>
<element name="R12" library="rcl" package="0207/10" value=""/>
<element name="R41" library="rcl" package="0207/10" value=""/>
<element name="R17" library="rcl" package="0207/10" value=""/>
<element name="V4" library="jumper" package="07" value=""/>
<element name="V3" library="jumper" package="07" value=""/>
<element name="R16" library="rcl" package="0207/10" value=""/>
<element name="R26" library="rcl" package="0207/10" value=""/>
<element name="A8" library="jumper" package="07" value="J7MM"/>
<element name="R25" library="rcl" package="0207/10" value=""/>
<element name="R23" library="rcl" package="0207/10" value=""/>
<element name="R21" library="rcl" package="0207/10" value=""/>
<element name="R19" library="rcl" package="0207/10" value=""/>
<element name="A9" library="jumper" package="07" value="J7MM"/>
<element name="A10" library="jumper" package="07" value="J7MM"/>
<element name="A11" library="jumper" package="07" value="J7MM"/>
<element name="A12" library="jumper" package="07" value="J7MM"/>
<element name="R32" library="rcl" package="0207/10" value=""/>
<element name="A3" library="jumper" package="07" value="J7MM"/>
<element name="R29" library="rcl" package="0207/10" value=""/>
<element name="R28" library="rcl" package="0207/10" value=""/>
<element name="R27" library="rcl" package="0207/10" value=""/>
<element name="R31" library="rcl" package="0207/10" value=""/>
<element name="A5" library="jumper" package="07" value="J7MM"/>
<element name="A6" library="jumper" package="07" value="J7MM"/>
<element name="A7" library="jumper" package="07" value="J7MM"/>
<element name="A4" library="jumper" package="07" value="J7MM"/>
<element name="IC5" library="dec-con" package="DIL24" value="8130"/>
<element name="NP" library="jumper" package="07" value=""/>
<element name="EPS" library="jumper" package="07" value=""/>
<element name="TSB" library="jumper" package="07" value=""/>
<element name="NB1" library="jumper" package="07" value=""/>
<element name="NB2" library="jumper" package="07" value=""/>
<element name="Q1" library="transistor" package="TO92L" value="MPSA06"/>
<element name="V5" library="jumper" package="07" value=""/>
<element name="R18" library="rcl" package="0207/10" value=""/>
<element name="IC23" library="dec-con" package="DIL14" value="1488N"/>
<element name="IC24" library="dec-con" package="DIL14" value="1489N"/>
<element name="IC25" library="dec-con" package="DIL14" value="74LS196"/>
<element name="SV1" library="con-lstb" package="MA20-1" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="SV2" library="con-lstb" package="MA05-1" value="">
<attribute name="OC_NEWARK" value="unknown"/>
<attribute name="MPN" value=""/>
<attribute name="MF" value=""/>
<attribute name="OC_FARNELL" value="unknown"/>
</element>
<element name="R3" library="rcl" package="0207/10" value=""/>
<element name="R4" library="rcl" package="0207/10" value=""/>
<element name="R1" library="rcl" package="0207/10" value=""/>
<element name="R2" library="rcl" package="0207/10" value=""/>
</elements>
<signals>
<signal name="GND">
<contactref element="IC1" pad="10"/>
<contactref element="IC4" pad="10"/>
<contactref element="IC3" pad="10"/>
<contactref element="IC2" pad="10"/>
<contactref element="IC1" pad="1"/>
<contactref element="IC1" pad="19"/>
<contactref element="EDGE$" pad="BT1"/>
<contactref element="EDGE$" pad="BM1"/>
<contactref element="EDGE$" pad="BC2"/>
<contactref element="IC8" pad="8"/>
<contactref element="IC6" pad="8"/>
<contactref element="IC10" pad="7"/>
<contactref element="IC16" pad="7"/>
<contactref element="IC9" pad="7"/>
<contactref element="IC7" pad="8"/>
<contactref element="IC11" pad="7"/>
<contactref element="IC26" pad="7"/>
<contactref element="IC12" pad="7"/>
