Computer.sch

EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:Computer-cache
EELAYER 25 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L GND #PWR6
U 1 1 5887F82B
P 2300 4700
F 0 "#PWR6" H 2300 4450 50  0001 C CNN
F 1 "GND" H 2300 4550 50  0000 C CNN
F 2 "" H 2300 4700 50  0000 C CNN
F 3 "" H 2300 4700 50  0000 C CNN
	1    2300 4700
	1    0    0    -1  
$EndComp
$Comp
L LM2931AZ-5.0 U2
U 1 1 5887F84F
P 3050 4550
F 0 "U2" H 3050 4800 50  0000 C CNN
F 1 "LM2931AZ-5.0" H 3050 4750 50  0000 C CNN
F 2 "Power_Integrations:TO-220" H 3050 4650 50  0000 C CIN
F 3 "" H 3050 4550 50  0000 C CNN
	1    3050 4550
	1    0    0    -1  
$EndComp
$Comp
L CP C1
U 1 1 5887F885
P 3550 4650
F 0 "C1" H 3575 4750 50  0000 L CNN
F 1 "10 uF" H 3575 4550 50  0000 L CNN
F 2 "Capacitors_THT:CP_Radial_D8.0mm_P3.80mm" H 3588 4500 50  0001 C CNN
F 3 "" H 3550 4650 50  0000 C CNN
	1    3550 4650
	1    0    0    -1  
$EndComp
Text GLabel 3750 4500 2    60   Input ~ 0
Vcc
$Comp
L 8088 U3
U 1 1 5887FC39
P 5150 6750
F 0 "U3" H 4650 8450 50  0000 C CNN
F 1 "8088" H 5550 8450 50  0000 C CNN
F 2 "Housings_DIP:DIP-40_W15.24mm" H 5200 6850 50  0001 C CIN
F 3 "" H 5150 6800 50  0000 C CNN
	1    5150 6750
	1    0    0    -1  
$EndComp
$Comp
L 8284 U1
U 1 1 5887FC96
P 2850 5850
F 0 "U1" H 2300 6650 50  0000 L CNN
F 1 "8284" H 3200 6650 50  0000 L CNN
F 2 "Housings_DIP:DIP-18_W7.62mm" H 2850 5850 50  0001 C CIN
F 3 "" H 2850 5850 50  0000 C CNN
	1    2850 5850
	1    0    0    -1  
$EndComp
$Comp
L 28C256 U5
U 1 1 5887FD6E
P 7650 6000
F 0 "U5" H 7850 7000 50  0000 C CNN
F 1 "28C256" H 7950 5000 50  0000 C CNN
F 2 "Housings_DIP:DIP-28_W7.62mm" H 7650 6000 50  0001 C CNN
F 3 "" H 7650 6000 50  0000 C CNN
	1    7650 6000
	1    0    0    -1  
$EndComp
$Comp
L RAM_32KO U6
U 1 1 58880176
P 7650 8050
F 0 "U6" H 7800 8950 50  0000 C CNN
F 1 "RAM_32KO" H 7950 6950 50  0000 C CNN
F 2 "Housings_DIP:DIP-28_W7.62mm" H 7650 8050 50  0001 C CNN
F 3 "" H 7650 8050 50  0000 C CNN
	1    7650 8050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR11
U 1 1 58881BF2
P 4000 8700
F 0 "#PWR11" H 4000 8450 50  0001 C CNN
F 1 "GND" H 4000 8550 50  0000 C CNN
F 2 "" H 4000 8700 50  0000 C CNN
F 3 "" H 4000 8700 50  0000 C CNN
	1    4000 8700
	1    0    0    -1  
$EndComp
Text GLabel 4100 4950 3    60   Input ~ 0
Vcc
$Comp
L R R1
U 1 1 588821F5
P 2000 6250
F 0 "R1" V 2080 6250 50  0000 C CNN
F 1 "10k" V 2000 6250 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 1930 6250 50  0001 C CNN
F 3 "" H 2000 6250 50  0000 C CNN
	1    2000 6250
	0    1    1    0   
$EndComp
$Comp
L GND #PWR1
U 1 1 588822D4
P 1700 6250
F 0 "#PWR1" H 1700 6000 50  0001 C CNN
F 1 "GND" H 1700 6100 50  0000 C CNN
F 2 "" H 1700 6250 50  0000 C CNN
F 3 "" H 1700 6250 50  0000 C CNN
	1    1700 6250
	1    0    0    -1  
$EndComp
NoConn ~ 2150 5750
NoConn ~ 2150 5650
NoConn ~ 2150 5550
NoConn ~ 2150 5450
NoConn ~ 2150 5950
NoConn ~ 2150 6050
NoConn ~ 2150 6450
$Comp
L R R10
U 1 1 58887E5B
P 4300 7250
F 0 "R10" V 4380 7250 50  0000 C CNN
F 1 "10k" V 4300 7250 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4230 7250 50  0001 C CNN
F 3 "" H 4300 7250 50  0000 C CNN
	1    4300 7250
	0    1    1    0   
$EndComp
Text GLabel 4150 7250 3    60   Input ~ 0
Vcc
$Comp
L R R2
U 1 1 58887F07
P 1900 5050
F 0 "R2" V 1980 5050 50  0000 C CNN
F 1 "1k" V 1900 5050 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 1830 5050 50  0001 C CNN
F 3 "" H 1900 5050 50  0000 C CNN
	1    1900 5050
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 58887F94
P 1900 5400
F 0 "C2" H 1925 5500 50  0000 L CNN
F 1 "1n" H 1925 5300 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 1938 5250 50  0001 C CNN
F 3 "" H 1900 5400 50  0000 C CNN
	1    1900 5400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR4
U 1 1 58888005
P 1900 5550
F 0 "#PWR4" H 1900 5300 50  0001 C CNN
F 1 "GND" H 1900 5400 50  0000 C CNN
F 2 "" H 1900 5550 50  0000 C CNN
F 3 "" H 1900 5550 50  0000 C CNN
	1    1900 5550
	1    0    0    -1  
$EndComp
$Comp
L Crystal Y1
U 1 1 58888244
P 3850 6350
F 0 "Y1" H 3850 6500 50  0000 C CNN
F 1 "8 MHz" H 3850 6200 50  0000 C CNN
F 2 "Crystals:Crystal_SMD_FOX_FE-2pin_7.5x5.0mm" H 3850 6350 50  0001 C CNN
F 3 "" H 3850 6350 50  0000 C CNN
	1    3850 6350
	0    1    1    0   
$EndComp
$Comp
L R R7
U 1 1 588884E0
P 4300 6650
F 0 "R7" V 4380 6650 50  0000 C CNN
F 1 "10k" V 4300 6650 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4230 6650 50  0001 C CNN
F 3 "" H 4300 6650 50  0000 C CNN
	1    4300 6650
	0    1    1    0   
$EndComp
$Comp
L R R6
U 1 1 58888542
P 4300 6450
F 0 "R6" V 4380 6450 50  0000 C CNN
F 1 "10k" V 4300 6450 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4230 6450 50  0001 C CNN
F 3 "" H 4300 6450 50  0000 C CNN
	1    4300 6450
	0    1    1    0   
$EndComp
$Comp
L R R8
U 1 1 58888879
P 4300 6850
F 0 "R8" V 4380 6850 50  0000 C CNN
F 1 "10k" V 4300 6850 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4230 6850 50  0001 C CNN
F 3 "" H 4300 6850 50  0000 C CNN
	1    4300 6850
	0    1    1    0   
$EndComp
$Comp
L R R9
U 1 1 588888E0
P 4300 7050
F 0 "R9" V 4380 7050 50  0000 C CNN
F 1 "10k" V 4300 7050 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4230 7050 50  0001 C CNN
F 3 "" H 4300 7050 50  0000 C CNN
	1    4300 7050
	0    1    1    0   
$EndComp
NoConn ~ 5850 5250
NoConn ~ 5850 5350
NoConn ~ 5850 5450
$Comp
L 16450 U7
U 1 1 588ED192
P 10100 6300
F 0 "U7" H 9250 7900 50  0000 L CNN
F 1 "16450" H 10700 7900 50  0000 L CNN
F 2 "Housings_DIP:DIP-40_W15.24mm" H 10100 6300 50  0000 C CIN
