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+<?xml version="1.0" encoding="utf-8"?>
+<!DOCTYPE eagle SYSTEM "eagle.dtd">
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+<description>&lt;b&gt;TTL Devices, 74xx Series with European 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>
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+</packages>
+</library>
+</libraries>
+<attributes>
+</attributes>
+<variantdefs>
+</variantdefs>
+<classes>
+<class number="0" name="default" width="0" drill="0">
+</class>
+</classes>
+<designrules name="default">
+<description language="en">&lt;b&gt;EAGLE Design Rules&lt;/b&gt;
+&lt;p&gt;
+The default Design Rules have been set to cover
+a wide range of applications. Your particular design
+may have different requirements, so please make the
+necessary adjustments and save your customized
+design rules under a new name.
+</description>
+<param name="layerSetup" value="(1*16)"/>
+<param name="mtCopper" value="0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm 0.035mm"/>
+<param name="mtIsolate" value="1.5mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm 0.15mm 0.2mm"/>
+<param name="mdWireWire" value="8mil"/>
+<param name="mdWirePad" value="8mil"/>
+<param name="mdWireVia" value="8mil"/>
+<param name="mdPadPad" value="8mil"/>
+<param name="mdPadVia" value="8mil"/>
+<param name="mdViaVia" value="8mil"/>
+<param name="mdSmdPad" value="8mil"/>
+<param name="mdSmdVia" value="8mil"/>
+<param name="mdSmdSmd" value="8mil"/>
+<param name="mdViaViaSameLayer" value="8mil"/>
+<param name="mnLayersViaInSmd" value="2"/>
+<param name="mdCopperDimension" value="40mil"/>
+<param name="mdDrill" value="8mil"/>
+<param name="mdSmdStop" value="0mil"/>
+<param name="msWidth" value="10mil"/>
+<param name="msDrill" value="0.6mm"/>
+<param name="msMicroVia" value="9.99mm"/>
+<param name="msBlindViaRatio" value="0.5"/>
+<param name="rvPadTop" value="0.25"/>
+<param name="rvPadInner" value="0.25"/>
+<param name="rvPadBottom" value="0.25"/>
+<param name="rvViaOuter" value="0.25"/>
+<param name="rvViaInner" value="0.25"/>
+<param name="rvMicroViaOuter" value="0.25"/>
+<param name="rvMicroViaInner" value="0.25"/>
+<param name="rlMinPadTop" value="10mil"/>
+<param name="rlMaxPadTop" value="20mil"/>
+<param name="rlMinPadInner" value="10mil"/>
+<param name="rlMaxPadInner" value="20mil"/>
+<param name="rlMinPadBottom" value="10mil"/>
+<param name="rlMaxPadBottom" value="20mil"/>
+<param name="rlMinViaOuter" value="8mil"/>
+<param name="rlMaxViaOuter" value="20mil"/>
+<param name="rlMinViaInner" value="8mil"/>
+<param name="rlMaxViaInner" value="20mil"/>
+<param name="rlMinMicroViaOuter" value="4mil"/>
+<param name="rlMaxMicroViaOuter" value="20mil"/>
+<param name="rlMinMicroViaInner" value="4mil"/>
+<param name="rlMaxMicroViaInner" value="20mil"/>
+<param name="psTop" value="-1"/>
+<param name="psBottom" value="-1"/>
+<param name="psFirst" value="-1"/>
+<param name="psElongationLong" value="100"/>
+<param name="psElongationOffset" value="100"/>
+<param name="mvStopFrame" value="1"/>
+<param name="mvCreamFrame" value="0"/>
+<param name="mlMinStopFrame" value="4mil"/>
+<param name="mlMaxStopFrame" value="4mil"/>
+<param name="mlMinCreamFrame" value="0mil"/>
+<param name="mlMaxCreamFrame" value="0mil"/>
+<param name="mlViaStopLimit" value="0mil"/>
+<param name="srRoundness" value="0"/>
+<param name="srMinRoundness" value="0mil"/>
+<param name="srMaxRoundness" value="0mil"/>
+<param name="slThermalIsolate" value="10mil"/>
