video-timing.sch

EESchema Schematic File Version 2
LIBS:mals_library
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:valves
LIBS:Super 80 Reproduction-cache
EELAYER 27 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 5 7
Title "Super 80 Reproduction"
Date "10 oct 2016"
Rev "0.1"
Comp "Malcolm Macleod"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 74HCT04 U39
U 5 1 55A96FEE
P 1950 9550
F 0 "U39" H 2100 9800 50  0000 C CNN
F 1 "74LS04" H 2100 9700 50  0000 C CNN
F 2 "~" H 1950 9550 60  0000 C CNN
F 3 "~" H 1950 9550 60  0000 C CNN
	5    1950 9550
	1    0    0    -1  
$EndComp
$Comp
L 74HCT04 U39
U 4 1 55A97030
P 2850 9550
F 0 "U39" H 3000 9800 50  0000 C CNN
F 1 "74LS04" H 3000 9700 50  0000 C CNN
F 2 "~" H 2850 9550 60  0000 C CNN
F 3 "~" H 2850 9550 60  0000 C CNN
	4    2850 9550
	1    0    0    -1  
$EndComp
$Comp
L 74HCT04 U39
U 6 1 55A97048
P 2850 10100
F 0 "U39" H 3000 10350 50  0000 C CNN
F 1 "74LS04" H 3000 10250 50  0000 C CNN
F 2 "~" H 2850 10100 60  0000 C CNN
F 3 "~" H 2850 10100 60  0000 C CNN
	6    2850 10100
	1    0    0    -1  
$EndComp
$Comp
L R R65
U 1 1 55A97067
P 1950 9050
F 0 "R65" V 2150 9050 50  0000 C CNN
F 1 "1K" V 2050 9050 50  0000 C CNN
F 2 "~" H 1950 9050 50  0000 C CNN
F 3 "~" H 1950 9050 60  0000 C CNN
	1    1950 9050
	0    -1   -1   0   
$EndComp
$Comp
L R R64
U 1 1 55A97076
P 2850 9050
F 0 "R64" V 3050 9050 50  0000 C CNN
F 1 "1K" V 2950 9050 50  0000 C CNN
F 2 "~" H 2850 9050 50  0000 C CNN
F 3 "~" H 2850 9050 60  0000 C CNN
	1    2850 9050
	0    -1   -1   0   
$EndComp
$Comp
L CRYSTAL XTAL1
U 1 1 55A973A3
P 2350 8550
F 0 "XTAL1" H 2350 8800 50  0000 C CNN
F 1 "12MHz" H 2350 8700 50  0000 C CNN
F 2 "~" H 2350 8550 60  0000 C CNN
F 3 "~" H 2350 8550 60  0000 C CNN
	1    2350 8550
	1    0    0    -1  
$EndComp
Wire Wire Line
	1500 8550 1500 9550
Wire Wire Line
	1500 8550 2050 8550
Connection ~ 1500 9050
Wire Wire Line
	3300 8550 3300 9550
Wire Wire Line
	2650 8550 3300 8550
Connection ~ 3300 9050
Wire Wire Line
	3100 9050 3300 9050
Wire Wire Line
	1700 9050 1500 9050
Wire Wire Line
	2200 9050 2600 9050
Wire Wire Line
	2400 9050 2400 10100
Connection ~ 2400 9050
Connection ~ 2400 9550
Connection ~ 2400 10100
Wire Wire Line
	3300 10100 3800 10100
Wire Wire Line
	3700 9000 3700 10100
Wire Wire Line
	3700 9000 3800 9000
Text GLabel 3800 9000 2    50   Output ~ 0
12MHz
$Comp
L S80-74LS93 U45
U 1 1 55A9895B
P 4450 10100
F 0 "U45" H 3850 9900 50  0000 C CNN
F 1 "74LS93" H 3850 9800 50  0000 C CNN
F 2 "~" H 4500 10000 60  0000 C CNN
F 3 "~" H 4500 10000 60  0000 C CNN
	1    4450 10100
	1    0    0    -1  
$EndComp
Connection ~ 3700 10100
$Comp
L S80-74LS93 U40
U 1 1 55A98997
P 5950 10100
F 0 "U40" H 5350 9900 50  0000 C CNN
F 1 "74LS93" H 5350 9800 50  0000 C CNN
F 2 "~" H 6000 10000 60  0000 C CNN
F 3 "~" H 6000 10000 60  0000 C CNN
	1    5950 10100
	1    0    0    -1  
$EndComp
$Comp
L S80-74LS92 U36
U 1 1 55A98CB9
P 7200 10100
F 0 "U36" H 6600 9900 50  0000 C CNN
F 1 "74LS92" H 6600 9800 50  0000 C CNN
F 2 "~" H 7250 10000 60  0000 C CNN
F 3 "~" H 7250 10000 60  0000 C CNN
	1    7200 10100
	1    0    0    -1  
$EndComp
Wire Wire Line
	6250 3700 6250 9550
Wire Wire Line
	6250 9400 7100 9400
Wire Wire Line
	7100 9400 7100 9550
Wire Wire Line
	7400 9300 7400 9550
Wire Wire Line
	6550 9300 6550 10100
$Comp
L S80-74LS90 U31
U 1 1 55A99591
P 8450 10100
F 0 "U31" H 7850 9900 50  0000 C CNN
F 1 "74LS90" H 7850 9800 50  0000 C CNN
F 2 "~" H 8500 10000 60  0000 C CNN
F 3 "~" H 8500 10000 60  0000 C CNN
	1    8450 10100
	1    0    0    -1  
$EndComp
$Comp
L S80-74LS93 U29
U 1 1 55A995C6
P 9700 10100
F 0 "U29" H 9100 9900 50  0000 C CNN
F 1 "74LS93" H 9100 9800 50  0000 C CNN
F 2 "~" H 9750 10000 60  0000 C CNN
F 3 "~" H 9750 10000 60  0000 C CNN
	1    9700 10100
	1    0    0    -1  
$EndComp
$Comp
L 74HCT04 U39
U 3 1 55A99B10
P 7400 8650
F 0 "U39" V 7550 8900 50  0000 C CNN
F 1 "74LS04" V 7450 8900 50  0000 C CNN
F 2 "~" H 7400 8650 60  0000 C CNN
F 3 "~" H 7400 8650 60  0000 C CNN
	3    7400 8650
	0    -1   -1   0   
$EndComp
$Comp
L 74HCT04 U15
U 6 1 55A99B5F
P 5300 9200
F 0 "U15" H 5450 9450 50  0000 C CNN
F 1 "74LS04" H 5450 9350 50  0000 C CNN
F 2 "~" H 5300 9200 60  0000 C CNN
F 3 "~" H 5300 9200 60  0000 C CNN
	6    5300 9200
	1    0    0    -1  
$EndComp
Wire Wire Line
	4750 9450 5850 9450
Wire Wire Line
	5850 9450 5850 9550
Wire Wire Line
	4850 9200 3700 9200
Connection ~ 3700 9200
Wire Wire Line
	4350 9450 4150 9450
Wire Wire Line
	4350 5350 4350 9550
$Comp
L S80-74LS20 U50
U 2 1 55A9A530
P 5400 8100
