EESchema Schematic File Version 4
LIBS:macplusschematic-cache
EELAYER 30 0
EELAYER END
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Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L CPU_NXP_68000:MC68000FN U?
U 1 1 5ED4179A
P 5150 3650
F 0 "U?" H 5150 6431 50  0000 C CNN
F 1 "MC68000P8" H 5150 6340 50  0000 C CNN
F 2 "Package_LCC:PLCC-68" H 4400 5900 50  0001 C CNN
F 3 "http://www.nxp.com/files/32bit/doc/ref_manual/MC68000UM.pdf" H 5150 3650 50  0001 C CNN
	1    5150 3650
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS245 U10E
U 1 1 5ED437BE
P 7900 1950
F 0 "U10E" H 7900 2931 50  0000 C CNN
F 1 "74LS245" H 7900 2840 50  0000 C CNN
F 2 "" H 7900 1950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS245" H 7900 1950 50  0001 C CNN
	1    7900 1950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS166 U12F
U 1 1 5ED4492F
P 10150 2150
F 0 "U12F" H 10694 2196 50  0000 L CNN
F 1 "74LS166" H 10694 2105 50  0000 L CNN
F 2 "" H 10150 2150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS166" H 10150 2150 50  0001 C CNN
	1    10150 2150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS166 U11F
U 1 1 5ED45A1A
P 10150 4350
F 0 "U11F" H 10694 4396 50  0000 L CNN
F 1 "74LS166" H 10694 4305 50  0000 L CNN
F 2 "" H 10150 4350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS166" H 10150 4350 50  0001 C CNN
	1    10150 4350
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS245 U9E
U 1 1 5ED45E4B
P 7900 4200
F 0 "U9E" H 7900 5181 50  0000 C CNN
F 1 "74LS245" H 7900 5090 50  0000 C CNN
F 2 "" H 7900 4200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS245" H 7900 4200 50  0001 C CNN
	1    7900 4200
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS161 U12F
U 1 1 5ED4891D
P 1600 1950
F 0 "U12F" H 1600 2931 50  0000 C CNN
F 1 "74LS161" H 1600 2840 50  0000 C CNN
F 2 "" H 1600 1950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS161" H 1600 1950 50  0001 C CNN
	1    1600 1950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS161 U12E
U 1 1 5ED4945B
P 1600 4200
F 0 "U12E" H 1600 5181 50  0000 C CNN
F 1 "74LS161" H 1600 5090 50  0000 C CNN
F 2 "" H 1600 4200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS161" H 1600 4200 50  0001 C CNN
	1    1600 4200
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS253 U?
U 1 1 5ED4A6B1
P 1600 6350
F 0 "U?" H 1600 7531 50  0000 C CNN
F 1 "74FS253" H 1600 7440 50  0000 C CNN
F 2 "" H 1600 6350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS253" H 1600 6350 50  0001 C CNN
	1    1600 6350
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS393 U1F
U 1 1 5ED4AE22
P 3150 1900
F 0 "U1F" H 3150 2267 50  0000 C CNN
F 1 "74LS393" H 3150 2176 50  0000 C CNN
F 2 "" H 3150 1900 50  0001 C CNN
F 3 "74xx\\74LS393.pdf" H 3150 1900 50  0001 C CNN
