EESchema Schematic File Version 4
LIBS:8085-mmu-cache
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:C C2
U 1 1 5D6AB946
P 2350 9900
F 0 "C2" H 2465 9946 50  0000 L CNN
F 1 "0.1uF" H 2465 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2388 9750 50  0001 C CNN
F 3 "~" H 2350 9900 50  0001 C CNN
	1    2350 9900
	1    0    0    -1  
$EndComp
$Comp
L Device:C C3
U 1 1 5D6ABED7
P 2750 9900
F 0 "C3" H 2865 9946 50  0000 L CNN
F 1 "0.1uF" H 2865 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2788 9750 50  0001 C CNN
F 3 "~" H 2750 9900 50  0001 C CNN
	1    2750 9900
	1    0    0    -1  
$EndComp
Connection ~ 2450 10050
Wire Wire Line
	2450 10050 2750 10050
$Comp
L power:GND #PWR0111
U 1 1 5D6B1F06
P 2450 10050
F 0 "#PWR0111" H 2450 9800 50  0001 C CNN
F 1 "GND" H 2455 9877 50  0000 C CNN
F 2 "" H 2450 10050 50  0001 C CNN
F 3 "" H 2450 10050 50  0001 C CNN
	1    2450 10050
	1    0    0    -1  
$EndComp
$Comp
L power:PWR_FLAG #FLG0102
U 1 1 5D6BA8FC
P 2750 10050
F 0 "#FLG0102" H 2750 10125 50  0001 C CNN
F 1 "PWR_FLAG" H 2750 10223 50  0000 C CNN
F 2 "" H 2750 10050 50  0001 C CNN
F 3 "~" H 2750 10050 50  0001 C CNN
	1    2750 10050
	-1   0    0    1   
$EndComp
Connection ~ 2750 10050
Text GLabel 1700 10050 0    50   Input ~ 0
GND
$Comp
L Device:C C4
U 1 1 5D7BD8C2
P 3150 9900
F 0 "C4" H 3265 9946 50  0000 L CNN
F 1 "0.1uF" H 3265 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 3188 9750 50  0001 C CNN
F 3 "~" H 3150 9900 50  0001 C CNN
	1    3150 9900
	1    0    0    -1  
$EndComp
Text GLabel 1400 2050 0    50   Input ~ 0
M1
Text GLabel 1400 3150 0    50   Input ~ 0
INT
Text GLabel 1400 2550 0    50   Input ~ 0
NMI
$Comp
L Device:C C5
U 1 1 5D8A3DEB
P 3600 9900
F 0 "C5" H 3715 9946 50  0000 L CNN
F 1 "0.1uF" H 3715 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 3638 9750 50  0001 C CNN
F 3 "~" H 3600 9900 50  0001 C CNN
	1    3600 9900
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0101
U 1 1 5D5E390C
P 2650 9750
F 0 "#PWR0101" H 2650 9600 50  0001 C CNN
F 1 "VCC" H 2667 9923 50  0000 C CNN
F 2 "" H 2650 9750 50  0001 C CNN
F 3 "" H 2650 9750 50  0001 C CNN
	1    2650 9750
	1    0    0    -1  
$EndComp
Connection ~ 2650 9750
$Comp
L power:PWR_FLAG #FLG0101
U 1 1 5D5E50C8
P 3150 9750
F 0 "#FLG0101" H 3150 9825 50  0001 C CNN
F 1 "PWR_FLAG" H 3150 9923 50  0000 C CNN
F 2 "" H 3150 9750 50  0001 C CNN
F 3 "~" H 3150 9750 50  0001 C CNN
	1    3150 9750
	1    0    0    -1  
$EndComp
Connection ~ 3150 9750
Text GLabel 5550 2050 0    50   Input ~ 0
AD7
Text GLabel 5550 2150 0    50   Input ~ 0
AD6
Text GLabel 5550 2250 0    50   Input ~ 0
AD5
Text GLabel 5550 2350 0    50   Input ~ 0
AD4
Text GLabel 5550 2450 0    50   Input ~ 0
AD3
Text GLabel 5550 2550 0    50   Input ~ 0
AD2
Text GLabel 5550 2650 0    50   Input ~ 0
AD1
Text GLabel 5550 2750 0    50   Input ~ 0
AD0
Wire Wire Line
	5550 3050 5550 3350
Wire Wire Line
	5550 3350 6050 3350
