CGA_1_6.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 2 7
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L power:GND #PWR0105
U 1 1 6046542A
P 12200 3050
F 0 "#PWR0105" H 12200 2800 50  0001 C CNN
F 1 "GND" H 12205 2877 50  0000 C CNN
F 2 "" H 12200 3050 50  0001 C CNN
F 3 "" H 12200 3050 50  0001 C CNN
	1    12200 3050
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0106
U 1 1 604657BC
P 12200 1500
F 0 "#PWR0106" H 12200 1350 50  0001 C CNN
F 1 "VCC" H 12215 1673 50  0000 C CNN
F 2 "" H 12200 1500 50  0001 C CNN
F 3 "" H 12200 1500 50  0001 C CNN
	1    12200 1500
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U57
U 1 1 60464055
P 12350 2700
AR Path="/60464055" Ref="U57"  Part="1" 
AR Path="/60463BAE/60464055" Ref="U57"  Part="1" 
F 0 "U57" H 11900 3800 50  0000 L CNN
F 1 "2118" H 12300 3800 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 12350 2650 50  0001 C CNN
F 3 "" H 12350 2700 50  0001 C CNN
	1    12350 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	12650 1800 12750 1800
Wire Wire Line
	12750 1900 12650 1900
$Comp
L power:GND #PWR0107
U 1 1 60467734
P 12200 5100
F 0 "#PWR0107" H 12200 4850 50  0001 C CNN
F 1 "GND" H 12205 4927 50  0000 C CNN
F 2 "" H 12200 5100 50  0001 C CNN
F 3 "" H 12200 5100 50  0001 C CNN
	1    12200 5100
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0108
U 1 1 6046778A
P 12200 3550
F 0 "#PWR0108" H 12200 3400 50  0001 C CNN
F 1 "VCC" H 12215 3723 50  0000 C CNN
F 2 "" H 12200 3550 50  0001 C CNN
F 3 "" H 12200 3550 50  0001 C CNN
	1    12200 3550
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U56
U 1 1 60467794
P 12350 4750
AR Path="/60467794" Ref="U56"  Part="1" 
AR Path="/60463BAE/60467794" Ref="U56"  Part="1" 
F 0 "U56" H 11900 5850 50  0000 L CNN
F 1 "2118" H 12300 5850 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 12350 4700 50  0001 C CNN
F 3 "" H 12350 4750 50  0001 C CNN
	1    12350 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	12650 3850 12750 3850
Wire Wire Line
	12750 3950 12650 3950
$Comp
L power:GND #PWR0109
U 1 1 604699D6
P 12200 7150
F 0 "#PWR0109" H 12200 6900 50  0001 C CNN
F 1 "GND" H 12205 6977 50  0000 C CNN
F 2 "" H 12200 7150 50  0001 C CNN
F 3 "" H 12200 7150 50  0001 C CNN
	1    12200 7150
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0110
U 1 1 60469A64
P 12200 5600
F 0 "#PWR0110" H 12200 5450 50  0001 C CNN
F 1 "VCC" H 12215 5773 50  0000 C CNN
F 2 "" H 12200 5600 50  0001 C CNN
F 3 "" H 12200 5600 50  0001 C CNN
	1    12200 5600
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U55
U 1 1 60469A6E
P 12350 6800
AR Path="/60469A6E" Ref="U55"  Part="1" 
AR Path="/60463BAE/60469A6E" Ref="U55"  Part="1" 
F 0 "U55" H 11900 7900 50  0000 L CNN
F 1 "2118" H 12300 7900 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 12350 6750 50  0001 C CNN
F 3 "" H 12350 6800 50  0001 C CNN
	1    12350 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	12650 5900 12750 5900
Wire Wire Line
	12750 6000 12650 6000
$Comp
L power:VCC #PWR0112
U 1 1 604730CF
P 12200 7750
F 0 "#PWR0112" H 12200 7600 50  0001 C CNN
F 1 "VCC" H 12215 7923 50  0000 C CNN
F 2 "" H 12200 7750 50  0001 C CNN
F 3 "" H 12200 7750 50  0001 C CNN
	1    12200 7750
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U54
U 1 1 604730D9
P 12350 8950
AR Path="/604730D9" Ref="U54"  Part="1" 
AR Path="/60463BAE/604730D9" Ref="U54"  Part="1" 
F 0 "U54" H 11900 10050 50  0000 L CNN
F 1 "2118" H 12300 10050 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 12350 8900 50  0001 C CNN
F 3 "" H 12350 8950 50  0001 C CNN
	1    12350 8950
	1    0    0    -1  
$EndComp
Wire Wire Line
	12650 8050 12750 8050
Wire Wire Line
	12750 8150 12650 8150
$Comp
L power:GND #PWR0113
U 1 1 6047C460
P 14700 3050
F 0 "#PWR0113" H 14700 2800 50  0001 C CNN
F 1 "GND" H 14705 2877 50  0000 C CNN
F 2 "" H 14700 3050 50  0001 C CNN
F 3 "" H 14700 3050 50  0001 C CNN
	1    14700 3050
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0114
U 1 1 6047C582
P 14700 1500
F 0 "#PWR0114" H 14700 1350 50  0001 C CNN
F 1 "VCC" H 14715 1673 50  0000 C CNN
F 2 "" H 14700 1500 50  0001 C CNN
F 3 "" H 14700 1500 50  0001 C CNN
	1    14700 1500
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U53
U 1 1 6047C58C
P 14850 2700
AR Path="/6047C58C" Ref="U53"  Part="1" 
AR Path="/60463BAE/6047C58C" Ref="U53"  Part="1" 
F 0 "U53" H 14400 3800 50  0000 L CNN
F 1 "2118" H 14800 3800 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 14850 2650 50  0001 C CNN
F 3 "" H 14850 2700 50  0001 C CNN
	1    14850 2700
	1    0    0    -1  
$EndComp
Wire Wire Line
	15150 1800 15250 1800
Wire Wire Line
	15250 1900 15150 1900
$Comp
L power:GND #PWR0115
U 1 1 6047C599
P 14700 5100
F 0 "#PWR0115" H 14700 4850 50  0001 C CNN
F 1 "GND" H 14705 4927 50  0000 C CNN
F 2 "" H 14700 5100 50  0001 C CNN
F 3 "" H 14700 5100 50  0001 C CNN
	1    14700 5100
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0116
U 1 1 6047C5A3
P 14700 3550
F 0 "#PWR0116" H 14700 3400 50  0001 C CNN
F 1 "VCC" H 14715 3723 50  0000 C CNN
F 2 "" H 14700 3550 50  0001 C CNN
