EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector_Generic:Conn_01x40 J1
U 1 1 5D4D81A3
P 750 2700
F 0 "J1" H 668 4817 50  0000 C CNN
F 1 "Conn_01x40" H 668 4726 50  0000 C CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x40_P2.54mm_Horizontal" H 750 2700 50  0001 C CNN
F 3 "~" H 750 2700 50  0001 C CNN
	1    750  2700
	-1   0    0    -1  
$EndComp
Text GLabel 950  800  2    50   Output ~ 0
A15
Text GLabel 950  900  2    50   Output ~ 0
A14
Text GLabel 950  1000 2    50   Output ~ 0
A13
Text GLabel 950  1100 2    50   Output ~ 0
A12
Text GLabel 950  1200 2    50   Output ~ 0
A11
Text GLabel 950  1300 2    50   Output ~ 0
A10
Text GLabel 950  1400 2    50   Output ~ 0
A9
Text GLabel 950  1500 2    50   Output ~ 0
A8
Text GLabel 950  1600 2    50   Output ~ 0
A7
Text GLabel 950  1700 2    50   Output ~ 0
A6
Text GLabel 950  1800 2    50   Output ~ 0
A5
Text GLabel 950  1900 2    50   Output ~ 0
A4
Text GLabel 950  2000 2    50   Output ~ 0
A3
Text GLabel 950  2100 2    50   Output ~ 0
A2
Text GLabel 950  2400 2    50   Output ~ 0
GND
Text GLabel 950  2500 2    50   Output ~ 0
5V
Text GLabel 950  2600 2    50   Output ~ 0
M1
Text GLabel 950  2700 2    50   3State ~ 0
RESET
Text GLabel 950  2800 2    50   Output ~ 0
CLK
Text GLabel 950  2900 2    50   Output ~ 0
INT
Text GLabel 950  3100 2    50   Output ~ 0
WR
Text GLabel 950  3200 2    50   Output ~ 0
RD
Text GLabel 950  3300 2    50   Output ~ 0
IORQ
Text GLabel 950  3400 2    50   3State ~ 0
D0
Text GLabel 950  3500 2    50   3State ~ 0
D1
Text GLabel 950  3600 2    50   3State ~ 0
D2
Text GLabel 950  3700 2    50   3State ~ 0
D3
Text GLabel 950  3800 2    50   3State ~ 0
D4
Text GLabel 950  3900 2    50   3State ~ 0
D5
Text GLabel 950  4000 2    50   3State ~ 0
D6
Text GLabel 950  4100 2    50   3State ~ 0
D7
$Comp
L 74xx_IEEE:74LS688 U2
U 1 1 5D4F1B7D
P 3550 2400
F 0 "U2" H 3550 3466 50  0000 C CNN
F 1 "74HCT688" H 3550 3375 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 3550 2400 50  0001 C CNN
F 3 "" H 3550 2400 50  0001 C CNN
	1    3550 2400
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U1
U 1 1 5D4F4C42
P 4400 2100
F 0 "U1" H 4400 2425 50  0000 C CNN
F 1 "74HCT32" H 4400 2334 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4400 2100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 4400 2100 50  0001 C CNN
	1    4400 2100
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U1
U 2 1 5D4F655C
P 4400 2850
F 0 "U1" H 4400 3175 50  0000 C CNN
F 1 "74HCT32" H 4400 3084 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4400 2850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 4400 2850 50  0001 C CNN
	2    4400 2850
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U1
U 3 1 5D4F6F81
P 8950 3200
F 0 "U1" H 8950 3525 50  0000 C CNN
F 1 "74HCT32" H 8950 3434 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8950 3200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 8950 3200 50  0001 C CNN
	3    8950 3200
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U1
U 4 1 5D4F8A2B
P 8950 3750
F 0 "U1" H 8950 4075 50  0000 C CNN
F 1 "74HCT32" H 8950 3984 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8950 3750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 8950 3750 50  0001 C CNN
	4    8950 3750
	1    0    0    -1  
$EndComp
Text GLabel 4100 2000 0    50   Input ~ 0
RD
Text GLabel 4100 2950 0    50   Input ~ 0
WR
$Comp
L Device:R_Network07 RN1
U 1 1 5D519A29
P 2000 1100
F 0 "RN1" H 2388 1146 50  0000 L CNN
