<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<library>
<packages>
<package name="DIL18">
<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>
<symbols>
<symbol name="74C926">
<pin name="CLK" direction="in" function="clk"/>
<pin name="DISPLAY" direction="in"/>
<pin name="RESET"/>
<pin name="D" direction="out"/>
<pin name="F" direction="out"/>
<pin name="E" direction="out"/>
<pin name="G" direction="out"/>
<pin name="C" direction="out"/>
<pin name="A" direction="out"/>
<pin name="B" direction="out"/>
<pin name="QA" direction="out"/>
<pin name="QB" direction="out"/>
<pin name="QC" direction="out"/>
<pin name="QD" direction="out"/>
<pin name="LATCH" direction="in"/>
<pin name="CARRY" direction="in"/>
</symbol>
<symbol name="PWRN">
<pin name="GND" direction="pwr"/>
<pin name="VCC" direction="pwr"/>
</symbol>
<symbol name="75492">
<pin name="A1" direction="in"/>
<pin name="Y1" direction="out" function="dot"/>
<pin name="A2" direction="in"/>
<pin name="Y2" direction="out" function="dot"/>
<pin name="A3" direction="in"/>
<pin name="Y3" direction="out" function="dot"/>
<pin name="Y4" direction="out" function="dot"/>
<pin name="A4" direction="in"/>
<pin name="Y5" direction="out" function="dot"/>
<pin name="A5" direction="in"/>
<pin name="Y6" direction="out" function="dot"/>
<pin name="A6" direction="in"/>
</symbol>
<symbol name="PWR-GND-VSS">
<pin name="GND" direction="pwr"/>
<pin name="VSS" direction="pwr"/>
</symbol>
<symbol name="75492-X">
<pin name="I1" direction="in"/>
<pin name="I2" direction="in"/>
<pin name="I3" direction="in"/>
<pin name="I4" direction="in"/>
<pin name="I5" direction="in"/>
<pin name="I6" direction="in"/>
<pin name="O1" direction="out"/>
<pin name="O2" direction="out"/>
<pin name="O3" direction="out"/>
<pin name="O4" direction="out"/>
<pin name="O5" direction="out"/>
<pin name="O6" direction="out"/>
</symbol>
<symbol name="74C236-X">
<pin name="!CLK!" direction="in" function="clk"/>
<pin name="DISPLAY" direction="in"/>
<pin name="RESET" direction="in"/>
<pin name="D" direction="out"/>
<pin name="F" direction="out"/>
<pin name="E" direction="out"/>
<pin name="G" direction="out"/>
<pin name="C" direction="out"/>
<pin name="A" direction="out"/>
<pin name="B" direction="out"/>
<pin name="QA" direction="out"/>
<pin name="QB" direction="out"/>
<pin name="QC" direction="out"/>
<pin name="QD" direction="out"/>
<pin name="!LATCH!" direction="in"/>
<pin name="CARRY" direction="out"/>
</symbol>
<symbol name="PWR-VCC-GND">
<pin name="GND" direction="pwr"/>
<pin name="VCC" direction="pwr"/>
</symbol>
</symbols>
<devicesets>
<deviceset name="74C926" prefix="IC">
<description>4-bit &lt;b&gt;COUNTER/LATCH SEVEN-SEGMENT LED/LAMP DRIVER&lt;/b&gt;</description>
<gates>
<gate name="A" symbol="74C926"/>
<gate name="-P" symbol="PWRN"/>
</gates>
<devices>
<device name="" package="DIL18">
<connects>
<connect gate="-P" pin="GND" pad="9"/>
<connect gate="-P" pin="VCC" pad="18"/>
<connect gate="A" pin="A" pad="15"/>
<connect gate="A" pin="B" pad="16"/>
<connect gate="A" pin="C" pad="17"/>
<connect gate="A" pin="CARRY" pad="14"/>
<connect gate="A" pin="CLK" pad="12"/>
<connect gate="A" pin="D" pad="1"/>
<connect gate="A" pin="DISPLAY" pad="6"/>
<connect gate="A" pin="E" pad="2"/>
<connect gate="A" pin="F" pad="3"/>
<connect gate="A" pin="G" pad="4"/>
<connect gate="A" pin="LATCH" pad="5"/>