<contactref element="IC13" pad="7"/>
<contactref element="IC15" pad="7"/>
<contactref element="IC17" pad="7"/>
<contactref element="IC22" pad="7"/>
<contactref element="IC14" pad="7"/>
<contactref element="IC18" pad="7"/>
<contactref element="IC19" pad="12"/>
<contactref element="IC21" pad="7"/>
<contactref element="IC20" pad="3"/>
<contactref element="IC27" pad="8"/>
<contactref element="V4" pad="1"/>
<contactref element="V3" pad="1"/>
<contactref element="A8" pad="1"/>
<contactref element="A9" pad="1"/>
<contactref element="A10" pad="1"/>
<contactref element="A11" pad="1"/>
<contactref element="A12" pad="1"/>
<contactref element="A3" pad="1"/>
<contactref element="A5" pad="1"/>
<contactref element="A6" pad="1"/>
<contactref element="A7" pad="1"/>
<contactref element="A4" pad="1"/>
<contactref element="IC5" pad="12"/>
<contactref element="IC5" pad="11"/>
<contactref element="IC20" pad="16"/>
<contactref element="TSB" pad="1"/>
<contactref element="EPS" pad="1"/>
<contactref element="NP" pad="1"/>
<contactref element="NB2" pad="1"/>
<contactref element="NB1" pad="1"/>
<contactref element="IC3" pad="1"/>
<contactref element="IC3" pad="19"/>
<contactref element="IC2" pad="1"/>
<contactref element="IC2" pad="19"/>
<contactref element="Q1" pad="1"/>
<contactref element="EDGE$" pad="AJ1"/>
<contactref element="EDGE$" pad="AM1"/>
<contactref element="V6" pad="1"/>
<contactref element="V7" pad="1"/>
<contactref element="V5" pad="1"/>
<contactref element="IC12" pad="1"/>
<contactref element="IC12" pad="2"/>
<contactref element="IC23" pad="7"/>
<contactref element="IC24" pad="12"/>
<contactref element="IC24" pad="13"/>
<contactref element="IC25" pad="7"/>
<contactref element="IC25" pad="3"/>
<contactref element="IC25" pad="11"/>
<contactref element="IC25" pad="4"/>
<contactref element="IC25" pad="10"/>
<contactref element="IC28" pad="4"/>
<contactref element="IC24" pad="7"/>
</signal>
<signal name="VCC">
<contactref element="IC4" pad="20"/>
<contactref element="IC3" pad="20"/>
<contactref element="IC2" pad="20"/>
<contactref element="EDGE$" pad="BV1"/>
<contactref element="IC1" pad="20"/>
<contactref element="IC8" pad="16"/>
<contactref element="IC6" pad="16"/>
<contactref element="IC10" pad="14"/>
<contactref element="IC16" pad="14"/>
<contactref element="IC9" pad="14"/>
<contactref element="IC7" pad="16"/>
<contactref element="IC11" pad="14"/>
<contactref element="IC26" pad="14"/>
<contactref element="IC12" pad="14"/>
<contactref element="IC13" pad="14"/>
<contactref element="IC15" pad="14"/>
<contactref element="IC17" pad="14"/>
<contactref element="IC22" pad="14"/>
<contactref element="IC14" pad="14"/>
<contactref element="IC18" pad="14"/>
<contactref element="IC19" pad="5"/>
<contactref element="IC21" pad="14"/>
<contactref element="IC20" pad="1"/>
<contactref element="IC27" pad="16"/>
<contactref element="R17" pad="1"/>
<contactref element="R16" pad="1"/>
<contactref element="R26" pad="1"/>
<contactref element="R25" pad="1"/>
<contactref element="R23" pad="1"/>
<contactref element="R21" pad="1"/>
<contactref element="R19" pad="1"/>
<contactref element="R32" pad="1"/>
<contactref element="R29" pad="1"/>
<contactref element="R28" pad="1"/>
<contactref element="R27" pad="1"/>
<contactref element="R31" pad="1"/>
<contactref element="IC5" pad="24"/>
<contactref element="IC20" pad="34"/>
<contactref element="EDGE$" pad="AA2"/>
<contactref element="R15" pad="1"/>
<contactref element="R14" pad="1"/>
<contactref element="R18" pad="1"/>
<contactref element="IC16" pad="13"/>
<contactref element="IC16" pad="2"/>
<contactref element="IC24" pad="9"/>
<contactref element="IC25" pad="14"/>
<contactref element="IC25" pad="1"/>
</signal>
<signal name="!BDAL8">