Text GLabel 6550 2050 2    50   Output ~ 0
A7
Text GLabel 6550 2150 2    50   Output ~ 0
A6
Text GLabel 6550 2250 2    50   Output ~ 0
A5
Text GLabel 6550 2350 2    50   Output ~ 0
A4
Text GLabel 6550 2450 2    50   Output ~ 0
A3
Text GLabel 6550 2550 2    50   Output ~ 0
A2
Text GLabel 6550 2650 2    50   Output ~ 0
A1
Text GLabel 6550 2750 2    50   Output ~ 0
A0
$Comp
L 74xx:74LS573 U2
U 1 1 5D8FCAE7
P 6050 2550
F 0 "U2" H 6300 3450 50  0000 C CNN
F 1 "74HCT573" H 6300 3350 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 6050 2550 50  0001 C CNN
F 3 "74xx/74hc573.pdf" H 6050 2550 50  0001 C CNN
	1    6050 2550
	1    0    0    -1  
$EndComp
Wire Wire Line
	7350 8900 7700 8900
Wire Wire Line
	8000 9900 7700 9900
Text GLabel 8850 3850 2    50   Input ~ 0
NMI
Text GLabel 8850 3050 2    50   Output ~ 0
VCC
Text GLabel 8850 2950 2    50   Output ~ 0
GND
$Comp
L Connector_Generic:Conn_02x40_Odd_Even J1
U 1 1 5D88BCB1
P 8550 3250
F 0 "J1" H 8600 5367 50  0000 C CNN
F 1 "Conn_02x40_Odd_Even" H 8600 5276 50  0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_2x40_P2.54mm_Vertical" H 8550 3250 50  0001 C CNN
F 3 "~" H 8550 3250 50  0001 C CNN
	1    8550 3250
	1    0    0    -1  
$EndComp
Text GLabel 8350 1350 0    50   Input ~ 0
A15
Text GLabel 8350 1450 0    50   Input ~ 0
A14
Text GLabel 8350 1550 0    50   Input ~ 0
A13
Text GLabel 8350 1650 0    50   Input ~ 0
A12
Text GLabel 8350 1750 0    50   Input ~ 0
A11
Text GLabel 8350 1850 0    50   Input ~ 0
A10
Text GLabel 8350 1950 0    50   Input ~ 0
A9
Text GLabel 8350 2050 0    50   Input ~ 0
A8
Text GLabel 8350 2150 0    50   Input ~ 0
A7
Text GLabel 8350 2250 0    50   Input ~ 0
A6
Text GLabel 8350 2350 0    50   Input ~ 0
A5
Text GLabel 8350 2450 0    50   Input ~ 0
A4
Text GLabel 8350 2550 0    50   Input ~ 0
A3
Text GLabel 8350 2650 0    50   Input ~ 0
A2
Text GLabel 8350 2750 0    50   Input ~ 0
A1
Text GLabel 8350 2850 0    50   Input ~ 0
A0
Text GLabel 8350 2950 0    50   Output ~ 0
GND
Text GLabel 8350 3050 0    50   Output ~ 0
VCC
Text GLabel 8350 3250 0    50   3State ~ 0
RESET
Text GLabel 8350 3450 0    50   Output ~ 0
INT
Text GLabel 8350 3550 0    50   Input ~ 0
MREQ
Text GLabel 8350 3650 0    50   Input ~ 0
WR
Text GLabel 8350 3750 0    50   Input ~ 0
RD
Text GLabel 8350 3850 0    50   Input ~ 0
IORQ
Text GLabel 8350 3950 0    50   3State ~ 0
AD0
Text GLabel 8350 4050 0    50   3State ~ 0
AD1
Text GLabel 8350 4150 0    50   3State ~ 0
AD2
Text GLabel 8350 4250 0    50   3State ~ 0
AD3
Text GLabel 8350 4350 0    50   3State ~ 0
AD4
Text GLabel 8350 4450 0    50   3State ~ 0
AD5
Text GLabel 8350 4550 0    50   3State ~ 0
AD6
Text GLabel 8350 4650 0    50   3State ~ 0
AD7
NoConn ~ 8350 4750
NoConn ~ 8350 4850
NoConn ~ 8350 4950
NoConn ~ 8350 5050
NoConn ~ 8350 5150
NoConn ~ 8350 5250
NoConn ~ 8850 1350
NoConn ~ 8850 1450
NoConn ~ 8850 1550
NoConn ~ 8850 1650
NoConn ~ 8850 1750
NoConn ~ 8850 1850
NoConn ~ 8850 1950