F 3 "" H 10100 6300 50  0000 C CNN
	1    10100 6300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR16
U 1 1 588F1D61
P 10100 8150
F 0 "#PWR16" H 10100 7900 50  0001 C CNN
F 1 "GND" H 10100 8000 50  0000 C CNN
F 2 "" H 10100 8150 50  0000 C CNN
F 3 "" H 10100 8150 50  0000 C CNN
	1    10100 8150
	1    0    0    -1  
$EndComp
Text GLabel 10100 4600 2    60   Input ~ 0
Vcc
NoConn ~ 9100 7300
NoConn ~ 9100 7100
$Comp
L R R14
U 1 1 588F733E
P 8950 8150
F 0 "R14" V 9030 8150 50  0000 C CNN
F 1 "10k" V 8950 8150 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 8880 8150 50  0001 C CNN
F 3 "" H 8950 8150 50  0000 C CNN
	1    8950 8150
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR14
U 1 1 588F745E
P 8950 8300
F 0 "#PWR14" H 8950 8050 50  0001 C CNN
F 1 "GND" H 8950 8150 50  0000 C CNN
F 2 "" H 8950 8300 50  0000 C CNN
F 3 "" H 8950 8300 50  0000 C CNN
	1    8950 8300
	1    0    0    -1  
$EndComp
$Comp
L R R15
U 1 1 588F778A
P 9550 4550
F 0 "R15" V 9630 4550 50  0000 C CNN
F 1 "10k" V 9550 4550 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 9480 4550 50  0001 C CNN
F 3 "" H 9550 4550 50  0000 C CNN
	1    9550 4550
	0    1    1    0   
$EndComp
Text GLabel 9700 4550 2    60   Input ~ 0
Vcc
NoConn ~ 11100 5700
NoConn ~ 11100 6000
NoConn ~ 11100 7000
NoConn ~ 11100 7100
$Comp
L 74LS04 U4
U 1 1 588F7D27
P 6050 8750
F 0 "U4" H 6245 8865 50  0000 C CNN
F 1 "74LS04" H 6240 8625 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 6050 8750 50  0001 C CNN
F 3 "" H 6050 8750 50  0000 C CNN
	1    6050 8750
	1    0    0    -1  
$EndComp
Text GLabel 9100 6500 0    60   Input ~ 0
SXI
Text GLabel 9100 6800 0    60   Input ~ 0
SXO
Text GLabel 2050 9800 0    60   Input ~ 0
SXI
Text GLabel 2050 10350 0    60   Input ~ 0
SXO
$Comp
L R R13
U 1 1 588F986A
P 2400 10050
F 0 "R13" V 2480 10050 50  0000 C CNN
F 1 "2.2k" V 2400 10050 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 2330 10050 50  0001 C CNN
F 3 "" H 2400 10050 50  0000 C CNN
	1    2400 10050
	-1   0    0    1   
$EndComp
$Comp
L R R12
U 1 1 588F99AB
P 2200 10350
F 0 "R12" V 2280 10350 50  0000 C CNN
F 1 "2.2k" V 2200 10350 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 2130 10350 50  0001 C CNN
F 3 "" H 2200 10350 50  0000 C CNN
	1    2200 10350
	0    -1   -1   0   
$EndComp
$Comp
L Crystal Y2
U 1 1 588F9D3D
P 2700 10050
F 0 "Y2" H 2700 10200 50  0000 C CNN
F 1 "3.072 MHz" H 2700 9900 50  0000 C CNN
F 2 "Crystals:Crystal_SMD_FOX_FE-2pin_7.5x5.0mm" H 2700 10050 50  0001 C CNN
F 3 "" H 2700 10050 50  0000 C CNN
	1    2700 10050
	0    1    1    0   
$EndComp
$Comp
L C C3
U 1 1 588FA102
P 2700 10500
F 0 "C3" H 2725 10600 50  0000 L CNN
F 1 "10 pF" H 2725 10400 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 2738 10350 50  0001 C CNN
F 3 "" H 2700 10500 50  0000 C CNN
	1    2700 10500
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 588FA1C1
P 3000 10500
F 0 "C4" H 3025 10600 50  0000 L CNN
F 1 "10 pF" H 3025 10400 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 3038 10350 50  0001 C CNN
F 3 "" H 3000 10500 50  0000 C CNN
	1    3000 10500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR9
U 1 1 588FA3EB
P 3000 10650
F 0 "#PWR9" H 3000 10400 50  0001 C CNN
F 1 "GND" H 3000 10500 50  0000 C CNN
F 2 "" H 3000 10650 50  0000 C CNN
F 3 "" H 3000 10650 50  0000 C CNN
	1    3000 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR8
U 1 1 588FA459
P 2700 10650
F 0 "#PWR8" H 2700 10400 50  0001 C CNN
F 1 "GND" H 2700 10500 50  0000 C CNN
F 2 "" H 2700 10650 50  0000 C CNN
F 3 "" H 2700 10650 50  0000 C CNN
	1    2700 10650
	1    0    0    -1  
$EndComp
Text GLabel 5850 7250 2    60   Input ~ 0
A15
Text GLabel 5850 7450 2    60   Input ~ 0
A16
Text GLabel 5850 7550 2    60   Input ~ 0
A17
Text GLabel 5850 7650 2    60   Input ~ 0
A18
Text GLabel 5850 7750 2    60   Input ~ 0
A19
$Comp
L 8259 U12
U 1 1 58A13969
P 7900 3450
F 0 "U12" H 7500 4450 50  0000 C CNN
F 1 "8259" H 8250 4450 50  0000 C CNN
F 2 "Housings_DIP:DIP-28_W15.24mm" H 7900 3450 50  0000 C CIN
F 3 "" H 7900 3450 50  0000 C CNN
	1    7900 3450
	0    -1   -1   0   
$EndComp
Text GLabel 5850 7950 2    60   Input ~ 0
IO/M
Text GLabel 11250 3650 2    60   Input ~ 0
IO/M
Text GLabel 9100 7600 0    60   Input ~ 0
IRQ0
Text GLabel 4450 6050 0    60   Input ~ 0
INT
Text GLabel 4450 6250 0    60   Input ~ 0
INTA
Text GLabel 8600 4050 0    60   Input ~ 0
INT
Text GLabel 8700 4050 2    60   Input ~ 0
INTA
Text GLabel 7800 2850 1    60   Input ~ 0
IRQ0
$Comp
L GND #PWR15
U 1 1 58A2012A
P 9000 3450
F 0 "#PWR15" H 9000 3200 50  0001 C CNN
F 1 "GND" H 9000 3300 50  0000 C CNN
F 2 "" H 9000 3450 50  0000 C CNN
F 3 "" H 9000 3450 50  0000 C CNN
	1    9000 3450
	1    0    0    -1  
$EndComp
Text GLabel 6800 3450 0    60   Input ~ 0
Vcc
$Comp
L BUSPC BUS1
U 1 1 58A20465
P 4900 3100
F 0 "BUS1" H 4900 3200 50  0000 C CNN
F 1 "BUSPC" H 4900 3000 50  0000 C CNN
F 2 "Connectors:ISA8" H 4900 3100 50  0001 C CNN
F 3 "" H 4900 3100 50  0000 C CNN
	1    4900 3100
	0    1    1    0   
$EndComp
$Comp
L R R3
U 1 1 58A212AB
P 8400 2700
F 0 "R3" V 8480 2700 50  0000 C CNN
F 1 "10k" V 8400 2700 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 8330 2700 50  0001 C CNN
F 3 "" H 8400 2700 50  0000 C CNN
	1    8400 2700
	-1   0    0    1   
$EndComp
Text GLabel 8400 2550 1    60   Input ~ 0
Vcc
NoConn ~ 8200 2850
NoConn ~ 8100 2850
NoConn ~ 8000 2850
Text GLabel 5950 8300 0    60   Input ~ 0
WR
Text GLabel 5850 8150 2    60   Input ~ 0
RD
Text GLabel 5900 950  0    60   Input ~ 0