F 3 "" H 14700 3550 50  0001 C CNN
	1    14700 3550
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U52
U 1 1 6047C5AD
P 14850 4750
AR Path="/6047C5AD" Ref="U52"  Part="1" 
AR Path="/60463BAE/6047C5AD" Ref="U52"  Part="1" 
F 0 "U52" H 14400 5850 50  0000 L CNN
F 1 "2118" H 14800 5850 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 14850 4700 50  0001 C CNN
F 3 "" H 14850 4750 50  0001 C CNN
	1    14850 4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	15150 3850 15250 3850
Wire Wire Line
	15250 3950 15150 3950
$Comp
L power:GND #PWR0117
U 1 1 6047C5BA
P 14700 7150
F 0 "#PWR0117" H 14700 6900 50  0001 C CNN
F 1 "GND" H 14705 6977 50  0000 C CNN
F 2 "" H 14700 7150 50  0001 C CNN
F 3 "" H 14700 7150 50  0001 C CNN
	1    14700 7150
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0118
U 1 1 6047C5C4
P 14700 5600
F 0 "#PWR0118" H 14700 5450 50  0001 C CNN
F 1 "VCC" H 14715 5773 50  0000 C CNN
F 2 "" H 14700 5600 50  0001 C CNN
F 3 "" H 14700 5600 50  0001 C CNN
	1    14700 5600
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U51
U 1 1 6047C5CE
P 14850 6800
AR Path="/6047C5CE" Ref="U51"  Part="1" 
AR Path="/60463BAE/6047C5CE" Ref="U51"  Part="1" 
F 0 "U51" H 14400 7900 50  0000 L CNN
F 1 "2118" H 14800 7900 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 14850 6750 50  0001 C CNN
F 3 "" H 14850 6800 50  0001 C CNN
	1    14850 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	15150 5900 15250 5900
Wire Wire Line
	15250 6000 15150 6000
$Comp
L power:GND #PWR0119
U 1 1 6047C5DB
P 14700 9300
F 0 "#PWR0119" H 14700 9050 50  0001 C CNN
F 1 "GND" H 14705 9127 50  0000 C CNN
F 2 "" H 14700 9300 50  0001 C CNN
F 3 "" H 14700 9300 50  0001 C CNN
	1    14700 9300
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0120
U 1 1 6047C5E5
P 14700 7750
F 0 "#PWR0120" H 14700 7600 50  0001 C CNN
F 1 "VCC" H 14715 7923 50  0000 C CNN
F 2 "" H 14700 7750 50  0001 C CNN
F 3 "" H 14700 7750 50  0001 C CNN
	1    14700 7750
	1    0    0    -1  
$EndComp
$Comp
L ISA_CGA:2118 U50
U 1 1 6047C5EF
P 14850 8950
AR Path="/6047C5EF" Ref="U50"  Part="1" 
AR Path="/60463BAE/6047C5EF" Ref="U50"  Part="1" 
F 0 "U50" H 14400 10050 50  0000 L CNN
F 1 "2118" H 14800 10050 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm" H 14850 8900 50  0001 C CNN
F 3 "" H 14850 8950 50  0001 C CNN
	1    14850 8950
	1    0    0    -1  
$EndComp
Wire Wire Line
	15150 8050 15250 8050
Wire Wire Line
	15250 8150 15150 8150
Wire Wire Line
	15250 1800 15250 1850
Wire Wire Line
	15250 3850 15250 3900
Wire Wire Line
	15250 5900 15250 5950
Wire Wire Line
	15250 8050 15250 8100
Wire Wire Line
	12750 8050 12750 8100
Wire Wire Line
	12750 5900 12750 5950
Wire Wire Line
	12750 3850 12750 3900
Wire Wire Line
	15250 1850 15500 1850
Connection ~ 15250 1850
Wire Wire Line
	15250 1850 15250 1900
Wire Wire Line
	12750 3900 13000 3900
Connection ~ 12750 3900
Wire Wire Line
	12750 3900 12750 3950
Wire Wire Line
	12750 5950 13000 5950
Connection ~ 12750 5950
Wire Wire Line
	12750 5950 12750 6000
Wire Wire Line
	12750 8100 13000 8100
Connection ~ 12750 8100
Wire Wire Line
	12750 8100 12750 8150
Wire Wire Line
	15250 3900 15500 3900
Wire Wire Line
	15250 5950 15500 5950
Connection ~ 15250 3900
Wire Wire Line
	15250 3900 15250 3950
Connection ~ 15250 5950
Wire Wire Line
	15250 5950 15250 6000
Wire Wire Line
	15250 8100 15500 8100
Connection ~ 15250 8100
Wire Wire Line
	15250 8100 15250 8150
Text GLabel 13000 3900 2    50   BiDi ~ 0
MD1
Text GLabel 13000 5950 2    50   BiDi ~ 0
MD2
Text GLabel 13000 8100 2    50   BiDi ~ 0
MD3
Text GLabel 15500 1850 2    50   BiDi ~ 0
MD4
Connection ~ 12750 1850
Wire Wire Line
	12750 1850 12750 1900
Wire Wire Line
	12750 1800 12750 1850
Text GLabel 13000 1850 2    50   BiDi ~ 0
MD0
Wire Wire Line
	12750 1850 13000 1850
Text GLabel 15500 3900 2    50   BiDi ~ 0
MD5
Text GLabel 15500 5950 2    50   BiDi ~ 0
MD6
Text GLabel 15500 8100 2    50   BiDi ~ 0
MD7
Wire Wire Line
	11750 2600 10700 2600
Wire Wire Line
	10700 2600 10700 4650
Wire Wire Line
	14250 2600 13300 2600
Wire Wire Line
	13300 2600 13300 4650
Wire Wire Line
	13300 9700 10700 9700
Wire Wire Line
	11750 8850 10700 8850
Connection ~ 10700 8850
Wire Wire Line
	11750 6700 10700 6700
Connection ~ 10700 6700
Wire Wire Line
	10700 6700 10700 8850
Wire Wire Line
	11750 4650 10700 4650
Connection ~ 10700 4650
Wire Wire Line
	10700 4650 10700 6700
Wire Wire Line
	14250 4650 13300 4650
Connection ~ 13300 4650
Wire Wire Line
	13300 4650 13300 6700
Wire Wire Line
	14250 6700 13300 6700
Connection ~ 13300 6700
Wire Wire Line
	13300 6700 13300 8850
Wire Wire Line
	14250 8850 13300 8850
Connection ~ 13300 8850
Wire Wire Line
	13300 8850 13300 9700
Text GLabel 10450 9700 0    50   Input ~ 0
~WE
Entry Wire Line
	11350 1700 11450 1800
Entry Wire Line
	11350 1800 11450 1900
Entry Wire Line
	11350 1900 11450 2000
Entry Wire Line
	11350 2000 11450 2100
Entry Wire Line
	11350 2100 11450 2200
Entry Wire Line
	11350 2200 11450 2300
Entry Wire Line
	11350 2300 11450 2400
Text Label 11450 1800 0    50   ~ 0
RAM-A0
Text Label 11450 2000 0    50   ~ 0
RAM-A1