NoConn ~ 8850 2050
NoConn ~ 8850 3150
NoConn ~ 8850 3250
NoConn ~ 8850 3350
NoConn ~ 8850 3450
NoConn ~ 8850 3550
NoConn ~ 8850 3650
NoConn ~ 8850 3750
NoConn ~ 8850 3950
NoConn ~ 8850 4050
NoConn ~ 8850 4150
NoConn ~ 8850 4250
NoConn ~ 8850 4350
NoConn ~ 8850 4450
NoConn ~ 8850 4550
NoConn ~ 8850 4650
NoConn ~ 8850 4750
NoConn ~ 8850 4850
NoConn ~ 8850 4950
NoConn ~ 8850 5050
NoConn ~ 8850 5150
NoConn ~ 8850 5250
Text GLabel 8350 3150 0    50   Input ~ 0
M1
Wire Wire Line
	2650 9750 2750 9750
Wire Wire Line
	3150 9750 3600 9750
Wire Wire Line
	2750 10050 3150 10050
$Comp
L power:GND #PWR0103
U 1 1 5D67F178
P 7700 9900
F 0 "#PWR0103" H 7700 9650 50  0001 C CNN
F 1 "GND" H 7705 9727 50  0000 C CNN
F 2 "" H 7700 9900 50  0001 C CNN
F 3 "" H 7700 9900 50  0001 C CNN
	1    7700 9900
	1    0    0    -1  
$EndComp
Connection ~ 7700 9900
Wire Wire Line
	7700 9900 7350 9900
$Comp
L power:VCC #PWR0115
U 1 1 5D6999BD
P 6050 1750
F 0 "#PWR0115" H 6050 1600 50  0001 C CNN
F 1 "VCC" H 6067 1923 50  0000 C CNN
F 2 "" H 6050 1750 50  0001 C CNN
F 3 "" H 6050 1750 50  0001 C CNN
	1    6050 1750
	1    0    0    -1  
$EndComp
Text GLabel 1700 9750 0    50   Input ~ 0
VCC
$Comp
L power:VCC #PWR0119
U 1 1 5D6BAC8C
P 7700 8900
F 0 "#PWR0119" H 7700 8750 50  0001 C CNN
F 1 "VCC" H 7717 9073 50  0000 C CNN
F 2 "" H 7700 8900 50  0001 C CNN
F 3 "" H 7700 8900 50  0001 C CNN
	1    7700 8900
	1    0    0    -1  
$EndComp
Connection ~ 7700 8900
Wire Wire Line
	7700 8900 8000 8900
Connection ~ 2350 9750
Wire Wire Line
	2350 9750 2650 9750
Connection ~ 2350 10050
Wire Wire Line
	2350 10050 2450 10050
Connection ~ 2750 9750
Wire Wire Line
	2750 9750 3150 9750
Connection ~ 3150 10050
Wire Wire Line
	3150 10050 3600 10050
Connection ~ 3600 9750
Connection ~ 3600 10050
$Comp
L power:GND #PWR0121
U 1 1 5D706F27
P 6050 3350
F 0 "#PWR0121" H 6050 3100 50  0001 C CNN
F 1 "GND" H 6055 3177 50  0000 C CNN
F 2 "" H 6050 3350 50  0001 C CNN
F 3 "" H 6050 3350 50  0001 C CNN
	1    6050 3350
	1    0    0    -1  
$EndComp
Connection ~ 6050 3350
$Comp
L Alan:8085 U1
U 1 1 5D5C8495
P 4250 2650
F 0 "U1" H 4550 3650 50  0000 C CNN
F 1 "8085" H 4550 3550 50  0000 C CNN
F 2 "Package_DIP:DIP-40_W15.24mm" H 4350 2650 50  0001 C CNN
F 3 "" H 4350 2650 50  0001 C CNN
	1    4250 2650
	1    0    0    -1  
$EndComp
Text GLabel 4700 3850 2    50   Output ~ 0
A8
Text GLabel 4700 3750 2    50   Output ~ 0
A9
Text GLabel 4700 3650 2    50   Output ~ 0
A10
Text GLabel 4700 3550 2    50   Output ~ 0
A11
Text GLabel 4700 3450 2    50   Output ~ 0
A12
Text GLabel 4700 3350 2    50   Output ~ 0
A13
Text GLabel 4700 3250 2    50   Output ~ 0
A14
Text GLabel 4700 3150 2    50   Output ~ 0
A15
Text GLabel 4700 2250 2    50   Output ~ 0
CLOCK
Wire Wire Line
	4700 2950 5550 2950
Wire Wire Line
	2600 2550 3800 2550
Wire Wire Line
	2950 3150 2950 2750
Wire Wire Line
	2950 2750 3800 2750
Wire Wire Line
	2600 3150 2950 3150
Wire Wire Line