RD
Text GLabel 5750 1500 0    60   Input ~ 0
WR
$Comp
L 74LS04 U10
U 3 1 58A261B9
P 6350 950
F 0 "U10" H 6545 1065 50  0000 C CNN
F 1 "74LS04" H 6540 825 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 6350 950 50  0001 C CNN
F 3 "" H 6350 950 50  0000 C CNN
	3    6350 950 
	1    0    0    -1  
$EndComp
$Comp
L 7400 U11
U 3 1 58A2A8F1
P 6350 1400
F 0 "U11" H 6350 1450 50  0000 C CNN
F 1 "7400" H 6350 1300 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 6350 1400 50  0001 C CNN
F 3 "" H 6350 1400 50  0000 C CNN
	3    6350 1400
	1    0    0    -1  
$EndComp
Text GLabel 5750 1300 0    60   Input ~ 0
IO/M
Text GLabel 6800 750  0    60   Input ~ 0
IO/M
$Comp
L 7400 U11
U 4 1 58A2F8A1
P 7400 850
F 0 "U11" H 7400 900 50  0000 C CNN
F 1 "7400" H 7400 750 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 7400 850 50  0001 C CNN
F 3 "" H 7400 850 50  0000 C CNN
	4    7400 850 
	1    0    0    -1  
$EndComp
NoConn ~ 5700 2200
$Comp
L GND #PWR13
U 1 1 58A30571
P 6500 2200
F 0 "#PWR13" H 6500 1950 50  0001 C CNN
F 1 "GND" H 6500 2050 50  0000 C CNN
F 2 "" H 6500 2200 50  0000 C CNN
F 3 "" H 6500 2200 50  0000 C CNN
	1    6500 2200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR10
U 1 1 58A305FA
P 3250 2200
F 0 "#PWR10" H 3250 1950 50  0001 C CNN
F 1 "GND" H 3250 2050 50  0000 C CNN
F 2 "" H 3250 2200 50  0000 C CNN
F 3 "" H 3250 2200 50  0000 C CNN
	1    3250 2200
	1    0    0    -1  
$EndComp
NoConn ~ 5400 4000
Text GLabel 4900 4000 3    60   Input ~ 0
A15
Text GLabel 5000 4000 3    60   Input ~ 0
A16
Text GLabel 5100 4000 3    60   Input ~ 0
A17
Text GLabel 5200 4000 3    60   Input ~ 0
A18
Text GLabel 5300 4000 3    60   Input ~ 0
A19
$Comp
L Screw_Terminal_1x04 J2
U 1 1 58A3A76D
P 1150 4600
F 0 "J2" H 1150 5050 50  0000 C TNN
F 1 "Screw_Terminal_1x04" V 1000 4600 50  0000 C TNN
F 2 "Connectors_Terminal_Blocks:TerminalBlock_Pheonix_MKDS1.5-4pol" H 1150 4175 50  0001 C CNN
F 3 "" H 1125 4800 50  0001 C CNN
	1    1150 4600
	1    0    0    -1  
$EndComp
Text Notes 800  4300 0    60   ~ 0
+5v
Text Notes 800  4550 0    60   ~ 0
GND
Text Notes 800  4700 0    60   ~ 0
GND
Text Notes 750  4900 0    60   ~ 0
+12v
$Comp
L GND #PWR5
U 1 1 58A3B81F
P 2050 4300
F 0 "#PWR5" H 2050 4050 50  0001 C CNN
F 1 "GND" H 2050 4150 50  0000 C CNN
F 2 "" H 2050 4300 50  0000 C CNN
F 3 "" H 2050 4300 50  0000 C CNN
	1    2050 4300
	1    0    0    -1  
$EndComp
$Comp
L CP C5
U 1 1 58A3B8A8
P 2450 4150
F 0 "C5" H 2475 4250 50  0000 L CNN
F 1 "10 uF" H 2475 4050 50  0000 L CNN
F 2 "Capacitors_THT:CP_Radial_D8.0mm_P3.80mm" H 2488 4000 50  0001 C CNN
F 3 "" H 2450 4150 50  0000 C CNN
	1    2450 4150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR7
U 1 1 58A3B97D
P 2450 4300
F 0 "#PWR7" H 2450 4050 50  0001 C CNN
F 1 "GND" H 2450 4150 50  0000 C CNN
F 2 "" H 2450 4300 50  0000 C CNN
F 3 "" H 2450 4300 50  0000 C CNN
	1    2450 4300
	1    0    0    -1  
$EndComp
NoConn ~ 5900 2200
NoConn ~ 5000 2200
NoConn ~ 4900 2200
NoConn ~ 4800 2200
NoConn ~ 4700 2200
NoConn ~ 4600 2200
Text GLabel 3600 2200 1    60   Input ~ 0
Vcc
Text GLabel 6200 2200 1    60   Input ~ 0
Vcc
Text GLabel 4800 4000 3    60   Input ~ 0
A14
Text GLabel 4700 4000 3    60   Input ~ 0
A13
Text GLabel 4600 4000 3    60   Input ~ 0
A12
Text GLabel 4500 4000 3    60   Input ~ 0
A11
Text GLabel 4400 4000 3    60   Input ~ 0
A10
Text GLabel 4300 4000 3    60   Input ~ 0
A9
Text GLabel 4200 4000 3    60   Input ~ 0
A8
Text GLabel 4100 4000 3    60   Input ~ 0
A7
Text GLabel 4000 4000 3    60   Input ~ 0
A6
Text GLabel 3900 4000 3    60   Input ~ 0
A5
Text GLabel 3800 4000 3    60   Input ~ 0
A4
Text GLabel 3700 4000 3    60   Input ~ 0
A3
Text GLabel 3600 4000 3    60   Input ~ 0
A2
Text GLabel 3500 4000 3    60   Input ~ 0
A1
Text GLabel 3400 4000 3    60   Input ~ 0
A0
Text GLabel 6300 5650 3    60   Input ~ 0
A0
Text GLabel 5900 5750 3    60   Input ~ 0
A1
Text GLabel 6350 5850 3    60   Input ~ 0
A2
Text GLabel 5900 5950 3    60   Input ~ 0
A3
Text GLabel 6350 6050 3    60   Input ~ 0
A4
Text GLabel 5900 6150 3    60   Input ~ 0
A5
Text GLabel 6350 6250 3    60   Input ~ 0
A6
Text GLabel 5900 6350 3    60   Input ~ 0
A7
Text GLabel 6300 6550 3    60   Input ~ 0
A8
Text GLabel 6650 6550 3    60   Input ~ 0
A9
Text GLabel 6500 6750 3    60   Input ~ 0
A10
Text GLabel 6650 6850 3    60   Input ~ 0
A11
Text GLabel 6400 6950 3    60   Input ~ 0
A12
Text GLabel 6450 7050 3    60   Input ~ 0
A13
Text GLabel 6550 7150 3    60   Input ~ 0
A14
NoConn ~ 3700 2200
NoConn ~ 3800 2200
NoConn ~ 3900 2200
Text GLabel 3000 1550 0    60   Input ~ 0
RD
Text GLabel 3900 900  0    60   Input ~ 0
WR
Text GLabel 2750 1100 0    60   Input ~ 0
IO/M
$Comp
L 7400 U11
U 1 1 58A42734
P 4500 1000
F 0 "U11" H 4500 1050 50  0000 C CNN
F 1 "7400" H 4500 900 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 4500 1000 50  0001 C CNN
F 3 "" H 4500 1000 50  0000 C CNN
	1    4500 1000
	1    0    0    -1  
$EndComp
$Comp
L 7400 U11
U 2 1 58A42CBD
P 4500 1450
F 0 "U11" H 4500 1500 50  0000 C CNN
F 1 "7400" H 4500 1350 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 4500 1450 50  0001 C CNN
F 3 "" H 4500 1450 50  0000 C CNN
	2    4500 1450
	1    0    0    -1  
$EndComp
$Comp
L 74LS04 U10
U 1 1 58A45286
P 3200 1100
F 0 "U10" H 3395 1215 50  0000 C CNN
F 1 "74LS04" H 3390 975 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 3200 1100 50  0001 C CNN
F 3 "" H 3200 1100 50  0000 C CNN
	1    3200 1100
	1    0    0    -1  
$EndComp
$Comp
L 74LS04 U10
U 2 1 58A457D3
P 3450 1550