F 0 "U50" H 5400 8500 50  0000 C CNN
F 1 "74LS20" H 5400 8400 50  0000 C CNN
F 2 "~" H 5400 8100 60  0000 C CNN
F 3 "~" H 5400 8100 60  0000 C CNN
	2    5400 8100
	1    0    0    -1  
$EndComp
Connection ~ 4750 9450
Wire Wire Line
	4650 4400 4650 9550
Wire Wire Line
	4550 4300 4550 9550
$Comp
L 74HCT04 U15
U 1 1 55A9A5DC
P 4350 4900
F 0 "U15" V 4600 5200 50  0000 C CNN
F 1 "74LS04" V 4500 5200 50  0000 C CNN
F 2 "~" H 4350 4900 60  0000 C CNN
F 3 "~" H 4350 4900 60  0000 C CNN
	1    4350 4900
	0    -1   -1   0   
$EndComp
$Comp
L 74LS86 U30
U 3 1 55A9AF27
P 7000 7400
F 0 "U30" V 7450 7600 50  0000 C CNN
F 1 "74LS86" V 7350 7600 50  0000 C CNN
F 2 "~" H 7000 7400 60  0000 C CNN
F 3 "~" H 7000 7400 60  0000 C CNN
	3    7000 7400
	0    1    -1   0   
$EndComp
$Comp
L 74LS86 U30
U 4 1 55A9AF9C
P 7750 7400
F 0 "U30" V 8200 7600 50  0000 C CNN
F 1 "74LS86" V 8100 7600 50  0000 C CNN
F 2 "~" H 7750 7400 60  0000 C CNN
F 3 "~" H 7750 7400 60  0000 C CNN
	4    7750 7400
	0    1    -1   0   
$EndComp
Wire Wire Line
	7300 9550 7300 9400
Connection ~ 7400 9300
$Comp
L 74HCT04 U39
U 1 1 55A9B1E2
P 7750 6350
F 0 "U39" V 7950 6150 50  0000 C CNN
F 1 "74LS04" V 7850 6150 50  0000 C CNN
F 2 "~" H 7750 6350 60  0000 C CNN
F 3 "~" H 7750 6350 60  0000 C CNN
	1    7750 6350
	0    -1   -1   0   
$EndComp
Wire Wire Line
	6900 9550 6900 9500
Wire Wire Line
	6900 9500 8350 9500
Wire Wire Line
	8350 2500 8350 9550
$Comp
L 74HCT04 U39
U 2 1 55A9CD44
P 8950 8650
F 0 "U39" V 9100 8400 50  0000 C CNN
F 1 "74LS04" V 9000 8400 50  0000 C CNN
F 2 "~" H 8950 8650 60  0000 C CNN
F 3 "~" H 8950 8650 60  0000 C CNN
	2    8950 8650
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7800 10100 7750 10100
$Comp
L 74LS86 U30
U 1 1 55A9CDE9
P 10400 7650
F 0 "U30" V 10800 7900 50  0000 C CNN
F 1 "74LS86" V 10700 7900 50  0000 C CNN
F 2 "~" H 10400 7650 60  0000 C CNN
F 3 "~" H 10400 7650 60  0000 C CNN
	1    10400 7650
	0    1    -1   0   
$EndComp
Wire Wire Line
	9900 8350 9900 9550
Wire Wire Line
	10000 2900 10000 9550
Wire Wire Line
	9400 9550 9400 9450
Wire Wire Line
	9400 9450 9600 9450
Wire Wire Line
	9600 3100 9600 9550
Wire Wire Line
	9800 3000 9800 9550
Connection ~ 9600 9450
Wire Wire Line
	8150 3400 8150 9550
Wire Wire Line
	8150 9400 9050 9400
Wire Wire Line
	9050 9400 9050 10100
Connection ~ 8150 9400
Wire Wire Line
	7650 8000 7650 10950
Wire Wire Line
	6550 9300 7650 9300
Wire Wire Line
	7300 9400 7850 9400
$Comp
L 74LS00 U28
U 1 1 55A9D1DE
P 7650 5200
F 0 "U28" V 8150 5400 50  0000 C CNN
F 1 "74LS00" V 8050 5400 50  0000 C CNN
F 2 "~" H 7650 5200 60  0000 C CNN
F 3 "~" H 7650 5200 60  0000 C CNN
	1    7650 5200
	0    1    -1   0   
$EndComp
$Comp
L 74LS00 U28
U 4 1 55A9D20C
P 12350 6850
F 0 "U28" H 12350 7250 50  0000 C CNN
F 1 "74LS00" H 12350 7150 50  0000 C CNN
F 2 "~" H 12350 6850 60  0000 C CNN
F 3 "~" H 12350 6850 60  0000 C CNN
	4    12350 6850
	1    0    0    -1  
$EndComp
Text GLabel 11750 6950 0    50   Input ~ 0
VDU-ENABLE
Wire Wire Line
	10400 6750 11750 6750
$Comp
L S80-U35-74LS30 U35
U 1 1 55A9DCD0
P 11100 4350
F 0 "U35" H 11400 4700 50  0000 C CNN
F 1 "74LS30" H 11400 4600 50  0000 C CNN
F 2 "~" H 11100 4350 60  0000 C CNN
F 3 "~" H 11100 4350 60  0000 C CNN
	1    11100 4350
	1    0    0    -1  
$EndComp
Wire Wire Line
	7500 9100 7500 9550
Wire Wire Line
	4750 5850 4750 9550
Wire Wire Line
	7650 10950 11150 10950
Wire Wire Line
	11150 10950 11150 9850
Connection ~ 7650 9300
Text Notes 12150 9850 2    50   ~ 0
LINE TIME
Wire Wire Line
	7750 10100 7750 9300
Wire Wire Line
	7750 9300 8950 9300
Wire Wire Line
	5750 9200 9400 9200
Wire Wire Line
	6050 9550 6050 3900
Wire Wire Line
	6050 3900 3450 3900
Wire Wire Line
	3450 3900 3450 2500
Wire Wire Line
	6150 9550 6150 3800
Wire Wire Line
	6150 3800 3550 3800
Wire Wire Line
	3550 3800 3550 2500
Wire Wire Line
	6250 3700 3650 3700
Wire Wire Line
	3650 3700 3650 2500
Connection ~ 6250 9400
Wire Wire Line
	6350 8200 6350 3500
Wire Wire Line
	6350 3500 3850 3500
Wire Wire Line
	3850 3500 3850 2500
Wire Wire Line
	7000 3600 3750 3600
Wire Wire Line
	3750 3600 3750 2500
Wire Wire Line
	8150 3400 3950 3400
Wire Wire Line
	3950 3400 3950 2500
Wire Wire Line
	8750 9300 8750 9550
Connection ~ 8350 9500
Wire Wire Line
	8550 9550 8550 2500
Wire Wire Line
	8650 9550 8650 2800
Wire Wire Line
	8950 9300 8950 9100
$Comp
L GND #PWR040
U 1 1 55AA1283
P 4350 10650
F 0 "#PWR040" H 4350 10650 30  0001 C CNN
F 1 "GND" H 4350 10580 30  0001 C CNN
F 2 "~" H 4350 10650 60  0000 C CNN
F 3 "~" H 4350 10650 60  0000 C CNN