	4700 2550 5100 2550
Wire Wire Line
	5100 2550 5100 1250
Wire Wire Line
	5100 1250 5700 1250
Text GLabel 6300 1250 2    50   Output ~ 0
IORQ
Text GLabel 4700 2750 2    50   Output ~ 0
RD
Text GLabel 4700 2850 2    50   Output ~ 0
WR
NoConn ~ 4700 2650
NoConn ~ 4700 3050
NoConn ~ 4700 2150
NoConn ~ 3800 2250
NoConn ~ 3800 3050
Text GLabel 3800 3150 0    50   3State ~ 0
AD0
Text GLabel 3800 3250 0    50   3State ~ 0
AD1
Text GLabel 3800 3350 0    50   3State ~ 0
AD2
Text GLabel 3800 3450 0    50   3State ~ 0
AD3
Text GLabel 3800 3550 0    50   3State ~ 0
AD4
Text GLabel 3800 3650 0    50   3State ~ 0
AD5
Text GLabel 3800 3750 0    50   3State ~ 0
AD6
Text GLabel 3800 3850 0    50   3State ~ 0
AD7
$Comp
L power:GND #PWR0102
U 1 1 5D696A94
P 4250 4050
F 0 "#PWR0102" H 4250 3800 50  0001 C CNN
F 1 "GND" H 4255 3877 50  0000 C CNN
F 2 "" H 4250 4050 50  0001 C CNN
F 3 "" H 4250 4050 50  0001 C CNN
	1    4250 4050
	1    0    0    -1  
$EndComp
Connection ~ 4250 4050
Wire Wire Line
	4700 2050 4950 2050
Wire Wire Line
	4950 2050 4950 4050
Wire Wire Line
	4950 4050 4250 4050
$Comp
L power:VCC #PWR0104
U 1 1 5D6A65DB
P 4250 1850
F 0 "#PWR0104" H 4250 1700 50  0001 C CNN
F 1 "VCC" H 4267 2023 50  0000 C CNN
F 2 "" H 4250 1850 50  0001 C CNN
F 3 "" H 4250 1850 50  0001 C CNN
	1    4250 1850
	1    0    0    -1  
$EndComp
Text GLabel 4700 2450 2    50   Input ~ 0
VCC
Text GLabel 4700 2350 2    50   Input ~ 0
RESET
$Comp
L Device:Crystal Y1
U 1 1 5D6A7A5C
P 3200 2100
F 0 "Y1" V 3154 2231 50  0000 L CNN
F 1 "Crystal" V 3245 2231 50  0000 L CNN
F 2 "Crystal:Crystal_HC49-U_Vertical" H 3200 2100 50  0001 C CNN
F 3 "~" H 3200 2100 50  0001 C CNN
	1    3200 2100
	0    1    1    0   
$EndComp
$Comp
L Device:C C1
U 1 1 5D6A843D
P 2800 1550
F 0 "C1" H 2915 1596 50  0000 L CNN
F 1 "20pF" H 2915 1505 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 2838 1400 50  0001 C CNN
F 3 "~" H 2800 1550 50  0001 C CNN
	1    2800 1550
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0105
U 1 1 5D6A8C70
P 2800 1400
F 0 "#PWR0105" H 2800 1250 50  0001 C CNN
F 1 "VCC" H 2817 1573 50  0000 C CNN
F 2 "" H 2800 1400 50  0001 C CNN
F 3 "" H 2800 1400 50  0001 C CNN
	1    2800 1400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3800 2050 3800 1950
Wire Wire Line
	3800 1950 3200 1950
Wire Wire Line
	3200 2250 3650 2250
Wire Wire Line
	3650 2250 3650 2150
Wire Wire Line
	3650 2150 3800 2150
Wire Wire Line
	3200 2250 2800 2250
Wire Wire Line
	2800 2250 2800 1700
Connection ~ 3200 2250
Wire Wire Line
	3300 4050 4250 4050
Wire Wire Line
	3300 2950 3800 2950
Wire Wire Line
	3300 2950 3300 4050
Text GLabel 3800 2350 0    50   Output ~ 0
SOD
Text GLabel 3800 2450 0    50   Input ~ 0
SID
Wire Wire Line
	1700 9750 2350 9750
Wire Wire Line
	1700 10050 2350 10050
$Comp
L 74xx:74LS14 U4
U 1 1 5D6D2A10
P 2300 2550
F 0 "U4" H 2300 2867 50  0000 C CNN