F 0 "U10" H 3645 1665 50  0000 C CNN
F 1 "74LS04" H 3640 1425 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 3450 1550 50  0001 C CNN
F 3 "" H 3450 1550 50  0000 C CNN
	2    3450 1550
	1    0    0    -1  
$EndComp
$Comp
L NCP1117DT12G U9
U 1 1 58A4843C
P 2050 4000
F 0 "U9" H 2050 4225 50  0000 C CNN
F 1 "NCP1117DT12G" H 2050 4150 50  0000 C CNN
F 2 "Power_Integrations:TO-220" H 2100 3750 50  0001 L CNN
F 3 "" H 2050 4000 50  0000 C CNN
	1    2050 4000
	1    0    0    -1  
$EndComp
$Comp
L 74LS138 U8
U 1 1 58C74473
P 4750 9350
F 0 "U8" H 4850 9850 50  0000 C CNN
F 1 "74LS138" H 4900 8801 50  0000 C CNN
F 2 "Housings_DIP:DIP-16_W7.62mm" H 4750 9350 50  0001 C CNN
F 3 "" H 4750 9350 50  0000 C CNN
	1    4750 9350
	1    0    0    -1  
$EndComp
Text GLabel 4150 9000 0    60   Input ~ 0
A17
Text GLabel 4150 9100 0    60   Input ~ 0
A18
Text GLabel 4150 9200 0    60   Input ~ 0
A19
NoConn ~ 5350 9100
NoConn ~ 5350 9200
NoConn ~ 5350 9300
NoConn ~ 5350 9400
NoConn ~ 5350 9500
NoConn ~ 5350 9600
$Comp
L R R11
U 1 1 58C815F6
P 7150 6600
F 0 "R11" V 7230 6600 50  0000 C CNN
F 1 "10k" V 7150 6600 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 7080 6600 50  0001 C CNN
F 3 "" H 7150 6600 50  0000 C CNN
	1    7150 6600
	0    -1   -1   0   
$EndComp
Text GLabel 7300 6600 2    60   Input ~ 0
Vcc
Text GLabel 6600 8800 2    60   Input ~ 0
RD
$Comp
L 74LS04 U10
U 4 1 58C89FA2
P 8900 8650
F 0 "U10" H 9095 8765 50  0000 C CNN
F 1 "74LS04" H 9090 8525 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 8900 8650 50  0001 C CNN
F 3 "" H 8900 8650 50  0000 C CNN
	4    8900 8650
	1    0    0    -1  
$EndComp
$Comp
L 74LS04 U10
U 6 1 58C8A055
P 10800 3650
F 0 "U10" H 10995 3765 50  0000 C CNN
F 1 "74LS04" H 10990 3525 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 10800 3650 50  0001 C CNN
F 3 "" H 10800 3650 50  0000 C CNN
	6    10800 3650
	-1   0    0    -1  
$EndComp
$Comp
L 74LS138 U13
U 1 1 58C8C469
P 9750 3300
F 0 "U13" H 9850 3800 50  0000 C CNN
F 1 "74LS138" H 9900 2751 50  0000 C CNN
F 2 "Housings_DIP:DIP-16_W7.62mm" H 9750 3300 50  0001 C CNN
F 3 "" H 9750 3300 50  0000 C CNN
	1    9750 3300
	-1   0    0    -1  
$EndComp
Text GLabel 4150 9600 0    60   Input ~ 0
IO/M
$Comp
L GND #PWR12
U 1 1 58C8EE59
P 4150 10000
F 0 "#PWR12" H 4150 9750 50  0001 C CNN
F 1 "GND" H 4150 9850 50  0000 C CNN
F 2 "" H 4150 10000 50  0000 C CNN
F 3 "" H 4150 10000 50  0000 C CNN
	1    4150 10000
	1    0    0    -1  
$EndComp
$Comp
L R R5
U 1 1 58C8EEE5
P 4150 9850
F 0 "R5" V 4230 9850 50  0000 C CNN
F 1 "10k" V 4150 9850 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4080 9850 50  0001 C CNN
F 3 "" H 4150 9850 50  0000 C CNN
	1    4150 9850
	-1   0    0    1   
$EndComp
$Comp
L R R4
U 1 1 58C8F15B
P 4000 9500
F 0 "R4" V 4080 9500 50  0000 C CNN
F 1 "10k" V 4000 9500 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 3930 9500 50  0001 C CNN
F 3 "" H 4000 9500 50  0000 C CNN
	1    4000 9500
	0    -1   -1   0   
$EndComp
Text GLabel 3850 9500 0    60   Input ~ 0
Vcc
$Comp
L R R16
U 1 1 58C92476
P 10450 3950
F 0 "R16" V 10530 3950 50  0000 C CNN
F 1 "10k" V 10450 3950 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 10380 3950 50  0001 C CNN
F 3 "" H 10450 3950 50  0000 C CNN
	1    10450 3950
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR17
U 1 1 58C92558
P 10450 4100
F 0 "#PWR17" H 10450 3850 50  0001 C CNN
F 1 "GND" H 10450 3950 50  0000 C CNN
F 2 "" H 10450 4100 50  0000 C CNN
F 3 "" H 10450 4100 50  0000 C CNN
	1    10450 4100
	1    0    0    -1  
$EndComp
$Comp
L R R17
U 1 1 58C928D5
P 10500 3450
F 0 "R17" V 10580 3450 50  0000 C CNN
F 1 "10k" V 10500 3450 50  0000 C CNN
F 2 "Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 10430 3450 50  0001 C CNN
F 3 "" H 10500 3450 50  0000 C CNN
	1    10500 3450
	0    -1   -1   0   
$EndComp
Text GLabel 10650 3450 2    60   Input ~ 0
Vcc
Text GLabel 10350 2950 2    60   Input ~ 0
A3
Text GLabel 10350 3050 2    60   Input ~ 0
A4
Text GLabel 10350 3150 2    60   Input ~ 0
A5
NoConn ~ 9150 3150
NoConn ~ 9150 3250
NoConn ~ 9150 3350
NoConn ~ 9150 3450
NoConn ~ 9150 3550
NoConn ~ 9150 3650
$Comp
L 74LS04 U10
U 5 1 58C98C89
P 9700 4200
F 0 "U10" H 9895 4315 50  0000 C CNN
F 1 "74LS04" H 9890 4075 50  0000 C CNN
F 2 "Housings_DIP:DIP-14_W7.62mm" H 9700 4200 50  0001 C CNN
F 3 "" H 9700 4200 50  0000 C CNN
	5    9700 4200
	-1   0    0    1   
$EndComp
Text GLabel 10150 4200 2    60   Input ~ 0
WR
Text GLabel 8300 4050 3    60   Input ~ 0
RD
$Comp
L GND #PWR3
U 1 1 58C76930
P 1850 3650
F 0 "#PWR3" H 1850 3400 50  0001 C CNN
F 1 "GND" H 1850 3500 50  0000 C CNN
F 2 "" H 1850 3650 50  0000 C CNN
F 3 "" H 1850 3650 50  0000 C CNN
	1    1850 3650
	1    0    0    -1  
$EndComp
$Comp
L LM7912CT U15
U 1 1 58C76B56
P 1850 3400
F 0 "U15" H 1650 3200 50  0000 C CNN
F 1 "LM7912CT" H 1850 3200 50  0000 L CNN
F 2 "Power_Integrations:TO-220" H 1850 3300 50  0000 C CIN
F 3 "" H 1850 3400 50  0000 C CNN
	1    1850 3400
	1    0    0    1   
$EndComp
$Comp
L LM7905CT U14
U 1 1 58C76E6A
P 1800 2750
F 0 "U14" H 1600 2550 50  0000 C CNN
F 1 "LM7905CT" H 1800 2550 50  0000 L CNN
F 2 "Power_Integrations:TO-220" H 1800 2650 50  0000 C CIN
F 3 "" H 1800 2750 50  0000 C CNN
	1    1800 2750
	1    0    0    1   
$EndComp
$Comp
L GND #PWR2
U 1 1 58C7715E
P 1800 3000
F 0 "#PWR2" H 1800 2750 50  0001 C CNN
F 1 "GND" H 1800 2850 50  0000 C CNN
F 2 "" H 1800 3000 50  0000 C CNN
F 3 "" H 1800 3000 50  0000 C CNN
	1    1800 3000
	1    0    0    -1  
$EndComp
$Comp
L MAX202 U16
U 1 1 58CB4A82
P 12550 6050