+<param name="slThermalsForVias" value="0"/>
+<param name="dpMaxLengthDifference" value="10mm"/>
+<param name="dpGapFactor" value="2.5"/>
+<param name="checkGrid" value="0"/>
+<param name="checkAngle" value="0"/>
+<param name="checkFont" value="1"/>
+<param name="checkRestrict" value="1"/>
+<param name="useDiameter" value="13"/>
+<param name="maxErrors" value="999999"/>
+</designrules>
+<autorouter>
+<pass name="Default">
+<param name="RoutingGrid" value="50mil"/>
+<param name="tpViaShape" value="round"/>
+<param name="PrefDir.1" value="|"/>
+<param name="PrefDir.2" value="0"/>
+<param name="PrefDir.3" value="0"/>
+<param name="PrefDir.4" value="0"/>
+<param name="PrefDir.5" value="0"/>
+<param name="PrefDir.6" value="0"/>
+<param name="PrefDir.7" value="0"/>
+<param name="PrefDir.8" value="0"/>
+<param name="PrefDir.9" value="0"/>
+<param name="PrefDir.10" value="0"/>
+<param name="PrefDir.11" value="0"/>
+<param name="PrefDir.12" value="0"/>
+<param name="PrefDir.13" value="0"/>
+<param name="PrefDir.14" value="0"/>
+<param name="PrefDir.15" value="0"/>
+<param name="PrefDir.16" value="-"/>
+<param name="cfVia" value="8"/>
+<param name="cfNonPref" value="5"/>
+<param name="cfChangeDir" value="2"/>
+<param name="cfOrthStep" value="2"/>
+<param name="cfDiagStep" value="3"/>
+<param name="cfExtdStep" value="0"/>
+<param name="cfBonusStep" value="1"/>
+<param name="cfMalusStep" value="1"/>
+<param name="cfPadImpact" value="4"/>
+<param name="cfSmdImpact" value="4"/>
+<param name="cfBusImpact" value="0"/>
+<param name="cfHugging" value="3"/>
+<param name="cfAvoid" value="4"/>
+<param name="cfPolygon" value="10"/>
+<param name="cfBase.1" value="0"/>
+<param name="cfBase.2" value="1"/>
+<param name="cfBase.3" value="1"/>
+<param name="cfBase.4" value="1"/>
+<param name="cfBase.5" value="1"/>
+<param name="cfBase.6" value="1"/>
+<param name="cfBase.7" value="1"/>
+<param name="cfBase.8" value="1"/>
+<param name="cfBase.9" value="1"/>
+<param name="cfBase.10" value="1"/>
+<param name="cfBase.11" value="1"/>
+<param name="cfBase.12" value="1"/>
+<param name="cfBase.13" value="1"/>
+<param name="cfBase.14" value="1"/>
+<param name="cfBase.15" value="1"/>
+<param name="cfBase.16" value="0"/>
+<param name="mnVias" value="20"/>
+<param name="mnSegments" value="9999"/>
+<param name="mnExtdSteps" value="9999"/>
+<param name="mnRipupLevel" value="10"/>
+<param name="mnRipupSteps" value="100"/>
+<param name="mnRipupTotal" value="100"/>
+</pass>
+<pass name="Follow-me" refer="Default" active="yes">
+</pass>
+<pass name="Busses" refer="Default" active="yes">
+<param name="cfNonPref" value="4"/>
+<param name="cfBusImpact" value="4"/>
+<param name="cfHugging" value="0"/>
+<param name="mnVias" value="0"/>
+</pass>
+<pass name="Route" refer="Default" active="yes">
+</pass>
+<pass name="Optimize1" refer="Default" active="yes">
+<param name="cfVia" value="99"/>
+<param name="cfExtdStep" value="10"/>
+<param name="cfHugging" value="1"/>
+<param name="mnExtdSteps" value="1"/>
+<param name="mnRipupLevel" value="0"/>
+</pass>
+<pass name="Optimize2" refer="Optimize1" active="yes">
+<param name="cfNonPref" value="0"/>
+<param name="cfChangeDir" value="6"/>
+<param name="cfExtdStep" value="0"/>
+<param name="cfBonusStep" value="2"/>
+<param name="cfMalusStep" value="2"/>
+<param name="cfPadImpact" value="2"/>
+<param name="cfSmdImpact" value="2"/>
+<param name="cfHugging" value="0"/>
+</pass>
+<pass name="Optimize3" refer="Optimize2" active="yes">
+<param name="cfChangeDir" value="8"/>