F 1 "74HCT14" H 2300 2776 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2300 2550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2300 2550 50  0001 C CNN
	1    2300 2550
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U4
U 2 1 5D6D38A6
P 2300 3150
F 0 "U4" H 2300 3467 50  0000 C CNN
F 1 "74HCT14" H 2300 3376 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2300 3150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2300 3150 50  0001 C CNN
	2    2300 3150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U4
U 3 1 5D6D97FC
P 6000 1250
F 0 "U4" H 6000 1567 50  0000 C CNN
F 1 "74HCT14" H 6000 1476 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 6000 1250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 6000 1250 50  0001 C CNN
	3    6000 1250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U4
U 4 1 5D6DB61B
P 2300 3750
F 0 "U4" H 2300 4067 50  0000 C CNN
F 1 "74HCT14" H 2300 3976 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2300 3750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2300 3750 50  0001 C CNN
	4    2300 3750
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS14 U4
U 5 1 5D6DD63F
P 2300 4350
F 0 "U4" H 2300 4667 50  0000 C CNN
F 1 "74HCT14" H 2300 4576 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2300 4350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 2300 4350 50  0001 C CNN
	5    2300 4350
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 2550 1950 2550
Text GLabel 1400 3750 0    50   Input ~ 0
INT2
Text GLabel 1400 4350 0    50   Input ~ 0
INT3
Wire Wire Line
	2600 3750 3000 3750
Wire Wire Line
	3000 3750 3000 2850
Wire Wire Line
	3000 2850 3800 2850
Wire Wire Line
	2600 4350 3200 4350
Wire Wire Line
	3200 4350 3200 2650
Wire Wire Line
	3200 2650 3800 2650
Text GLabel 8850 2750 2    50   Input ~ 0
A17
Text GLabel 8850 2550 2    50   Input ~ 0
A19
Text GLabel 8850 2650 2    50   Input ~ 0
A18
Text GLabel 8850 2850 2    50   Input ~ 0
A16
$Comp
L 74xx:74LS14 U4
U 7 1 5D70736F
P 7350 9400
F 0 "U4" H 7580 9446 50  0000 L CNN
F 1 "74HCT14" H 7580 9355 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 7350 9400 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 7350 9400 50  0001 C CNN
	7    7350 9400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3600 9750 4000 9750
Wire Wire Line
	3600 10050 4000 10050
Text GLabel 8350 3350 0    50   Input ~ 0
CLOCK
Text GLabel 6200 800  2    50   Output ~ 0
MREQ
Wire Wire Line
	6200 800  5100 800 
Wire Wire Line
	5100 800  5100 1250
Connection ~ 5100 1250
Connection ~ 2800 1400
NoConn ~ 8850 2150
NoConn ~ 8850 2250
NoConn ~ 8850 2350
NoConn ~ 8850 2450
$Comp
L 74xx:74LS273 U3
U 1 1 5D5E6146
P 3650 6200
F 0 "U3" H 3950 7200 50  0000 C CNN
F 1 "74HCT273" H 3950 7100 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 3650 6200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS273" H 3650 6200 50  0001 C CNN
	1    3650 6200
	1    0    0    -1  
$EndComp
Text GLabel 3150 6700 0    50   Input ~ 0
RESET
$Comp
L 74xx:74LS157 U5