F 1 "10K" H 2388 1055 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP8" V 2475 1100 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 2000 1100 50  0001 C CNN
	1    2000 1100
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 1300 2300 1700
Wire Wire Line
	2300 1700 3000 1700
Wire Wire Line
	3000 1800 2200 1800
Wire Wire Line
	2200 1800 2200 1300
Wire Wire Line
	2100 1300 2100 1900
Wire Wire Line
	2000 2000 2000 1300
Wire Wire Line
	1900 1300 1900 2100
Wire Wire Line
	1900 2100 3000 2100
Wire Wire Line
	2000 2000 3000 2000
Wire Wire Line
	3000 2200 1800 2200
Wire Wire Line
	1800 2200 1800 1300
Text GLabel 3000 2500 0    50   Input ~ 0
A7
Text GLabel 3000 2600 0    50   Input ~ 0
A6
Text GLabel 3000 2700 0    50   Input ~ 0
A5
Text GLabel 3000 2800 0    50   Input ~ 0
A4
Text GLabel 3000 2900 0    50   Input ~ 0
A3
Text GLabel 3000 3000 0    50   Input ~ 0
A2
Text GLabel 3000 3200 0    50   Input ~ 0
M1
Text GLabel 3000 1600 0    50   Input ~ 0
IORQ
$Comp
L Connector_Generic:Conn_02x06_Odd_Even J2
U 1 1 5D539983
P 2000 2950
F 0 "J2" V 2096 2562 50  0000 R CNN
F 1 "Conn_02x06_Top_Bottom" V 2005 2562 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_2x06_P2.54mm_Vertical" H 2000 2950 50  0001 C CNN
F 3 "~" H 2000 2950 50  0001 C CNN
	1    2000 2950
	0    -1   -1   0   
$EndComp
$Comp
L power:GND #PWR0104
U 1 1 5D53B6A4
P 2000 3150
F 0 "#PWR0104" H 2000 2900 50  0001 C CNN
F 1 "GND" H 2005 2977 50  0000 C CNN
F 2 "" H 2000 3150 50  0001 C CNN
F 3 "" H 2000 3150 50  0001 C CNN
	1    2000 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	1800 3150 1900 3150
Connection ~ 1900 3150
Wire Wire Line
	1900 3150 2000 3150
Connection ~ 2000 3150
Wire Wire Line
	2000 3150 2100 3150
Connection ~ 2100 3150
Wire Wire Line
	2100 3150 2200 3150
Connection ~ 2200 3150
Wire Wire Line
	2200 3150 2300 3150
Wire Wire Line
	2300 2650 2300 1700
Connection ~ 2300 1700
Wire Wire Line
	2200 2650 2200 1800
Connection ~ 2200 1800
Wire Wire Line
	2100 1900 3000 1900
Wire Wire Line
	2100 2650 2100 1900
Connection ~ 2100 1900
Wire Wire Line
	2000 2650 2000 2000
Connection ~ 2000 2000
Wire Wire Line
	1900 2650 1900 2100
Connection ~ 1900 2100
Wire Wire Line
	1800 2650 1800 2200
Connection ~ 1800 2200
$Comp
L Device:C C1
U 1 1 5D57E02E
P 1150 7050
F 0 "C1" H 1265 7096 50  0000 L CNN
F 1 "0.1uF" H 1265 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 1188 6900 50  0001 C CNN
F 3 "~" H 1150 7050 50  0001 C CNN
	1    1150 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C2
U 1 1 5D57E8D5
P 1600 7050
F 0 "C2" H 1715 7096 50  0000 L CNN
F 1 "0.1uF" H 1715 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 1638 6900 50  0001 C CNN
F 3 "~" H 1600 7050 50  0001 C CNN
	1    1600 7050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 5D580F42
P 1150 7400
F 0 "#PWR0105" H 1150 7150 50  0001 C CNN
F 1 "GND" H 1155 7227 50  0000 C CNN
F 2 "" H 1150 7400 50  0001 C CNN
F 3 "" H 1150 7400 50  0001 C CNN
	1    1150 7400
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 5D5820E1
P 1600 6900
F 0 "#FLG0101" H 1600 6975 50  0001 C CNN
F 1 "PWR_FLAG" H 1600 7073 50  0000 C CNN
F 2 "" H 1600 6900 50  0001 C CNN
F 3 "~" H 1600 6900 50  0001 C CNN
	1    1600 6900
	1    0    0    -1  
$EndComp
Connection ~ 1600 6900
Connection ~ 1150 7200
Connection ~ 1150 6900
Wire Wire Line
	1150 7200 1600 7200
Text GLabel 950  6900 0    50   Input ~ 0
5V
Text GLabel 950  7200 0    50   Input ~ 0
GND
Wire Wire Line
	950  6900 1150 6900
Wire Wire Line
	1150 7200 950  7200
Wire Wire Line