	1    4350 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR041
U 1 1 55AA1294
P 4550 10650
F 0 "#PWR041" H 4550 10650 30  0001 C CNN
F 1 "GND" H 4550 10580 30  0001 C CNN
F 2 "~" H 4550 10650 60  0000 C CNN
F 3 "~" H 4550 10650 60  0000 C CNN
	1    4550 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR042
U 1 1 55AA129A
P 7100 10650
F 0 "#PWR042" H 7100 10650 30  0001 C CNN
F 1 "GND" H 7100 10580 30  0001 C CNN
F 2 "~" H 7100 10650 60  0000 C CNN
F 3 "~" H 7100 10650 60  0000 C CNN
	1    7100 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR043
U 1 1 55AA12A0
P 5850 10650
F 0 "#PWR043" H 5850 10650 30  0001 C CNN
F 1 "GND" H 5850 10580 30  0001 C CNN
F 2 "~" H 5850 10650 60  0000 C CNN
F 3 "~" H 5850 10650 60  0000 C CNN
	1    5850 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR044
U 1 1 55AA12A6
P 6050 10650
F 0 "#PWR044" H 6050 10650 30  0001 C CNN
F 1 "GND" H 6050 10580 30  0001 C CNN
F 2 "~" H 6050 10650 60  0000 C CNN
F 3 "~" H 6050 10650 60  0000 C CNN
	1    6050 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR045
U 1 1 55AA12B6
P 7300 10650
F 0 "#PWR045" H 7300 10650 30  0001 C CNN
F 1 "GND" H 7300 10580 30  0001 C CNN
F 2 "~" H 7300 10650 60  0000 C CNN
F 3 "~" H 7300 10650 60  0000 C CNN
	1    7300 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR046
U 1 1 55AA12BC
P 8350 10650
F 0 "#PWR046" H 8350 10650 30  0001 C CNN
F 1 "GND" H 8350 10580 30  0001 C CNN
F 2 "~" H 8350 10650 60  0000 C CNN
F 3 "~" H 8350 10650 60  0000 C CNN
	1    8350 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR047
U 1 1 55AA12C2
P 8550 10650
F 0 "#PWR047" H 8550 10650 30  0001 C CNN
F 1 "GND" H 8550 10580 30  0001 C CNN
F 2 "~" H 8550 10650 60  0000 C CNN
F 3 "~" H 8550 10650 60  0000 C CNN
	1    8550 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR048
U 1 1 55AA12C8
P 9600 10650
F 0 "#PWR048" H 9600 10650 30  0001 C CNN
F 1 "GND" H 9600 10580 30  0001 C CNN
F 2 "~" H 9600 10650 60  0000 C CNN
F 3 "~" H 9600 10650 60  0000 C CNN
	1    9600 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR049
U 1 1 55AA12CE
P 9800 10650
F 0 "#PWR049" H 9800 10650 30  0001 C CNN
F 1 "GND" H 9800 10580 30  0001 C CNN
F 2 "~" H 9800 10650 60  0000 C CNN
F 3 "~" H 9800 10650 60  0000 C CNN
	1    9800 10650
	1    0    0    -1  
$EndComp
Wire Wire Line
	6900 8000 6900 9300
Connection ~ 6900 9300
Wire Wire Line
	7400 8200 7100 8200
Wire Wire Line
	7100 8200 7100 8000
Wire Wire Line
	7500 9100 7400 9100
Wire Wire Line
	7400 8200 7400 6050
Wire Wire Line
	7850 9400 7850 8000
Wire Wire Line
	7750 5900 7750 5800
Wire Wire Line
	7400 6050 7550 6050
Wire Wire Line
	7550 6050 7550 5800
Wire Wire Line
	7000 3600 7000 6800
Wire Wire Line
	10500 4100 7650 4100
Wire Wire Line
	7650 4100 7650 4600
Wire Wire Line
	4350 4200 10500 4200
Wire Wire Line
	4550 4300 10500 4300
Wire Wire Line
	10500 4400 4650 4400
Wire Wire Line
	4750 5850 9100 5850
Wire Wire Line
	9100 5850 9100 4600
Wire Wire Line
	9100 4600 10500 4600
Wire Wire Line
	10500 4500 8950 4500
Wire Wire Line
	8950 4500 8950 8200
Wire Wire Line
	9200 8100 9200 6100
Wire Wire Line
	9400 9200 9400 5550
Wire Wire Line
	10400 4700 10500 4700
Text GLabel 12950 6850 2    50   Output ~ 0
BUSREQ*
Text Notes 12150 8450 2    50   ~ 0
FRM TIME
$Comp
L 74LS00 U28
U 3 1 55AA35EB
P 12050 3300
F 0 "U28" H 12300 3650 50  0000 C CNN
F 1 "74LS00" H 12300 3550 50  0000 C CNN
F 2 "~" H 12050 3300 60  0000 C CNN
F 3 "~" H 12050 3300 60  0000 C CNN
	3    12050 3300
	-1   0    0    -1  
$EndComp
Wire Wire Line
	10400 4200 10400 3700
Connection ~ 10400 4200
$Comp
L 74LS74 U76
U 1 1 55AA3B58
P 11650 5550
F 0 "U76" H 11950 6000 50  0000 C CNN
F 1 "74LS74" H 11950 5900 50  0000 C CNN
F 2 "~" H 11650 5550 60  0000 C CNN
F 3 "~" H 11650 5550 60  0000 C CNN
	1    11650 5550
	1    0    0    -1  
$EndComp
$Comp
L 74LS74 U76
U 2 1 55AA3B67
P 13300 5550
F 0 "U76" H 13600 6000 50  0000 C CNN
F 1 "74LS74" H 13600 5900 50  0000 C CNN
F 2 "~" H 13300 5550 60  0000 C CNN
F 3 "~" H 13300 5550 60  0000 C CNN
	2    13300 5550
	1    0    0    -1  
$EndComp
Connection ~ 11650 6100
Wire Wire Line
	10200 4300 10200 6300
Wire Wire Line
	12600 6300 12600 5550
Wire Wire Line
	12600 5550 12700 5550
Connection ~ 10200 4300
Wire Wire Line
	12250 5350 12700 5350
Wire Wire Line
	9400 5550 11050 5550
Wire Wire Line
	9200 6100 13300 6100
Wire Wire Line
	10200 6300 12600 6300
$Comp
L 74LS00 U28
U 2 1 55AA4141
P 14700 4400
F 0 "U28" H 14900 4100 50  0000 C CNN
F 1 "74LS00" H 14900 4000 50  0000 C CNN
F 2 "~" H 14700 4400 60  0000 C CNN
F 3 "~" H 14700 4400 60  0000 C CNN
