248 lines
9.8 KiB
XML
248 lines
9.8 KiB
XML
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
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<project source="2.7.1" version="1.0">
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This file is intended to be loaded by Logisim (http://www.cburch.com/logisim/).
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<lib desc="#Wiring" name="0">
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<tool name="Splitter">
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<a name="facing" val="south"/>
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<a name="appear" val="center"/>
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</tool>
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</lib>
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<lib desc="#Gates" name="1"/>
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<lib desc="#Plexers" name="2">
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<tool name="BitSelector">
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<a name="width" val="4"/>
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</tool>
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</lib>
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<lib desc="#Arithmetic" name="3"/>
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<lib desc="#Memory" name="4">
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<tool name="ROM">
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<a name="contents">addr/data: 8 8
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0
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</a>
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</tool>
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</lib>
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<lib desc="#I/O" name="5"/>
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<lib desc="#Base" name="6">
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<tool name="Text Tool">
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<a name="text" val=""/>
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<a name="font" val="SansSerif plain 12"/>
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<a name="halign" val="center"/>
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<a name="valign" val="base"/>
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</tool>
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</lib>
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<main name="74LS253"/>
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<options>
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<a name="gateUndefined" val="ignore"/>
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<a name="simlimit" val="1000"/>
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<a name="simrand" val="0"/>
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</options>
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<mappings>
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<tool lib="6" map="Button2" name="Menu Tool"/>
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<tool lib="6" map="Button3" name="Menu Tool"/>
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<tool lib="6" map="Ctrl Button1" name="Menu Tool"/>
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</mappings>
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<toolbar>
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<tool lib="6" name="Poke Tool"/>
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<tool lib="6" name="Edit Tool"/>
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<tool lib="6" name="Text Tool">
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<a name="text" val=""/>
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<a name="font" val="SansSerif plain 12"/>
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<a name="halign" val="center"/>
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<a name="valign" val="base"/>
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</tool>
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<sep/>
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<tool lib="0" name="Pin">
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<a name="facing" val="north"/>
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<a name="tristate" val="false"/>
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</tool>
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<tool lib="0" name="Pin">
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<a name="facing" val="west"/>
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<a name="output" val="true"/>
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<a name="labelloc" val="east"/>
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</tool>
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<tool lib="1" name="NOT Gate">
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<a name="facing" val="north"/>
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<a name="size" val="20"/>
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</tool>
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<tool lib="1" name="AND Gate"/>
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<tool lib="1" name="OR Gate"/>
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</toolbar>
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<circuit name="74LS253">
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<a name="circuit" val="74LS253"/>
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<a name="clabel" val=""/>
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<a name="clabelup" val="east"/>
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<a name="clabelfont" val="SansSerif plain 12"/>
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<appear>
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<rect fill="#ffff00" height="150" stroke="#000000" stroke-width="2" width="60" x="50" y="50"/>
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<text font-family="SansSerif" font-size="12" font-weight="bold" text-anchor="start" x="49" y="46">74LS253</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="64">A</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="74">B</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="94">1/G</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="104">1C0</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="114">1C1</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="124">1C2</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="134">1C3</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="91" y="114">1Y</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="184">2C2</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="154">2/G</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="164">2C0</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="174">2C1</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="54" y="194">2C3</text>
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<text font-family="SansSerif" font-size="10" font-weight="bold" text-anchor="start" x="91" y="174">2Y</text>
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<circ-port height="8" pin="60,70" width="8" x="46" y="96"/>
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<circ-port height="8" pin="280,70" width="8" x="46" y="156"/>
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<circ-port height="8" pin="60,90" width="8" x="46" y="106"/>
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<circ-port height="8" pin="280,90" width="8" x="46" y="166"/>
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<circ-port height="8" pin="60,110" width="8" x="46" y="116"/>
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<circ-port height="8" pin="280,110" width="8" x="46" y="176"/>
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<circ-port height="8" pin="60,130" width="8" x="46" y="126"/>
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<circ-port height="8" pin="280,130" width="8" x="46" y="186"/>
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<circ-port height="10" pin="180,90" width="10" x="105" y="105"/>
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<circ-port height="10" pin="400,90" width="10" x="105" y="165"/>
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<circ-port height="8" pin="120,200" width="8" x="46" y="56"/>
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<circ-port height="8" pin="140,200" width="8" x="46" y="66"/>
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<circ-port height="8" pin="170,200" width="8" x="46" y="86"/>
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<circ-port height="8" pin="390,200" width="8" x="46" y="146"/>
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<circ-anchor facing="east" height="6" width="6" x="77" y="137"/>
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</appear>
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<wire from="(390,100)" to="(390,170)"/>
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<wire from="(170,100)" to="(170,170)"/>
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<wire from="(170,190)" to="(170,200)"/>
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<wire from="(140,190)" to="(140,200)"/>
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<wire from="(120,190)" to="(120,200)"/>
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<wire from="(70,80)" to="(70,90)"/>
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<wire from="(290,80)" to="(290,90)"/>
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<wire from="(390,190)" to="(390,200)"/>
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<wire from="(300,90)" to="(300,110)"/>
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<wire from="(80,90)" to="(80,110)"/>