	3000 2300 2700 2300
Wire Wire Line
	2700 2300 2700 3100
Wire Wire Line
	2700 3150 2300 3150
Connection ~ 2300 3150
Wire Wire Line
	3000 3100 2700 3100
Connection ~ 2700 3100
Wire Wire Line
	2700 3100 2700 3150
Wire Wire Line
	3000 2400 1700 2400
Wire Wire Line
	1700 2400 1700 1300
Wire Wire Line
	3550 1550 3550 1450
Wire Wire Line
	1150 6700 1150 6900
Wire Wire Line
	1150 7200 1150 7400
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 5D6326D1
P 1600 7200
F 0 "#FLG0102" H 1600 7275 50  0001 C CNN
F 1 "PWR_FLAG" H 1600 7373 50  0000 C CNN
F 2 "" H 1600 7200 50  0001 C CNN
F 3 "~" H 1600 7200 50  0001 C CNN
	1    1600 7200
	-1   0    0    1   
$EndComp
Connection ~ 1600 7200
Wire Wire Line
	1150 6900 1600 6900
$Comp
L power:VCC #PWR0101
U 1 1 5D644407
P 1150 6700
F 0 "#PWR0101" H 1150 6550 50  0001 C CNN
F 1 "VCC" H 1167 6873 50  0000 C CNN
F 2 "" H 1150 6700 50  0001 C CNN
F 3 "" H 1150 6700 50  0001 C CNN
	1    1150 6700
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0102
U 1 1 5D6457FA
P 1700 900
F 0 "#PWR0102" H 1700 750 50  0001 C CNN
F 1 "VCC" H 1717 1073 50  0000 C CNN
F 2 "" H 1700 900 50  0001 C CNN
F 3 "" H 1700 900 50  0001 C CNN
	1    1700 900 
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0106
U 1 1 5D649074
P 3550 1200
F 0 "#PWR0106" H 3550 1050 50  0001 C CNN
F 1 "VCC" H 3567 1373 50  0000 C CNN
F 2 "" H 3550 1200 50  0001 C CNN
F 3 "" H 3550 1200 50  0001 C CNN
	1    3550 1200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0107
U 1 1 5D675183
P 6100 7500
F 0 "#PWR0107" H 6100 7250 50  0001 C CNN
F 1 "GND" H 6105 7327 50  0000 C CNN
F 2 "" H 6100 7500 50  0001 C CNN
F 3 "" H 6100 7500 50  0001 C CNN
	1    6100 7500
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0108
U 1 1 5D675BEE
P 6100 6500
F 0 "#PWR0108" H 6100 6350 50  0001 C CNN
F 1 "VCC" H 6117 6673 50  0000 C CNN
F 2 "" H 6100 6500 50  0001 C CNN
F 3 "" H 6100 6500 50  0001 C CNN
	1    6100 6500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0103
U 1 1 5D5C2912
P 3550 3250
F 0 "#PWR0103" H 3550 3000 50  0001 C CNN
F 1 "GND" H 3555 3077 50  0000 C CNN
F 2 "" H 3550 3250 50  0001 C CNN
F 3 "" H 3550 3250 50  0001 C CNN
	1    3550 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	4100 2200 4100 2450
Connection ~ 4100 2450
Wire Wire Line
	4100 2450 4100 2750
$Comp
L power:VCC #PWR0109
U 1 1 5D64BA8D
P 6450 650
F 0 "#PWR0109" H 6450 500 50  0001 C CNN
F 1 "VCC" H 6467 823 50  0000 C CNN
F 2 "" H 6450 650 50  0001 C CNN
F 3 "" H 6450 650 50  0001 C CNN
	1    6450 650 
	1    0    0    -1  
$EndComp
Text GLabel 1800 4250 0    50   3State ~ 0
D0
Text GLabel 1800 4350 0    50   3State ~ 0
D1
Text GLabel 1800 4450 0    50   3State ~ 0
D2
Text GLabel 1800 4550 0    50   3State ~ 0
D3
Text GLabel 1800 4650 0    50   3State ~ 0
D4
Text GLabel 1800 4750 0    50   3State ~ 0
D5
Text GLabel 1800 4850 0    50   3State ~ 0
D6
Text GLabel 1800 4950 0    50   3State ~ 0
D7
Text GLabel 2800 4250 2    50   3State ~ 0
SD0
Text GLabel 2800 4350 2    50   3State ~ 0
SD1
Text GLabel 2800 4450 2    50   3State ~ 0
SD2
Text GLabel 2800 4550 2    50   3State ~ 0
SD3
Text GLabel 2800 4650 2    50   3State ~ 0
SD4
Text GLabel 2800 4750 2    50   3State ~ 0
SD5
Text GLabel 2800 4850 2    50   3State ~ 0
SD6
Text GLabel 2800 4950 2    50   3State ~ 0
SD7
Text GLabel 1800 5150 0    50   Input ~ 0
IOWR
Text GLabel 1800 5250 0    50   3State ~ 0
SLIORD
Text GLabel 3500 4250 0    50   3State ~ 0
SD0
Text GLabel 3500 4350 0    50   3State ~ 0
SD1
Text GLabel 3500 4450 0    50   3State ~ 0