F 0 "U16" H 12450 7175 50  0000 R CNN
F 1 "MAX202" H 12450 7100 50  0000 R CNN
F 2 "Housings_DIP:DIP-16_W7.62mm" H 12600 5000 50  0001 L CNN
F 3 "" H 12550 6150 50  0001 C CNN
	1    12550 6050
	1    0    0    -1  
$EndComp
NoConn ~ 11750 8850
NoConn ~ 13350 8850
$Comp
L MAX202 U18
U 1 1 58CB5E86
P 14450 7550
F 0 "U18" H 14350 8675 50  0000 R CNN
F 1 "MAX202" H 14350 8600 50  0000 R CNN
F 2 "Housings_DIP:DIP-16_W7.62mm" H 14500 6500 50  0001 L CNN
F 3 "" H 14450 7650 50  0001 C CNN
	1    14450 7550
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 4600 2300 4700
Wire Wire Line
	2000 4500 2650 4500
Wire Wire Line
	2550 4800 3550 4800
Wire Wire Line
	2550 4800 2550 4650
Wire Wire Line
	2550 4650 2300 4650
Connection ~ 2300 4650
Wire Wire Line
	3450 4500 3750 4500
Connection ~ 3050 4800
Connection ~ 3550 4500
Wire Wire Line
	5950 5100 6950 5100
Wire Wire Line
	6000 5200 6950 5200
Wire Wire Line
	6050 5300 6950 5300
Wire Wire Line
	6100 5400 6950 5400
Wire Wire Line
	6150 5500 6950 5500
Wire Wire Line
	5850 8050 5950 8050
Wire Wire Line
	5950 8050 5950 8550
Wire Wire Line
	5950 8550 5600 8550
Wire Wire Line
	5600 8550 5600 8750
Wire Wire Line
	6500 8750 6500 9050
Wire Wire Line
	6500 9050 6950 9050
Wire Wire Line
	6600 6800 6600 8950
Wire Wire Line
	6600 8950 6950 8950
Wire Wire Line
	6600 6800 6950 6800
Wire Wire Line
	6200 5600 6950 5600
Wire Wire Line
	6250 5700 6950 5700
Wire Wire Line
	6300 5800 6950 5800
Wire Wire Line
	6750 5900 6950 5900
Wire Wire Line
	6800 6000 6950 6000
Wire Wire Line
	2850 8550 5250 8550
Connection ~ 5050 8550
Wire Wire Line
	4000 8550 4000 8700
Wire Wire Line
	2850 4950 5150 4950
Wire Wire Line
	1850 6250 1700 6250
Wire Wire Line
	3550 5250 4450 5250
Wire Wire Line
	3550 5450 4450 5450
Wire Wire Line
	3550 5650 4450 5650
Wire Wire Line
	5850 5650 6350 5650
Wire Wire Line
	5850 5750 6400 5750
Wire Wire Line
	5850 5850 6450 5850
Wire Wire Line
	5850 5950 6500 5950
Wire Wire Line
	5850 6050 6550 6050
Wire Wire Line
	5850 6150 6600 6150
Wire Wire Line
	5850 6250 6650 6250
Wire Wire Line
	5850 6350 6700 6350
Connection ~ 5950 5650
Connection ~ 6000 5750
Connection ~ 6050 5850
Connection ~ 6100 5950
Connection ~ 6150 6050
Connection ~ 6200 6150
Connection ~ 6250 6250
Connection ~ 6300 6350
Wire Wire Line
	5850 6550 6750 6550
Wire Wire Line
	5850 6650 6800 6650
Wire Wire Line
	5850 6750 6850 6750
Wire Wire Line
	5850 6850 6900 6850
Wire Wire Line
	5850 6950 6400 6950
Wire Wire Line
	5850 7050 6450 7050
Wire Wire Line
	5850 7150 6550 7150
Wire Wire Line
	8400 5100 8350 5100
Wire Wire Line
	8450 5200 8350 5200
Wire Wire Line
	8500 5300 8350 5300
Wire Wire Line
	8550 5400 8350 5400
Wire Wire Line
	8600 5500 8350 5500
Wire Wire Line
	8650 5600 8350 5600
Wire Wire Line
	8700 5700 8350 5700
Wire Wire Line
	8750 5800 8350 5800
Wire Wire Line
	8400 7250 8350 7250
Wire Wire Line
	8450 7350 8350 7350
Wire Wire Line
	8500 7450 8350 7450
Wire Wire Line
	8550 7550 8350 7550
Wire Wire Line
	8600 7650 8350 7650
Wire Wire Line
	8650 7750 8350 7750
Wire Wire Line
	8700 7850 8350 7850
Wire Wire Line
	8750 7950 8350 7950
Wire Wire Line
	1900 5250 2150 5250
Wire Wire Line
	1900 5200 1900 5250
Wire Wire Line
	1900 4900 2850 4900
Wire Wire Line
	2850 4900 2850 4950
Wire Wire Line
	3850 6200 3550 6200
Wire Wire Line
	3550 6200 3550 6250
Wire Wire Line
	3850 6500 3550 6500
Wire Wire Line
	3550 6500 3550 6450
Wire Wire Line
	4150 6450 4150 6650
Wire Wire Line
	4150 6650 3500 6650
Wire Wire Line
	3500 6650 3500 6750
Wire Wire Line
	3500 6750 2850 6750
Wire Wire Line
	4150 6850 4150 7250
Connection ~ 4150 7050
Wire Wire Line
	4300 5850 4450 5850
Wire Wire Line
	5950 5650 5950 5100
Wire Wire Line
	6350 5650 6350 4950
Wire Wire Line
	6350 4950 9100 4950
Wire Wire Line
	8400 4950 8400 5100
Wire Wire Line
	6000 5750 6000 5200
Wire Wire Line
	6400 5750 6400 4900
Wire Wire Line
	6400 4900 8450 4900
Wire Wire Line
	8450 4900 8450 7350
Wire Wire Line
	6050 5850 6050 5300
Wire Wire Line
	6100 5950 6100 5400
Wire Wire Line
	6150 6050 6150 5500
Wire Wire Line
	6200 5600 6200 6150
Wire Wire Line
	6250 6250 6250 5700
Wire Wire Line
	6300 6350 6300 5800
Wire Wire Line
	6450 5850 6450 4850
Wire Wire Line
	6450 4850 8500 4850
Wire Wire Line
	8500 4850 8500 7450
Wire Wire Line
	6500 5950 6500 4800
Wire Wire Line
	6500 4800 8550 4800
Wire Wire Line
	8550 4800 8550 7550
Wire Wire Line
	6550 6050 6550 4750
Wire Wire Line
	6550 4750 8600 4750
Wire Wire Line
	8600 4750 8600 7650
Wire Wire Line
	6600 6150 6600 4700
Wire Wire Line
	6600 4700 8650 4700
Wire Wire Line
	8650 4700 8650 7750
Wire Wire Line
	6650 6250 6650 4650
Wire Wire Line
	6650 4650 8700 4650
Wire Wire Line
	8700 4650 8700 7850
Wire Wire Line
	6700 6350 6700 4600
Wire Wire Line
	6700 4600 8750 4600
Wire Wire Line
	8750 4600 8750 7950
Wire Wire Line
	8350 5100 8350 7200
Wire Wire Line
	8350 7200 8400 7200
Wire Wire Line
	8400 7200 8400 7250
Connection ~ 8450 5200
Connection ~ 8500 5300
Connection ~ 8550 5400
Connection ~ 8600 5500
Connection ~ 8650 5600
Connection ~ 8700 5700
Connection ~ 8750 5800
Wire Wire Line
	6750 6550 6750 5900
Wire Wire Line
	6800 6650 6800 6000
Wire Wire Line
	6950 6100 6850 6100
Wire Wire Line
	6850 6100 6850 6750
Wire Wire Line
	6900 6200 6900 8350
Wire Wire Line
	6900 6200 6950 6200
Wire Wire Line
	6950 6300 6400 6300
Wire Wire Line
	6400 6300 6400 8450
Wire Wire Line
	6950 6400 6450 6400
Wire Wire Line
	6450 6400 6450 8550
Wire Wire Line
	6550 6500 6550 8650
Wire Wire Line
	6550 6500 6950 6500
Wire Wire Line
	6800 8950 6800 9300
Wire Wire Line