	2    14700 4400
	1    0    0    -1  
$EndComp
Wire Wire Line
	14000 5350 14000 4500
Wire Wire Line
	14000 4500 14100 4500
Wire Wire Line
	14000 5350 13900 5350
Text GLabel 15300 4400 2    50   Output ~ 0
MREQ2*
Wire Wire Line
	9500 3850 14000 3850
Wire Wire Line
	10200 3850 10200 4000
Wire Wire Line
	10200 4000 10500 4000
Wire Wire Line
	14000 3850 14000 4300
Wire Wire Line
	14000 4300 14100 4300
Connection ~ 10200 3850
Wire Wire Line
	4750 7950 4800 7950
Connection ~ 4750 7950
Wire Wire Line
	4650 8050 4800 8050
Connection ~ 4650 8050
Wire Wire Line
	4550 8150 4800 8150
Connection ~ 4550 8150
Wire Wire Line
	9200 8100 6000 8100
Wire Wire Line
	6350 8200 6900 8200
Connection ~ 6900 8200
$Comp
L GND #PWR050
U 1 1 55AA6C63
P 8150 10650
F 0 "#PWR050" H 8150 10650 30  0001 C CNN
F 1 "GND" H 8150 10580 30  0001 C CNN
F 2 "~" H 8150 10650 60  0000 C CNN
F 3 "~" H 8150 10650 60  0000 C CNN
	1    8150 10650
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR051
U 1 1 55AA6C69
P 8750 10650
F 0 "#PWR051" H 8750 10650 30  0001 C CNN
F 1 "GND" H 8750 10580 30  0001 C CNN
F 2 "~" H 8750 10650 60  0000 C CNN
F 3 "~" H 8750 10650 60  0000 C CNN
	1    8750 10650
	1    0    0    -1  
$EndComp
Connection ~ 7400 8200
$Comp
L S80-U38-74LS367 U38
U 1 1 55AA7E70
P 3700 1900
F 0 "U38" H 3100 2300 50  0000 C CNN
F 1 "74LS367" H 3100 2200 50  0000 C CNN
F 2 "~" H 3800 2050 60  0000 C CNN
F 3 "~" H 3800 2050 60  0000 C CNN
	1    3700 1900
	1    0    0    -1  
$EndComp
$Comp
L S80-U43-74LS367 U43
U 1 1 55AA88B2
P 5100 1900
F 0 "U43" H 4500 2300 50  0000 C CNN
F 1 "74LS367" H 4500 2200 50  0000 C CNN
F 2 "~" H 5200 2050 60  0000 C CNN
F 3 "~" H 5200 2050 60  0000 C CNN
	1    5100 1900
	1    0    0    -1  
$EndComp
$Comp
L S80-U34-74LS374 U34
U 1 1 55AA9C7E
P 6350 1900
F 0 "U34" H 7000 2300 50  0000 C CNN
F 1 "74LS374" H 7000 2200 50  0000 C CNN
F 2 "~" H 6350 1900 60  0000 C CNN
F 3 "~" H 6350 1900 60  0000 C CNN
	1    6350 1900
	1    0    0    -1  
$EndComp
$Comp
L S80-2513 U27
U 1 1 55AAB793
P 8650 1800
F 0 "U27" H 9150 2400 50  0000 C CNN
F 1 "2513" H 9150 2300 50  0000 C CNN
F 2 "" H 8650 1450 60  0000 C CNN
F 3 "" H 8650 1450 60  0000 C CNN
	1    8650 1800
	1    0    0    -1  
$EndComp
$Comp
L S80-U23-74LS165 U23
U 1 1 55AAE529
P 10300 1800
F 0 "U23" H 10700 2350 50  0000 C CNN
F 1 "74LS165" H 10700 2250 50  0000 C CNN
F 2 "~" H 10350 1650 60  0000 C CNN
F 3 "~" H 10350 1650 60  0000 C CNN
	1    10300 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	7050 1850 7550 1850
Wire Wire Line
	7550 3850 8600 3850
Text GLabel 7050 700  0    50   Input ~ 0
BUSAK*
Wire Wire Line
	13000 4350 11700 4350
Wire Wire Line
	13000 2850 13000 4350
Wire Wire Line
	13000 3200 12650 3200
Wire Wire Line
	13000 2850 10400 2850
Connection ~ 13000 3200
Wire Wire Line
	10400 3700 12650 3700
Wire Wire Line
	12650 3700 12650 3400
$Comp
L 74HCT04 U22
U 1 1 55AAEDF2
P 11000 3300
F 0 "U22" H 11150 3550 50  0000 C CNN
F 1 "74LS04" H 11150 3450 50  0000 C CNN
F 2 "~" H 11000 3300 60  0000 C CNN
F 3 "~" H 11000 3300 60  0000 C CNN
	1    11000 3300
	-1   0    0    -1  
$EndComp
Wire Wire Line
	10200 3300 10550 3300
Text Label 6000 2600 1    50   ~ 0
D1
Text Label 6100 2600 1    50   ~ 0
D2
Text Label 6200 2600 1    50   ~ 0
D3
Text Label 6300 2600 1    50   ~ 0
D4
Text Label 6400 2600 1    50   ~ 0
D5
Text Label 6500 2600 1    50   ~ 0
D6
Text Label 6600 2600 1    50   ~ 0
D7
Entry Bus Bus
	6000 2600 6100 2700
Entry Bus Bus
	6100 2600 6200 2700
Entry Bus Bus
	6200 2600 6300 2700
Entry Bus Bus
	6300 2600 6400 2700
Entry Bus Bus
	6400 2600 6500 2700
Entry Bus Bus
	6500 2600 6600 2700
Entry Bus Bus
	6600 2600 6700 2700
Wire Wire Line
	6000 2600 6000 2500
Wire Wire Line
	6100 2500 6100 2600
Wire Wire Line
	6200 2600 6200 2500
Wire Wire Line
	6300 2500 6300 2600
Wire Wire Line
	6400 2600 6400 2500
Wire Wire Line
	6500 2500 6500 2600
Wire Wire Line
	6600 2600 6600 2500
Wire Bus Line
	7750 2700 6100 2700
Wire Bus Line
	7750 1050 7750 2700
Wire Wire Line
	5050 2500 5050 2900
Wire Wire Line
	4950 3000 4950 2500
Wire Wire Line
	4850 2500 4850 3100
Wire Wire Line
	4850 3100 9600 3100
Wire Wire Line
	9800 3000 4950 3000
Wire Wire Line
	5050 2900 10000 2900
Wire Wire Line
	7550 2800 3100 2800
Wire Wire Line
	4500 1850 4500 2800
Wire Wire Line
	3100 2800 3100 1850
Connection ~ 4500 2800
Connection ~ 3100 1950
Wire Wire Line
	7550 700  7550 3850
Connection ~ 7550 2800
Connection ~ 7550 1850
$Comp
L 74HCT04 U22
U 2 1 55AB0274
P 7300 1300
F 0 "U22" V 7000 1600 50  0000 C CNN
F 1 "74LS04" V 7100 1600 50  0000 C CNN