SD2
Text GLabel 3500 4550 0    50   3State ~ 0
SD3
Text GLabel 3500 4650 0    50   3State ~ 0
SD4
Text GLabel 3500 4750 0    50   3State ~ 0
SD5
Text GLabel 3500 4850 0    50   3State ~ 0
SD6
Text GLabel 3500 4950 0    50   3State ~ 0
SD7
Text GLabel 4500 4250 2    50   3State ~ 0
D0
Text GLabel 4500 4350 2    50   3State ~ 0
D1
Text GLabel 4500 4450 2    50   3State ~ 0
D2
Text GLabel 4500 4550 2    50   3State ~ 0
D3
Text GLabel 4500 4650 2    50   3State ~ 0
D4
Text GLabel 4500 4750 2    50   3State ~ 0
D5
Text GLabel 4500 4850 2    50   3State ~ 0
D6
Text GLabel 4500 4950 2    50   3State ~ 0
D7
Text GLabel 3500 5150 0    50   Input ~ 0
SLIOWR
Text GLabel 3500 5250 0    50   3State ~ 0
IORD
$Comp
L 74xx:74LS273 U7
U 1 1 5D682306
P 5550 4750
F 0 "U7" H 5550 5731 50  0000 C CNN
F 1 "74HCT273" H 5550 5640 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm_Socket" H 5550 4750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS273" H 5550 4750 50  0001 C CNN
	1    5550 4750
	1    0    0    -1  
$EndComp
Text GLabel 5050 4250 0    50   Input ~ 0
A8
Text GLabel 5050 4350 0    50   Input ~ 0
A9
Text GLabel 5050 4450 0    50   Input ~ 0
A10
Text GLabel 5050 4550 0    50   Input ~ 0
A11
Text GLabel 5050 4650 0    50   Input ~ 0
A12
Text GLabel 5050 4750 0    50   Input ~ 0
A13
Text GLabel 5050 4850 0    50   Input ~ 0
A14
Text GLabel 5050 4950 0    50   Input ~ 0
A15
Text GLabel 5050 5150 0    50   Input ~ 0
IOWR
Text GLabel 5050 5250 0    50   3State ~ 0
RESET
Text GLabel 6050 4250 2    50   Output ~ 0
SLRESET
Text GLabel 6050 4350 2    50   Output ~ 0
SLNMI
Text GLabel 6050 4450 2    50   Output ~ 0
SLINT
$Comp
L 74xx:74LS273 U6
U 1 1 5D6B248C
P 7350 4750
F 0 "U6" H 7350 5731 50  0000 C CNN
F 1 "74HCT273" H 7350 5640 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm_Socket" H 7350 4750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS273" H 7350 4750 50  0001 C CNN
	1    7350 4750
	1    0    0    -1  
$EndComp
Text GLabel 6850 4250 0    50   Input ~ 0
SA8
Text GLabel 6850 4350 0    50   Input ~ 0
SA9
Text GLabel 6850 4450 0    50   Input ~ 0
SA10
Text GLabel 6850 4550 0    50   Input ~ 0
SA11
Text GLabel 6850 4650 0    50   Input ~ 0
SA12
Text GLabel 6850 4750 0    50   Input ~ 0
SA13
Text GLabel 6850 4850 0    50   Input ~ 0
SA14
Text GLabel 6850 4950 0    50   Input ~ 0
SA15
Text GLabel 6850 5150 0    50   Input ~ 0
SLIOWR
Text GLabel 6850 5250 0    50   Input ~ 0
SLRESET
Wire Wire Line
	8650 3300 8650 3650
Text GLabel 8650 3500 0    50   Input ~ 0
SLIORQ
Text GLabel 8650 3100 0    50   Input ~ 0
SLRD
Text GLabel 8650 3850 0    50   Input ~ 0
SLWR
Text GLabel 9250 3200 2    50   Output ~ 0
SLIORD
Text GLabel 9250 3750 2    50   Output ~ 0
SLIOWR
Text GLabel 10550 1050 2    50   BiDi ~ 0
SD0
Text GLabel 10550 1150 2    50   BiDi ~ 0
SD1
Text GLabel 10550 1250 2    50   BiDi ~ 0
SD2
Text GLabel 10550 1350 2    50   BiDi ~ 0
SD3
Text GLabel 10550 1450 2    50   BiDi ~ 0
SD4
Text GLabel 10550 1550 2    50   BiDi ~ 0
SD5
Text GLabel 10550 1650 2    50   BiDi ~ 0
SD6
Text GLabel 10550 1750 2    50   BiDi ~ 0
SD7
Text GLabel 9550 1050 0    50   Input ~ 0
SA0
Text GLabel 9550 1150 0    50   Input ~ 0
SA1
Text GLabel 9550 1250 0    50   Input ~ 0
SA2
Text GLabel 9550 1350 0    50   Input ~ 0
SA3
Text GLabel 9550 1450 0    50   Input ~ 0
SA4
Text GLabel 9550 1550 0    50   Input ~ 0
SA5
Text GLabel 9550 1650 0    50   Input ~ 0
SA6
Text GLabel 9550 1750 0    50   Input ~ 0
SA7
Text GLabel 9550 1850 0    50   Input ~ 0