	1    3150 1900
	1    0    0    -1  
$EndComp
$Comp
L Logic_Programmable:PAL16L8 U11E
U 1 1 5ED4CFEA
P 3150 4150
F 0 "U11E" H 3150 5031 50  0000 C CNN
F 1 "PAL16R8" H 3150 4940 50  0000 C CNN
F 2 "" H 3150 4150 50  0001 C CNN
F 3 "" H 3150 4150 50  0001 C CNN
	1    3150 4150
	1    0    0    -1  
$EndComp
$Comp
L Memory_EPROM:2764 U6D
U 1 1 5ED54F2C
P 10300 11600
F 0 "U6D" H 10300 12781 50  0000 C CNN
F 1 "2764" H 10300 12690 50  0000 C CNN
F 2 "Package_DIP:DIP-28_W15.24mm" H 10300 11600 50  0001 C CNN
F 3 "https://downloads.reactivemicro.com/Electronics/ROM/2764%20EPROM.pdf" H 10300 11600 50  0001 C CNN
	1    10300 11600
	1    0    0    -1  
$EndComp
$Comp
L Memory_EPROM:2764 U7D
U 1 1 5ED56290
P 12550 11600
F 0 "U7D" H 12550 12781 50  0000 C CNN
F 1 "2764" H 12550 12690 50  0000 C CNN
F 2 "Package_DIP:DIP-28_W15.24mm" H 12550 11600 50  0001 C CNN
F 3 "https://downloads.reactivemicro.com/Electronics/ROM/2764%20EPROM.pdf" H 12550 11600 50  0001 C CNN
	1    12550 11600
	1    0    0    -1  
$EndComp
$Comp
L Regulator_Linear:MC7905 Q1
U 1 1 5ED5AFF3
P 5150 11100
F 0 "Q1" H 5150 10951 50  0000 C CNN
F 1 "MC7905" H 5150 10860 50  0000 C CNN
F 2 "" H 5150 10900 50  0001 C CIN
F 3 "http://www.onsemi.com/pub/Collateral/MC7900-D.PDF" H 5150 11100 50  0001 C CNN
	1    5150 11100
	1    0    0    -1  
$EndComp
$Comp
L Device:R R35
U 1 1 5ED5D7BF
P 2250 10400
F 0 "R35" V 2043 10400 50  0000 C CNN
F 1 "1K" V 2134 10400 50  0000 C CNN
F 2 "" V 2180 10400 50  0001 C CNN
F 3 "~" H 2250 10400 50  0001 C CNN
	1    2250 10400
	0    1    1    0   
$EndComp
$Comp
L Device:R R20
U 1 1 5ED5F4F3
P 2250 10800
F 0 "R20" V 2043 10800 50  0000 C CNN
F 1 "560K" V 2134 10800 50  0000 C CNN
F 2 "" V 2180 10800 50  0001 C CNN
F 3 "~" H 2250 10800 50  0001 C CNN
	1    2250 10800
	0    1    1    0   
$EndComp
$Comp
L Device:R R6
U 1 1 5ED5FB14
P 2800 10400
F 0 "R6" V 2593 10400 50  0000 C CNN
F 1 "10K" V 2684 10400 50  0000 C CNN
F 2 "" V 2730 10400 50  0001 C CNN
F 3 "~" H 2800 10400 50  0001 C CNN
	1    2800 10400
	0    1    1    0   
$EndComp
$Comp
L Device:R R7
U 1 1 5ED612D2
P 2800 10800
F 0 "R7" V 2593 10800 50  0000 C CNN
F 1 "10K" V 2684 10800 50  0000 C CNN
F 2 "" V 2730 10800 50  0001 C CNN
F 3 "~" H 2800 10800 50  0001 C CNN
	1    2800 10800
	0    1    1    0   
$EndComp
$Comp
L Device:R R8
U 1 1 5ED61BE5
P 2800 11200
F 0 "R8" V 2593 11200 50  0000 C CNN
F 1 "150" V 2684 11200 50  0000 C CNN
F 2 "" V 2730 11200 50  0001 C CNN
F 3 "~" H 2800 11200 50  0001 C CNN
	1    2800 11200
	0    1    1    0   
$EndComp
$Comp
L Device:R R9
U 1 1 5ED623F1
P 2800 11650
F 0 "R9" V 2593 11650 50  0000 C CNN
F 1 "150" V 2684 11650 50  0000 C CNN
F 2 "" V 2730 11650 50  0001 C CNN
F 3 "~" H 2800 11650 50  0001 C CNN
	1    2800 11650
	0    1    1    0   