<contactref element="EDGE$" pad="BM2"/>
<contactref element="IC1" pad="11"/>
</signal>
<signal name="!BDAL9">
<contactref element="EDGE$" pad="BN2"/>
<contactref element="IC1" pad="8"/>
</signal>
<signal name="!BDAL10">
<contactref element="EDGE$" pad="BP2"/>
<contactref element="IC1" pad="6"/>
</signal>
<signal name="!BDAL11">
<contactref element="EDGE$" pad="BR2"/>
<contactref element="IC1" pad="4"/>
</signal>
<signal name="!BDAL12">
<contactref element="EDGE$" pad="BS2"/>
<contactref element="IC1" pad="2"/>
</signal>
<signal name="!BDAL7">
<contactref element="IC3" pad="17"/>
<contactref element="EDGE$" pad="BL2"/>
<contactref element="IC4" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="IC4" pad="1"/>
<contactref element="IC4" pad="19"/>
<contactref element="IC26" pad="3"/>
</signal>
<signal name="!BDAL6">
<contactref element="IC3" pad="15"/>
<contactref element="EDGE$" pad="BK2"/>
<contactref element="IC4" pad="5"/>
</signal>
<signal name="N$16">
</signal>
<signal name="N$17">
<contactref element="R15" pad="2"/>
<contactref element="IC7" pad="2"/>
<contactref element="V7" pad="2"/>
</signal>
<signal name="N$18">
<contactref element="R14" pad="2"/>
<contactref element="IC7" pad="5"/>
<contactref element="V6" pad="2"/>
</signal>
<signal name="N$20">
<contactref element="R34" pad="2"/>
<contactref element="R35" pad="2"/>
</signal>
<signal name="!BHALT">
<contactref element="H1" pad="1"/>
<contactref element="EDGE$" pad="AP1"/>
</signal>
<signal name="BDMG">
<contactref element="EDGE$" pad="AR2"/>
<contactref element="EDGE$" pad="AS2"/>
</signal>
<signal name="N$21">
<contactref element="R17" pad="2"/>
<contactref element="V4" pad="2"/>
<contactref element="IC6" pad="11"/>
</signal>
<signal name="N$24">
<contactref element="R16" pad="2"/>
<contactref element="V3" pad="2"/>
<contactref element="IC6" pad="5"/>
</signal>
<signal name="A8">
<contactref element="R26" pad="2"/>
<contactref element="A8" pad="2"/>
<contactref element="IC5" pad="9"/>
</signal>
<signal name="A9">
<contactref element="R25" pad="2"/>
<contactref element="A9" pad="2"/>
<contactref element="IC5" pad="7"/>
</signal>
<signal name="A10">
<contactref element="R23" pad="2"/>
<contactref element="A10" pad="2"/>
<contactref element="IC5" pad="5"/>
</signal>
<signal name="A11">
<contactref element="R21" pad="2"/>
<contactref element="A11" pad="2"/>
<contactref element="IC5" pad="3"/>
</signal>
<signal name="A3">
<contactref element="R32" pad="2"/>
<contactref element="A3" pad="2"/>
<contactref element="IC5" pad="15"/>
</signal>
<signal name="A5">
<contactref element="R29" pad="2"/>
<contactref element="A5" pad="2"/>
<contactref element="IC5" pad="17"/>
</signal>
<signal name="A6">
<contactref element="R28" pad="2"/>
<contactref element="A6" pad="2"/>
<contactref element="IC5" pad="19"/>
</signal>
<signal name="A7">
<contactref element="R27" pad="2"/>
<contactref element="A7" pad="2"/>
<contactref element="IC5" pad="21"/>
</signal>
<signal name="A4">
<contactref element="R31" pad="2"/>
<contactref element="A4" pad="2"/>
<contactref element="IC5" pad="23"/>
</signal>
<signal name="!WXBF0">
<contactref element="IC20" pad="23"/>
</signal>
<signal name="DA0">
<contactref element="IC20" pad="26"/>
</signal>
<signal name="DA1">
<contactref element="IC20" pad="27"/>
</signal>
<signal name="DA2">
<contactref element="IC20" pad="28"/>
</signal>
<signal name="DA3">
<contactref element="IC20" pad="29"/>
</signal>
<signal name="DA4">
<contactref element="IC20" pad="30"/>
</signal>
<signal name="DA5">
<contactref element="IC20" pad="31"/>
</signal>
<signal name="DA7">
<contactref element="IC20" pad="33"/>
</signal>
<signal name="NB1">
<contactref element="IC20" pad="38"/>
<contactref element="NB1" pad="2"/>
