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IO.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 23
Title "Open128"
Date ""
Rev ""
Comp ""
Comment1 "Licensed under CC BY-SA 4.0"
Comment2 "Open Source clone of the Commodore 128"
Comment3 "https://github.com/jgrip/open128/"
Comment4 ""
$EndDescr
$Sheet
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U 5DA449C5
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F1 "keyboard.sch" 50
F2 "~NMI" O R 4500 4550 50
F5 "COL[0..7]" O L 3500 4250 50
F6 "ROW[0..7]" O L 3500 4350 50
$EndSheet
$Sheet
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U 5DAF521B
F0 "Control Ports" 50
F1 "controlports.sch" 50
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F3 "ROW[0..7]" B L 3500 3550 50
$EndSheet
$Comp
L Open128:6526 U1
U 1 1 5DC5A53C
P 1950 3850
F 0 "U1" H 1700 5800 50 0000 C CNN
F 1 "6526A" H 2150 5800 50 0000 C CNN
F 2 "Package_DIP:DIP-40_W15.24mm_Socket" H 1950 4250 50 0001 C CNN
F 3 "https://archive.org/download/mos_6526_cia_recreated/mos_6526_cia_recreated.pdf" H 1950 4250 50 0001 C CNN
1 1950 3850
1 0 0 -1
$EndComp
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Wire Wire Line
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Text Label 2350 3450 0 50 ~ 0
COL0
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Text Label 2350 3550 0 50 ~ 0
COL1
Text Label 2350 3650 0 50 ~ 0
COL2
Text Label 2350 3750 0 50 ~ 0
COL3
Text Label 2350 3850 0 50 ~ 0
COL4
Text Label 2350 3950 0 50 ~ 0
COL5
Text Label 2350 4050 0 50 ~ 0
COL6
Text Label 2350 4150 0 50 ~ 0
COL7
Wire Bus Line
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Wire Bus Line
3500 3450 3250 3450
Wire Bus Line
3250 3450 3250 4250
Connection ~ 3250 4250
Wire Bus Line
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NoConn ~ 2350 4350
Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
2550 5150 2650 5050
Wire Wire Line
2550 4550 2350 4550
Wire Wire Line
2350 4650 2550 4650
Wire Wire Line
2550 4750 2350 4750
Wire Wire Line
2350 4850 2550 4850
Wire Wire Line
2550 4950 2350 4950
Wire Wire Line
2350 5050 2550 5050
Wire Wire Line
2550 5150 2350 5150
Text Label 2350 4550 0 50 ~ 0
ROW1
Text Label 2350 4650 0 50 ~ 0
ROW2
Text Label 2350 4750 0 50 ~ 0
ROW3
Text Label 2350 4850 0 50 ~ 0
ROW4
Text Label 2350 4950 0 50 ~ 0
ROW5
Text Label 2350 5050 0 50 ~ 0
ROW6
Text Label 2350 5150 0 50 ~ 0
ROW7
Wire Bus Line
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Wire Bus Line
3500 3550 3350 3550
Wire Bus Line
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Connection ~ 3350 4350
Wire Bus Line
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$Comp
L power:GND #PWR0139
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F 0 "#PWR0139" H 1950 5650 50 0001 C CNN
F 1 "GND" H 1955 5727 50 0001 C CNN
F 2 "" H 1950 5900 50 0001 C CNN
F 3 "" H 1950 5900 50 0001 C CNN
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1 0 0 -1
$EndComp
Wire Wire Line
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$Comp
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F 1 "+5V" H 1965 1773 50 0000 C CNN
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F 3 "" H 1950 1600 50 0001 C CNN
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Connection ~ 1950 1750
Wire Wire Line
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$Comp
L Device:C_Small C1
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F 1 "0.1 µF" V 2112 1750 50 0000 C CNN
F 2 "Capacitor_THT:C_Disc_D10.0mm_W2.5mm_P5.00mm" H 2250 1750 50 0001 C CNN
F 3 "~" H 2250 1750 50 0001 C CNN
F 4 "Ceramic" H 2250 1750 50 0001 C CNN "Type"
F 5 "581-SA105E104MAR" H 2250 1750 50 0001 C CNN "Mouser Part"
F 6 "25V" H 2250 1750 50 0001 C CNN "Voltage Rating"
F 7 "+80% -20%" H 2250 1750 50 0001 C CNN "Voltage Tolerance"
F 8 ".1µ" H 2250 1750 50 0001 C CNN "Silkscreen Value"
1 2250 1750
0 1 1 0
$EndComp
$Comp
L power:GND #PWR0141
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P 2400 1800