	6800 9300 8450 9300
Wire Wire Line
	8450 9300 8450 8650
Connection ~ 6800 8950
Wire Wire Line
	9100 5000 8450 5000
Connection ~ 8450 5000
Wire Wire Line
	9100 5100 8500 5100
Connection ~ 8500 5100
Wire Wire Line
	8550 5200 9100 5200
Connection ~ 8550 5200
Wire Wire Line
	9100 5400 8650 5400
Connection ~ 8650 5400
Wire Wire Line
	9100 5500 8700 5500
Connection ~ 8700 5500
Wire Wire Line
	9100 5600 8750 5600
Connection ~ 8750 5600
Wire Wire Line
	6900 5100 6900 4450
Wire Wire Line
	6900 4450 8900 4450
Wire Wire Line
	8900 4450 8900 5800
Wire Wire Line
	8900 5800 9100 5800
Connection ~ 6900 5100
Wire Wire Line
	9100 5900 8950 5900
Wire Wire Line
	8950 5900 8950 4400
Wire Wire Line
	8950 4400 6800 4400
Wire Wire Line
	6800 4400 6800 5200
Connection ~ 6800 5200
Wire Wire Line
	6750 5300 6750 4350
Wire Wire Line
	6750 4350 9000 4350
Wire Wire Line
	9000 4350 9000 6000
Wire Wire Line
	9000 6000 9100 6000
Connection ~ 6750 5300
Wire Wire Line
	9100 4950 9100 4900
Connection ~ 8400 4950
Wire Wire Line
	10100 8150 10100 8000
Wire Wire Line
	9100 5300 8600 5300
Connection ~ 8600 5300
Wire Wire Line
	9100 7200 8850 7200
Wire Wire Line
	8850 7200 8850 8250
Wire Wire Line
	8850 8250 8150 8250
Wire Wire Line
	8150 8250 8150 9400
Wire Wire Line
	8150 9400 6700 9400
Wire Wire Line
	6700 9400 6700 9250
Wire Wire Line
	6700 9250 5500 9250
Wire Wire Line
	5500 9250 5500 8450
Wire Wire Line
	5500 8450 5950 8450
Connection ~ 5950 8450
Wire Wire Line
	3700 5650 3700 10100
Wire Wire Line
	3700 10100 9550 10100
Wire Wire Line
	9550 10100 9550 8100
Wire Wire Line
	9550 8100 9050 8100
Wire Wire Line
	9050 8100 9050 7700
Wire Wire Line
	9050 7700 9100 7700
Connection ~ 3700 5650
Wire Wire Line
	9100 7500 9000 7500
Wire Wire Line
	9000 7500 9000 7800
Wire Wire Line
	9000 7800 8950 7800
Wire Wire Line
	8950 7800 8950 8000
Wire Wire Line
	9000 6200 9100 6200
Wire Wire Line
	9000 6100 9000 6200
Wire Wire Line
	9000 6100 9100 6100
Wire Wire Line
	9000 6150 8800 6150
Wire Wire Line
	8800 6150 8800 4550
Wire Wire Line
	8800 4550 9400 4550
Connection ~ 9000 6150
Wire Wire Line
	11100 7500 11100 7700
Wire Wire Line
	2050 9800 3000 9800
Wire Wire Line
	2400 9800 2400 9900
Wire Wire Line
	2400 10200 2400 10350
Wire Wire Line
	2350 10350 2700 10350
Wire Wire Line
	2700 9800 2700 9900
Connection ~ 2400 9800
Wire Wire Line
	2700 10350 2700 10200
Connection ~ 2400 10350
Wire Wire Line
	3000 9800 3000 10350
Connection ~ 2700 9800
Wire Wire Line
	5900 7350 6150 7350
Wire Wire Line
	6150 7350 6150 7250
Wire Wire Line
	6150 7250 6950 7250
Connection ~ 5900 5650
Wire Wire Line
	6950 7350 6250 7350
Wire Wire Line
	6250 7350 6250 7400
Wire Wire Line
	6250 7400 5950 7400
Wire Wire Line
	5950 7400 5950 5750
Connection ~ 5950 5750
Wire Wire Line
	6950 7450 6000 7450
Wire Wire Line
	6000 7450 6000 5850
Connection ~ 6000 5850
Wire Wire Line
	6950 7550 6050 7550
Wire Wire Line
	6050 7550 6050 5950
Connection ~ 6050 5950
Wire Wire Line
	6100 6050 6100 7650
Wire Wire Line
	6100 7650 6950 7650
Connection ~ 6100 6050
Wire Wire Line
	6150 6150 6150 7750
Wire Wire Line
	6150 7750 6950 7750
Connection ~ 6150 6150
Wire Wire Line
	6200 6250 6200 7850
Wire Wire Line
	6200 7850 6950 7850
Connection ~ 6200 6250
Wire Wire Line
	6250 6350 6250 7900
Wire Wire Line
	6250 7900 6300 7900
Wire Wire Line
	6300 7900 6300 7950
Wire Wire Line
	6300 7950 6950 7950
Connection ~ 6250 6350
Wire Wire Line
	6300 6550 6300 7800
Wire Wire Line
	6300 7800 6350 7800
Wire Wire Line
	6350 7800 6350 8050
Wire Wire Line
	6350 8050 6950 8050
Connection ~ 6300 6550
Wire Wire Line
	6350 6650 6350 7700
Wire Wire Line
	6350 7700 6650 7700
Wire Wire Line
	6650 7700 6650 8150
Wire Wire Line
	6650 8150 6950 8150
Connection ~ 6350 6650
Wire Wire Line
	6950 8250 6750 8250
Wire Wire Line
	6750 8250 6750 6750
Connection ~ 6750 6750
Connection ~ 6900 6850
Wire Wire Line
	6900 8350 6950 8350
Connection ~ 6900 8350
Wire Wire Line
	6400 8450 6950 8450
Connection ~ 6400 6950
Wire Wire Line
	6450 8550 6950 8550
Connection ~ 6450 7050
Wire Wire Line
	6550 8650 6950 8650
Connection ~ 6550 7150
Connection ~ 4000 8550
Wire Wire Line
	2850 6750 2850 8550
Wire Wire Line
	7100 4050 7100 4950
Connection ~ 7100 4950
Wire Wire Line
	7200 4050 7200 4900
Connection ~ 7200 4900
Wire Wire Line
	7300 4050 7300 4850
Connection ~ 7300 4850
Wire Wire Line
	7400 4050 7400 4800
Connection ~ 7400 4800
Wire Wire Line
	7500 4050 7500 4750
Connection ~ 7500 4750
Wire Wire Line
	7600 4050 7600 4700
Connection ~ 7600 4700
Wire Wire Line
	7700 4050 7700 4650
Connection ~ 7700 4650
Wire Wire Line
	7800 4050 7800 4600
Connection ~ 7800 4600
Wire Wire Line
	4000 2200 4000 1950
Wire Wire Line
	4000 1950 7500 1950
Wire Wire Line
	7500 1950 7500 2850
Wire Wire Line
	4100 2200 4100 2000
Wire Wire Line
	4100 2000 7400 2000
Wire Wire Line
	7400 2000 7400 2850
Wire Wire Line
	7300 2850 7300 2050
Wire Wire Line
	7300 2050 4200 2050
Wire Wire Line
	4200 2050 4200 2200
Wire Wire Line
	4300 2200 4300 2100
Wire Wire Line
	4300 2100 7200 2100
Wire Wire Line
	7200 2100 7200 2850
Wire Wire Line
	7100 2850 7100 2150
Wire Wire Line
	7100 2150 4400 2150
Wire Wire Line
	4400 2150 4400 2200
Wire Wire Line
	8000 4300 8000 4050
Wire Wire Line
	5700 4300 8000 4300
Connection ~ 7200 4300
Wire Wire Line
	6950 1400 6950 1850
Wire Wire Line
	6950 1850 5200 1850
Wire Wire Line
	5200 1850 5200 2200
Wire Wire Line
	5100 2200 5100 1900
Wire Wire Line
	5100 1900 8000 1900
Wire Wire Line
	8000 1900 8000 850 
Wire Wire Line
	3250 2200 3400 2200
Wire Wire Line
	6400 2200 6500 2200