SA8
Text GLabel 9550 1950 0    50   Input ~ 0
SA9
Text GLabel 9550 2050 0    50   Input ~ 0
SA10
Text GLabel 9550 2150 0    50   Input ~ 0
SA11
Text GLabel 9550 2250 0    50   Input ~ 0
SA12
Text GLabel 9550 2350 0    50   Input ~ 0
SA13
Text GLabel 9550 2450 0    50   Input ~ 0
SA14
Text GLabel 9550 2550 0    50   Input ~ 0
SA15
Text GLabel 9550 2650 0    50   Input ~ 0
SA16
Text GLabel 10550 2050 2    50   Input ~ 0
RAMCS
Text GLabel 10550 2250 2    50   Input ~ 0
SLWR
Text GLabel 10550 2150 2    50   Input ~ 0
SLRD
Text GLabel 7850 4450 2    50   Output ~ 0
SA16
$Comp
L Memory_EPROM:27C256 U5
U 1 1 5D7DC580
P 10050 5050
F 0 "U5" H 10050 6331 50  0000 C CNN
F 1 "27C256" H 10050 6240 50  0000 C CNN
F 2 "Package_DIP:DIP-28_W15.24mm" H 10050 5050 50  0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0014.pdf" H 10050 5050 50  0001 C CNN
	1    10050 5050
	1    0    0    -1  
$EndComp
Text GLabel 9650 4150 0    50   Input ~ 0
SA0
Text GLabel 9650 4250 0    50   Input ~ 0
SA1
Text GLabel 9650 4350 0    50   Input ~ 0
SA2
Text GLabel 9650 4450 0    50   Input ~ 0
SA3
Text GLabel 9650 4550 0    50   Input ~ 0
SA4
Text GLabel 9650 4650 0    50   Input ~ 0
SA5
Text GLabel 9650 4750 0    50   Input ~ 0
SA6
Text GLabel 9650 4850 0    50   Input ~ 0
SA7
Text GLabel 9650 4950 0    50   Input ~ 0
SA8
Text GLabel 9650 5050 0    50   Input ~ 0
SA9
Text GLabel 9650 5150 0    50   Input ~ 0
SA10
Text GLabel 9650 5250 0    50   Input ~ 0
SA11
Text GLabel 9650 5350 0    50   Input ~ 0
SA12
Text GLabel 9650 5450 0    50   Input ~ 0
SA13
Text GLabel 9650 5550 0    50   Input ~ 0
SA14
Text GLabel 9650 5950 0    50   Input ~ 0
SLRD
Text GLabel 10450 4150 2    50   3State ~ 0
SD0
Text GLabel 10450 4250 2    50   3State ~ 0
SD1
Text GLabel 10450 4350 2    50   3State ~ 0
SD2
Text GLabel 10450 4450 2    50   3State ~ 0
SD3
Text GLabel 10450 4550 2    50   3State ~ 0
SD4
Text GLabel 10450 4650 2    50   3State ~ 0
SD5
Text GLabel 10450 4750 2    50   3State ~ 0
SD6
Text GLabel 10450 4850 2    50   3State ~ 0
SD7
$Comp
L 74xx:74LS32 U1
U 5 1 5D672454
P 6100 7000
F 0 "U1" H 6330 7046 50  0000 L CNN
F 1 "74HCT32" H 6330 6955 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 6100 7000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 6100 7000 50  0001 C CNN
	5    6100 7000
	1    0    0    -1  
$EndComp
Text GLabel 7850 4350 2    50   Output ~ 0
ROMEN
Text GLabel 9650 5850 0    50   Input ~ 0
ROMCS
$Comp
L 74xx:74LS139 U10
U 1 1 5D8A4B87
P 8300 1100
F 0 "U10" H 8300 1467 50  0000 C CNN
F 1 "74HCT139" H 8300 1376 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 8300 1100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 8300 1100 50  0001 C CNN
	1    8300 1100
	1    0    0    -1  
$EndComp
Text GLabel 7800 1300 0    50   Input ~ 0
SLMREQ
Text GLabel 7800 1000 0    50   Input ~ 0
SA15
Text GLabel 7800 1100 0    50   Input ~ 0
ROMEN
$Comp
L 74xx:74LS139 U10
U 2 1 5D8AD2C4
P 8350 2050
F 0 "U10" H 8350 2417 50  0000 C CNN
F 1 "74HCT139" H 8350 2326 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 8350 2050 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 8350 2050 50  0001 C CNN
	2    8350 2050
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS139 U10
U 3 1 5D8AF0EB
P 5250 7000
F 0 "U10" H 5480 7046 50  0000 L CNN
F 1 "74HCT139" H 5480 6955 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 5250 7000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 5250 7000 50  0001 C CNN
	3    5250 7000
	1    0    0    -1  
$EndComp
$Comp