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<wire from="(140,150)" to="(140,170)"/>
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<wire from="(310,100)" to="(310,130)"/>
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<wire from="(90,100)" to="(90,130)"/>
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<wire from="(60,70)" to="(90,70)"/>
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<wire from="(60,130)" to="(90,130)"/>
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<wire from="(280,70)" to="(310,70)"/>
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<wire from="(280,130)" to="(310,130)"/>
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<wire from="(140,150)" to="(360,150)"/>
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<wire from="(290,80)" to="(310,80)"/>
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<wire from="(280,110)" to="(300,110)"/>
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<wire from="(60,110)" to="(80,110)"/>
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<wire from="(70,80)" to="(90,80)"/>
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<wire from="(140,100)" to="(140,150)"/>
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<wire from="(280,90)" to="(290,90)"/>
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<wire from="(300,90)" to="(310,90)"/>
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<wire from="(330,90)" to="(340,90)"/>
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<wire from="(370,90)" to="(380,90)"/>
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<wire from="(150,90)" to="(160,90)"/>
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<wire from="(60,90)" to="(70,90)"/>
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<wire from="(110,90)" to="(120,90)"/>
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<wire from="(360,100)" to="(360,150)"/>
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<wire from="(120,190)" to="(130,190)"/>
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<wire from="(80,90)" to="(90,90)"/>
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<comp lib="1" loc="(170,170)" name="NOT Gate">
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<a name="facing" val="north"/>
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<a name="size" val="20"/>
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</comp>
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<comp lib="0" loc="(120,200)" name="Pin">
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<a name="facing" val="north"/>
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<a name="tristate" val="false"/>
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<a name="label" val="B"/>
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<a name="labelloc" val="south"/>
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</comp>
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<comp lib="0" loc="(60,130)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="1C3"/>
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</comp>
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<comp lib="1" loc="(180,90)" name="Controlled Buffer"/>
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<comp lib="1" loc="(400,90)" name="Controlled Buffer"/>
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<comp lib="0" loc="(390,200)" name="Pin">
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<a name="facing" val="north"/>
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<a name="tristate" val="false"/>
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<a name="label" val="2/G"/>
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<a name="labelloc" val="south"/>
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</comp>
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<comp lib="0" loc="(180,90)" name="Pin">
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<a name="facing" val="west"/>
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<a name="output" val="true"/>
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<a name="label" val="1Y"/>
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<a name="labelloc" val="east"/>
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</comp>
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<comp lib="0" loc="(280,110)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="2C2"/>
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</comp>
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<comp lib="0" loc="(140,200)" name="Pin">
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<a name="facing" val="north"/>
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<a name="tristate" val="false"/>
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<a name="label" val="A"/>
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<a name="labelloc" val="south"/>
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</comp>
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<comp lib="0" loc="(330,90)" name="Splitter">
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<a name="facing" val="west"/>
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<a name="fanout" val="4"/>
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<a name="incoming" val="4"/>
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<a name="appear" val="center"/>
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</comp>
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<comp lib="0" loc="(60,90)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="1C1"/>
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</comp>
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<comp lib="0" loc="(280,130)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="2C3"/>
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</comp>
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<comp lib="0" loc="(140,170)" name="Splitter">
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<a name="facing" val="south"/>
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<a name="appear" val="center"/>
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</comp>
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<comp lib="6" loc="(78,42)" name="Text">
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<a name="text" val="74LS253"/>
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<a name="font" val="SansSerif bold 24"/>
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</comp>
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<comp lib="2" loc="(150,90)" name="BitSelector">
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<a name="width" val="4"/>
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</comp>
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<comp lib="0" loc="(280,70)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="2C0"/>
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</comp>
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<comp lib="0" loc="(60,70)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="1C0"/>
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</comp>
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<comp lib="1" loc="(390,170)" name="NOT Gate">
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<a name="facing" val="north"/>
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<a name="size" val="20"/>
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</comp>
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<comp lib="0" loc="(110,90)" name="Splitter">
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<a name="facing" val="west"/>
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<a name="fanout" val="4"/>
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<a name="incoming" val="4"/>
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<a name="appear" val="center"/>
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</comp>
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<comp lib="0" loc="(170,200)" name="Pin">
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<a name="facing" val="north"/>
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<a name="tristate" val="false"/>
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<a name="label" val="1/G"/>
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<a name="labelloc" val="south"/>
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</comp>
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<comp lib="0" loc="(60,110)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="1C2"/>
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</comp>
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<comp lib="0" loc="(280,90)" name="Pin">
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<a name="tristate" val="false"/>
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<a name="label" val="2C1"/>
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</comp>
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<comp lib="2" loc="(370,90)" name="BitSelector">
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<a name="width" val="4"/>
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</comp>
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<comp lib="0" loc="(400,90)" name="Pin">
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<a name="facing" val="west"/>
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<a name="output" val="true"/>
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<a name="label" val="2Y"/>
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<a name="labelloc" val="east"/>
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</comp>
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</circuit>
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</project>
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