Text Label 11450 1900 0    50   ~ 0
RAM-A2
Text Label 11450 2200 0    50   ~ 0
RAM-A3
Text Label 11450 2300 0    50   ~ 0
RAM-A4
Text Label 11450 2400 0    50   ~ 0
RAM-A5
Text Label 11450 2100 0    50   ~ 0
RAM-A6
Wire Wire Line
	11750 2700 11300 2700
Wire Wire Line
	11750 2800 11300 2800
Text GLabel 11300 2800 0    50   Input ~ 0
~CAS
Text GLabel 11300 2700 0    50   Input ~ 0
~RAS
Wire Wire Line
	14250 2700 13800 2700
Wire Wire Line
	14250 2800 13800 2800
Text GLabel 13800 2800 0    50   Input ~ 0
~CAS
Text GLabel 13800 2700 0    50   Input ~ 0
~RAS
Wire Wire Line
	11750 4750 11300 4750
Wire Wire Line
	11750 4850 11300 4850
Text GLabel 11300 4850 0    50   Input ~ 0
~CAS
Text GLabel 11300 4750 0    50   Input ~ 0
~RAS
Wire Wire Line
	11750 6800 11300 6800
Wire Wire Line
	11750 6900 11300 6900
Text GLabel 11300 6900 0    50   Input ~ 0
~CAS
Text GLabel 11300 6800 0    50   Input ~ 0
~RAS
Wire Wire Line
	11750 8950 11300 8950
Wire Wire Line
	11750 9050 11300 9050
Text GLabel 11300 9050 0    50   Input ~ 0
~CAS
Text GLabel 11300 8950 0    50   Input ~ 0
~RAS
Wire Wire Line
	14250 8950 13800 8950
Wire Wire Line
	14250 9050 13800 9050
Text GLabel 13800 9050 0    50   Input ~ 0
~CAS
Text GLabel 13800 8950 0    50   Input ~ 0
~RAS
Wire Wire Line
	14250 6800 13800 6800
Wire Wire Line
	14250 6900 13800 6900
Text GLabel 13800 6900 0    50   Input ~ 0
~CAS
Text GLabel 13800 6800 0    50   Input ~ 0
~RAS
Wire Wire Line
	14250 4750 13800 4750
Wire Wire Line
	14250 4850 13800 4850
Text GLabel 13800 4850 0    50   Input ~ 0
~CAS
Text GLabel 13800 4750 0    50   Input ~ 0
~RAS
$Comp
L 74xx:74LS374 U60
U 1 1 6070E4B2
P 8650 1900
F 0 "U60" H 8400 2550 50  0000 C CNN
F 1 "74LS374" H 8850 2550 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 8650 1900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS374" H 8650 1900 50  0001 C CNN
	1    8650 1900
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0121
U 1 1 6070F8D7
P 8650 2700
F 0 "#PWR0121" H 8650 2450 50  0001 C CNN
F 1 "GND" H 8655 2527 50  0000 C CNN
F 2 "" H 8650 2700 50  0001 C CNN
F 3 "" H 8650 2700 50  0001 C CNN
	1    8650 2700
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0122
U 1 1 6071010E
P 8650 1100
F 0 "#PWR0122" H 8650 950 50  0001 C CNN
F 1 "VCC" H 8665 1273 50  0000 C CNN
F 2 "" H 8650 1100 50  0001 C CNN
F 3 "" H 8650 1100 50  0001 C CNN
	1    8650 1100
	1    0    0    -1  
$EndComp
NoConn ~ 9150 2100
$Comp
L 74xx:74LS374 U61
U 1 1 607CBF8D
P 8650 4000
F 0 "U61" H 8400 4650 50  0000 C CNN
F 1 "74LS374" H 8850 4650 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 8650 4000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS374" H 8650 4000 50  0001 C CNN
	1    8650 4000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0123
U 1 1 607CC157
P 8650 4800
F 0 "#PWR0123" H 8650 4550 50  0001 C CNN
F 1 "GND" H 8655 4627 50  0000 C CNN
F 2 "" H 8650 4800 50  0001 C CNN
F 3 "" H 8650 4800 50  0001 C CNN
	1    8650 4800
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0124
U 1 1 607CC161
P 8650 3200
F 0 "#PWR0124" H 8650 3050 50  0001 C CNN
F 1 "VCC" H 8665 3373 50  0000 C CNN
F 2 "" H 8650 3200 50  0001 C CNN
F 3 "" H 8650 3200 50  0001 C CNN
	1    8650 3200
	1    0    0    -1  
$EndComp
NoConn ~ 9150 4200
Wire Wire Line
	8150 4400 7700 4400
Wire Wire Line
	7700 4400 7700 2300
Wire Wire Line
	7700 2300 8150 2300
Wire Wire Line
	7700 2300 6550 2300
Connection ~ 7700 2300
Text GLabel 6550 2300 0    50   Input ~ 0
Q1
Wire Wire Line
	8150 2400 6550 2400
Text GLabel 6550 2400 0    50   Input ~ 0
~EN_CPU_RAS_ADDR
NoConn ~ 8150 2100
Wire Wire Line
	8150 1400 7350 1400
Wire Wire Line
	8150 1500 7350 1500
Wire Wire Line
	8150 1600 7350 1600
Wire Wire Line
	8150 1700 7350 1700
Wire Wire Line
	8150 1800 7350 1800
Wire Wire Line
	8150 1900 7350 1900
Wire Wire Line
	8150 2000 7350 2000
Text GLabel 7350 1400 0    50   Input ~ 0
A1
Text GLabel 7350 1500 0    50   Input ~ 0
A2
Text GLabel 7350 1600 0    50   Input ~ 0
A3
Text GLabel 7350 1700 0    50   Input ~ 0
A4
Text GLabel 7350 1800 0    50   Input ~ 0
A5
Text GLabel 7350 1900 0    50   Input ~ 0
A6
Text GLabel 7350 2000 0    50   Input ~ 0
A7
Wire Wire Line
	8150 4500 6550 4500
Text GLabel 6550 4500 0    50   Input ~ 0
~EN_CPU_CAS_ADDR
NoConn ~ 8150 4200
Wire Wire Line
	8150 3500 7350 3500
Wire Wire Line
	8150 3600 7350 3600
Wire Wire Line
	8150 3700 7350 3700
Wire Wire Line
	8150 3800 7350 3800
Wire Wire Line
	8150 3900 7350 3900
Wire Wire Line
	8150 4000 7350 4000
Wire Wire Line
	8150 4100 7350 4100
Text GLabel 7350 3500 0    50   Input ~ 0
A8
Text GLabel 7350 3600 0    50   Input ~ 0
A9
Text GLabel 7350 3700 0    50   Input ~ 0
A10
Text GLabel 7350 3800 0    50   Input ~ 0
A11
Text GLabel 7350 3900 0    50   Input ~ 0
A12
Text GLabel 7350 4000 0    50   Input ~ 0
A0
Text GLabel 7350 4100 0    50   Input ~ 0
A13
$Comp
L 74xx:74LS374 U59
U 1 1 6092E40B
P 8650 6100
F 0 "U59" H 8400 6750 50  0000 C CNN
F 1 "74LS374" H 8850 6750 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 8650 6100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS374" H 8650 6100 50  0001 C CNN