$EndComp
$Comp
L Device:R R28
U 1 1 5ED66882
P 2250 11200
F 0 "R28" V 2043 11200 50  0000 C CNN
F 1 "220" V 2134 11200 50  0000 C CNN
F 2 "" V 2180 11200 50  0001 C CNN
F 3 "~" H 2250 11200 50  0001 C CNN
	1    2250 11200
	0    1    1    0   
$EndComp
$Comp
L Device:R R30
U 1 1 5ED66F7B
P 2250 11650
F 0 "R30" V 2043 11650 50  0000 C CNN
F 1 "75" V 2134 11650 50  0000 C CNN
F 2 "" V 2180 11650 50  0001 C CNN
F 3 "~" H 2250 11650 50  0001 C CNN
	1    2250 11650
	0    1    1    0   
$EndComp
$Comp
L Device:R R27
U 1 1 5ED6BB26
P 2250 12100
F 0 "R27" V 2043 12100 50  0000 C CNN
F 1 "39" V 2134 12100 50  0000 C CNN
F 2 "" V 2180 12100 50  0001 C CNN
F 3 "~" H 2250 12100 50  0001 C CNN
	1    2250 12100
	0    1    1    0   
$EndComp
$Comp
L Device:R R11
U 1 1 5ED6C49D
P 2800 12100
F 0 "R11" V 2593 12100 50  0000 C CNN
F 1 "150" V 2684 12100 50  0000 C CNN
F 2 "" V 2730 12100 50  0001 C CNN
F 3 "~" H 2800 12100 50  0001 C CNN
	1    2800 12100
	0    1    1    0   
$EndComp
$Comp
L Device:R R10
U 1 1 5ED6D5F4
P 2800 12550
F 0 "R10" V 2593 12550 50  0000 C CNN
F 1 "220" V 2684 12550 50  0000 C CNN
F 2 "" V 2730 12550 50  0001 C CNN
F 3 "~" H 2800 12550 50  0001 C CNN
	1    2800 12550
	0    1    1    0   
$EndComp
$Comp
L Device:R R24
U 1 1 5ED6F569
P 2250 12550
F 0 "R24" V 2043 12550 50  0000 C CNN
F 1 "3.3K" V 2134 12550 50  0000 C CNN
F 2 "" V 2180 12550 50  0001 C CNN
F 3 "~" H 2250 12550 50  0001 C CNN
	1    2250 12550
	0    1    1    0   
$EndComp
$Comp
L Device:R R26
U 1 1 5ED70A6A
P 2250 12950
F 0 "R26" V 2043 12950 50  0000 C CNN
F 1 "1K" V 2134 12950 50  0000 C CNN
F 2 "" V 2180 12950 50  0001 C CNN
F 3 "~" H 2250 12950 50  0001 C CNN
	1    2250 12950
	0    1    1    0   
$EndComp
$Comp
L Device:R R23
U 1 1 5ED71B0D
P 2250 13850
F 0 "R23" V 2043 13850 50  0000 C CNN
F 1 "10" V 2134 13850 50  0000 C CNN
F 2 "" V 2180 13850 50  0001 C CNN
F 3 "~" H 2250 13850 50  0001 C CNN
	1    2250 13850
	0    1    1    0   
$EndComp
$Comp
L Device:R R22
U 1 1 5ED725EE
P 2250 13400
F 0 "R22" V 2043 13400 50  0000 C CNN
F 1 "10" V 2134 13400 50  0000 C CNN
F 2 "" V 2180 13400 50  0001 C CNN
F 3 "~" H 2250 13400 50  0001 C CNN
	1    2250 13400
	0    1    1    0   
$EndComp
$Comp
L Device:R R21
U 1 1 5ED76C6C
P 2300 14300
F 0 "R21" V 2093 14300 50  0000 C CNN
F 1 "47" V 2184 14300 50  0000 C CNN
F 2 "" V 2230 14300 50  0001 C CNN
F 3 "~" H 2300 14300 50  0001 C CNN
	1    2300 14300
	0    1    1    0   
$EndComp
$Comp
L Device:R R15
U 1 1 5ED77852
P 2800 12950
F 0 "R15" V 2593 12950 50  0000 C CNN
F 1 "10K" V 2684 12950 50  0000 C CNN
F 2 "" V 2730 12950 50  0001 C CNN
F 3 "~" H 2800 12950 50  0001 C CNN
	1    2800 12950
	0    1    1    0   
$EndComp
$Comp
L Device:R R5
U 1 1 5ED78142
P 2800 13400
F 0 "R5" V 2593 13400 50  0000 C CNN
