<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE eagle SYSTEM "eagle.dtd">
<eagle version="6.6.0">
<drawing>
<board>
<plain>
<text>I/O BUS DRIVER M622A</text>
</plain>
<libraries>
<library name="rcl">
<packages>
<package name="C050-025X075">
<description>&lt;b&gt;CAPACITOR&lt;/b&gt;&lt;p&gt;
grid 5 mm, outline 2.5 x 7.5 mm</description>
</package>
<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="dec-con">
<packages>
<package name="EDGE-CON2">
<description>Single-Height DEC edge connector</description>
</package>
<package name="SINGLE">
<description>Single-Height DEC board</description>
</package>
<package name="E12-8">
<description>A 0.8 inch electrolytic.</description>
</package>
<package name="DIL14">
<description>&lt;b&gt;Dual In Line Package&lt;/b&gt;</description>
</package>
</packages>
</library>
<library name="transistor-npn">
<packages>
<package name="TO5">
<description>&lt;b&gt;TO 5&lt;/b&gt;</description>
</package>
</packages>
</library>
</libraries>
<attributes>
</attributes>
<variantdefs>
</variantdefs>
<elements>
<element name="C1" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="C2" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="R18" library="rcl" package="0207/10" value="750"/>
<element name="R17" library="rcl" package="0207/10" value="330"/>
<element name="U$1" library="dec-con" package="EDGE-CON2" value=""/>
<element name="U$4" library="dec-con" package="SINGLE" value="OUTLINE-SINGLE"/>
<element name="C3" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="C4" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="C14" library="dec-con" package="E12-8" value="6.8uF"/>
<element name="E1" library="dec-con" package="DIL14" value="74H50N"/>
<element name="E2" library="dec-con" package="DIL14" value="74H50N"/>
<element name="E3" library="dec-con" package="DIL14" value="74H50N"/>
<element name="E4" library="dec-con" package="DIL14" value="74H50N"/>
<element name="R3" library="rcl" package="0207/10" value="470"/>
<element name="R6" library="rcl" package="0207/10" value="220"/>
<element name="Q3" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="C13" library="rcl" package="C050-025X075" value=".01uF"/>
<element name="R9" library="rcl" package="0207/10" value="470"/>
<element name="R12" library="rcl" package="0207/10" value="220"/>
<element name="Q6" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R2" library="rcl" package="0207/10" value="470"/>
<element name="R5" library="rcl" package="0207/10" value="220"/>
<element name="Q2" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R14" library="rcl" package="0207/10" value="470"/>
<element name="R16" library="rcl" package="0207/10" value="220"/>
<element name="Q8" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R8" library="rcl" package="0207/10" value="470"/>
<element name="R11" library="rcl" package="0207/10" value="220"/>
<element name="Q5" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R13" library="rcl" package="0207/10" value="470"/>
<element name="R15" library="rcl" package="0207/10" value="220"/>
<element name="Q7" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R1" library="rcl" package="0207/10" value="470"/>
<element name="R4" library="rcl" package="0207/10" value="220"/>
<element name="Q1" library="transistor-npn" package="TO5" value="PN3569"/>
<element name="R7" library="rcl" package="0207/10" value="470"/>
<element name="R10" library="rcl" package="0207/10" value="220"/>