	1    8650 6100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0125
U 1 1 6092E6C5
P 8650 6900
F 0 "#PWR0125" H 8650 6650 50  0001 C CNN
F 1 "GND" H 8655 6727 50  0000 C CNN
F 2 "" H 8650 6900 50  0001 C CNN
F 3 "" H 8650 6900 50  0001 C CNN
	1    8650 6900
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0126
U 1 1 6092E6CF
P 8650 5300
F 0 "#PWR0126" H 8650 5150 50  0001 C CNN
F 1 "VCC" H 8665 5473 50  0000 C CNN
F 2 "" H 8650 5300 50  0001 C CNN
F 3 "" H 8650 5300 50  0001 C CNN
	1    8650 5300
	1    0    0    -1  
$EndComp
NoConn ~ 9150 6300
$Comp
L 74xx:74LS374 U58
U 1 1 6092E6E8
P 8650 8200
F 0 "U58" H 8400 8850 50  0000 C CNN
F 1 "74LS374" H 8850 8850 50  0000 C CNN
F 2 "Package_DIP:DIP-20_W7.62mm" H 8650 8200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS374" H 8650 8200 50  0001 C CNN
	1    8650 8200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0127
U 1 1 6092E6F2
P 8650 9000
F 0 "#PWR0127" H 8650 8750 50  0001 C CNN
F 1 "GND" H 8655 8827 50  0000 C CNN
F 2 "" H 8650 9000 50  0001 C CNN
F 3 "" H 8650 9000 50  0001 C CNN
	1    8650 9000
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0128
U 1 1 6092E6FC
P 8650 7400
F 0 "#PWR0128" H 8650 7250 50  0001 C CNN
F 1 "VCC" H 8665 7573 50  0000 C CNN
F 2 "" H 8650 7400 50  0001 C CNN
F 3 "" H 8650 7400 50  0001 C CNN
	1    8650 7400
	1    0    0    -1  
$EndComp
NoConn ~ 9150 8400
Text Label 9200 8200 0    50   ~ 0
RAM-A6
Wire Wire Line
	10700 8850 10700 9700
Wire Wire Line
	10450 9700 10700 9700
Connection ~ 10700 9700
NoConn ~ 9150 8300
NoConn ~ 8150 6300
Wire Wire Line
	8150 8600 7700 8600
Wire Wire Line
	7700 8600 7700 6500
Wire Wire Line
	8150 6500 7700 6500
Connection ~ 7700 6500
Wire Wire Line
	7700 6500 7700 5250
Text GLabel 6550 5250 0    50   Input ~ 0
~RAS
Wire Wire Line
	6550 5250 7700 5250
Wire Wire Line
	8150 6600 7600 6600
Wire Wire Line
	7600 6600 7600 5100
Wire Wire Line
	7600 5100 6550 5100
Text GLabel 6550 5100 0    50   Input ~ 0
~EN_CRT_RAS_ADDR
Wire Wire Line
	8150 8700 7700 8700
Wire Wire Line
	7700 8700 7700 9050
Wire Wire Line
	7700 9050 7100 9050
Text GLabel 6500 9050 0    50   Input ~ 0
~EN_CRT_CAS_ADDR
Text Label 9050 9600 0    50   ~ 0
RAM-A5
$Comp
L 74xx:74LS125 U62
U 1 1 60B30E61
P 8000 9600
F 0 "U62" H 8000 9917 50  0000 C CNN
F 1 "74LS125" H 8000 9826 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8000 9600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 8000 9600 50  0001 C CNN
	1    8000 9600
	1    0    0    -1  
$EndComp
Wire Wire Line
	7100 9050 7100 9900
Wire Wire Line
	7100 9900 8000 9900
Wire Wire Line
	8000 9900 8000 9850
Connection ~ 7100 9050
Wire Wire Line
	7100 9050 6500 9050
Text GLabel 6500 9600 0    50   Input ~ 0
~HCLK
Wire Wire Line
	7700 9600 6500 9600
$Comp
L 74xx:74LS02 U49
U 3 1 60B89083
P 6900 10550
F 0 "U49" H 6900 10875 50  0000 C CNN
F 1 "74LS02" H 6900 10784 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 6900 10550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 6900 10550 50  0001 C CNN
	3    6900 10550
	1    0    0    -1  
$EndComp
Wire Wire Line
	7200 10550 7450 10550
Wire Wire Line
	7450 10550 7450 8200
Wire Wire Line
	7450 8200 8150 8200
NoConn ~ 8150 8300
NoConn ~ 8150 8400
Wire Wire Line
	6600 10450 6450 10450
Wire Wire Line
	6450 10450 6450 10550
Wire Wire Line
	6450 10650 6600 10650
$Comp
L 74xx:74LS51 U48
U 1 1 60BDFB12
P 5950 10550
F 0 "U48" H 5950 11075 50  0000 C CNN
F 1 "74LS51" H 5950 10984 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5950 10550 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/sn74ls51.pdf" H 5950 10550 50  0001 C CNN
	1    5950 10550
	1    0    0    -1  
$EndComp
Connection ~ 6450 10550
Wire Wire Line
	6450 10550 6450 10650
Wire Wire Line
	5450 10750 5150 10750
Wire Wire Line
	5150 10750 5150 10450
Wire Wire Line
	5150 10450 5450 10450
Wire Wire Line
	5450 10850 4550 10850
Text GLabel 4550 10850 0    50   Input ~ 0
~GRPH
$Comp
L power:VCC #PWR0129
U 1 1 60C0B1F8
P 4350 10650
F 0 "#PWR0129" H 4350 10500 50  0001 C CNN
F 1 "VCC" H 4365 10823 50  0000 C CNN
F 2 "" H 4350 10650 50  0001 C CNN
F 3 "" H 4350 10650 50  0001 C CNN
	1    4350 10650
	1    0    0    -1  
$EndComp
Wire Wire Line
	5150 10750 4350 10750
Wire Wire Line
	4350 10750 4350 10650
Connection ~ 5150 10750
Wire Wire Line
	4550 10350 5450 10350
Text GLabel 4550 10350 0    50   Input ~ 0
GRPH
$Comp
L GPU:MC6845 U38
U 1 1 60C3884A
P 3300 7200
F 0 "U38" H 2850 8550 50  0000 C CNN
F 1 "MC6845" H 3650 8550 50  0000 C CNN
F 2 "Package_DIP:DIP-40_W15.24mm" H 3350 5850 50  0001 L CNN
F 3 "http://pdf.datasheetcatalog.com/datasheet_pdf/motorola/MC6845L_and_MC6845P.pdf" H 3300 7200 50  0001 C CNN
	1    3300 7200
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0130
U 1 1 60C5C68E
P 3300 8600
F 0 "#PWR0130" H 3300 8350 50  0001 C CNN
F 1 "GND" H 3305 8427 50  0000 C CNN
F 2 "" H 3300 8600 50  0001 C CNN
F 3 "" H 3300 8600 50  0001 C CNN
	1    3300 8600
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0131
U 1 1 60C5D07A
P 3300 5800
F 0 "#PWR0131" H 3300 5650 50  0001 C CNN
F 1 "VCC" H 3315 5973 50  0000 C CNN