U 1 1 5D5E8E70
P 5500 6150
F 0 "U5" H 5750 7200 50  0000 C CNN
F 1 "74HCT157" H 5750 7100 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 5500 6150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS157" H 5500 6150 50  0001 C CNN
	1    5500 6150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4150 5700 4350 5700
Wire Wire Line
	4350 5700 4350 5550
Wire Wire Line
	4350 5550 5000 5550
Wire Wire Line
	4450 5800 4450 5650
Wire Wire Line
	4450 5650 5000 5650
Wire Wire Line
	4150 5800 4450 5800
Wire Wire Line
	4550 5900 4550 5850
Wire Wire Line
	4550 5850 5000 5850
Wire Wire Line
	4150 5900 4550 5900
Wire Wire Line
	4150 6000 5000 6000
Wire Wire Line
	5000 6000 5000 5950
Wire Wire Line
	4150 6100 5000 6100
Wire Wire Line
	5000 6100 5000 6150
Wire Wire Line
	4150 6200 4700 6200
Wire Wire Line
	4700 6200 4700 6250
Wire Wire Line
	4700 6250 5000 6250
Wire Wire Line
	4150 6300 5000 6300
Wire Wire Line
	5000 6300 5000 6450
Wire Wire Line
	4150 6400 4850 6400
Wire Wire Line
	4850 6400 4850 6550
Wire Wire Line
	4850 6550 5000 6550
Wire Wire Line
	5000 6850 5000 7150
Wire Wire Line
	5000 7150 5500 7150
Text GLabel 6000 5550 2    50   Output ~ 0
A19
Text GLabel 6000 5850 2    50   Output ~ 0
A18
Text GLabel 6000 6150 2    50   Output ~ 0
A17
Text GLabel 6000 6450 2    50   Output ~ 0
A16
Wire Wire Line
	4550 6750 5000 6750
$Comp
L power:GND #PWR0107
U 1 1 5D63671E
P 3650 7000
F 0 "#PWR0107" H 3650 6750 50  0001 C CNN
F 1 "GND" H 3655 6827 50  0000 C CNN
F 2 "" H 3650 7000 50  0001 C CNN
F 3 "" H 3650 7000 50  0001 C CNN
	1    3650 7000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0108
U 1 1 5D6370C2
P 5500 7150
F 0 "#PWR0108" H 5500 6900 50  0001 C CNN
F 1 "GND" H 5505 6977 50  0000 C CNN
F 2 "" H 5500 7150 50  0001 C CNN
F 3 "" H 5500 7150 50  0001 C CNN
	1    5500 7150
	1    0    0    -1  
$EndComp
Connection ~ 5500 7150
$Comp
L power:VCC #PWR0109
U 1 1 5D638BAC
P 5500 5250
F 0 "#PWR0109" H 5500 5100 50  0001 C CNN
F 1 "VCC" H 5517 5423 50  0000 C CNN
F 2 "" H 5500 5250 50  0001 C CNN
F 3 "" H 5500 5250 50  0001 C CNN
	1    5500 5250
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0110
U 1 1 5D63A6D0
P 3650 5400
F 0 "#PWR0110" H 3650 5250 50  0001 C CNN
F 1 "VCC" H 3667 5573 50  0000 C CNN
F 2 "" H 3650 5400 50  0001 C CNN
F 3 "" H 3650 5400 50  0001 C CNN
	1    3650 5400
	1    0    0    -1  
$EndComp
Text GLabel 3150 5700 0    50   Input ~ 0
AD0
Text GLabel 3150 5800 0    50   Input ~ 0
AD1
Text GLabel 3150 5900 0    50   Input ~ 0
AD2
Text GLabel 3150 6000 0    50   Input ~ 0
AD3
Text GLabel 3150 6100 0    50   Input ~ 0
AD4
Text GLabel 3150 6200 0    50   Input ~ 0
AD5
Text GLabel 3150 6300 0    50   Input ~ 0
AD6
Text GLabel 3150 6400 0    50   Input ~ 0
AD7
$Comp
L 74xx:74LS10 U6
U 1 1 5D64A08D
P 4200 7600
F 0 "U6" H 4200 7925 50  0000 C CNN
F 1 "74HCT10" H 4200 7834 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4200 7600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS10" H 4200 7600 50  0001 C CNN