<element name="Q4" library="transistor-npn" package="TO5" value="PN3569"/>
</elements>
<signals>
<signal name="GND">
<contactref element="C2" pad="2"/>
<contactref element="C1" pad="2"/>
<contactref element="R18" pad="1"/>
<contactref element="C3" pad="2"/>
<contactref element="C4" pad="2"/>
<contactref element="C14" pad="-"/>
<contactref element="U$1" pad="C2"/>
<contactref element="U$1" pad="T1"/>
<contactref element="U$1" pad="F2"/>
<contactref element="U$1" pad="L2"/>
<contactref element="U$1" pad="J2"/>
<contactref element="U$1" pad="N2"/>
<contactref element="U$1" pad="R2"/>
<contactref element="U$1" pad="U2"/>
<contactref element="E1" pad="7"/>
<contactref element="E2" pad="7"/>
<contactref element="E3" pad="7"/>
<contactref element="E4" pad="7"/>
<contactref element="Q3" pad="1"/>
<contactref element="C13" pad="2"/>
<contactref element="Q6" pad="1"/>
<contactref element="Q2" pad="1"/>
<contactref element="Q8" pad="1"/>
<contactref element="Q5" pad="1"/>
<contactref element="Q7" pad="1"/>
<contactref element="Q1" pad="1"/>
<contactref element="Q4" pad="1"/>
</signal>
<signal name="VCC">
<contactref element="C2" pad="1"/>
<contactref element="C1" pad="1"/>
<contactref element="R17" pad="2"/>
<contactref element="C3" pad="1"/>
<contactref element="C4" pad="1"/>
<contactref element="C14" pad="+"/>
<contactref element="U$1" pad="A2"/>
<contactref element="E1" pad="14"/>
<contactref element="E2" pad="14"/>
<contactref element="E3" pad="14"/>
<contactref element="E4" pad="14"/>
<contactref element="R3" pad="2"/>
<contactref element="C13" pad="1"/>
<contactref element="R9" pad="2"/>
<contactref element="R2" pad="2"/>
<contactref element="R14" pad="2"/>
<contactref element="R8" pad="2"/>
<contactref element="R13" pad="2"/>
<contactref element="R1" pad="2"/>
<contactref element="R7" pad="2"/>
</signal>
<signal name="+3V3">
<contactref element="R18" pad="2"/>
<contactref element="R17" pad="1"/>
<contactref element="E2" pad="1"/>
<contactref element="E2" pad="2"/>
<contactref element="E2" pad="10"/>
<contactref element="E2" pad="4"/>
<contactref element="E3" pad="2"/>
<contactref element="E3" pad="4"/>
<contactref element="E1" pad="10"/>
<contactref element="E1" pad="1"/>
<contactref element="E4" pad="2"/>
<contactref element="E4" pad="4"/>
<contactref element="E4" pad="10"/>
<contactref element="E4" pad="1"/>
<contactref element="E3" pad="10"/>
<contactref element="E1" pad="2"/>
<contactref element="E1" pad="4"/>
<contactref element="E3" pad="1"/>
</signal>
<signal name="N$1">
<contactref element="U$1" pad="K1"/>
<contactref element="E2" pad="3"/>
</signal>
<signal name="N$2">
<contactref element="U$1" pad="J1"/>
<contactref element="E2" pad="5"/>
</signal>
<signal name="N$3">
<contactref element="U$1" pad="C1"/>
<contactref element="E2" pad="9"/>
</signal>
<signal name="N$4">
<contactref element="U$1" pad="B1"/>
<contactref element="E2" pad="13"/>
</signal>
<signal name="N$5">
<contactref element="U$1" pad="S1"/>
<contactref element="E3" pad="5"/>
</signal>
<signal name="N$6">
<contactref element="U$1" pad="R1"/>
<contactref element="E3" pad="3"/>
</signal>
<signal name="N$7">
<contactref element="E2" pad="8"/>
<contactref element="R6" pad="1"/>
<contactref element="R3" pad="1"/>
</signal>
<signal name="N$8">
<contactref element="R6" pad="2"/>
<contactref element="Q3" pad="2"/>
</signal>
<signal name="N$9">
<contactref element="R12" pad="1"/>
<contactref element="R9" pad="1"/>
<contactref element="E1" pad="8"/>