F 1 "3.3K" V 2684 13400 50  0000 C CNN
F 2 "" V 2730 13400 50  0001 C CNN
F 3 "~" H 2800 13400 50  0001 C CNN
	1    2800 13400
	0    1    1    0   
$EndComp
$Comp
L Device:R R4
U 1 1 5ED789E8
P 2800 13850
F 0 "R4" V 2593 13850 50  0000 C CNN
F 1 "3.3K" V 2684 13850 50  0000 C CNN
F 2 "" V 2730 13850 50  0001 C CNN
F 3 "~" H 2800 13850 50  0001 C CNN
	1    2800 13850
	0    1    1    0   
$EndComp
$Comp
L Device:R R16
U 1 1 5ED797A0
P 2800 14300
F 0 "R16" V 2593 14300 50  0000 C CNN
F 1 "10K" V 2684 14300 50  0000 C CNN
F 2 "" V 2730 14300 50  0001 C CNN
F 3 "~" H 2800 14300 50  0001 C CNN
	1    2800 14300
	0    1    1    0   
$EndComp
$Comp
L Interface_UART:Z8530 U7D
U 1 1 5ED7B5D9
P 5150 13400
F 0 "U7D" H 5150 15081 50  0000 C CNN
F 1 "Z8530PS" H 5150 14990 50  0000 C CNN
F 2 "" H 5150 13400 50  0001 C CNN
F 3 "" H 5150 13400 50  0001 C CNN
	1    5150 13400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R17
U 1 1 5ED7DCA5
P 2800 14700
F 0 "R17" V 2593 14700 50  0000 C CNN
F 1 "10K" V 2684 14700 50  0000 C CNN
F 2 "" V 2730 14700 50  0001 C CNN
F 3 "~" H 2800 14700 50  0001 C CNN
	1    2800 14700
	0    1    1    0   
$EndComp
$Comp
L Device:R R2
U 1 1 5ED7F13E
P 2200 14700
F 0 "R2" V 1993 14700 50  0000 C CNN
F 1 "10K" V 2084 14700 50  0000 C CNN
F 2 "" V 2130 14700 50  0001 C CNN
F 3 "~" H 2200 14700 50  0001 C CNN
	1    2200 14700
	0    1    1    0   
$EndComp
$Comp
L Device:R R3
U 1 1 5ED8087B
P 2200 15200
F 0 "R3" V 1993 15200 50  0000 C CNN
F 1 "10K" V 2084 15200 50  0000 C CNN
F 2 "" V 2130 15200 50  0001 C CNN
F 3 "~" H 2200 15200 50  0001 C CNN
	1    2200 15200
	0    1    1    0   
$EndComp
$Comp
L Device:R R36
U 1 1 5ED8133F
P 2800 15200
F 0 "R36" V 2593 15200 50  0000 C CNN
F 1 "150" V 2684 15200 50  0000 C CNN
F 2 "" V 2730 15200 50  0001 C CNN
F 3 "~" H 2800 15200 50  0001 C CNN
	1    2800 15200
	0    1    1    0   
$EndComp
$Comp
L Connector:DB9_Female J?
U 1 1 5ED8B1DE
P 27100 6750
F 0 "J?" H 27280 6796 50  0000 L CNN
F 1 "DB9_Female" H 27280 6705 50  0000 L CNN
F 2 "" H 27100 6750 50  0001 C CNN
F 3 " ~" H 27100 6750 50  0001 C CNN
	1    27100 6750
	1    0    0    -1  
$EndComp
$Comp
L Connector:DB25_Female J?
U 1 1 5ED8C4E7
P 27100 10000
F 0 "J?" H 27280 10046 50  0000 L CNN
F 1 "DB25_Female" H 27280 9955 50  0000 L CNN
F 2 "" H 27100 10000 50  0001 C CNN
F 3 " ~" H 27100 10000 50  0001 C CNN
	1    27100 10000
	1    0    0    -1  
$EndComp
$Comp
L Connector:Mini-DIN-8 J?
U 1 1 5ED8E925
P 26950 14400
F 0 "J?" H 26950 14881 50  0000 C CNN
F 1 "Mini-DIN-8" H 26950 14790 50  0000 C CNN
F 2 "" V 26940 14390 50  0001 C CNN
F 3 "http://service.powerdynamics.com/ec/Catalog17/Section%2011.pdf" V 26940 14390 50  0001 C CNN
	1    26950 14400
	1    0    0    -1  
$EndComp
$Comp
L Connector:Mini-DIN-8 J?