+<param name="cfPadImpact" value="0"/>
+<param name="cfSmdImpact" value="0"/>
+</pass>
+<pass name="Optimize4" refer="Optimize3" active="yes">
+<param name="cfChangeDir" value="25"/>
+</pass>
+</autorouter>
+<elements>
+<element name="IC1" library="74xx-eu" package="SO16" value="74AC165D" x="64.77" y="60.325" rot="R270"/>
+<element name="IC2" library="74xx-eu" package="SO16" value="74HC595D" x="24.13" y="62.865" rot="R90"/>
+<element name="IC3" library="74xx-eu" package="SO16" value="74HC595D" x="64.77" y="44.45" rot="R270"/>
+<element name="IC4" library="74xx-eu" package="SO16" value="74HC595D" x="24.13" y="39.37" rot="R90"/>
+<element name="IC5" library="memory-idt" package="SO28-3" value="" x="44.45" y="46.99" rot="R90">
+<attribute name="OC_NEWARK" value="34M6449" x="44.45" y="46.99" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="MPN" value="IDT71256SA20YG" x="44.45" y="46.99" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="MF" value="" x="44.45" y="46.99" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="OC_FARNELL" value="1218010" x="44.45" y="46.99" size="1.778" layer="27" rot="R90" display="off"/>
+</element>
+<element name="IC6" library="memory-idt" package="DIL28-6" value="" x="87.63" y="47.625" rot="R90">
+<attribute name="OC_NEWARK" value="unknown" x="87.63" y="47.625" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="MPN" value="" x="87.63" y="47.625" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="MF" value="" x="87.63" y="47.625" size="1.778" layer="27" rot="R90" display="off"/>
+<attribute name="OC_FARNELL" value="unknown" x="87.63" y="47.625" size="1.778" layer="27" rot="R90" display="off"/>
+</element>
+</elements>
+<signals>
+<signal name="GND">
+<contactref element="IC1" pad="8"/>
+<contactref element="IC2" pad="8"/>
+<contactref element="IC3" pad="8"/>
+<contactref element="IC4" pad="8"/>
+<contactref element="IC5" pad="14"/>
+<wire x1="49.765" y1="55.245" x2="59.69" y2="55.245" width="0.4064" layer="1"/>
+<wire x1="59.69" y1="55.245" x2="60.325" y2="55.88" width="0.4064" layer="1"/>
+<wire x1="60.325" y1="55.88" x2="61.6966" y2="55.88" width="0.4064" layer="1"/>
+<wire x1="27.2034" y1="67.31" x2="29.21" y2="67.31" width="0.4064" layer="1"/>
+<via x="29.21" y="67.31" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="29.21" y1="67.31" x2="29.21" y2="43.815" width="0.4064" layer="16"/>
+<via x="29.21" y="43.815" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="29.21" y1="43.815" x2="27.2034" y2="43.815" width="0.4064" layer="1"/>
+<wire x1="61.6966" y1="40.005" x2="59.69" y2="40.005" width="0.4064" layer="1"/>
+<via x="59.69" y="40.005" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="59.69" y1="40.005" x2="59.69" y2="55.245" width="0.4064" layer="16"/>
+<via x="59.69" y="55.245" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="59.69" y1="55.245" x2="59.69" y2="67.31" width="0.4064" layer="16"/>
+<wire x1="59.69" y1="67.31" x2="29.21" y2="67.31" width="0.4064" layer="1"/>
+<via x="59.69" y="67.31" extent="1-16" drill="0.6" shape="square"/>
+<contactref element="IC6" pad="14"/>
+<wire x1="95.25" y1="64.135" x2="27.2034" y2="43.815" width="0" layer="19" extent="1-1"/>
+</signal>
+<signal name="VCC">
+<contactref element="IC1" pad="16"/>
+<contactref element="IC2" pad="16"/>
+<contactref element="IC3" pad="16"/>
+<contactref element="IC4" pad="16"/>
+<contactref element="IC5" pad="28"/>
+<wire x1="20.32" y1="34.925" x2="21.0566" y2="34.925" width="0.4064" layer="1"/>