F 2 "" H 3300 5800 50  0001 C CNN
F 3 "" H 3300 5800 50  0001 C CNN
	1    3300 5800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2700 7100 1900 7100
Text GLabel 1900 7100 0    50   Input ~ 0
A0
Wire Wire Line
	3900 7500 5100 7500
Wire Wire Line
	5100 7500 5100 10250
Wire Wire Line
	5100 10250 5450 10250
Wire Wire Line
	5100 7500 5350 7500
Connection ~ 5100 7500
Text GLabel 5350 7500 2    50   Output ~ 0
RA0
Wire Wire Line
	3900 7600 5350 7600
Wire Wire Line
	3900 7700 5350 7700
NoConn ~ 3900 7800
NoConn ~ 3900 7900
Text GLabel 5350 7600 2    50   Output ~ 0
RA1
Text GLabel 5350 7700 2    50   Output ~ 0
RA2
Wire Wire Line
	5450 10650 5050 10650
Wire Wire Line
	5050 10650 5050 7200
Wire Wire Line
	5050 7200 3900 7200
NoConn ~ 3900 7300
Wire Wire Line
	3900 8200 5350 8200
Text GLabel 5350 8200 2    50   Output ~ 0
HSYNC
Wire Wire Line
	3900 8300 5350 8300
Text GLabel 5350 8300 2    50   Output ~ 0
VSYNC
Wire Wire Line
	3900 8400 5350 8400
Text GLabel 5350 8400 2    50   Output ~ 0
CURSOR
Wire Wire Line
	3900 8100 5350 8100
Text GLabel 5350 8100 2    50   Output ~ 0
DISPEN
Wire Wire Line
	3900 7100 5750 7100
Wire Wire Line
	5750 7100 5750 8100
Wire Wire Line
	5750 8100 8150 8100
Wire Wire Line
	3900 7000 5800 7000
Wire Wire Line
	5800 7000 5800 8000
Wire Wire Line
	5800 8000 8150 8000
Wire Wire Line
	3900 6900 5850 6900
Wire Wire Line
	5850 6900 5850 7900
Wire Wire Line
	5850 7900 8150 7900
Wire Wire Line
	3900 6800 5900 6800
Wire Wire Line
	5900 6800 5900 7800
Wire Wire Line
	5900 7800 8150 7800
Wire Wire Line
	3900 6700 5950 6700
Wire Wire Line
	5950 6700 5950 7700
Wire Wire Line
	5950 7700 8150 7700
Wire Wire Line
	3900 6600 5950 6600
Wire Wire Line
	5950 6600 5950 6200
Wire Wire Line
	5950 6200 8150 6200
Wire Wire Line
	3900 6500 5900 6500
Wire Wire Line
	5900 6500 5900 6100
Wire Wire Line
	5900 6100 8150 6100
Wire Wire Line
	8150 6000 5850 6000
Wire Wire Line
	5850 6000 5850 6400
Wire Wire Line
	5850 6400 3900 6400
Wire Wire Line
	3900 6300 5800 6300
Wire Wire Line
	5800 6300 5800 5900
Wire Wire Line
	5800 5900 8150 5900
Wire Wire Line
	8150 5800 5750 5800
Wire Wire Line
	5750 5800 5750 6200
Wire Wire Line
	5750 6200 3900 6200
Wire Wire Line
	3900 6100 5700 6100
Wire Wire Line
	5700 6100 5700 5700
Wire Wire Line
	5700 5700 8150 5700
Wire Wire Line
	3900 6000 5650 6000
Wire Wire Line
	5650 6000 5650 5600
Wire Wire Line
	5650 5600 8150 5600
Wire Wire Line
	2700 6000 1900 6000
Wire Wire Line
	2700 6100 1900 6100
Wire Wire Line
	2700 6200 1900 6200
Wire Wire Line
	2700 6300 1900 6300
Wire Wire Line
	2700 6400 1900 6400
Wire Wire Line
	2700 6500 1900 6500
Wire Wire Line
	2700 6600 1900 6600
Wire Wire Line
	2700 6700 1900 6700
Text GLabel 1900 6000 0    50   Input ~ 0
D0
Text GLabel 1900 6100 0    50   Input ~ 0
D1
Text GLabel 1900 6200 0    50   Input ~ 0
D2
Text GLabel 1900 6300 0    50   Input ~ 0
D3
Text GLabel 1900 6400 0    50   Input ~ 0
D4
Text GLabel 1900 6500 0    50   Input ~ 0
D5
Text GLabel 1900 6600 0    50   Input ~ 0
D6
Text GLabel 1900 6700 0    50   Input ~ 0
D7
Wire Wire Line
	2700 6900 1900 6900
Text GLabel 1900 6900 0    50   Input ~ 0
~IOW
Wire Wire Line
	2700 7500 1900 7500
Text GLabel 1900 7500 0    50   Input ~ 0
~CCLK
Wire Wire Line
	2700 7700 1900 7700
Text GLabel 1900 7700 0    50   Input ~ 0
LPEN_STR
Wire Wire Line
	2700 7300 1900 7300
Text GLabel 1900 7300 0    50   Input ~ 0
~RESET
Wire Wire Line
	2700 7200 1900 7200
Text GLabel 1900 7200 0    50   Input ~ 0
E
Wire Wire Line
	2700 7000 1900 7000
Text GLabel 1900 7000 0    50   Input ~ 0
~6845_CS
$Comp
L 74xx:74LS02 U49
U 4 1 604BB927
P 4350 1050
F 0 "U49" H 4350 750 50  0000 C CNN
F 1 "74LS02" H 4350 850 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4350 1050 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 4350 1050 50  0001 C CNN
	4    4350 1050
	1    0    0    1   
$EndComp
$Comp
L 74xx:74LS32 U14
U 2 1 604C1A06
P 5250 1350
F 0 "U14" H 5250 1033 50  0000 C CNN
F 1 "74S32" H 5250 1124 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5250 1350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 5250 1350 50  0001 C CNN
	2    5250 1350
	1    0    0    1   
$EndComp
Wire Wire Line
	5550 1350 6050 1350
Text GLabel 6050 1350 2    50   Output ~ 0
ALPHA_DOTS
Wire Wire Line
	4650 1050 4800 1050
Wire Wire Line
	4800 1050 4800 1250
Wire Wire Line
	4800 1250 4950 1250
Wire Wire Line
	4050 950  2200 950 
Text GLabel 2200 950  0    50   Input ~ 0
~CURSOR_BLINK
Wire Wire Line
	4050 1150 2400 1150
Text GLabel 2200 1150 0    50   Input ~ 0
~CURSOR_DLY
$Comp
L 74xx:74LS08 U13
U 4 1 605AAD82
P 4350 1650
F 0 "U13" H 4350 1333 50  0000 C CNN
F 1 "74LS08" H 4350 1424 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4350 1650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 4350 1650 50  0001 C CNN
	4    4350 1650
	1    0    0    1   
$EndComp
Wire Wire Line
	4650 1650 4800 1650
Wire Wire Line
	4800 1650 4800 1450
Wire Wire Line
	4800 1450 4950 1450
Wire Wire Line
	4050 1550 3850 1550
Wire Wire Line
	3850 1550 3850 1350
Wire Wire Line
	3850 1350 2200 1350
Text GLabel 2200 1350 0    50   Input ~ 0