F 2 "~" H 7300 1300 60  0000 C CNN
F 3 "~" H 7300 1300 60  0000 C CNN
	2    7300 1300
	0    -1   1    0   
$EndComp
Wire Wire Line
	7050 700  7550 700 
Wire Wire Line
	7300 1750 7300 1950
Wire Wire Line
	7300 1950 7050 1950
Text GLabel 7150 850  0    50   Input ~ 0
VDUCONF*
Wire Wire Line
	7150 850  7300 850 
Wire Wire Line
	10200 2500 10200 3300
Wire Wire Line
	10400 2850 10400 2500
Wire Wire Line
	8650 2800 8750 2800
Wire Wire Line
	8750 2800 8750 2500
$Comp
L GND #PWR052
U 1 1 55AB144C
P 8950 2500
F 0 "#PWR052" H 8950 2500 30  0001 C CNN
F 1 "GND" H 8950 2430 30  0001 C CNN
F 2 "~" H 8950 2500 60  0000 C CNN
F 3 "~" H 8950 2500 60  0000 C CNN
	1    8950 2500
	1    0    0    -1  
$EndComp
Wire Wire Line
	9350 1450 9650 1450
Wire Wire Line
	9650 1550 9350 1550
Wire Wire Line
	9350 1650 9650 1650
Wire Wire Line
	9350 1750 9650 1750
Wire Wire Line
	9350 1850 9650 1850
$Comp
L GND #PWR053
U 1 1 55AB183A
P 9650 2250
F 0 "#PWR053" H 9650 2250 30  0001 C CNN
F 1 "GND" H 9650 2180 30  0001 C CNN
F 2 "~" H 9650 2250 60  0000 C CNN
F 3 "~" H 9650 2250 60  0000 C CNN
	1    9650 2250
	1    0    0    -1  
$EndComp
Wire Wire Line
	9650 1950 9650 2250
Connection ~ 9650 2150
Connection ~ 9650 2050
Text Label 3450 1300 1    50   ~ 0
A0
Text Label 3550 1300 1    50   ~ 0
A1
Text Label 3650 1300 1    50   ~ 0
A2
Text Label 3750 1300 1    50   ~ 0
A3
Text Label 3850 1300 1    50   ~ 0
A4
Text Label 3950 1300 1    50   ~ 0
A5
Text Label 4850 1300 1    50   ~ 0
A6
Text Label 4950 1300 1    50   ~ 0
A7
Text Label 5050 1300 1    50   ~ 0
A8
Entry Bus Bus
	3350 1050 3450 1150
Entry Bus Bus
	3450 1050 3550 1150
Entry Bus Bus
	3550 1050 3650 1150
Entry Bus Bus
	3650 1050 3750 1150
Entry Bus Bus
	3750 1050 3850 1150
Entry Bus Bus
	3850 1050 3950 1150
Entry Bus Bus
	4750 1050 4850 1150
Entry Bus Bus
	4850 1050 4950 1150
Entry Bus Bus
	4950 1050 5050 1150
Wire Wire Line
	5050 1300 5050 1150
Wire Wire Line
	4950 1300 4950 1150
Wire Wire Line
	4850 1300 4850 1150
Wire Wire Line
	3450 1300 3450 1150
Wire Wire Line
	3550 1300 3550 1150
Wire Wire Line
	3650 1300 3650 1150
Wire Wire Line
	3750 1300 3750 1150
Wire Wire Line
	3850 1300 3850 1150
Wire Wire Line
	3950 1300 3950 1150
Text GLabel 3150 1050 0    50   BiDi ~ 0
A[0..15]
Text Label 6000 1300 1    50   ~ 0
A9
Text Label 6100 1300 1    50   ~ 0
A10
Text Label 6200 1300 1    50   ~ 0
A11
Text Label 6300 1300 1    50   ~ 0
A12
Text Label 6400 1300 1    50   ~ 0
A13
Text Label 6500 1300 1    50   ~ 0
A14
Entry Bus Bus
	5900 1050 6000 1150
Entry Bus Bus
	6000 1050 6100 1150
Entry Bus Bus
	6100 1050 6200 1150
Entry Bus Bus
	6200 1050 6300 1150
Entry Bus Bus
	6300 1050 6400 1150
Entry Bus Bus
	6400 1050 6500 1150
Wire Wire Line
	6000 1300 6000 1150
Wire Wire Line
	6100 1300 6100 1150
Wire Wire Line
	6200 1300 6200 1150
Wire Wire Line
	6300 1300 6300 1150
Wire Wire Line
	6400 1300 6400 1150
Wire Wire Line
	6500 1300 6500 1150
Text Label 6600 1300 1    50   ~ 0
A15
Entry Bus Bus
	6500 1050 6600 1150
Wire Wire Line
	6600 1300 6600 1150
Text Label 7850 1450 0    50   ~ 0
D5
Text Label 7850 1550 0    50   ~ 0
D4
Text Label 7850 1650 0    50   ~ 0
D3
Text Label 7850 1750 0    50   ~ 0
D2
Text Label 7850 1850 0    50   ~ 0
D1
Text Label 7850 1950 0    50   ~ 0
D0
Entry Bus Bus
	7750 1350 7850 1450
Entry Bus Bus
	7750 1450 7850 1550
Entry Bus Bus
	7750 1550 7850 1650
Entry Bus Bus
	7750 1650 7850 1750
Entry Bus Bus
	7750 1750 7850 1850
Entry Bus Bus
	7750 1850 7850 1950
Wire Wire Line
	7850 1450 7950 1450
Wire Wire Line
	7950 1550 7850 1550
Wire Wire Line
	7850 1650 7950 1650
Wire Wire Line
	7950 1750 7850 1750
Wire Wire Line
	7850 1850 7950 1850
Wire Wire Line
	7950 1950 7850 1950
Text GLabel 7950 1050 2    50   Input ~ 0
D[0..7]
Wire Bus Line
	7750 1050 7950 1050
$Comp
L 74LS14 U16
U 4 1 55AB4A24
P 9050 3850
F 0 "U16" H 9200 4100 50  0000 C CNN
F 1 "74LS14" H 9200 4000 50  0000 C CNN
F 2 "~" H 9050 3850 60  0000 C CNN
F 3 "~" H 9050 3850 60  0000 C CNN
	4    9050 3850
	1    0    0    -1  
$EndComp
Wire Bus Line
	3150 1050 6500 1050
$Comp
L DIODE CR10
U 1 1 55AB3D26
P 11600 1550
F 0 "CR10" H 11650 1750 50  0000 C CNN
F 1 "1N914" H 11650 1650 50  0000 C CNN
F 2 "~" H 11500 1550 50  0000 C CNN
F 3 "~" H 11600 1550 60  0000 C CNN
	1    11600 1550
	1    0    0    -1  
$EndComp
$Comp
L R R31
U 1 1 55AB3D35
P 11400 1300
F 0 "R31" H 11250 1350 50  0000 C CNN
F 1 "330R" H 11250 1250 50  0000 C CNN
F 2 "~" H 11400 1300 50  0000 C CNN
F 3 "~" H 11400 1300 60  0000 C CNN
	1    11400 1300
	1    0    0    -1  
$EndComp
$Comp