</signal>
<signal name="N$10">
<contactref element="R12" pad="2"/>
<contactref element="Q6" pad="2"/>
</signal>
<signal name="N$11">
<contactref element="Q3" pad="3"/>
<contactref element="U$1" pad="D2"/>
</signal>
<signal name="N$13">
<contactref element="Q6" pad="3"/>
<contactref element="U$1" pad="E2"/>
</signal>
<signal name="N$14">
<contactref element="U$1" pad="V1"/>
<contactref element="E4" pad="3"/>
</signal>
<signal name="N$15">
<contactref element="U$1" pad="U1"/>
<contactref element="E4" pad="5"/>
</signal>
<signal name="N$16">
<contactref element="U$1" pad="L1"/>
<contactref element="E4" pad="13"/>
</signal>
<signal name="N$17">
<contactref element="U$1" pad="M1"/>
<contactref element="E4" pad="9"/>
</signal>
<signal name="N$12">
<contactref element="R5" pad="1"/>
<contactref element="R2" pad="1"/>
<contactref element="E2" pad="6"/>
</signal>
<signal name="N$18">
<contactref element="R5" pad="2"/>
<contactref element="Q2" pad="2"/>
</signal>
<signal name="N$19">
<contactref element="R16" pad="1"/>
<contactref element="R14" pad="1"/>
<contactref element="E1" pad="6"/>
</signal>
<signal name="N$20">
<contactref element="R16" pad="2"/>
<contactref element="Q8" pad="2"/>
</signal>
<signal name="N$21">
<contactref element="R11" pad="1"/>
<contactref element="R8" pad="1"/>
<contactref element="E4" pad="8"/>
</signal>
<signal name="N$22">
<contactref element="R11" pad="2"/>
<contactref element="Q5" pad="2"/>
</signal>
<signal name="N$23">
<contactref element="R15" pad="1"/>
<contactref element="R13" pad="1"/>
<contactref element="E3" pad="8"/>
</signal>
<signal name="N$24">
<contactref element="R15" pad="2"/>
<contactref element="Q7" pad="2"/>
</signal>
<signal name="N$25">
<contactref element="R4" pad="1"/>
<contactref element="R1" pad="1"/>
<contactref element="E3" pad="6"/>
</signal>
<signal name="N$26">
<contactref element="R4" pad="2"/>
<contactref element="Q1" pad="2"/>
</signal>
<signal name="N$27">
<contactref element="R10" pad="1"/>
<contactref element="R7" pad="1"/>
<contactref element="E4" pad="6"/>
</signal>
<signal name="N$28">
<contactref element="R10" pad="2"/>
<contactref element="Q4" pad="2"/>
</signal>
<signal name="N$29">
<contactref element="U$1" pad="D1"/>
<contactref element="E1" pad="13"/>
</signal>
<signal name="N$30">
<contactref element="U$1" pad="E1"/>
<contactref element="E1" pad="9"/>
</signal>
<signal name="N$31">
<contactref element="Q5" pad="3"/>
<contactref element="U$1" pad="M2"/>
</signal>
<signal name="N$32">
<contactref element="Q4" pad="3"/>
<contactref element="U$1" pad="V2"/>
</signal>
<signal name="N$33">
<contactref element="E1" pad="5"/>
<contactref element="U$1" pad="F1"/>
</signal>
<signal name="N$34">
<contactref element="U$1" pad="P1"/>
<contactref element="E3" pad="9"/>
</signal>
<signal name="N$35">
<contactref element="U$1" pad="N1"/>
<contactref element="E3" pad="13"/>
</signal>
<signal name="N$36">
<contactref element="U$1" pad="H1"/>
<contactref element="E1" pad="3"/>
</signal>
<signal name="N$37">
<contactref element="Q8" pad="3"/>
<contactref element="U$1" pad="H2"/>
</signal>
<signal name="N$38">
<contactref element="Q7" pad="3"/>
<contactref element="U$1" pad="P2"/>
</signal>
<signal name="N$39">
<contactref element="Q1" pad="3"/>
<contactref element="U$1" pad="S2"/>
</signal>
<signal name="N$40">
<contactref element="Q2" pad="3"/>
<contactref element="U$1" pad="K2"/>
</signal>
</signals>
</board>
</drawing>
</eagle>