U 1 1 5ED905AE
P 26950 16300
F 0 "J?" H 26950 16781 50  0000 C CNN
F 1 "Mini-DIN-8" H 26950 16690 50  0000 C CNN
F 2 "" V 26940 16290 50  0001 C CNN
F 3 "http://service.powerdynamics.com/ec/Catalog17/Section%2011.pdf" V 26940 16290 50  0001 C CNN
	1    26950 16300
	1    0    0    -1  
$EndComp
$Comp
L Device:R R41
U 1 1 5ED9C0C7
P 2200 15600
F 0 "R41" V 1993 15600 50  0000 C CNN
F 1 "630" V 2084 15600 50  0000 C CNN
F 2 "" V 2130 15600 50  0001 C CNN
F 3 "~" H 2200 15600 50  0001 C CNN
	1    2200 15600
	0    1    1    0   
$EndComp
$Comp
L Device:R R42
U 1 1 5ED9C6B4
P 2200 15950
F 0 "R42" V 1993 15950 50  0000 C CNN
F 1 "75" V 2084 15950 50  0000 C CNN
F 2 "" V 2130 15950 50  0001 C CNN
F 3 "~" H 2200 15950 50  0001 C CNN
	1    2200 15950
	0    1    1    0   
$EndComp
$Comp
L Device:R R43
U 1 1 5ED9CC4A
P 2200 16350
F 0 "R43" V 1993 16350 50  0000 C CNN
F 1 "27" V 2084 16350 50  0000 C CNN
F 2 "" V 2130 16350 50  0001 C CNN
F 3 "~" H 2200 16350 50  0001 C CNN
	1    2200 16350
	0    1    1    0   
$EndComp
$Comp
L Device:R R44
U 1 1 5ED9D924
P 2250 16750
F 0 "R44" V 2043 16750 50  0000 C CNN
F 1 "27" V 2134 16750 50  0000 C CNN
F 2 "" V 2180 16750 50  0001 C CNN
F 3 "~" H 2250 16750 50  0001 C CNN
	1    2250 16750
	0    1    1    0   
$EndComp
$Comp
L Connector:RJ11 J9
U 1 1 5EDA1027
P 27000 18750
F 0 "J9" H 26670 18754 50  0000 R CNN
F 1 "RJ11" H 26670 18845 50  0000 R CNN
F 2 "" V 27000 18775 50  0001 C CNN
F 3 "~" V 27000 18775 50  0001 C CNN
	1    27000 18750
	-1   0    0    1   
$EndComp
$Comp
L Diode:1N4001 CR1
U 1 1 5EDABF57
P 7200 8950
F 0 "CR1" H 7200 9166 50  0000 C CNN
F 1 "1N4001" H 7200 9075 50  0000 C CNN
F 2 "Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal" H 7200 8775 50  0001 C CNN
F 3 "http://www.vishay.com/docs/88503/1n4001.pdf" H 7200 8950 50  0001 C CNN
	1    7200 8950
	1    0    0    -1  
$EndComp
$Comp
L Device:R R19
U 1 1 5EDBDF9C
P 2800 15600
F 0 "R19" V 2593 15600 50  0000 C CNN
F 1 "47K" V 2684 15600 50  0000 C CNN
F 2 "" V 2730 15600 50  0001 C CNN
F 3 "~" H 2800 15600 50  0001 C CNN
	1    2800 15600
	0    1    1    0   
$EndComp
$Comp
L Device:R R2
U 1 1 5EDC3532
P 2800 15950
F 0 "R2" V 2593 15950 50  0000 C CNN
F 1 "10K" V 2684 15950 50  0000 C CNN
F 2 "" V 2730 15950 50  0001 C CNN
F 3 "~" H 2800 15950 50  0001 C CNN
	1    2800 15950
	0    1    1    0   
$EndComp
$Comp
L Device:Crystal Y1
U 1 1 5EDC5A00
P 8000 13950
F 0 "Y1" H 8000 14218 50  0000 C CNN
F 1 "Crystal 32.760kHz" H 8000 14127 50  0000 C CNN
F 2 "" H 8000 13950 50  0001 C CNN
F 3 "~" H 8000 13950 50  0001 C CNN
	1    8000 13950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C9
U 1 1 5EDC74FC
P 7250 14600
F 0 "C9" H 7365 14646 50  0000 L CNN
F 1 "10pF" H 7365 14555 50  0000 L CNN
F 2 "" H 7288 14450 50  0001 C CNN
F 3 "~" H 7250 14600 50  0001 C CNN
	1    7250 14600