+<wire x1="21.0566" y1="58.42" x2="14.605" y2="58.42" width="0.4064" layer="1"/>
+<wire x1="14.605" y1="58.42" x2="13.97" y2="57.785" width="0.4064" layer="1"/>
+<wire x1="13.97" y1="57.785" x2="13.97" y2="35.56" width="0.4064" layer="1"/>
+<wire x1="13.97" y1="35.56" x2="14.605" y2="34.925" width="0.4064" layer="1"/>
+<wire x1="14.605" y1="34.925" x2="17.145" y2="34.925" width="0.4064" layer="1"/>
+<wire x1="17.145" y1="34.925" x2="21.0566" y2="34.925" width="0.4064" layer="1"/>
+<wire x1="39.135" y1="38.735" x2="36.83" y2="38.735" width="0.4064" layer="1"/>
+<via x="36.83" y="38.735" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="36.83" y1="38.735" x2="36.83" y2="26.67" width="0.4064" layer="16"/>
+<via x="36.83" y="26.67" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="67.8434" y1="48.895" x2="70.485" y2="48.895" width="0.4064" layer="1"/>
+<wire x1="70.485" y1="48.895" x2="71.12" y2="49.53" width="0.4064" layer="1"/>
+<wire x1="71.12" y1="49.53" x2="71.12" y2="64.135" width="0.4064" layer="1"/>
+<wire x1="71.12" y1="64.135" x2="70.485" y2="64.77" width="0.4064" layer="1"/>
+<wire x1="70.485" y1="64.77" x2="67.8434" y2="64.77" width="0.4064" layer="1"/>
+<wire x1="36.83" y1="26.67" x2="17.145" y2="26.67" width="0.4064" layer="1"/>
+<wire x1="17.145" y1="26.67" x2="16.51" y2="27.305" width="0.4064" layer="1"/>
+<wire x1="16.51" y1="27.305" x2="16.51" y2="34.29" width="0.4064" layer="1"/>
+<wire x1="16.51" y1="34.29" x2="17.145" y2="34.925" width="0.4064" layer="1"/>
+<wire x1="36.83" y1="26.67" x2="70.485" y2="26.67" width="0.4064" layer="1"/>
+<wire x1="70.485" y1="26.67" x2="71.12" y2="27.305" width="0.4064" layer="1"/>
+<wire x1="71.12" y1="27.305" x2="71.12" y2="48.26" width="0.4064" layer="1"/>
+<wire x1="71.12" y1="48.26" x2="70.485" y2="48.895" width="0.4064" layer="1"/>
+<contactref element="IC4" pad="10"/>
+<contactref element="IC3" pad="10"/>
+<contactref element="IC6" pad="28"/>
+<wire x1="67.8434" y1="48.895" x2="67.8434" y2="41.275" width="0" layer="19" extent="1-1"/>
+<wire x1="21.0566" y1="42.545" x2="21.0566" y2="34.925" width="0" layer="19" extent="1-1"/>
+<wire x1="80.01" y1="31.115" x2="17.145" y2="26.67" width="0" layer="19" extent="1-1"/>
+</signal>
+<signal name="A1">
+<contactref element="IC3" pad="1"/>
+<contactref element="IC5" pad="9"/>
+<wire x1="61.6966" y1="48.895" x2="49.765" y2="48.895" width="0.4064" layer="1"/>
+</signal>
+<signal name="A0">
+<contactref element="IC3" pad="15"/>
+<contactref element="IC5" pad="10"/>
+<wire x1="67.8434" y1="47.625" x2="66.04" y2="47.625" width="0.4064" layer="1"/>
+<wire x1="66.04" y1="47.625" x2="65.405" y2="48.26" width="0.4064" layer="1"/>
+<wire x1="65.405" y1="48.26" x2="65.405" y2="49.53" width="0.4064" layer="1"/>
+<wire x1="65.405" y1="49.53" x2="64.77" y2="50.165" width="0.4064" layer="1"/>
+<wire x1="64.77" y1="50.165" x2="49.765" y2="50.165" width="0.4064" layer="1"/>
+</signal>
+<signal name="A3">
+<contactref element="IC3" pad="3"/>
+<contactref element="IC5" pad="7"/>
+<wire x1="61.6966" y1="46.355" x2="49.765" y2="46.355" width="0.4064" layer="1"/>
+</signal>
+<signal name="A2">
+<contactref element="IC3" pad="2"/>
+<contactref element="IC5" pad="8"/>
+<wire x1="49.765" y1="47.625" x2="61.6966" y2="47.625" width="0.4064" layer="1"/>
+</signal>
+<signal name="A4">
+<contactref element="IC3" pad="4"/>
+<contactref element="IC5" pad="6"/>
+<wire x1="49.765" y1="45.085" x2="61.6966" y2="45.085" width="0.4064" layer="1"/>
+</signal>
+<signal name="A5">
+<contactref element="IC3" pad="5"/>