CHG_DOTS
$Comp
L 74xx:74LS32 U14
U 1 1 60623BAF
P 3550 1750
F 0 "U14" H 3550 1433 50  0000 C CNN
F 1 "74S32" H 3550 1524 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 3550 1750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS32" H 3550 1750 50  0001 C CNN
	1    3550 1750
	1    0    0    1   
$EndComp
Wire Wire Line
	3850 1750 4050 1750
Wire Wire Line
	3250 1650 2500 1650
Wire Wire Line
	2500 1650 2500 1550
Wire Wire Line
	2500 1550 2200 1550
Text GLabel 2200 1550 0    50   Input ~ 0
~BLINK
$Comp
L 74xx:74LS10 U28
U 3 1 606787A2
P 2800 2100
F 0 "U28" H 2800 2425 50  0000 C CNN
F 1 "74S10" H 2800 2334 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2800 2100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS10" H 2800 2100 50  0001 C CNN
	3    2800 2100
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 1850 3200 1850
Wire Wire Line
	3200 1850 3200 2100
Wire Wire Line
	3200 2100 3100 2100
Wire Wire Line
	2500 2000 2400 2000
Wire Wire Line
	2400 2000 2400 1150
Connection ~ 2400 1150
Wire Wire Line
	2400 1150 2200 1150
Text GLabel 2200 2100 0    50   Input ~ 0
ENABLE_BLINK
Wire Wire Line
	2200 2100 2500 2100
Text GLabel 2200 2300 0    50   Input ~ 0
AT7
Wire Wire Line
	2500 2200 2300 2200
Wire Wire Line
	2300 2200 2300 2300
Wire Wire Line
	2300 2300 2200 2300
Entry Wire Line
	9550 8200 9650 8300
Entry Wire Line
	9550 2000 9650 2100
Entry Wire Line
	9550 1900 9650 2000
Entry Wire Line
	9550 1800 9650 1900
Entry Wire Line
	9550 1700 9650 1800
Entry Wire Line
	9550 1600 9650 1700
Entry Wire Line
	9550 1500 9650 1600
Entry Wire Line
	9550 1400 9650 1500
Wire Wire Line
	9550 8650 9550 9600
Entry Wire Line
	9550 8650 9650 8550
Wire Wire Line
	9150 1400 9550 1400
Wire Wire Line
	9150 1500 9550 1500
Wire Wire Line
	9150 1600 9550 1600
Wire Wire Line
	9150 1700 9550 1700
Wire Wire Line
	9150 1800 9550 1800
Wire Wire Line
	9150 1900 9550 1900
Wire Wire Line
	9150 2000 9550 2000
Wire Wire Line
	9150 8200 9550 8200
Wire Wire Line
	8300 9600 9550 9600
Connection ~ 11350 1200
Wire Bus Line
	11350 1200 9650 1200
Wire Bus Line
	11350 1200 13850 1200
Wire Wire Line
	11450 1800 11750 1800
Wire Wire Line
	11450 2000 11750 2000
Wire Wire Line
	11450 1900 11750 1900
Wire Wire Line
	11450 2200 11750 2200
Wire Wire Line
	11450 2300 11750 2300
Wire Wire Line
	11450 2400 11750 2400
Wire Wire Line
	11450 2100 11750 2100
Text Label 9200 1400 0    50   ~ 0
RAM-A0
Text Label 9200 1500 0    50   ~ 0
RAM-A1
Text Label 9200 1600 0    50   ~ 0
RAM-A2
Text Label 9200 1700 0    50   ~ 0
RAM-A3
Text Label 9200 1800 0    50   ~ 0
RAM-A4
Text Label 9200 1900 0    50   ~ 0
RAM-A5
Text Label 9200 2000 0    50   ~ 0
RAM-A6
Entry Wire Line
	9550 4100 9650 4200
Entry Wire Line
	9550 4000 9650 4100
Entry Wire Line
	9550 3900 9650 4000
Entry Wire Line
	9550 3800 9650 3900
Entry Wire Line
	9550 3700 9650 3800
Entry Wire Line
	9550 3600 9650 3700
Entry Wire Line
	9550 3500 9650 3600
Wire Wire Line
	9150 3500 9550 3500
Wire Wire Line
	9150 3600 9550 3600
Wire Wire Line
	9150 3700 9550 3700
Wire Wire Line
	9150 3800 9550 3800
Wire Wire Line
	9150 3900 9550 3900
Wire Wire Line
	9150 4000 9550 4000
Wire Wire Line
	9150 4100 9550 4100
Text Label 9200 3500 0    50   ~ 0
RAM-A0
Text Label 9200 3600 0    50   ~ 0
RAM-A1
Text Label 9200 3700 0    50   ~ 0
RAM-A2
Text Label 9200 3800 0    50   ~ 0
RAM-A3
Text Label 9200 3900 0    50   ~ 0
RAM-A4
Text Label 9200 4000 0    50   ~ 0
RAM-A5
Text Label 9200 4100 0    50   ~ 0
RAM-A6
Entry Wire Line
	9550 6200 9650 6300
Entry Wire Line
	9550 6100 9650 6200
Entry Wire Line
	9550 6000 9650 6100
Entry Wire Line
	9550 5900 9650 6000
Entry Wire Line
	9550 5800 9650 5900
Entry Wire Line
	9550 5700 9650 5800
Entry Wire Line
	9550 5600 9650 5700
Wire Wire Line
	9150 5600 9550 5600
Wire Wire Line
	9150 5700 9550 5700
Wire Wire Line
	9150 5800 9550 5800
Wire Wire Line
	9150 5900 9550 5900
Wire Wire Line
	9150 6000 9550 6000
Wire Wire Line
	9150 6100 9550 6100
Wire Wire Line
	9150 6200 9550 6200
Text Label 9200 5600 0    50   ~ 0
RAM-A0
Text Label 9200 5700 0    50   ~ 0
RAM-A1
Text Label 9200 5800 0    50   ~ 0
RAM-A2
Text Label 9200 5900 0    50   ~ 0
RAM-A3
Text Label 9200 6000 0    50   ~ 0
RAM-A4
Text Label 9200 6100 0    50   ~ 0
RAM-A5
Text Label 9200 6200 0    50   ~ 0
RAM-A6
Entry Wire Line
	9550 8100 9650 8200
Entry Wire Line
	9550 8000 9650 8100
Entry Wire Line
	9550 7900 9650 8000
Entry Wire Line
	9550 7800 9650 7900
Entry Wire Line
	9550 7700 9650 7800
Wire Wire Line
	9150 7700 9550 7700
Wire Wire Line
	9150 7800 9550 7800
Wire Wire Line
	9150 7900 9550 7900
Wire Wire Line
	9150 8000 9550 8000
Wire Wire Line
	9150 8100 9550 8100
Text Label 9200 7700 0    50   ~ 0
RAM-A0
Text Label 9200 7800 0    50   ~ 0
RAM-A1
Text Label 9200 7900 0    50   ~ 0
RAM-A2
Text Label 9200 8000 0    50   ~ 0
RAM-A3
Text Label 9200 8100 0    50   ~ 0
RAM-A4
Entry Wire Line
	11350 3750 11450 3850
Entry Wire Line
	11350 3850 11450 3950
Entry Wire Line
	11350 3950 11450 4050
Entry Wire Line
	11350 4050 11450 4150
Entry Wire Line
	11350 4150 11450 4250
Entry Wire Line
	11350 4250 11450 4350