	1    4200 7600
	1    0    0    -1  
$EndComp
Wire Wire Line
	4550 6750 4550 7600
Wire Wire Line
	4550 7600 4500 7600
Text GLabel 3900 7500 0    50   Input ~ 0
A13
Text GLabel 3900 7600 0    50   Input ~ 0
A14
Text GLabel 3900 7700 0    50   Input ~ 0
A15
$Comp
L 74xx:74LS10 U6
U 2 1 5D65EACB
P 2550 6600
F 0 "U6" H 2550 6925 50  0000 C CNN
F 1 "74HCT10" H 2550 6834 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2550 6600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS10" H 2550 6600 50  0001 C CNN
	2    2550 6600
	1    0    0    -1  
$EndComp
Wire Wire Line
	2850 6600 3150 6600
$Comp
L 74xx:74LS10 U6
U 3 1 5D666299
P 1650 6600
F 0 "U6" H 1650 6925 50  0000 C CNN
F 1 "74HCT10" H 1650 6834 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 1650 6600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS10" H 1650 6600 50  0001 C CNN
	3    1650 6600
	1    0    0    -1  
$EndComp
Wire Wire Line
	1950 6600 2250 6600
Wire Wire Line
	1350 6500 1350 6600
Connection ~ 1350 6600
Wire Wire Line
	1350 6600 1350 6700
$Comp
L 74xx:74LS10 U6
U 4 1 5D67A1EC
P 8000 9400
F 0 "U6" H 8230 9446 50  0000 L CNN
F 1 "74HCT10" H 8230 9355 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8000 9400 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS10" H 8000 9400 50  0001 C CNN
	4    8000 9400
	1    0    0    -1  
$EndComp
Wire Wire Line
	1550 1400 2800 1400
$Comp
L Device:R_Network05 RN1
U 1 1 5D6B3E28
P 1750 1600
F 0 "RN1" H 2038 1646 50  0000 L CNN
F 1 "R_Network05" H 2038 1555 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP6" V 2125 1600 50  0001 C CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 1750 1600 50  0001 C CNN
	1    1750 1600
	1    0    0    -1  
$EndComp
Wire Wire Line
	1400 3750 1750 3750
Wire Wire Line
	1400 4350 1650 4350
Wire Wire Line
	1950 1800 1950 2550
Connection ~ 1950 2550
Wire Wire Line
	1950 2550 2000 2550
Wire Wire Line
	1400 3150 1850 3150
Wire Wire Line
	1850 1800 1850 3150
Connection ~ 1850 3150
Wire Wire Line
	1850 3150 2000 3150
Wire Wire Line
	1750 1800 1750 3750
Connection ~ 1750 3750
Wire Wire Line
	1750 3750 2000 3750
Wire Wire Line
	1650 1800 1650 4350
Connection ~ 1650 4350
Wire Wire Line
	1650 4350 2000 4350
Wire Wire Line
	1400 2050 1550 2050
Wire Wire Line
	1550 2050 1550 1800
$Comp
L Device:C C6
U 1 1 5D6E6B9B
P 4000 9900
F 0 "C6" H 4115 9946 50  0000 L CNN
F 1 "0.1uF" H 4115 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 4038 9750 50  0001 C CNN
F 3 "~" H 4000 9900 50  0001 C CNN
	1    4000 9900
	1    0    0    -1  
$EndComp
Connection ~ 4000 9750
Wire Wire Line
	4000 9750 4400 9750
Connection ~ 4000 10050
Wire Wire Line
	4000 10050 4400 10050
$Comp
L Device:C C7
U 1 1 5D6E7081
P 4400 9900
F 0 "C7" H 4515 9946 50  0000 L CNN
F 1 "0.1uF" H 4515 9855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm" H 4438 9750 50  0001 C CNN
F 3 "~" H 4400 9900 50  0001 C CNN
