<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<schematic>
<libraries>
<library name="74xx-eu">
<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>
<packages>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
<package name="SO14">
<description>&lt;b&gt;Small Outline package&lt;/b&gt; 150 mil</description>
</package>
<package name="LCC20">
<description>&lt;b&gt;Leadless Chip Carrier&lt;/b&gt;&lt;p&gt; Ceramic Package</description>
</package>
</packages>
<symbols>
<symbol name="7474">
<pin name="CLR" direction="in" function="dot"/>
<pin name="D" direction="in"/>
<pin name="CLK" direction="in" function="clk"/>
<pin name="PRE" direction="in" function="dot"/>
<pin name="Q" direction="out"/>
<pin name="!Q" direction="out"/>
</symbol>
<symbol name="PWRN">
<pin name="GND" direction="pwr"/>
<pin name="VCC" direction="pwr"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="74*74" prefix="IC">
<description>Dual D type positive edge triggered &lt;b&gt;FLIP FLOP&lt;/b&gt;, preset and clear</description>
<gates>
<gate name="A" symbol="7474"/>
<gate name="B" symbol="7474"/>
<gate name="P" symbol="PWRN"/>
</gates>
<devices>
<device name="N" package="DIL14">
<connects>
<connect gate="A" pin="!Q" pad="6"/>
<connect gate="A" pin="CLK" pad="3"/>
<connect gate="A" pin="CLR" pad="1"/>
<connect gate="A" pin="D" pad="2"/>
<connect gate="A" pin="PRE" pad="4"/>
<connect gate="A" pin="Q" pad="5"/>
<connect gate="B" pin="!Q" pad="8"/>
<connect gate="B" pin="CLK" pad="11"/>
<connect gate="B" pin="CLR" pad="13"/>
<connect gate="B" pin="D" pad="12"/>
<connect gate="B" pin="PRE" pad="10"/>
<connect gate="B" pin="Q" pad="9"/>
<connect gate="P" pin="GND" pad="7"/>
<connect gate="P" pin="VCC" pad="14"/>
</connects>
<technologies>
<technology name="AC"/>
<technology name="ACT"/>
<technology name="HC"/>
<technology name="HCT"/>
<technology name="LS"/>
<technology name="S"/>
</technologies>
</device>
<device name="D" package="SO14">
<connects>
<connect gate="A" pin="!Q" pad="6"/>
<connect gate="A" pin="CLK" pad="3"/>
<connect gate="A" pin="CLR" pad="1"/>
<connect gate="A" pin="D" pad="2"/>
<connect gate="A" pin="PRE" pad="4"/>
<connect gate="A" pin="Q" pad="5"/>
<connect gate="B" pin="!Q" pad="8"/>
<connect gate="B" pin="CLK" pad="11"/>
<connect gate="B" pin="CLR" pad="13"/>
<connect gate="B" pin="D" pad="12"/>
<connect gate="B" pin="PRE" pad="10"/>
<connect gate="B" pin="Q" pad="9"/>
<connect gate="P" pin="GND" pad="7"/>
<connect gate="P" pin="VCC" pad="14"/>
</connects>
<technologies>
<technology name="AC"/>
<technology name="ACT"/>
<technology name="HC"/>
<technology name="HCT"/>
<technology name="LS"/>
<technology name="S"/>
</technologies>
</device>
<device name="FK" package="LCC20">
<connects>
<connect gate="A" pin="!Q" pad="9"/>
<connect gate="A" pin="CLK" pad="4"/>
<connect gate="A" pin="CLR" pad="2"/>
<connect gate="A" pin="D" pad="3"/>
<connect gate="A" pin="PRE" pad="6"/>
<connect gate="A" pin="Q" pad="8"/>
<connect gate="B" pin="!Q" pad="12"/>
<connect gate="B" pin="CLK" pad="16"/>
<connect gate="B" pin="CLR" pad="19"/>
<connect gate="B" pin="D" pad="18"/>
<connect gate="B" pin="PRE" pad="14"/>
<connect gate="B" pin="Q" pad="13"/>
<connect gate="P" pin="GND" pad="10"/>
<connect gate="P" pin="VCC" pad="20"/>
</connects>
<technologies>
<technology name="AC"/>
<technology name="ACT"/>
<technology name="HC"/>
<technology name="HCT"/>
<technology name="LS"/>
<technology name="S"/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="supply1">
<description>&lt;b&gt;Supply Symbols&lt;/b&gt;&lt;p&gt;
 GND, VCC, 0V, +5V, -5V, etc.&lt;p&gt;
 Please keep in mind, that these devices are necessary for the
 automatic wiring of the supply signals.&lt;p&gt;
 The pin name defined in the symbol is identical to the net which is to be wired automatically.&lt;p&gt;