L Memory_RAM:AS6C4008-55PCN U4
U 1 1 5D8BE693
P 10050 1950
F 0 "U4" H 10500 3200 50  0000 C CNN
F 1 "AS6C4008-55PCN" H 10550 3100 50  0000 C CNN
F 2 "Package_DIP:DIP-32_W15.24mm" H 10050 2050 50  0001 C CNN
F 3 "https://www.alliancememory.com/wp-content/uploads/pdf/AS6C4008.pdf" H 10050 2050 50  0001 C CNN
	1    10050 1950
	1    0    0    -1  
$EndComp
Text GLabel 9550 2750 0    50   Input ~ 0
SA17
Text GLabel 9550 2850 0    50   Input ~ 0
SA18
Text GLabel 7850 4550 2    50   Output ~ 0
SA17
Text GLabel 7850 4650 2    50   Output ~ 0
SA18
Text GLabel 8800 1000 2    50   Output ~ 0
ROMCS
Text GLabel 7850 2250 0    50   Input ~ 0
SLMREQ
Text GLabel 7850 1950 0    50   Input ~ 0
ROMCS
Text GLabel 7850 2050 0    50   Input ~ 0
ROMCS
Text GLabel 8850 2250 2    50   Output ~ 0
RAMCS
$Comp
L Device:C C3
U 1 1 5D8EC8CB
P 1950 7050
F 0 "C3" H 2065 7096 50  0000 L CNN
F 1 "0.1uF" H 2065 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 1988 6900 50  0001 C CNN
F 3 "~" H 1950 7050 50  0001 C CNN
	1    1950 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C4
U 1 1 5D8ED05B
P 2300 7050
F 0 "C4" H 2415 7096 50  0000 L CNN
F 1 "0.1uF" H 2415 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2338 6900 50  0001 C CNN
F 3 "~" H 2300 7050 50  0001 C CNN
	1    2300 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C5
U 1 1 5D8ED8E4
P 2650 7050
F 0 "C5" H 2765 7096 50  0000 L CNN
F 1 "0.1uF" H 2765 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2688 6900 50  0001 C CNN
F 3 "~" H 2650 7050 50  0001 C CNN
	1    2650 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C6
U 1 1 5D8EE219
P 2950 7050
F 0 "C6" H 3065 7096 50  0000 L CNN
F 1 "0.1uF" H 3065 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2988 6900 50  0001 C CNN
F 3 "~" H 2950 7050 50  0001 C CNN
	1    2950 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C7
U 1 1 5D8EEA1D
P 3350 7050
F 0 "C7" H 3465 7096 50  0000 L CNN
F 1 "0.1uF" H 3465 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 3388 6900 50  0001 C CNN
F 3 "~" H 3350 7050 50  0001 C CNN
	1    3350 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C8
U 1 1 5D8EF2A7
P 3650 7050
F 0 "C8" H 3765 7096 50  0000 L CNN
F 1 "0.1uF" H 3765 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 3688 6900 50  0001 C CNN
F 3 "~" H 3650 7050 50  0001 C CNN
	1    3650 7050
	1    0    0    -1  
$EndComp
$Comp
L Device:C C9
U 1 1 5D8EFB23
P 4000 7050
F 0 "C9" H 4115 7096 50  0000 L CNN
F 1 "0.1uF" H 4115 7005 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 4038 6900 50  0001 C CNN
F 3 "~" H 4000 7050 50  0001 C CNN
	1    4000 7050
	1    0    0    -1  
$EndComp
Wire Wire Line
	1600 6900 1950 6900
Connection ~ 1950 6900
Wire Wire Line
	1950 6900 2300 6900
Connection ~ 2300 6900
Wire Wire Line
	2300 6900 2650 6900
Connection ~ 2650 6900
Wire Wire Line
	2650 6900 2950 6900
Connection ~ 2950 6900
Wire Wire Line
	2950 6900 3350 6900
Connection ~ 3350 6900
Wire Wire Line
	3350 6900 3650 6900
Connection ~ 3650 6900
Wire Wire Line
	3650 6900 4000 6900
Wire Wire Line
	4000 7200 3650 7200
Connection ~ 1950 7200
Wire Wire Line
	1950 7200 1600 7200
Connection ~ 2300 7200
Wire Wire Line
	2300 7200 1950 7200
Connection ~ 2650 7200
Wire Wire Line
	2650 7200 2300 7200
Connection ~ 2950 7200
Wire Wire Line
	2950 7200 2650 7200
Connection ~ 3350 7200
Wire Wire Line
	3350 7200 2950 7200
Connection ~ 3650 7200
Wire Wire Line
	3650 7200 3350 7200
Wire Wire Line
	5250 7500 6100 7500
Connection ~ 6100 7500
Wire Wire Line
	5250 6500 6100 6500