L R R70
U 1 1 55AB3D5B
P 12050 1550
F 0 "R70" V 12250 1550 50  0000 C CNN
F 1 "3.3K" V 12150 1550 50  0000 C CNN
F 2 "~" H 12050 1550 50  0000 C CNN
F 3 "~" H 12050 1550 60  0000 C CNN
	1    12050 1550
	0    -1   -1   0   
$EndComp
$Comp
L R R33
U 1 1 55AB3D7A
P 12700 1300
F 0 "R33" H 12850 1250 50  0000 C CNN
F 1 "10K" H 12850 1350 50  0000 C CNN
F 2 "~" H 12700 1300 50  0000 C CNN
F 3 "~" H 12700 1300 60  0000 C CNN
	1    12700 1300
	-1   0    0    1   
$EndComp
$Comp
L R R32
U 1 1 55AB3D80
P 12700 1950
F 0 "R32" H 12550 2000 50  0000 C CNN
F 1 "3.3K" H 12550 1900 50  0000 C CNN
F 2 "~" H 12700 1950 50  0000 C CNN
F 3 "~" H 12700 1950 60  0000 C CNN
	1    12700 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	11000 1550 11400 1550
Wire Wire Line
	12300 1550 12900 1550
$Comp
L GND #PWR054
U 1 1 55AB3F76
P 12700 2300
F 0 "#PWR054" H 12700 2300 30  0001 C CNN
F 1 "GND" H 12700 2230 30  0001 C CNN
F 2 "~" H 12700 2300 60  0000 C CNN
F 3 "~" H 12700 2300 60  0000 C CNN
	1    12700 2300
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR055
U 1 1 55AB4592
P 13200 1050
F 0 "#PWR055" H 13205 1140 50  0001 C CNN
F 1 "+5V" H 13200 1140 50  0000 C CNN
F 2 "~" H 13200 1050 50  0000 C CNN
F 3 "~" H 13200 1050 60  0000 C CNN
	1    13200 1050
	1    0    0    -1  
$EndComp
$Comp
L BC237 Q1
U 1 1 55AB45A5
P 13100 1550
F 0 "Q1" H 13400 1750 50  0000 C CNN
F 1 "BC548" H 13400 1650 50  0000 C CNN
F 2 "TO92-EBC" H 13290 1550 30  0001 C CNN
F 3 "~" H 13100 1550 60  0000 C CNN
	1    13100 1550
	1    0    0    -1  
$EndComp
Wire Wire Line
	11400 1050 13200 1050
Wire Wire Line
	13200 1050 13200 1350
Connection ~ 12700 1550
Connection ~ 12700 1050
Connection ~ 11400 1550
$Comp
L R R34
U 1 1 55AB4A2E
P 13200 2050
F 0 "R34" H 13050 2100 50  0000 C CNN
F 1 "56R" H 13050 2000 50  0000 C CNN
F 2 "~" H 13200 2050 50  0000 C CNN
F 3 "~" H 13200 2050 60  0000 C CNN
	1    13200 2050
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR056
U 1 1 55AB4A3E
P 13200 2300
F 0 "#PWR056" H 13200 2300 30  0001 C CNN
F 1 "GND" H 13200 2230 30  0001 C CNN
F 2 "~" H 13200 2300 60  0000 C CNN
F 3 "~" H 13200 2300 60  0000 C CNN
	1    13200 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	12700 1550 12700 1700
Wire Wire Line
	12700 2200 12700 2300
Wire Wire Line
	12350 1550 12350 2700
Wire Wire Line
	15800 3450 15800 9850
Connection ~ 12350 1550
$Comp
L R R71
U 1 1 55AB4D10
P 14000 1300
F 0 "R71" H 14250 1450 50  0000 C CNN
F 1 "270R 1W ??" H 14300 1350 50  0000 C CNN
F 2 "~" H 14000 1300 50  0000 C CNN
F 3 "~" H 14000 1300 60  0000 C CNN
	1    14000 1300
	1    0    0    -1  
$EndComp
$Comp
L CAP_POLARISED C14
U 1 1 55AB4E0B
P 14000 2000
F 0 "C14" H 13700 2000 50  0000 L CNN
F 1 "25uF 25V" H 13600 1900 50  0000 L CNN
F 2 "~" H 13950 2000 50  0000 C CNN
F 3 "~" H 14000 2000 60  0000 C CNN
	1    14000 2000
	1    0    0    -1  
$EndComp
$Comp
L +16V #PWR057
U 1 1 55AB5A8E
P 14000 1050
F 0 "#PWR057" H 14005 1140 50  0001 C CNN
F 1 "+16V" H 14000 1140 50  0000 C CNN
F 2 "~" H 14000 1050 50  0000 C CNN
F 3 "~" H 14000 1050 60  0000 C CNN
	1    14000 1050
	1    0    0    -1  
$EndComp
Wire Wire Line
	13200 1750 14200 1750
Wire Wire Line
	13200 1800 13200 1750
Connection ~ 13200 1750
$Comp
L S80-UM1082AUS MOD1
U 1 1 55AB6BD3
P 14850 1650
F 0 "MOD1" H 14850 2250 50  0000 C CNN
F 1 "UM1082AUS" H 14850 2150 50  0000 C CNN
F 2 "~" H 14850 1500 60  0000 C CNN
F 3 "~" H 14850 1500 60  0000 C CNN
	1    14850 1650
	1    0    0    -1  
$EndComp
Wire Wire Line
	14000 1550 14000 1800
Wire Wire Line
	14000 1550 14200 1550
Connection ~ 14000 1550
$Comp
L GND #PWR058
U 1 1 55AB6E04
P 14000 2300
F 0 "#PWR058" H 14000 2300 30  0001 C CNN
F 1 "GND" H 14000 2230 30  0001 C CNN
F 2 "~" H 14000 2300 60  0000 C CNN
F 3 "~" H 14000 2300 60  0000 C CNN
	1    14000 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	14000 2300 14000 2200
$Comp
L GND #PWR059
U 1 1 55AB6F3F
P 14750 2300
F 0 "#PWR059" H 14750 2300 30  0001 C CNN
F 1 "GND" H 14750 2230 30  0001 C CNN
F 2 "~" H 14750 2300 60  0000 C CNN
F 3 "~" H 14750 2300 60  0000 C CNN
	1    14750 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	14750 2300 14750 2200
Text Notes 14550 1300 0    50   ~ 0
RF MODULATOR
$Comp
L CONN_2 J4
U 1 1 55AB70B7
P 15200 2900
F 0 "J4" H 15200 3250 50  0000 C CNN
F 1 "2 PIN HEADER" H 15200 3150 50  0000 C CNN
F 2 "~" H 15350 2850 50  0000 C CNN
F 3 "~" H 15200 2900 60  0000 C CNN
	1    15200 2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	15800 3450 13300 3450
Wire Wire Line
	12350 2700 13300 2700
Wire Wire Line