	1    0    0    -1  
$EndComp
$Comp
L Device:C C8
U 1 1 5EDC7ED9
P 7700 14600
F 0 "C8" H 7815 14646 50  0000 L CNN
F 1 "3.3pF" H 7815 14555 50  0000 L CNN
F 2 "" H 7738 14450 50  0001 C CNN
F 3 "~" H 7700 14600 50  0001 C CNN
	1    7700 14600
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C12
U 1 1 5EDCB357
P 8250 14600
F 0 "C12" H 8365 14646 50  0000 L CNN
F 1 "33uF" H 8365 14555 50  0000 L CNN
F 2 "" H 8250 14600 50  0001 C CNN
F 3 "~" H 8250 14600 50  0001 C CNN
	1    8250 14600
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C14
U 1 1 5EDCC5D5
P 8250 15150
F 0 "C14" H 8365 15196 50  0000 L CNN
F 1 "?? uF" H 8365 15105 50  0000 L CNN
F 2 "" H 8250 15150 50  0001 C CNN
F 3 "~" H 8250 15150 50  0001 C CNN
	1    8250 15150
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C13
U 1 1 5EDCDCD8
P 8250 15700
F 0 "C13" H 8365 15746 50  0000 L CNN
F 1 "33uF" H 8365 15655 50  0000 L CNN
F 2 "" H 8250 15700 50  0001 C CNN
F 3 "~" H 8250 15700 50  0001 C CNN
	1    8250 15700
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C7
U 1 1 5EDCEFB3
P 8250 16350
F 0 "C7" H 8365 16396 50  0000 L CNN
F 1 "33uF" H 8365 16305 50  0000 L CNN
F 2 "" H 8250 16350 50  0001 C CNN
F 3 "~" H 8250 16350 50  0001 C CNN
	1    8250 16350
	1    0    0    -1  
$EndComp
$Comp
L Device:CP1 C6
U 1 1 5EDD07F5
P 8250 16950
F 0 "C6" H 8365 16996 50  0000 L CNN
F 1 "33uF" H 8365 16905 50  0000 L CNN
F 2 "" H 8250 16950 50  0001 C CNN
F 3 "~" H 8250 16950 50  0001 C CNN
	1    8250 16950
	1    0    0    -1  
$EndComp
$Comp
L Device:C C1
U 1 1 5EDD0E7A
P 7250 15150
F 0 "C1" H 7365 15196 50  0000 L CNN
F 1 ".1uF" H 7365 15105 50  0000 L CNN
F 2 "" H 7288 15000 50  0001 C CNN
F 3 "~" H 7250 15150 50  0001 C CNN
	1    7250 15150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C4
U 1 1 5EDD1471
P 7250 15700
F 0 "C4" H 7365 15746 50  0000 L CNN
F 1 ".1uF" H 7365 15655 50  0000 L CNN
F 2 "" H 7288 15550 50  0001 C CNN
F 3 "~" H 7250 15700 50  0001 C CNN
	1    7250 15700
	1    0    0    -1  
$EndComp
$Comp
L Device:C C3
U 1 1 5EDD1B4A
P 7250 16350
F 0 "C3" H 7365 16396 50  0000 L CNN
F 1 ".1uF" H 7365 16305 50  0000 L CNN
F 2 "" H 7288 16200 50  0001 C CNN
F 3 "~" H 7250 16350 50  0001 C CNN
	1    7250 16350
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS257 U2F
U 1 1 5EE0D7AE
P 7950 6650
F 0 "U2F" H 7950 7731 50  0000 C CNN
F 1 "74LS257" H 7950 7640 50  0000 C CNN
F 2 "" H 7950 6650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS257" H 7950 6650 50  0001 C CNN
	1    7950 6650
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS393 U1G
U 1 1 5EE12D90
P 3050 5900
F 0 "U1G" H 3050 6267 50  0000 C CNN
F 1 "74LS393" H 3050 6176 50  0000 C CNN
F 2 "" H 3050 5900 50  0001 C CNN
F 3 "74xx\\74LS393.pdf" H 3050 5900 50  0001 C CNN
	1    3050 5900
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Pack05_SIP RN?