Connection ~ 6100 6500
NoConn ~ 8800 1100
NoConn ~ 8800 1200
NoConn ~ 8800 1300
NoConn ~ 8850 1950
NoConn ~ 8850 2050
NoConn ~ 8850 2150
Connection ~ 5550 5550
Wire Wire Line
	5550 5550 7350 5550
Wire Wire Line
	7350 3950 5550 3950
Connection ~ 5550 3950
Wire Wire Line
	5550 3950 4700 3950
$Comp
L power:GND #PWR0111
U 1 1 5D947984
P 4800 5550
F 0 "#PWR0111" H 4800 5300 50  0001 C CNN
F 1 "GND" H 4805 5377 50  0000 C CNN
F 2 "" H 4800 5550 50  0001 C CNN
F 3 "" H 4800 5550 50  0001 C CNN
	1    4800 5550
	1    0    0    -1  
$EndComp
Connection ~ 4800 5550
Wire Wire Line
	4800 5550 5550 5550
$Comp
L power:VCC #PWR0112
U 1 1 5D952630
P 4700 3950
F 0 "#PWR0112" H 4700 3800 50  0001 C CNN
F 1 "VCC" H 4717 4123 50  0000 C CNN
F 2 "" H 4700 3950 50  0001 C CNN
F 3 "" H 4700 3950 50  0001 C CNN
	1    4700 3950
	1    0    0    -1  
$EndComp
Connection ~ 4700 3950
$Comp
L power:GND #PWR0113
U 1 1 5D958B61
P 10050 3050
F 0 "#PWR0113" H 10050 2800 50  0001 C CNN
F 1 "GND" H 10055 2877 50  0000 C CNN
F 2 "" H 10050 3050 50  0001 C CNN
F 3 "" H 10050 3050 50  0001 C CNN
	1    10050 3050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0114
U 1 1 5D959356
P 10050 6150
F 0 "#PWR0114" H 10050 5900 50  0001 C CNN
F 1 "GND" H 10055 5977 50  0000 C CNN
F 2 "" H 10050 6150 50  0001 C CNN
F 3 "" H 10050 6150 50  0001 C CNN
	1    10050 6150
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0115
U 1 1 5D959F32
P 10050 3950
F 0 "#PWR0115" H 10050 3800 50  0001 C CNN
F 1 "VCC" H 10067 4123 50  0000 C CNN
F 2 "" H 10050 3950 50  0001 C CNN
F 3 "" H 10050 3950 50  0001 C CNN
	1    10050 3950
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0116
U 1 1 5D95BC53
P 10050 850
F 0 "#PWR0116" H 10050 700 50  0001 C CNN
F 1 "VCC" H 10067 1023 50  0000 C CNN
F 2 "" H 10050 850 50  0001 C CNN
F 3 "" H 10050 850 50  0001 C CNN
	1    10050 850 
	1    0    0    -1  
$EndComp
NoConn ~ 6050 4550
NoConn ~ 6050 4650
NoConn ~ 950  4200
NoConn ~ 950  4300
NoConn ~ 950  4400
NoConn ~ 950  4500
NoConn ~ 950  4600
NoConn ~ 950  4700
NoConn ~ 950  3000
NoConn ~ 5750 1950
Text GLabel 5750 2950 0    50   Output ~ 0
SLIORQ
Text GLabel 5750 2850 0    50   Output ~ 0
SLMREQ
Text GLabel 5750 2750 0    50   Output ~ 0
SLWR
Text GLabel 5750 2650 0    50   Output ~ 0
SLRD
Text GLabel 5750 1650 0    50   Input ~ 0
SLINT
Text GLabel 5750 1550 0    50   Input ~ 0
SLNMI
$Comp
L power:GND #PWR0110
U 1 1 5D64BF70
P 6450 3650
F 0 "#PWR0110" H 6450 3400 50  0001 C CNN
F 1 "GND" H 6455 3477 50  0000 C CNN
F 2 "" H 6450 3650 50  0001 C CNN
F 3 "" H 6450 3650 50  0001 C CNN
	1    6450 3650
	1    0    0    -1  
$EndComp
Text GLabel 7150 3350 2    50   3State ~ 0
SD7
Text GLabel 7150 3250 2    50   3State ~ 0
SD6
Text GLabel 7150 3150 2    50   3State ~ 0
SD5
Text GLabel 7150 3050 2    50   3State ~ 0
SD4
Text GLabel 7150 2950 2    50   3State ~ 0
SD3
Text GLabel 7150 2850 2    50   3State ~ 0
SD2
Text GLabel 7150 2750 2    50   3State ~ 0
SD1
Text GLabel 7150 2650 2    50   3State ~ 0
SD0
Text GLabel 7150 2450 2    50   Output ~ 0
SA15
Text GLabel 7150 2350 2    50   Output ~ 0
SA14
Text GLabel 7150 2250 2    50   Output ~ 0
SA13
Text GLabel 7150 2150 2    50   Output ~ 0
SA12
Text GLabel 7150 2050 2    50   Output ~ 0
SA11
Text GLabel 7150 1950 2    50   Output ~ 0
SA10
Text GLabel 7150 1850 2    50   Output ~ 0
SA9
Text GLabel 7150 1750 2    50   Output ~ 0
SA8
Text GLabel 7150 1650 2    50   Output ~ 0
SA7
Text GLabel 7150 1550 2    50   Output ~ 0
SA6
Text GLabel 7150 1450 2    50   Output ~ 0