Wire Wire Line
	5500 2200 5500 1750
Wire Wire Line
	5500 1750 6450 1750
Wire Wire Line
	6450 1750 6450 2200
Connection ~ 6450 2200
Wire Wire Line
	5500 4000 5500 4750
Wire Wire Line
	5500 4750 4250 4750
Wire Wire Line
	4250 4750 4250 5450
Connection ~ 4250 5450
Wire Wire Line
	7100 4100 5600 4100
Wire Wire Line
	5600 4100 5600 4000
Connection ~ 7100 4100
Wire Wire Line
	5700 4000 5700 4300
Wire Wire Line
	5800 4000 5800 4250
Wire Wire Line
	5800 4250 7300 4250
Connection ~ 7300 4250
Wire Wire Line
	7400 4050 5900 4050
Wire Wire Line
	5900 4050 5900 4000
Wire Wire Line
	6000 4000 6000 4150
Wire Wire Line
	6000 4150 7500 4150
Connection ~ 7500 4150
Wire Wire Line
	6100 4000 6100 4200
Wire Wire Line
	6100 4200 7600 4200
Wire Wire Line
	7600 4200 7600 4250
Connection ~ 7600 4250
Wire Wire Line
	7700 4500 6200 4500
Wire Wire Line
	6200 4500 6200 4000
Connection ~ 7700 4500
Wire Wire Line
	6300 4000 6300 4550
Wire Wire Line
	6300 4550 7800 4550
Connection ~ 7800 4550
Wire Wire Line
	4300 5850 4300 4600
Wire Wire Line
	4300 4600 6400 4600
Wire Wire Line
	6400 4600 6400 4000
Wire Wire Line
	3550 5850 4000 5850
Wire Wire Line
	4000 5850 4000 4100
Wire Wire Line
	4000 4100 3100 4100
Wire Wire Line
	3100 4100 3100 1900
Wire Wire Line
	3100 1900 4500 1900
Wire Wire Line
	4500 1900 4500 2200
Wire Wire Line
	3550 5950 4050 5950
Wire Wire Line
	4050 5950 4050 4250
Wire Wire Line
	4050 4250 3050 4250
Wire Wire Line
	3050 4250 3050 1850
Wire Wire Line
	3050 1850 3500 1850
Wire Wire Line
	3500 1850 3500 2200
Wire Wire Line
	6300 2200 6300 1800
Wire Wire Line
	6300 1800 3000 1800
Wire Wire Line
	3000 1800 3000 4300
Wire Wire Line
	3000 4300 3950 4300
Wire Wire Line
	3950 4300 3950 5650
Connection ~ 3950 5650
Wire Wire Line
	1350 4300 2000 4300
Wire Wire Line
	2000 4300 2000 4500
Wire Wire Line
	1350 4500 1350 4700
Wire Wire Line
	1350 4600 2300 4600
Connection ~ 1350 4600
Wire Wire Line
	1350 4900 1650 4900
Wire Wire Line
	1650 4900 1650 4000
Wire Wire Line
	2350 4000 2750 4000
Wire Wire Line
	2750 4000 2750 1700
Wire Wire Line
	2750 1700 5600 1700
Wire Wire Line
	5600 1700 5600 2200
Wire Wire Line
	6100 2200 6100 1700
Wire Wire Line
	6100 1700 7600 1700
Wire Wire Line
	7600 1700 7600 2850
Wire Wire Line
	5900 5650 5900 7350
Wire Wire Line
	5300 2200 5300 1450
Wire Wire Line
	5300 1450 5100 1450
Wire Wire Line
	5400 2200 5400 1000
Wire Wire Line
	5400 1000 5100 1000
Wire Wire Line
	3650 1100 3900 1100
Wire Wire Line
	3800 1100 3800 1350
Wire Wire Line
	3800 1350 3900 1350
Connection ~ 3800 1100
Connection ~ 2450 4000
Wire Wire Line
	1650 4000 1750 4000
Wire Wire Line
	5350 9700 5350 10050
Wire Wire Line
	5350 10050 8300 10050
Wire Wire Line
	8300 10050 8300 7000
Wire Wire Line
	8300 7000 6950 7000
Wire Wire Line
	6950 7000 6950 6900
Wire Wire Line
	5350 9000 6400 9000
Wire Wire Line
	6400 9000 6400 8850
Wire Wire Line
	6400 8850 6950 8850
Wire Wire Line
	7000 6600 6950 6600
Wire Wire Line
	6950 6600 6950 6700
Wire Wire Line
	9350 8650 9350 7900
Wire Wire Line
	9350 7900 8800 7900
Wire Wire Line
	8800 7900 8800 7400
Wire Wire Line
	8800 7400 9100 7400
Wire Wire Line
	10350 3550 10450 3550
Wire Wire Line
	10450 3550 10450 3800
Wire Wire Line
	9100 6300 9050 6300
Wire Wire Line
	9050 6300 9050 2950
Wire Wire Line
	9050 2950 9150 2950
Wire Wire Line
	9150 3050 9100 3050
Wire Wire Line
	9100 3050 9100 4150
Wire Wire Line
	9100 4150 8200 4150
Wire Wire Line
	8200 4150 8200 4050
Wire Wire Line
	9250 4200 8400 4200
Wire Wire Line
	8400 4200 8400 4050
Wire Wire Line
	1500 4900 1500 3400
Wire Wire Line
	1500 3400 1450 3400
Wire Wire Line
	1450 3400 1450 3350
Connection ~ 1500 4900
Wire Wire Line
	5800 2200 5800 1650
Wire Wire Line
	5800 1650 5100 1650
Wire Wire Line
	5100 1650 5100 1750
Wire Wire Line
	5100 1750 2300 1750
Wire Wire Line
	2300 1750 2300 3350
Wire Wire Line
	2300 3350 2250 3350
Wire Wire Line
	1400 4300 1400 2700
Connection ~ 1400 4300
Wire Wire Line
	6000 2200 6000 1600
Wire Wire Line
	6000 1600 4950 1600
Wire Wire Line
	4950 1600 4950 1850
Wire Wire Line
	4950 1850 3800 1850
Wire Wire Line
	3800 1850 3800 1950
Wire Wire Line
	3800 1950 2200 1950
Wire Wire Line
	2200 1950 2200 2700
Wire Wire Line
	11100 6500 11600 6500
Wire Wire Line
	11600 6500 11600 6550
Wire Wire Line
	11600 6550 11750 6550
Wire Wire Line
	11100 6600 11550 6600
Wire Wire Line
	11550 6600 11550 6150
Wire Wire Line
	11550 6150 11750 6150
Wire Wire Line
	11100 5800 11650 5800
Wire Wire Line
	11650 5800 11650 6350
Wire Wire Line
	11650 6350 11750 6350
Wire Wire Line
	11750 6750 11350 6750
Wire Wire Line
	11350 6750 11350 5300
Wire Wire Line
	11350 5300 11100 5300
Wire Wire Line
	11100 5900 11250 5900
Wire Wire Line
	11250 5900 11250 8650
Wire Wire Line
	11250 8650 11750 8650
Wire Wire Line
	11750 9050 11500 9050
Wire Wire Line
	11500 9050 11500 5400
Wire Wire Line
	11500 5400 11100 5400
Wire Wire Line
	11750 9250 11350 9250
Wire Wire Line
	11350 9250 11350 6900
Wire Wire Line
	11350 6900 11300 6900
Wire Wire Line
	11300 6900 11300 5200
Wire Wire Line
	11300 5200 11100 5200
Wire Wire Line
	13650 9900 11250 9900
Wire Wire Line
	11250 9900 11250 8850
Wire Wire Line
	11250 8850 11400 8850
Wire Wire Line
	11400 8850 11400 5100
Wire Wire Line
	11400 5100 11100 5100
Wire Wire Line
	13650 8100 13650 8050
Wire Wire Line
	13650 9900 13650 8550
Wire Wire Line
	13650 8550 13600 8550
Wire Wire Line
	13600 8550 13600 8100
Wire Wire Line
	13600 8100 13650 8100
NoConn ~ 13650 7650
NoConn ~ 15250 7650
NoConn ~ 15250 7850
NoConn ~ 13650 7850
NoConn ~ 13650 8250
NoConn ~ 15250 8250