U 1 1 5EE15CB1
P 4350 8600
F 0 "RN?" H 4404 8942 50  0000 C CNN
F 1 "R_Pack05_SIP 39x5" H 4404 8851 50  0000 C CNN
F 2 "Resistor_THT:R_Array_SIP10" V 5225 8600 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 4350 8600 50  0001 C CNN
	1    4350 8600
	1    0    0    -1  
$EndComp
$Comp
L Device:R_Pack05_SIP RP2
U 1 1 5EE16A26
P 4350 7400
F 0 "RP2" H 4404 7742 50  0000 C CNN
F 1 "R_Pack05_SIP 39x5" H 4404 7651 50  0000 C CNN
F 2 "Resistor_THT:R_Array_SIP10" V 5225 7400 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 4350 7400 50  0001 C CNN
	1    4350 7400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R38
U 1 1 5EE19D28
P 2800 16350
F 0 "R38" V 2593 16350 50  0000 C CNN
F 1 "39" V 2684 16350 50  0000 C CNN
F 2 "" V 2730 16350 50  0001 C CNN
F 3 "~" H 2800 16350 50  0001 C CNN
	1    2800 16350
	0    1    1    0   
$EndComp
$Comp
L Device:R R32
U 1 1 5EE1BD88
P 2800 16750
F 0 "R32" V 2593 16750 50  0000 C CNN
F 1 "47" V 2684 16750 50  0000 C CNN
F 2 "" V 2730 16750 50  0001 C CNN
F 3 "~" H 2800 16750 50  0001 C CNN
	1    2800 16750
	0    1    1    0   
$EndComp
$Comp
L Device:R R31
U 1 1 5EE246FB
P 2250 17200
F 0 "R31" V 2043 17200 50  0000 C CNN
F 1 "47" V 2134 17200 50  0000 C CNN
F 2 "" V 2180 17200 50  0001 C CNN
F 3 "~" H 2250 17200 50  0001 C CNN
	1    2250 17200
	0    1    1    0   
$EndComp
$Comp
L Device:R R39
U 1 1 5EE24FA5
P 2800 17200
F 0 "R39" V 2593 17200 50  0000 C CNN
F 1 "47" V 2684 17200 50  0000 C CNN
F 2 "" V 2730 17200 50  0001 C CNN
F 3 "~" H 2800 17200 50  0001 C CNN
	1    2800 17200
	0    1    1    0   
$EndComp
$Comp
L Device:R R40
U 1 1 5EE26175
P 2250 17650
F 0 "R40" V 2043 17650 50  0000 C CNN
F 1 "47" V 2134 17650 50  0000 C CNN
F 2 "" V 2180 17650 50  0001 C CNN
F 3 "~" H 2250 17650 50  0001 C CNN
	1    2250 17650
	0    1    1    0   
$EndComp
$Comp
L Device:R R?
U 1 1 5EE26C8A
P 2800 17650
F 0 "R?" V 2593 17650 50  0000 C CNN
F 1 "R" V 2684 17650 50  0000 C CNN
F 2 "" V 2730 17650 50  0001 C CNN
F 3 "~" H 2800 17650 50  0001 C CNN
	1    2800 17650
	0    1    1    0   
$EndComp
$Comp
L Device:R_Network13_US RP1
U 1 1 5EE28EAE
P 5300 15950
F 0 "RP1" H 4621 15996 50  0000 R CNN
F 1 "R_Network13_US 13 x 2.2K " H 4621 15905 50  0000 R CNN
F 2 "Resistor_THT:R_Array_SIP14" V 6075 15950 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 5300 15950 50  0001 C CNN
	1    5300 15950
	1    0    0    -1  
$EndComp
$Comp
L macplusschematic-rescue:SN74F04N-SN74F04 U4D
U 1 1 5ED4EDCA
P 9850 14450
F 0 "U4D" H 10350 14715 50  0000 C CNN
F 1 "74F04" H 10350 14624 50  0000 C CNN
F 2 "DIP794W53P254L1930H508Q14N" H 10700 14550 50  0001 L CNN
F 3 "http://www.ti.com/lit/gpn/sn74f04" H 10700 14450 50  0001 L CNN
F 4 "Hex inverter,SN74F04N DIP14 4.5-5.5V 6ns" H 10700 14350 50  0001 L CNN "Description"
F 5 "5.08" H 10700 14250 50  0001 L CNN "Height"
F 6 "595-SN74F04N" H 10700 14150 50  0001 L CNN "Mouser Part Number"
F 7 "https://www.mouser.co.uk/ProductDetail/Texas-Instruments/SN74F04N?qs=6gY4t2uohMw79bHsWZVPLg%3D%3D" H 10700 14050 50  0001 L CNN "Mouser Price/Stock"
F 8 "Texas Instruments" H 10700 13950 50  0001 L CNN "Manufacturer_Name"
F 9 "SN74F04N" H 10700 13850 50  0001 L CNN "Manufacturer_Part_Number"
	1    9850 14450
	1    0    0    -1  
$EndComp
$Comp
L Z85X30:Z85X30 U?