F 0 "#PWR0141" H 2400 1550 50 0001 C CNN
F 1 "GND" H 2405 1627 50 0001 C CNN
F 2 "" H 2400 1800 50 0001 C CNN
F 3 "" H 2400 1800 50 0001 C CNN
1 2400 1800
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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$Sheet
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U 5DC63920
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F1 "userport.sch" 50
F2 "PB[0..7]" B R 4300 6050 50
F3 "PA2" B R 4300 6250 50
F4 "CNT1" B L 3500 6450 50
F5 "SP1" B L 3500 6350 50
F6 "CNT2" B L 3500 6250 50
F7 "SP2" B L 3500 6150 50
F8 "~PC2" I R 4300 6150 50
F9 "ATN" B R 4300 6350 50
F10 "~RESET" I L 3500 5950 50
F11 "~EXTRES" I R 4300 6450 50
F12 "~FLAG2" O R 4300 5950 50
$EndSheet
$Sheet
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U 5DC639E3
F0 "Serial Bus" 50
F1 "serialbus.sch" 50
F2 "ATNOUT" I L 6950 3750 50
F3 "CLKOUT" I L 6950 3850 50
F4 "DATAOUT" I L 6950 3950 50
F5 "ATN" O R 7950 4600 50
F6 "CLK" O L 6950 4050 50
F7 "DATA" O L 6950 4150 50
F9 "~EXTRES" I R 7950 4500 50
F10 "~SRQIN" B R 7950 4700 50
F11 "CNT" B R 7950 4250 50
F12 "SP" B R 7950 4350 50
$EndSheet
$Sheet
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F1 "casetteinterface.sch" 50
F2 "WRITE" O L 8300 3100 50
F3 "READ" O R 9200 3200 50
F4 "SENSE" O L 8300 3200 50
F5 "MOTOR" O L 8300 3000 50
$EndSheet
$Comp
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F 1 "6526A" H 5700 5800 50 0000 C CNN
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F 3 "https://archive.org/download/mos_6526_cia_recreated/mos_6526_cia_recreated.pdf" H 5500 4250 50 0001 C CNN
1 5500 3850
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR0142
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F 1 "+5V" H 5515 1773 50 0000 C CNN
F 2 "" H 5500 1600 50 0001 C CNN
F 3 "" H 5500 1600 50 0001 C CNN
1 5500 1600
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Connection ~ 5500 1700
Wire Wire Line
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$Comp
L Device:C_Small C4
U 1 1 5DE17E37
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F 0 "C4" V 5421 1700 50 0000 C CNN
F 1 "0.1 µF" V 5512 1700 50 0000 C CNN
F 2 "Capacitor_THT:C_Disc_D10.0mm_W2.5mm_P5.00mm" H 5650 1700 50 0001 C CNN
F 3 "~" H 5650 1700 50 0001 C CNN
F 4 "Ceramic" H 5650 1700 50 0001 C CNN "Type"
F 5 "581-SA105E104MAR" H 5650 1700 50 0001 C CNN "Mouser Part"
F 6 "25V" H 5650 1700 50 0001 C CNN "Voltage Rating"
F 7 "+80% -20%" H 5650 1700 50 0001 C CNN "Voltage Tolerance"
F 8 ".1µ" H 5650 1700 50 0001 C CNN "Silkscreen Value"
1 5650 1700
0 1 1 0
$EndComp
$Comp
L power:GND #PWR0143
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F 0 "#PWR0143" H 5850 1500 50 0001 C CNN
F 1 "GND" H 5855 1577 50 0001 C CNN
F 2 "" H 5850 1750 50 0001 C CNN
F 3 "" H 5850 1750 50 0001 C CNN
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1 0 0 -1
$EndComp
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
2950 1250 2950 6250
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3150 6450
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3250 6350
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L 74xx:74LS07 U60
U 2 1 5DF3BDC6
P 9250 4700
F 0 "U60" H 9200 4900 50 0000 C CNN
F 1 "7407" H 9400 4600 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 9250 4700 50 0001 C CNN
F 3 "www.ti.com/lit/ds/symlink/sn74ls07.pdf" H 9250 4700 50 0001 C CNN
F 4 "595-SN74LS07N" H 9250 4700 50 0001 C CNN "Mouser Part"
2 9250 4700
1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 9800 4700
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
L Device:R_Small R46
U 1 1 5DF54791
P 5000 5150
F 0 "R46" H 4800 5150 50 0000 L CNN
F 1 "3.3k" V 5000 5100 31 0000 L CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" H 5000 5150 50 0001 C CNN
F 3 "~" H 5000 5150 50 0001 C CNN
F 4 "660-MF1/4LCT52R332J" H 5000 5150 50 0001 C CNN "Mouser Part"
1 5000 5150
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR0178