	13500 1750 13500 2800
Connection ~ 13500 1750
Wire Wire Line
	13300 2700 13300 3450
$Comp
L GND #PWR060
U 1 1 55AB7534
P 14750 3100
F 0 "#PWR060" H 14750 3100 30  0001 C CNN
F 1 "GND" H 14750 3030 30  0001 C CNN
F 2 "~" H 14750 3100 60  0000 C CNN
F 3 "~" H 14750 3100 60  0000 C CNN
	1    14750 3100
	1    0    0    -1  
$EndComp
Wire Wire Line
	14750 3100 14750 3000
Wire Wire Line
	14750 3000 14850 3000
Text Notes 14950 3200 0    50   ~ 0
VIDEO OUTPUT
$Comp
L GND #PWR061
U 1 1 55ABAA4B
P 11000 2150
F 0 "#PWR061" H 11000 2150 30  0001 C CNN
F 1 "GND" H 11000 2080 30  0001 C CNN
F 2 "~" H 11000 2150 60  0000 C CNN
F 3 "~" H 11000 2150 60  0000 C CNN
	1    11000 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	11000 1850 11000 2150
Connection ~ 11000 2050
$Comp
L DIODE CR12
U 1 1 55ABB2FE
P 15100 9850
F 0 "CR12" H 15100 10050 50  0000 C CNN
F 1 "1N914" H 15100 9950 50  0000 C CNN
F 2 "~" H 15000 9850 50  0000 C CNN
F 3 "~" H 15100 9850 60  0000 C CNN
	1    15100 9850
	-1   0    0    -1  
$EndComp
$Comp
L DIODE CR11
U 1 1 55ABB304
P 15100 8450
F 0 "CR11" H 15100 8650 50  0000 C CNN
F 1 "1N914" H 15100 8550 50  0000 C CNN
F 2 "~" H 15000 8450 50  0000 C CNN
F 3 "~" H 15100 8450 60  0000 C CNN
	1    15100 8450
	-1   0    0    -1  
$EndComp
$Comp
L R R29
U 1 1 55ABB30A
P 14700 9550
F 0 "R29" H 14550 9600 50  0000 C CNN
F 1 "33K" H 14550 9500 50  0000 C CNN
F 2 "~" H 14700 9550 50  0000 C CNN
F 3 "~" H 14700 9550 60  0000 C CNN
	1    14700 9550
	1    0    0    -1  
$EndComp
$Comp
L R R35
U 1 1 55ABB310
P 14700 10150
F 0 "R35" H 14550 10200 50  0000 C CNN
F 1 "15K" H 14550 10100 50  0000 C CNN
F 2 "~" H 14700 10150 50  0000 C CNN
F 3 "~" H 14700 10150 60  0000 C CNN
	1    14700 10150
	1    0    0    -1  
$EndComp
$Comp
L C C12
U 1 1 55ABB318
P 14300 9850
F 0 "C12" V 14600 9750 50  0000 L CNN
F 1 "68pF" V 14500 9750 50  0000 L CNN
F 2 "~" H 14250 9850 50  0000 C CNN
F 3 "~" H 14300 9850 60  0000 C CNN
	1    14300 9850
	0    1    -1   0   
$EndComp
$Comp
L R R28
U 1 1 55ABB3AC
P 13900 9550
F 0 "R28" H 13750 9600 50  0000 C CNN
F 1 "2.2K" H 13750 9500 50  0000 C CNN
F 2 "~" H 13900 9550 50  0000 C CNN
F 3 "~" H 13900 9550 60  0000 C CNN
	1    13900 9550
	1    0    0    -1  
$EndComp
$Comp
L R R46
U 1 1 55ABC048
P 13400 8750
F 0 "R46" H 13550 8700 50  0000 C CNN
F 1 "15K" H 13550 8800 50  0000 C CNN
F 2 "~" H 13400 8750 50  0000 C CNN
F 3 "~" H 13400 8750 60  0000 C CNN
	1    13400 8750
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR062
U 1 1 55ABC04E
P 14700 10400
F 0 "#PWR062" H 14700 10400 30  0001 C CNN
F 1 "GND" H 14700 10330 30  0001 C CNN
F 2 "~" H 14700 10400 60  0000 C CNN
F 3 "~" H 14700 10400 60  0000 C CNN
	1    14700 10400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR063
U 1 1 55ABC054
P 13400 9000
F 0 "#PWR063" H 13400 9000 30  0001 C CNN
F 1 "GND" H 13400 8930 30  0001 C CNN
F 2 "~" H 13400 9000 60  0000 C CNN
F 3 "~" H 13400 9000 60  0000 C CNN
	1    13400 9000
	1    0    0    -1  
$EndComp
Connection ~ 13900 9850
$Comp
L R R30
U 1 1 55ABC1EF
P 13400 8150
F 0 "R30" H 13250 8200 50  0000 C CNN
F 1 "33K" H 13250 8100 50  0000 C CNN
F 2 "~" H 13400 8150 50  0000 C CNN
F 3 "~" H 13400 8150 60  0000 C CNN
	1    13400 8150
	1    0    0    -1  
$EndComp
$Comp
L R R27
U 1 1 55ABC1FA
P 12600 8150
F 0 "R27" H 12450 8200 50  0000 C CNN
F 1 "2.2K" H 12450 8100 50  0000 C CNN
F 2 "~" H 12600 8150 50  0000 C CNN
F 3 "~" H 12600 8150 60  0000 C CNN
	1    12600 8150
	1    0    0    -1  
$EndComp
$Comp
L C C13
U 1 1 55ABC200
P 13000 8450
F 0 "C13" V 13300 8350 50  0000 L CNN
F 1 "0.01uF" V 13200 8300 50  0000 L CNN
F 2 "~" H 12950 8450 50  0000 C CNN
F 3 "~" H 13000 8450 60  0000 C CNN
	1    13000 8450
	0    1    -1   0   
$EndComp
Wire Wire Line
	15800 8450 15300 8450
Wire Wire Line
	15800 9850 15300 9850
Wire Wire Line
	14500 9850 14900 9850
Connection ~ 14700 9850
Wire Wire Line
	13200 8450 14900 8450
Connection ~ 13400 8450
$Comp
L +5V #PWR064
U 1 1 55ABCADF
P 13400 7800
F 0 "#PWR064" H 13405 7890 50  0001 C CNN
F 1 "+5V" H 13400 7890 50  0000 C CNN
F 2 "~" H 13400 7800 50  0000 C CNN
F 3 "~" H 13400 7800 60  0000 C CNN
	1    13400 7800
	1    0    0    -1  
$EndComp
Connection ~ 12600 8450
Wire Wire Line
	14700 9800 14700 9900
Wire Wire Line
	13900 9850 13900 9800
$Comp
L +5V #PWR065
U 1 1 55ABE19E
P 14700 9200
F 0 "#PWR065" H 14705 9290 50  0001 C CNN
F 1 "+5V" H 14700 9290 50  0000 C CNN
F 2 "~" H 14700 9200 50  0000 C CNN
F 3 "~" H 14700 9200 60  0000 C CNN
	1    14700 9200
	1    0    0    -1  
$EndComp
Wire Wire Line
	13900 9250 14700 9250