$Comp
L C C7
U 1 1 58CB7A8D
P 11750 7800
F 0 "C7" H 11775 7900 50  0000 L CNN
F 1 "1 uF" H 11775 7700 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 11788 7650 50  0001 C CNN
F 3 "" H 11750 7800 50  0001 C CNN
	1    11750 7800
	1    0    0    -1  
$EndComp
$Comp
L C C10
U 1 1 58CB7B81
P 13350 7800
F 0 "C10" H 13375 7900 50  0000 L CNN
F 1 "1 uF" H 13375 7700 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 13388 7650 50  0001 C CNN
F 3 "" H 13350 7800 50  0001 C CNN
	1    13350 7800
	1    0    0    -1  
$EndComp
$Comp
L MAX202 U17
U 1 1 58CB7C6F
P 12550 8550
F 0 "U17" H 12450 9675 50  0000 R CNN
F 1 "MAX202" H 12450 9600 50  0000 R CNN
F 2 "Housings_DIP:DIP-16_W7.62mm" H 12600 7500 50  0001 L CNN
F 3 "" H 12550 8650 50  0001 C CNN
	1    12550 8550
	1    0    0    -1  
$EndComp
$Comp
L C C12
U 1 1 58CB7D34
P 13650 6800
F 0 "C12" H 13675 6900 50  0000 L CNN
F 1 "1 uF" H 13675 6700 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 13688 6650 50  0001 C CNN
F 3 "" H 13650 6800 50  0001 C CNN
	1    13650 6800
	1    0    0    -1  
$EndComp
$Comp
L C C13
U 1 1 58CB8036
P 15250 6800
F 0 "C13" H 15275 6900 50  0000 L CNN
F 1 "1 uF" H 15275 6700 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 15288 6650 50  0001 C CNN
F 3 "" H 15250 6800 50  0001 C CNN
	1    15250 6800
	1    0    0    -1  
$EndComp
$Comp
L C C8
U 1 1 58CB88C8
P 13350 5300
F 0 "C8" H 13375 5400 50  0000 L CNN
F 1 "1 uF" H 13375 5200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 13388 5150 50  0001 C CNN
F 3 "" H 13350 5300 50  0001 C CNN
	1    13350 5300
	1    0    0    -1  
$EndComp
$Comp
L C C6
U 1 1 58CB89CB
P 11750 5300
F 0 "C6" H 11775 5400 50  0000 L CNN
F 1 "1 uF" H 11775 5200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 11788 5150 50  0001 C CNN
F 3 "" H 11750 5300 50  0001 C CNN
	1    11750 5300
	1    0    0    -1  
$EndComp
$Comp
L C C9
U 1 1 58CBA92D
P 13350 5800
F 0 "C9" H 13375 5900 50  0000 L CNN
F 1 "1 uF" H 13375 5700 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 13388 5650 50  0001 C CNN
F 3 "" H 13350 5800 50  0001 C CNN
	1    13350 5800
	1    0    0    -1  
$EndComp
$Comp
L C C11
U 1 1 58CBAA14
P 13350 8300
F 0 "C11" H 13375 8400 50  0000 L CNN
F 1 "1 uF" H 13375 8200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 13388 8150 50  0001 C CNN
F 3 "" H 13350 8300 50  0001 C CNN
	1    13350 8300
	1    0    0    -1  
$EndComp
$Comp
L C C14
U 1 1 58CBAB12
P 15250 7300
F 0 "C14" H 15275 7400 50  0000 L CNN
F 1 "1 uF" H 15275 7200 50  0000 L CNN
F 2 "Capacitors_SMD:C_0603_HandSoldering" H 15288 7150 50  0001 C CNN
F 3 "" H 15250 7300 50  0001 C CNN
	1    15250 7300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR18
U 1 1 58CBB4A1
P 12550 9750
F 0 "#PWR18" H 12550 9500 50  0001 C CNN
F 1 "GND" H 12550 9600 50  0000 C CNN
F 2 "" H 12550 9750 50  0001 C CNN
F 3 "" H 12550 9750 50  0001 C CNN
	1    12550 9750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR19
U 1 1 58CBB52F
P 12750 7250
F 0 "#PWR19" H 12750 7000 50  0001 C CNN
F 1 "GND" H 12750 7100 50  0000 C CNN
F 2 "" H 12750 7250 50  0001 C CNN
F 3 "" H 12750 7250 50  0001 C CNN
	1    12750 7250
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR21
U 1 1 58CBB5BD
P 14450 8750
F 0 "#PWR21" H 14450 8500 50  0001 C CNN
F 1 "GND" H 14450 8600 50  0000 C CNN
F 2 "" H 14450 8750 50  0001 C CNN
F 3 "" H 14450 8750 50  0001 C CNN
	1    14450 8750
	1    0    0    -1  
$EndComp
Wire Wire Line
	12750 7250 12550 7250
Text GLabel 12550 7350 0    60   Input ~ 0
Vcc
Text GLabel 14450 6350 0    60   Input ~ 0
Vcc
Text GLabel 12550 4850 0    60   Input ~ 0
Vcc
$Comp
L DB9 J1
U 1 1 58CC1025
P 15000 5600
F 0 "J1" H 15000 6150 50  0000 C CNN
F 1 "DB9" H 15000 5050 50  0000 C CNN
F 2 "Connectors:DB9FC" H 15000 5600 50  0001 C CNN
F 3 "" H 15000 5600 50  0000 C CNN
	1    15000 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	13350 9250 15550 9250
Wire Wire Line
	15550 9250 15550 6350
Wire Wire Line
	15550 6350 14550 6350
Wire Wire Line
	14550 6350 14550 6000
Wire Wire Line
	13350 6550 13650 6550
Wire Wire Line
	13650 6550 13650 5800
Wire Wire Line
	13650 5800 14550 5800
Wire Wire Line
	13350 6150 13350 6000
Wire Wire Line
	13350 6000 14400 6000
Wire Wire Line
	14400 6000 14400 5600
Wire Wire Line
	14400 5600 14550 5600
Wire Wire Line
	13350 6350 13900 6350
Wire Wire Line
	13900 6350 13900 5400
Wire Wire Line
	13900 5400 14550 5400
$Comp
L GND #PWR20
U 1 1 58CC32E2
P 14450 6100
F 0 "#PWR20" H 14450 5850 50  0001 C CNN
F 1 "GND" H 14450 5950 50  0000 C CNN
F 2 "" H 14450 6100 50  0001 C CNN
F 3 "" H 14450 6100 50  0001 C CNN
	1    14450 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	14550 5200 14450 5200
Wire Wire Line
	14450 5200 14450 6100
Wire Wire Line
	13350 6750 13350 6250
Wire Wire Line
	13350 6250 14100 6250
Wire Wire Line
	14100 6250 14100 5900
Wire Wire Line
	14100 5900 14550 5900
Wire Wire Line
	13350 8650 13800 8650
Wire Wire Line
	13800 8650 13800 9100
Wire Wire Line
	13800 9100 15700 9100
Wire Wire Line
	15700 9100 15700 6200
Wire Wire Line
	15700 6200 14500 6200
Wire Wire Line
	14500 6200 14500 5700
Wire Wire Line
	14500 5700 14550 5700
Wire Wire Line
	13350 9050 13500 9050
Wire Wire Line
	13500 9050 13500 5950
Wire Wire Line
	13500 5950 13600 5950
Wire Wire Line
	13600 5950 13600 5500
Wire Wire Line
	13600 5500 14550 5500
Wire Wire Line
	15250 8050 15850 8050
Wire Wire Line
	15850 8050 15850 6100
Wire Wire Line
	15850 6100 14300 6100
Wire Wire Line
	14300 6100 14300 5300
Wire Wire Line
	14300 5300 14550 5300
$EndSCHEMATC