Entry Wire Line
	11350 4350 11450 4450
Entry Wire Line
	11350 5800 11450 5900
Entry Wire Line
	11350 5900 11450 6000
Entry Wire Line
	11350 6000 11450 6100
Entry Wire Line
	11350 6100 11450 6200
Entry Wire Line
	11350 6200 11450 6300
Entry Wire Line
	11350 6300 11450 6400
Entry Wire Line
	11350 6400 11450 6500
Entry Wire Line
	11350 7950 11450 8050
Entry Wire Line
	11350 8050 11450 8150
Entry Wire Line
	11350 8150 11450 8250
Entry Wire Line
	11350 8250 11450 8350
Entry Wire Line
	11350 8350 11450 8450
Entry Wire Line
	11350 8450 11450 8550
Entry Wire Line
	11350 8550 11450 8650
Entry Wire Line
	13850 1700 13950 1800
Entry Wire Line
	13850 1800 13950 1900
Entry Wire Line
	13850 1900 13950 2000
Entry Wire Line
	13850 2000 13950 2100
Entry Wire Line
	13850 2100 13950 2200
Entry Wire Line
	13850 2200 13950 2300
Entry Wire Line
	13850 2300 13950 2400
Entry Wire Line
	13850 3750 13950 3850
Entry Wire Line
	13850 3850 13950 3950
Entry Wire Line
	13850 3950 13950 4050
Entry Wire Line
	13850 4050 13950 4150
Entry Wire Line
	13850 4150 13950 4250
Entry Wire Line
	13850 4250 13950 4350
Entry Wire Line
	13850 4350 13950 4450
Entry Wire Line
	13850 5800 13950 5900
Entry Wire Line
	13850 5900 13950 6000
Entry Wire Line
	13850 6000 13950 6100
Entry Wire Line
	13850 6100 13950 6200
Entry Wire Line
	13850 6200 13950 6300
Entry Wire Line
	13850 6300 13950 6400
Entry Wire Line
	13850 6400 13950 6500
Entry Wire Line
	13850 7950 13950 8050
Entry Wire Line
	13850 8050 13950 8150
Entry Wire Line
	13850 8150 13950 8250
Entry Wire Line
	13850 8250 13950 8350
Entry Wire Line
	13850 8350 13950 8450
Entry Wire Line
	13850 8450 13950 8550
Entry Wire Line
	13850 8550 13950 8650
$Comp
L power:GND #PWR0111
U 1 1 60472FFD
P 12200 9300
F 0 "#PWR0111" H 12200 9050 50  0001 C CNN
F 1 "GND" H 12205 9127 50  0000 C CNN
F 2 "" H 12200 9300 50  0001 C CNN
F 3 "" H 12200 9300 50  0001 C CNN
	1    12200 9300
	1    0    0    -1  
$EndComp
Text Label 11450 3850 0    50   ~ 0
RAM-A0
Text Label 11450 4050 0    50   ~ 0
RAM-A1
Text Label 11450 3950 0    50   ~ 0
RAM-A2
Text Label 11450 4250 0    50   ~ 0
RAM-A3
Text Label 11450 4350 0    50   ~ 0
RAM-A4
Text Label 11450 4450 0    50   ~ 0
RAM-A5
Text Label 11450 4150 0    50   ~ 0
RAM-A6
Wire Wire Line
	11450 3850 11750 3850
Wire Wire Line
	11450 4050 11750 4050
Wire Wire Line
	11450 3950 11750 3950
Wire Wire Line
	11450 4250 11750 4250
Wire Wire Line
	11450 4350 11750 4350
Wire Wire Line
	11450 4450 11750 4450
Wire Wire Line
	11450 4150 11750 4150
Text Label 13950 1800 0    50   ~ 0
RAM-A0
Text Label 13950 2000 0    50   ~ 0
RAM-A1
Text Label 13950 1900 0    50   ~ 0
RAM-A2
Text Label 13950 2200 0    50   ~ 0
RAM-A3
Text Label 13950 2300 0    50   ~ 0
RAM-A4
Text Label 13950 2400 0    50   ~ 0
RAM-A5
Text Label 13950 2100 0    50   ~ 0
RAM-A6
Wire Wire Line
	13950 1800 14250 1800
Wire Wire Line
	13950 2000 14250 2000
Wire Wire Line
	13950 1900 14250 1900
Wire Wire Line
	13950 2200 14250 2200
Wire Wire Line
	13950 2300 14250 2300
Wire Wire Line
	13950 2400 14250 2400
Wire Wire Line
	13950 2100 14250 2100
Text Label 13950 3850 0    50   ~ 0
RAM-A0
Text Label 13950 4050 0    50   ~ 0
RAM-A1
Text Label 13950 3950 0    50   ~ 0
RAM-A2
Text Label 13950 4250 0    50   ~ 0
RAM-A3
Text Label 13950 4350 0    50   ~ 0
RAM-A4
Text Label 13950 4450 0    50   ~ 0
RAM-A5
Text Label 13950 4150 0    50   ~ 0
RAM-A6
Wire Wire Line
	13950 3850 14250 3850
Wire Wire Line
	13950 4050 14250 4050
Wire Wire Line
	13950 3950 14250 3950
Wire Wire Line
	13950 4250 14250 4250
Wire Wire Line
	13950 4350 14250 4350
Wire Wire Line
	13950 4450 14250 4450
Wire Wire Line
	13950 4150 14250 4150
Text Label 13950 5900 0    50   ~ 0
RAM-A0
Text Label 13950 6100 0    50   ~ 0
RAM-A1
Text Label 13950 6000 0    50   ~ 0
RAM-A2
Text Label 13950 6300 0    50   ~ 0
RAM-A3
Text Label 13950 6400 0    50   ~ 0
RAM-A4
Text Label 13950 6500 0    50   ~ 0
RAM-A5
Text Label 13950 6200 0    50   ~ 0
RAM-A6
Wire Wire Line
	13950 5900 14250 5900
Wire Wire Line
	13950 6100 14250 6100
Wire Wire Line
	13950 6000 14250 6000
Wire Wire Line
	13950 6300 14250 6300
Wire Wire Line
	13950 6400 14250 6400
Wire Wire Line
	13950 6500 14250 6500
Wire Wire Line
	13950 6200 14250 6200
Text Label 13950 8050 0    50   ~ 0
RAM-A0
Text Label 13950 8250 0    50   ~ 0
RAM-A1
Text Label 13950 8150 0    50   ~ 0
RAM-A2
Text Label 13950 8450 0    50   ~ 0
RAM-A3
Text Label 13950 8550 0    50   ~ 0
RAM-A4
Text Label 13950 8650 0    50   ~ 0
RAM-A5
Text Label 13950 8350 0    50   ~ 0
RAM-A6
Wire Wire Line
	13950 8050 14250 8050
Wire Wire Line
	13950 8250 14250 8250
Wire Wire Line
	13950 8150 14250 8150
Wire Wire Line
	13950 8450 14250 8450
Wire Wire Line
	13950 8550 14250 8550
Wire Wire Line
	13950 8650 14250 8650
Wire Wire Line
	13950 8350 14250 8350
Text Label 11450 8050 0    50   ~ 0
RAM-A0
Text Label 11450 8250 0    50   ~ 0
RAM-A1
Text Label 11450 8150 0    50   ~ 0
RAM-A2
Text Label 11450 8450 0    50   ~ 0
RAM-A3
Text Label 11450 8550 0    50   ~ 0
RAM-A4
Text Label 11450 8650 0    50   ~ 0
RAM-A5
Text Label 11450 8350 0    50   ~ 0
RAM-A6
Wire Wire Line