	1    4400 9900
	1    0    0    -1  
$EndComp
Connection ~ 4400 9750
Wire Wire Line
	4400 9750 4750 9750
Connection ~ 4400 10050
Wire Wire Line
	4400 10050 4750 10050
$Comp
L 74xx:74LS688 U7
U 1 1 5DB4B4A2
P 7800 7100
F 0 "U7" H 8344 7146 50  0000 L CNN
F 1 "74HCT688" H 8344 7055 50  0000 L CNN
F 2 "Package_DIP:DIP-20_W7.62mm_Socket" H 7800 7100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS688" H 7800 7100 50  0001 C CNN
	1    7800 7100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0112
U 1 1 5DB4CE80
P 7800 8300
F 0 "#PWR0112" H 7800 8050 50  0001 C CNN
F 1 "GND" H 7805 8127 50  0000 C CNN
F 2 "" H 7800 8300 50  0001 C CNN
F 3 "" H 7800 8300 50  0001 C CNN
	1    7800 8300
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0113
U 1 1 5DB4DA65
P 7800 5900
F 0 "#PWR0113" H 7800 5750 50  0001 C CNN
F 1 "VCC" H 7817 6073 50  0000 C CNN
F 2 "" H 7800 5900 50  0001 C CNN
F 3 "" H 7800 5900 50  0001 C CNN
	1    7800 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	7300 6900 7300 6800
Wire Wire Line
	7300 5900 7800 5900
Connection ~ 7300 6200
Wire Wire Line
	7300 6200 7300 5900
Connection ~ 7300 6300
Wire Wire Line
	7300 6300 7300 6200
Connection ~ 7300 6400
Wire Wire Line
	7300 6400 7300 6300
Connection ~ 7300 6500
Wire Wire Line
	7300 6500 7300 6400
Connection ~ 7300 6600
Wire Wire Line
	7300 6600 7300 6500
Connection ~ 7300 6700
Wire Wire Line
	7300 6700 7300 6600
Connection ~ 7300 6800
Wire Wire Line
	7300 6800 7300 6700
Connection ~ 7800 5900
Text GLabel 7300 7100 0    50   Input ~ 0
A0
Text GLabel 7300 7200 0    50   Input ~ 0
A1
Text GLabel 7300 7300 0    50   Input ~ 0
A2
Text GLabel 7300 7400 0    50   Input ~ 0
A3
Text GLabel 7300 7500 0    50   Input ~ 0
A4
Text GLabel 7300 7600 0    50   Input ~ 0
A5
Text GLabel 7300 7700 0    50   Input ~ 0
A6
Text GLabel 7300 7800 0    50   Input ~ 0
A7
Text GLabel 7300 8000 0    50   Input ~ 0
WR
Text GLabel 8300 6200 2    50   Output ~ 0
MMUSEL
Text GLabel 1350 6600 0    50   Input ~ 0
MMUSEL
Wire Wire Line
	2250 6700 2250 6600
Connection ~ 2250 6600
$Comp
L Connector_Generic:Conn_01x03 J2
U 1 1 5DB6A09C
P 3500 900
F 0 "J2" V 3464 712 50  0000 R CNN
F 1 "Conn_01x03" V 3373 712 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Horizontal" H 3500 900 50  0001 C CNN
F 3 "~" H 3500 900 50  0001 C CNN
	1    3500 900 
	0    -1   -1   0   
$EndComp
Text GLabel 3400 1100 3    50   Input ~ 0
SOD
Text GLabel 3500 1100 3    50   Output ~ 0
SID
Text GLabel 3600 1100 3    50   Input ~ 0
GND
$Comp
L 74xx:74LS14 U4
U 6 1 5D70211F
P 1650 5950
F 0 "U4" H 1650 6267 50  0000 C CNN
F 1 "74HCT14" H 1650 6176 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 1650 5950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 1650 5950 50  0001 C CNN
	6    1650 5950
	1    0    0    -1  
$EndComp
Text GLabel 1350 5950 0    50   Input ~ 0
IORQ
Wire Wire Line
	1950 5950 1950 6500
Wire Wire Line
	1950 6500 2250 6500
$EndSCHEMATC