<connect gate="A" pin="QA" pad="7"/>
<connect gate="A" pin="QB" pad="8"/>
<connect gate="A" pin="QC" pad="10"/>
<connect gate="A" pin="QD" pad="11"/>
<connect gate="A" pin="RESET" pad="13"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="75492" prefix="IC">
<description>Hex Digit Drive &lt;b&gt;LINE DRIVER&lt;/b&gt;</description>
<gates>
<gate name="A" symbol="75492"/>
<gate name="-P" symbol="PWR-GND-VSS"/>
</gates>
<devices>
<device name="" package="DIL14">
<connects>
<connect gate="-P" pin="GND" pad="4"/>
<connect gate="-P" pin="VSS" pad="11"/>
<connect gate="A" pin="A1" pad="14"/>
<connect gate="A" pin="A2" pad="3"/>
<connect gate="A" pin="A3" pad="5"/>
<connect gate="A" pin="A4" pad="8"/>
<connect gate="A" pin="A5" pad="10"/>
<connect gate="A" pin="A6" pad="12"/>
<connect gate="A" pin="Y1" pad="1"/>
<connect gate="A" pin="Y2" pad="2"/>
<connect gate="A" pin="Y3" pad="6"/>
<connect gate="A" pin="Y4" pad="7"/>
<connect gate="A" pin="Y5" pad="9"/>
<connect gate="A" pin="Y6" pad="13"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="75492-X" prefix="IC">
<description>&lt;b&gt;SN75492&lt;/B&gt;&lt;P&gt;
6 SINK DRIVER&lt;br&gt;</description>
<gates>
<gate name="G1" symbol="75492-X"/>
<gate name="G$1" symbol="PWR-GND-VSS"/>
</gates>
<devices>
<device name="" package="DIL14">
<connects>
<connect gate="G$1" pin="GND" pad="4"/>
<connect gate="G$1" pin="VSS" pad="11"/>
<connect gate="G1" pin="I1" pad="14"/>
<connect gate="G1" pin="I2" pad="3"/>
<connect gate="G1" pin="I3" pad="5"/>
<connect gate="G1" pin="I4" pad="8"/>
<connect gate="G1" pin="I5" pad="10"/>
<connect gate="G1" pin="I6" pad="12"/>
<connect gate="G1" pin="O1" pad="1"/>
<connect gate="G1" pin="O2" pad="2"/>
<connect gate="G1" pin="O3" pad="6"/>
<connect gate="G1" pin="O4" pad="7"/>
<connect gate="G1" pin="O5" pad="9"/>
<connect gate="G1" pin="O6" pad="13"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
<deviceset name="74C926-X" prefix="IC">
<description>&lt;b&gt;MM74C926&lt;/B&gt;&lt;p&gt;

4-Digit Counters with Multiplexed 7-Segment Output Drivers&lt;br&gt;
 Wide supply voltage range: 3V to 6V&lt;br&gt;
Guaranteed noise margin: 1V&lt;br&gt;
High noise immunity: 0.45 VCC (typ.)&lt;br&gt;
High segment sourcing current: 40 mA @ VCC − 1.6V, VCC = 5V&lt;br&gt;
Internal multiplexing circuitry&lt;br&gt;</description>
<gates>
<gate name="G$1" symbol="74C236-X"/>
<gate name="-P" symbol="PWR-VCC-GND"/>
</gates>
<devices>
<device name="" package="DIL18">
<connects>
<connect gate="-P" pin="GND" pad="9"/>
<connect gate="-P" pin="VCC" pad="18"/>
<connect gate="G$1" pin="!CLK!" pad="12"/>
<connect gate="G$1" pin="!LATCH!" pad="5"/>
<connect gate="G$1" pin="A" pad="15"/>
<connect gate="G$1" pin="B" pad="16"/>
<connect gate="G$1" pin="C" pad="17"/>
<connect gate="G$1" pin="CARRY" pad="14"/>
<connect gate="G$1" pin="D" pad="1"/>
<connect gate="G$1" pin="DISPLAY" pad="6"/>
<connect gate="G$1" pin="E" pad="2"/>
<connect gate="G$1" pin="F" pad="3"/>
<connect gate="G$1" pin="G" pad="4"/>
<connect gate="G$1" pin="QA" pad="7"/>
<connect gate="G$1" pin="QB" pad="8"/>
<connect gate="G$1" pin="QC" pad="10"/>
<connect gate="G$1" pin="QD" pad="11"/>
<connect gate="G$1" pin="RESET" pad="13"/>
</connects>
<technologies>
<technology name=""/>
</technologies>
</device>
</devices>
</deviceset>
</devicesets>
</library>
</drawing>
</eagle>