</signal>
<signal name="NP">
<contactref element="IC20" pad="35"/>
<contactref element="NP" pad="2"/>
</signal>
<signal name="EPS">
<contactref element="IC20" pad="39"/>
<contactref element="EPS" pad="2"/>
</signal>
<signal name="TSB">
<contactref element="IC20" pad="36"/>
<contactref element="TSB" pad="2"/>
</signal>
<signal name="!RRBF0">
<contactref element="IC20" pad="4"/>
</signal>
<signal name="!DR_R0">
<contactref element="IC20" pad="18"/>
<contactref element="IC18" pad="6"/>
</signal>
<signal name="INIT0">
<contactref element="IC20" pad="21"/>
</signal>
<signal name="RDATA0">
<contactref element="IC20" pad="20"/>
</signal>
<signal name="CLK0">
<contactref element="IC20" pad="40"/>
<contactref element="IC20" pad="17"/>
</signal>
<signal name="XRDY0">
<contactref element="IC20" pad="22"/>
<contactref element="IC8" pad="13"/>
</signal>
<signal name="DR0">
<contactref element="IC20" pad="19"/>
</signal>
<signal name="OE0">
<contactref element="IC20" pad="15"/>
</signal>
<signal name="FE0">
<contactref element="IC20" pad="14"/>
<contactref element="Q1" pad="2"/>
</signal>
<signal name="PE0">
<contactref element="IC20" pad="13"/>
</signal>
<signal name="XDATA0">
<contactref element="IC20" pad="25"/>
</signal>
<signal name="NB2">
<contactref element="IC20" pad="37"/>
<contactref element="NB2" pad="2"/>
</signal>
<signal name="B12">
<contactref element="IC1" pad="18"/>
<contactref element="IC5" pad="2"/>
</signal>
<signal name="B11">
<contactref element="IC5" pad="4"/>
<contactref element="IC1" pad="16"/>
</signal>
<signal name="B10">
<contactref element="IC5" pad="6"/>
<contactref element="IC1" pad="14"/>
</signal>
<signal name="B9">
<contactref element="IC5" pad="8"/>
<contactref element="IC1" pad="12"/>
</signal>
<signal name="B8">
<contactref element="IC5" pad="10"/>
<contactref element="IC1" pad="9"/>
</signal>
<signal name="B3">
<contactref element="IC5" pad="14"/>
<contactref element="IC3" pad="14"/>
</signal>
<signal name="B5">
<contactref element="IC5" pad="16"/>
<contactref element="IC3" pad="18"/>
</signal>
<signal name="B6">
<contactref element="IC5" pad="18"/>
<contactref element="IC3" pad="5"/>
<contactref element="IC20" pad="32"/>
</signal>
<signal name="B7">
<contactref element="IC5" pad="20"/>
<contactref element="IC3" pad="3"/>
</signal>
<signal name="B4">
<contactref element="IC5" pad="22"/>
<contactref element="IC3" pad="16"/>
</signal>
<signal name="!BDAL1">
<contactref element="EDGE$" pad="AV2"/>
<contactref element="IC3" pad="13"/>
<contactref element="IC4" pad="7"/>
</signal>
<signal name="!BDAL5">
<contactref element="EDGE$" pad="BJ2"/>
<contactref element="IC3" pad="2"/>
<contactref element="IC4" pad="18"/>
</signal>
<signal name="!BDAL4">
<contactref element="EDGE$" pad="BH2"/>
<contactref element="IC3" pad="4"/>
<contactref element="IC4" pad="16"/>
</signal>
<signal name="!BDAL3">
<contactref element="EDGE$" pad="BF2"/>
<contactref element="IC3" pad="6"/>
<contactref element="IC4" pad="14"/>
</signal>
<signal name="!BDAL2">
<contactref element="EDGE$" pad="BE2"/>
<contactref element="IC3" pad="8"/>
<contactref element="IC4" pad="12"/>
</signal>
<signal name="!BDAL0">
<contactref element="EDGE$" pad="AU2"/>
<contactref element="IC3" pad="11"/>
<contactref element="IC4" pad="9"/>
</signal>
<signal name="!BDAL14">
<contactref element="EDGE$" pad="BU2"/>
</signal>
<signal name="!BDAL15">
<contactref element="EDGE$" pad="BV2"/>
</signal>
<signal name="!BDAL13">
<contactref element="EDGE$" pad="BT2"/>
</signal>
<signal name="BDCOK">
<contactref element="EDGE$" pad="BA1"/>
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<signal name="N$80">
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</signals>
</board>
</drawing>
</eagle>