 In this library the device names are the same as the pin names of the symbols, therefore the correct signal names appear next to the supply symbols in the schematic.&lt;p&gt;
 &lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
</packages>
<symbols>
<symbol name="+5V">
<pin name="+5V" direction="sup"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="+5V" prefix="P+">
<description>&lt;b&gt;SUPPLY SYMBOL&lt;/b&gt;</description>
<gates>
<gate name="1" symbol="+5V"/>
</gates>
<devices>
<device name="">
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
<library name="pinhead">
<description>&lt;b&gt;Pin Header Connectors&lt;/b&gt;&lt;p&gt;
&lt;author&gt;Created by librarian@cadsoft.de&lt;/author&gt;</description>
<packages>
<package name="1X01">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
</package>
</packages>
<symbols>
<symbol name="PINHD1">
<pin name="1" direction="pas" function="dot"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="PINHD-1X1" prefix="JP" uservalue="yes">
<description>&lt;b&gt;PIN HEADER&lt;/b&gt;</description>
<gates>
<gate name="G$1" symbol="PINHD1"/>
</gates>
<devices>
<device name="" package="1X01">
<connects>
<connect gate="G$1" pin="1" pad="1"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<parts>
<part name="IC1" library="74xx-eu" deviceset="74*74" device="D" technology="AC"/>
<part name="IC2" library="74xx-eu" deviceset="74*74" device="D" technology="AC"/>
<part name="IC3" library="74xx-eu" deviceset="74*74" device="D" technology="AC"/>
<part name="P+1" library="supply1" deviceset="+5V" device=""/>
<part name="Q4" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="Q3" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="Q2" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="Q1" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="Q0" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="VSTUP" library="pinhead" deviceset="PINHD-1X1" device=""/>
<part name="CLK" library="pinhead" deviceset="PINHD-1X1" device=""/>
</parts>
<sheets>
<sheet>
<plain>
</plain>
<busses>
</busses>
<nets>
<net name="N$4">
<segment>
<pinref part="IC1" gate="A" pin="Q"/>
<pinref part="IC1" gate="B" pin="D"/>
<pinref part="Q4" gate="G$1" pin="1"/>
</segment>
</net>
<net name="N$5">
<segment>
<pinref part="IC1" gate="B" pin="Q"/>
<pinref part="IC2" gate="A" pin="D"/>
<pinref part="Q3" gate="G$1" pin="1"/>
</segment>
</net>
<net name="N$6">
<segment>
<pinref part="IC2" gate="A" pin="Q"/>
<pinref part="IC2" gate="B" pin="D"/>
<pinref part="Q2" gate="G$1" pin="1"/>
</segment>
</net>
<net name="N$7">
<segment>
<pinref part="IC2" gate="B" pin="Q"/>
<pinref part="IC3" gate="A" pin="D"/>
<pinref part="Q1" gate="G$1" pin="1"/>
</segment>
</net>
<net name="N$8">
<segment>
<pinref part="CLK" gate="G$1" pin="1"/>
<pinref part="IC3" gate="A" pin="CLK"/>
<pinref part="IC2" gate="B" pin="CLK"/>
<pinref part="IC2" gate="A" pin="CLK"/>
<pinref part="IC1" gate="B" pin="CLK"/>
<pinref part="IC1" gate="A" pin="CLK"/>
</segment>
</net>
<net name="N$13">
<segment>
<pinref part="VSTUP" gate="G$1" pin="1"/>
<pinref part="IC1" gate="A" pin="D"/>
</segment>
</net>
<net name="+5V">
<segment>
<pinref part="IC1" gate="A" pin="PRE"/>
<pinref part="IC3" gate="A" pin="PRE"/>
<pinref part="IC3" gate="A" pin="CLR"/>
<pinref part="IC2" gate="B" pin="PRE"/>
<pinref part="IC2" gate="B" pin="CLR"/>
<pinref part="IC2" gate="A" pin="PRE"/>
<pinref part="IC2" gate="A" pin="CLR"/>
<pinref part="IC1" gate="B" pin="CLR"/>
<pinref part="IC1" gate="B" pin="PRE"/>
<pinref part="P+1" gate="1" pin="+5V"/>
<pinref part="IC1" gate="A" pin="CLR"/>
</segment>
</net>
<net name="N$14">
<segment>
<pinref part="Q0" gate="G$1" pin="1"/>
<pinref part="IC3" gate="A" pin="Q"/>
</segment>
</net>
</nets>
</sheet>
</sheets>
</schematic>
</drawing>
</eagle>