+<contactref element="IC5" pad="5"/>
+<wire x1="61.6966" y1="43.815" x2="49.765" y2="43.815" width="0.4064" layer="1"/>
+</signal>
+<signal name="A6">
+<contactref element="IC3" pad="6"/>
+<contactref element="IC5" pad="4"/>
+<wire x1="49.765" y1="42.545" x2="61.6966" y2="42.545" width="0.4064" layer="1"/>
+</signal>
+<signal name="A7">
+<contactref element="IC3" pad="7"/>
+<contactref element="IC5" pad="3"/>
+<wire x1="49.765" y1="41.275" x2="61.6966" y2="41.275" width="0.4064" layer="1"/>
+</signal>
+<signal name="A8">
+<contactref element="IC4" pad="15"/>
+<contactref element="IC5" pad="25"/>
+<wire x1="21.0566" y1="36.195" x2="22.86" y2="36.195" width="0.4064" layer="1"/>
+<wire x1="22.86" y1="36.195" x2="24.13" y2="37.465" width="0.4064" layer="1"/>
+<wire x1="24.13" y1="37.465" x2="24.13" y2="45.085" width="0.4064" layer="1"/>
+<wire x1="24.13" y1="45.085" x2="24.765" y2="45.72" width="0.4064" layer="1"/>
+<wire x1="24.765" y1="45.72" x2="31.115" y2="45.72" width="0.4064" layer="1"/>
+<wire x1="31.115" y1="45.72" x2="31.75" y2="45.085" width="0.4064" layer="1"/>
+<wire x1="31.75" y1="45.085" x2="31.75" y2="43.18" width="0.4064" layer="1"/>
+<wire x1="31.75" y1="43.18" x2="32.385" y2="42.545" width="0.4064" layer="1"/>
+<wire x1="32.385" y1="42.545" x2="39.135" y2="42.545" width="0.4064" layer="1"/>
+</signal>
+<signal name="A9">
+<contactref element="IC4" pad="1"/>
+<contactref element="IC5" pad="24"/>
+<wire x1="27.2034" y1="34.925" x2="33.02" y2="34.925" width="0.4064" layer="1"/>
+<via x="33.02" y="34.925" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="33.02" y1="34.925" x2="33.02" y2="43.815" width="0.4064" layer="16"/>
+<via x="33.02" y="43.815" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="33.02" y1="43.815" x2="39.135" y2="43.815" width="0.4064" layer="1"/>
+</signal>
+<signal name="A10">
+<contactref element="IC4" pad="2"/>
+<contactref element="IC5" pad="21"/>
+<wire x1="27.2034" y1="36.195" x2="34.29" y2="36.195" width="0.4064" layer="1"/>
+<via x="34.29" y="36.195" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="34.29" y1="36.195" x2="34.29" y2="47.625" width="0.4064" layer="16"/>
+<via x="34.29" y="47.625" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="34.29" y1="47.625" x2="39.135" y2="47.625" width="0.4064" layer="1"/>
+</signal>
+<signal name="A11">
+<contactref element="IC4" pad="3"/>
+<contactref element="IC5" pad="23"/>
+<wire x1="27.2034" y1="37.465" x2="35.56" y2="37.465" width="0.4064" layer="1"/>
+<via x="35.56" y="37.465" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="35.56" y1="37.465" x2="35.56" y2="45.085" width="0.4064" layer="16"/>
+<via x="35.56" y="45.085" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="35.56" y1="45.085" x2="39.135" y2="45.085" width="0.4064" layer="1"/>
+</signal>
+<signal name="A12">
+<contactref element="IC4" pad="4"/>
+<contactref element="IC5" pad="2"/>
+<wire x1="27.2034" y1="38.735" x2="35.56" y2="38.735" width="0.4064" layer="1"/>
+<wire x1="35.56" y1="38.735" x2="36.83" y2="40.005" width="0.4064" layer="1"/>
+<via x="36.83" y="40.005" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="36.83" y1="40.005" x2="53.34" y2="40.005" width="0.4064" layer="16"/>
+<via x="53.34" y="40.005" extent="1-16" drill="0.6" shape="square"/>
+<wire x1="53.34" y1="40.005" x2="49.765" y2="40.005" width="0.4064" layer="1"/>
+</signal>
+<signal name="A13">
+<contactref element="IC4" pad="5"/>
+<contactref element="IC5" pad="26"/>
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