Connection ~ 14700 9250
Wire Wire Line
	13900 9300 13900 9250
Wire Wire Line
	14700 9200 14700 9300
Connection ~ 15800 8450
Connection ~ 10400 6750
Wire Wire Line
	10400 4700 10400 7050
Wire Wire Line
	10500 8250 10500 8450
Connection ~ 10500 8450
Connection ~ 10000 8450
Wire Wire Line
	10300 8250 10300 8350
Wire Wire Line
	10300 8350 9900 8350
Wire Wire Line
	12600 8450 12600 8400
Wire Wire Line
	13400 8400 13400 8500
Wire Wire Line
	12600 7900 12600 7850
Wire Wire Line
	12600 7850 13400 7850
Wire Wire Line
	13400 7800 13400 7900
Connection ~ 13400 7850
$Comp
L S80-74109 U44
U 1 1 55AC3E2D
P 1550 6350
F 0 "U44" H 1200 7050 50  0000 C CNN
F 1 "74109" H 1200 6950 50  0000 C CNN
F 2 "~" H 1550 6350 60  0000 C CNN
F 3 "~" H 1550 6350 60  0000 C CNN
	1    1550 6350
	1    0    0    -1  
$EndComp
Wire Wire Line
	13500 2800 14850 2800
Wire Wire Line
	10000 8450 12800 8450
Wire Wire Line
	11150 9850 14100 9850
Wire Wire Line
	750  6600 900  6600
Wire Wire Line
	750  6100 900  6100
Wire Wire Line
	750  5450 750  6600
Wire Wire Line
	900  6350 850  6350
Wire Wire Line
	850  6350 850  7650
Wire Wire Line
	850  7650 2650 7650
Wire Wire Line
	2200 6100 2600 6100
Wire Wire Line
	2400 5150 2700 5150
Text GLabel 2700 5150 2    50   Output ~ 0
CLK2
$Comp
L R R55
U 1 1 55AC4FE0
P 2300 4550
F 0 "R55" H 2100 4500 50  0000 C CNN
F 1 "330R" H 2100 4600 50  0000 C CNN
F 2 "~" H 2300 4550 50  0000 C CNN
F 3 "~" H 2300 4550 60  0000 C CNN
	1    2300 4550
	1    0    0    1   
$EndComp
Wire Wire Line
	2300 4800 2300 6600
$Comp
L +5V #PWR066
U 1 1 55AC511B
P 2300 4250
F 0 "#PWR066" H 2305 4340 50  0001 C CNN
F 1 "+5V" H 2300 4340 50  0000 C CNN
F 2 "~" H 2300 4250 50  0000 C CNN
F 3 "~" H 2300 4250 60  0000 C CNN
	1    2300 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	2300 4250 2300 4300
Text GLabel 2700 4950 2    50   Output ~ 0
CLK
Wire Wire Line
	2700 4950 2300 4950
Connection ~ 2300 4950
Wire Wire Line
	750  5450 4100 5450
Connection ~ 750  6100
Wire Wire Line
	4350 4200 4350 4450
Connection ~ 4350 9450
Wire Wire Line
	4800 8250 4350 8250
Connection ~ 4350 8250
Wire Wire Line
	4150 9450 4150 9550
$Comp
L 74LS86 U30
U 2 1 55AC5CE9
P 3250 7650
F 0 "U30" H 3300 7700 50  0000 C CNN
F 1 "74LS86" H 3300 7600 50  0000 C CNN
F 2 "~" H 3250 7650 60  0000 C CNN
F 3 "~" H 3250 7650 60  0000 C CNN
	2    3250 7650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	3850 7750 4350 7750
Connection ~ 4350 7750
NoConn ~ 1550 7050
NoConn ~ 1550 5650
Text Notes 4200 7750 2    50   ~ 0
6 MHz
NoConn ~ 3250 5650
$Comp
L GND #PWR067
U 1 1 55AC9DF7
P 3250 7050
F 0 "#PWR067" H 3250 7050 30  0001 C CNN
F 1 "GND" H 3250 6980 30  0001 C CNN
F 2 "~" H 3250 7050 60  0000 C CNN
F 3 "~" H 3250 7050 60  0000 C CNN
	1    3250 7050
	1    0    0    -1  
$EndComp
$Comp
L S80-74109 U44
U 2 1 55AC5862
P 3250 6350
F 0 "U44" H 3700 6950 50  0000 C CNN
F 1 "74109" H 3700 6850 50  0000 C CNN
F 2 "~" H 3250 6350 60  0000 C CNN
F 3 "~" H 3250 6350 60  0000 C CNN
	2    3250 6350
	1    0    0    -1  
$EndComp
Wire Wire Line
	2400 5150 2400 6600
Wire Wire Line
	2400 6600 2600 6600
Connection ~ 2400 6100
Wire Wire Line
	2300 6600 2200 6600
Wire Wire Line
	2600 6350 2500 6350
Wire Wire Line
	2500 6350 2500 7650
Connection ~ 2500 7650
Wire Wire Line
	3900 6100 4000 6100
Wire Wire Line
	4000 6100 4000 7550
Wire Wire Line
	4000 7550 3850 7550
Wire Wire Line
	4100 5450 4100 6600
Wire Wire Line
	4100 6600 3900 6600
Connection ~ 8750 9300
NoConn ~ 11650 5000
NoConn ~ 13300 5000
NoConn ~ 11050 5350
NoConn ~ 12250 5750
NoConn ~ 13900 5750
NoConn ~ 5300 10100
NoConn ~ 5650 9550
NoConn ~ 5150 2500
NoConn ~ 5250 2500
NoConn ~ 5350 2500
NoConn ~ 5150 1300
NoConn ~ 5250 1300
NoConn ~ 5350 1300
Connection ~ 4500 1950
NoConn ~ 6700 1300
NoConn ~ 6700 2500
$Comp
L +5V #PWR068
U 1 1 55AE2A69
P 8450 1100
F 0 "#PWR068" H 8455 1190 50  0001 C CNN
F 1 "+5V" H 8450 1190 50  0000 C CNN
F 2 "~" H 8450 1100 50  0000 C CNN
F 3 "~" H 8450 1100 60  0000 C CNN
	1    8450 1100
	1    0    0    -1  
$EndComp
NoConn ~ 11000 1650
$Comp
L GND #PWR069
U 1 1 55AE41E9
P 14950 2300
F 0 "#PWR069" H 14950 2300 30  0001 C CNN
F 1 "GND" H 14950 2230 30  0001 C CNN
F 2 "~" H 14950 2300 60  0000 C CNN
F 3 "~" H 14950 2300 60  0000 C CNN
	1    14950 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	14950 2300 14950 2200
Connection ~ 13200 1050
Text GLabel 5550 8700 0    50   Output ~ 0
12MHz*
Wire Wire Line
	5550 8700 5750 8700
Wire Wire Line
	5750 8700 5750 9200
Connection ~ 5750 9200
NoConn ~ 8750 1100
NoConn ~ 8900 1100
$EndSCHEMATC