U 1 1 5ED873E0
P 11750 14400
F 0 "U?" H 12550 14665 50  0000 C CNN
F 1 "Z8530PS" H 12550 14574 50  0000 C CNN
F 2 "DIP1550W53P254L5232H424Q40N" H 13200 14500 50  0001 L CNN
F 3 "http://www.applelogic.org/files/Z8530UM.pdf" H 13200 14400 50  0001 L CNN
F 4 "Serial Communications Controller" H 13200 14300 50  0001 L CNN "Description"
F 5 "4.24" H 13200 14200 50  0001 L CNN "Height"
F 6 "Zilog" H 13200 14100 50  0001 L CNN "Manufacturer_Name"
F 7 "Z85X30" H 13200 14000 50  0001 L CNN "Manufacturer_Part_Number"
F 8 "Z85X30" H 13200 13900 50  0001 L CNN "Arrow Part Number"
F 9 "" H 13200 13800 50  0001 L CNN "Arrow Price/Stock"
F 10 "" H 13200 13700 50  0001 L CNN "Mouser Part Number"
F 11 "" H 13200 13600 50  0001 L CNN "Mouser Price/Stock"
	1    11750 14400
	1    0    0    -1  
$EndComp
$Comp
L AM26LS32ACN:AM26LS32ACN IC?
U 1 1 5ED94F21
P 14800 13400
F 0 "IC?" H 15300 13665 50  0000 C CNN
F 1 "AM26LS32PC" H 15300 13574 50  0000 C CNN
F 2 "DIP794W53P254L1930H508Q16N" H 15650 13500 50  0001 L CNN
F 3 "http://www.ti.com/lit/ds/symlink/am26ls32ac.pdf" H 15650 13400 50  0001 L CNN
F 4 "AM26LS32ACN, Quad Line Receiver, RS-422, V.11 Differential 5 V 16-Pin PDIP" H 15650 13300 50  0001 L CNN "Description"
F 5 "5.08" H 15650 13200 50  0001 L CNN "Height"
F 6 "Texas Instruments" H 15650 13100 50  0001 L CNN "Manufacturer_Name"
F 7 "AM26LS32ACN" H 15650 13000 50  0001 L CNN "Manufacturer_Part_Number"
F 8 "AM26LS32ACN" H 15650 12900 50  0001 L CNN "Arrow Part Number"
F 9 "https://www.arrow.com/en/products/am26ls32acn/texas-instruments" H 15650 12800 50  0001 L CNN "Arrow Price/Stock"
F 10 "595-AM26LS32ACN" H 15650 12700 50  0001 L CNN "Mouser Part Number"
F 11 "https://www.mouser.co.uk/ProductDetail/Texas-Instruments/AM26LS32ACN?qs=IF4wzcbwb3oK65Lb3k1iHg%3D%3D" H 15650 12600 50  0001 L CNN "Mouser Price/Stock"
	1    14800 13400
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS257 U2G
U 1 1 5EE1072C
P 10150 6750
F 0 "U2G" H 10150 7831 50  0000 C CNN
F 1 "74LS257" H 10150 7740 50  0000 C CNN
F 2 "" H 10150 6750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS257" H 10150 6750 50  0001 C CNN
	1    10150 6750
	1    0    0    -1  
$EndComp
$Comp
L Connector_Generic_Shielded:Conn_02x20_Top_Bottom_Shielded J5
U 1 1 5EDBF15D
P 22700 12650
F 0 "J5" H 22750 13765 50  0000 C CNN
F 1 "Conn_02x20_Top_Bottom_Shielded" H 22750 13674 50  0000 C CNN
F 2 "" H 22700 12650 50  0001 C CNN
F 3 "~" H 22700 12650 50  0001 C CNN
	1    22700 12650
	1    0    0    -1  
$EndComp
$EndSCHEMATC