	11450 8050 11750 8050
Wire Wire Line
	11450 8250 11750 8250
Wire Wire Line
	11450 8150 11750 8150
Wire Wire Line
	11450 8450 11750 8450
Wire Wire Line
	11450 8550 11750 8550
Wire Wire Line
	11450 8650 11750 8650
Wire Wire Line
	11450 8350 11750 8350
Text Label 11450 5900 0    50   ~ 0
RAM-A0
Text Label 11450 6100 0    50   ~ 0
RAM-A1
Text Label 11450 6000 0    50   ~ 0
RAM-A2
Text Label 11450 6300 0    50   ~ 0
RAM-A3
Text Label 11450 6400 0    50   ~ 0
RAM-A4
Text Label 11450 6500 0    50   ~ 0
RAM-A5
Text Label 11450 6200 0    50   ~ 0
RAM-A6
Wire Wire Line
	11450 5900 11750 5900
Wire Wire Line
	11450 6100 11750 6100
Wire Wire Line
	11450 6000 11750 6000
Wire Wire Line
	11450 6300 11750 6300
Wire Wire Line
	11450 6400 11750 6400
Wire Wire Line
	11450 6500 11750 6500
Wire Wire Line
	11450 6200 11750 6200
Text Notes 11450 950  0    100  ~ 0
My CGA board uses 8x MCM4517P12 DRAM chips
Wire Wire Line
	12650 2300 12750 2300
Wire Wire Line
	12750 2300 12750 2350
Wire Wire Line
	12750 2400 12650 2400
$Comp
L power:GND #PWR0241
U 1 1 6084F132
P 12850 2500
F 0 "#PWR0241" H 12850 2250 50  0001 C CNN
F 1 "GND" H 12855 2327 50  0000 C CNN
F 2 "" H 12850 2500 50  0001 C CNN
F 3 "" H 12850 2500 50  0001 C CNN
	1    12850 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	12750 2350 12850 2350
Wire Wire Line
	12850 2350 12850 2500
Connection ~ 12750 2350
Wire Wire Line
	12750 2350 12750 2400
Wire Wire Line
	15150 2300 15250 2300
Wire Wire Line
	15250 2300 15250 2350
Wire Wire Line
	15250 2400 15150 2400
$Comp
L power:GND #PWR0242
U 1 1 6087581A
P 15350 2500
F 0 "#PWR0242" H 15350 2250 50  0001 C CNN
F 1 "GND" H 15355 2327 50  0000 C CNN
F 2 "" H 15350 2500 50  0001 C CNN
F 3 "" H 15350 2500 50  0001 C CNN
	1    15350 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	15250 2350 15350 2350
Wire Wire Line
	15350 2350 15350 2500
Connection ~ 15250 2350
Wire Wire Line
	15250 2350 15250 2400
Wire Wire Line
	12650 4350 12750 4350
Wire Wire Line
	12750 4350 12750 4400
Wire Wire Line
	12750 4450 12650 4450
$Comp
L power:GND #PWR0243
U 1 1 6089A5C0
P 12850 4550
F 0 "#PWR0243" H 12850 4300 50  0001 C CNN
F 1 "GND" H 12855 4377 50  0000 C CNN
F 2 "" H 12850 4550 50  0001 C CNN
F 3 "" H 12850 4550 50  0001 C CNN
	1    12850 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	12750 4400 12850 4400
Wire Wire Line
	12850 4400 12850 4550
Connection ~ 12750 4400
Wire Wire Line
	12750 4400 12750 4450
Wire Wire Line
	15150 4350 15250 4350
Wire Wire Line
	15250 4350 15250 4400
Wire Wire Line
	15250 4450 15150 4450
$Comp
L power:GND #PWR0244
U 1 1 608BFDC6
P 15350 4550
F 0 "#PWR0244" H 15350 4300 50  0001 C CNN
F 1 "GND" H 15355 4377 50  0000 C CNN
F 2 "" H 15350 4550 50  0001 C CNN
F 3 "" H 15350 4550 50  0001 C CNN
	1    15350 4550
	1    0    0    -1  
$EndComp
Wire Wire Line
	15250 4400 15350 4400
Wire Wire Line
	15350 4400 15350 4550
Connection ~ 15250 4400
Wire Wire Line
	15250 4400 15250 4450
Wire Wire Line
	12650 6400 12750 6400
Wire Wire Line
	12750 6400 12750 6450
Wire Wire Line
	12750 6500 12650 6500
$Comp
L power:GND #PWR0245
U 1 1 608E60A7
P 12850 6600
F 0 "#PWR0245" H 12850 6350 50  0001 C CNN
F 1 "GND" H 12855 6427 50  0000 C CNN
F 2 "" H 12850 6600 50  0001 C CNN
F 3 "" H 12850 6600 50  0001 C CNN
	1    12850 6600
	1    0    0    -1  
$EndComp
Wire Wire Line
	12750 6450 12850 6450
Wire Wire Line
	12850 6450 12850 6600
Connection ~ 12750 6450
Wire Wire Line
	12750 6450 12750 6500
Wire Wire Line
	15150 6400 15250 6400
Wire Wire Line
	15250 6400 15250 6450
Wire Wire Line
	15250 6500 15150 6500
$Comp
L power:GND #PWR0246
U 1 1 6090D358
P 15350 6600
F 0 "#PWR0246" H 15350 6350 50  0001 C CNN
F 1 "GND" H 15355 6427 50  0000 C CNN
F 2 "" H 15350 6600 50  0001 C CNN
F 3 "" H 15350 6600 50  0001 C CNN
	1    15350 6600
	1    0    0    -1  
$EndComp
Wire Wire Line
	15250 6450 15350 6450
Wire Wire Line
	15350 6450 15350 6600
Connection ~ 15250 6450
Wire Wire Line
	15250 6450 15250 6500
Wire Wire Line
	12650 8550 12750 8550
Wire Wire Line
	12750 8550 12750 8600
Wire Wire Line
	12750 8650 12650 8650
$Comp
L power:GND #PWR0247
U 1 1 6093520C
P 12850 8750
F 0 "#PWR0247" H 12850 8500 50  0001 C CNN
F 1 "GND" H 12855 8577 50  0000 C CNN
F 2 "" H 12850 8750 50  0001 C CNN
F 3 "" H 12850 8750 50  0001 C CNN
	1    12850 8750
	1    0    0    -1  
$EndComp
Wire Wire Line
	12750 8600 12850 8600
Wire Wire Line
	12850 8600 12850 8750
Connection ~ 12750 8600
Wire Wire Line
	12750 8600 12750 8650
Wire Wire Line
	15150 8550 15250 8550
Wire Wire Line
	15250 8550 15250 8600
Wire Wire Line
	15250 8650 15150 8650
$Comp
L power:GND #PWR0248
U 1 1 6095DEA2
P 15350 8750
F 0 "#PWR0248" H 15350 8500 50  0001 C CNN
F 1 "GND" H 15355 8577 50  0000 C CNN
F 2 "" H 15350 8750 50  0001 C CNN
F 3 "" H 15350 8750 50  0001 C CNN
	1    15350 8750
	1    0    0    -1  
$EndComp
Wire Wire Line
	15250 8600 15350 8600
Wire Wire Line
	15350 8600 15350 8750
Connection ~ 15250 8600
Wire Wire Line
	15250 8600 15250 8650
Wire Bus Line
	9650 1200 9650 8550
Wire Bus Line
	11350 1200 11350 8550
Wire Bus Line
	13850 1200 13850 8550
$EndSCHEMATC