SA5
Text GLabel 7150 1350 2    50   Output ~ 0
SA4
Text GLabel 7150 1250 2    50   Output ~ 0
SA3
Text GLabel 7150 1150 2    50   Output ~ 0
SA2
Text GLabel 7150 1050 2    50   Output ~ 0
SA1
Text GLabel 7150 950  2    50   Output ~ 0
SA0
NoConn ~ 5750 2050
Text GLabel 5750 1250 0    50   Input ~ 0
CLK
Text GLabel 5750 950  0    50   Input ~ 0
SLRESET
$Comp
L CPU:Z80CPU U3
U 1 1 5D63D39B
P 6450 2150
F 0 "U3" H 6450 3831 50  0000 C CNN
F 1 "Z80CPU" H 6450 3740 50  0000 C CNN
F 2 "Package_DIP:DIP-40_W15.24mm" H 6450 2550 50  0001 C CNN
F 3 "www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080" H 6450 2550 50  0001 C CNN
	1    6450 2150
	1    0    0    -1  
$EndComp
Text GLabel 4700 2850 2    50   Output ~ 0
IOWR
Text GLabel 4700 2100 2    50   Output ~ 0
IORD
$Comp
L Device:R R1
U 1 1 5DA3FC7D
P 5050 1600
F 0 "R1" H 4900 1650 50  0000 L CNN
F 1 "10K" H 4850 1550 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 4980 1600 50  0001 C CNN
F 3 "~" H 5050 1600 50  0001 C CNN
	1    5050 1600
	1    0    0    -1  
$EndComp
$Comp
L Device:R R2
U 1 1 5DA4033F
P 5200 1600
F 0 "R2" H 5270 1646 50  0000 L CNN
F 1 "10K" H 5270 1555 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal" V 5130 1600 50  0001 C CNN
F 3 "~" H 5200 1600 50  0001 C CNN
	1    5200 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	5200 1450 5050 1450
Connection ~ 3550 1450
Wire Wire Line
	3550 1450 3550 1200
Connection ~ 5050 1450
Wire Wire Line
	5050 1450 3550 1450
Wire Wire Line
	5200 1750 5200 2150
Wire Wire Line
	5200 2150 5750 2150
Wire Wire Line
	5050 1750 5050 3250
NoConn ~ 5750 2250
$Comp
L Diode:1N4148 D1
U 1 1 5DAA30EA
P 8000 4250
F 0 "D1" H 8000 4466 50  0000 C CNN
F 1 "1N4148" H 8000 4375 50  0000 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8000 4075 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 8000 4250 50  0001 C CNN
	1    8000 4250
	1    0    0    -1  
$EndComp
Text GLabel 8150 4250 2    50   3State ~ 0
INT
NoConn ~ 950  2200
NoConn ~ 950  2300
$Comp
L power:VCC #PWR0117
U 1 1 5DB32BF8
P 9150 5450
F 0 "#PWR0117" H 9150 5300 50  0001 C CNN
F 1 "VCC" H 9167 5623 50  0000 C CNN
F 2 "" H 9150 5450 50  0001 C CNN
F 3 "" H 9150 5450 50  0001 C CNN
	1    9150 5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 5450 9150 5750
Wire Wire Line
	9150 5750 9650 5750
Wire Wire Line
	5050 3250 5750 3250
NoConn ~ 5750 3350
Wire Wire Line
	2300 5550 4000 5550
Wire Wire Line
	2300 3950 4000 3950
$Comp
L 74xx:74HCT574 U8
U 1 1 5E8BFEE5
P 4000 4750
F 0 "U8" H 4000 5731 50  0000 C CNN
F 1 "74HCT574" H 4000 5640 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm_Socket" H 4000 4750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74HCT574" H 4000 4750 50  0001 C CNN
	1    4000 4750
	1    0    0    -1  
$EndComp
Connection ~ 4000 5550
Wire Wire Line
	4000 5550 4800 5550
Connection ~ 4000 3950
Wire Wire Line
	4000 3950 4700 3950
$Comp
L 74xx:74HCT574 U9
U 1 1 5E8C1192
P 2300 4750
F 0 "U9" H 2300 5731 50  0000 C CNN
F 1 "74HCT574" H 2300 5640 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm_Socket" H 2300 4750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74HCT574" H 2300 4750 50  0001 C CNN
	1    2300 4750
	1    0    0    -1  
$EndComp
Text Notes 5750 6100 0    50   ~ 0
Prototype board errors:\nU6 was wrongly using IOWR not SLIOWR (needs a wire fix)\n74HCT573's should be 74HCT574s (swapped)\n
NoConn ~ 6050 4750
NoConn ~ 6050 4850
NoConn ~ 6050 4950
NoConn ~ 7850 4750
NoConn ~ 7850 4850
NoConn ~ 7850 4950
$EndSCHEMATC