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F 0 "#PWR0178" H 5000 4850 50 0001 C CNN
F 1 "+5V" H 5015 5173 50 0000 C CNN
F 2 "" H 5000 5000 50 0001 C CNN
F 3 "" H 5000 5000 50 0001 C CNN
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1 0 0 -1
$EndComp
Wire Wire Line
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Wire Wire Line
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Connection ~ 5000 5350
Wire Wire Line
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Text Label 5950 4450 0 50 ~ 0
PB0
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Entry Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3150 750
Wire Wire Line
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Connection ~ 1450 750
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
6800 6800 3150 6800
Wire Wire Line
6900 5350 6900 6900
Wire Wire Line
6900 6900 1250 6900
Wire Wire Line
1250 6900 1250 5350
Wire Wire Line
1250 5350 1300 5350
Wire Wire Line
9800 4700 9800 5350
$Comp
L power:GND #PWR0179
U 1 1 5DFEAE1F
P 5500 5900
F 0 "#PWR0179" H 5500 5650 50 0001 C CNN
F 1 "GND" H 5505 5727 50 0001 C CNN
F 2 "" H 5500 5900 50 0001 C CNN
F 3 "" H 5500 5900 50 0001 C CNN
1 5500 5900
1 0 0 -1
$EndComp
Wire Wire Line
5500 5850 5500 5900
Wire Wire Line
5100 2350 4800 2350
Wire Wire Line
4800 2350 4800 850
Wire Wire Line
4800 850 1300 850
Wire Wire Line
1550 2350 1300 2350
Wire Wire Line
1300 2350 1300 850
Connection ~ 1300 850
Wire Wire Line
1300 850 900 850
Entry Wire Line
6100 2550 6200 2450
Entry Wire Line
6100 2650 6200 2550
Entry Wire Line
6100 2750 6200 2650
Entry Wire Line
6100 2850 6200 2750
Entry Wire Line
6100 2950 6200 2850
Entry Wire Line
6100 3050 6200 2950
Entry Wire Line
6100 3150 6200 3050
Entry Wire Line
6100 3250 6200 3150
Wire Bus Line
6200 950 2650 950
Text HLabel 900 950 0 50 Input ~ 0
D[0..7]
Wire Wire Line
5900 2550 6100 2550
Wire Wire Line
6100 2650 5900 2650
Wire Wire Line
5900 2750 6100 2750
Wire Wire Line
6100 2850 5900 2850
Wire Wire Line
5900 2950 6100 2950
Wire Wire Line
6100 3050 5900 3050
Wire Wire Line
5900 3150 6100 3150
Wire Wire Line
6100 3250 5900 3250
Text Label 5950 2550 0 50 ~ 0
D0
Text Label 5950 2650 0 50 ~ 0
D1
Text Label 5950 2750 0 50 ~ 0
D2
Text Label 5950 2850 0 50 ~ 0
D3
Text Label 5950 2950 0 50 ~ 0
D4
Text Label 5950 3050 0 50 ~ 0
D5
Text Label 5950 3150 0 50 ~ 0
D6
Text Label 5950 3250 0 50 ~ 0
D7
Entry Wire Line
2550 2550 2650 2450
Entry Wire Line
2550 2650 2650 2550
Entry Wire Line
2550 2750 2650 2650
Entry Wire Line
2550 2850 2650 2750
Entry Wire Line
2550 2950 2650 2850
Entry Wire Line
2550 3050 2650 2950
Entry Wire Line
2550 3150 2650 3050
Entry Wire Line
2550 3250 2650 3150
Wire Wire Line
2350 2550 2550 2550
Wire Wire Line
2550 2650 2350 2650
Wire Wire Line
2350 2750 2550 2750
Wire Wire Line
2550 2850 2350 2850
Wire Wire Line
2350 2950 2550 2950
Wire Wire Line
2550 3050 2350 3050
Wire Wire Line
2350 3150 2550 3150
Wire Wire Line
2550 3250 2350 3250
Text Label 2400 2550 0 50 ~ 0
D0
Text Label 2400 2650 0 50 ~ 0
D1
Text Label 2400 2750 0 50 ~ 0
D2
Text Label 2400 2850 0 50 ~ 0
D3
Text Label 2400 2950 0 50 ~ 0
D4
Text Label 2400 3050 0 50 ~ 0
D5
Text Label 2400 3150 0 50 ~ 0
D6
Text Label 2400 3250 0 50 ~ 0
D7
Connection ~ 2650 950
Wire Bus Line
2650 950 900 950
Entry Wire Line
1200 2450 1300 2550
Entry Wire Line
1200 2550 1300 2650
Entry Wire Line
1200 2650 1300 2750
Entry Wire Line
1200 2750 1300 2850
Wire Wire Line
1300 2550 1550 2550
Wire Wire Line
1550 2650 1300 2650
Wire Wire Line
1300 2750 1550 2750
Wire Wire Line
1550 2850 1300 2850
Text Label 1400 2550 0 50 ~ 0
A0
Text Label 1400 2650 0 50 ~ 0
A1
Text Label 1400 2750 0 50 ~ 0
A2
Text Label 1400 2850 0 50 ~ 0
A3
Wire Bus Line
1200 1050 900 1050
Text HLabel 900 1050 0 50 Input ~ 0
A[0..15]
Entry Wire Line
4700 2450 4800 2550
Entry Wire Line
4700 2550 4800 2650
Entry Wire Line
4700 2650 4800 2750
Entry Wire Line
4700 2750 4800 2850
Wire Wire Line
4800 2550 5100 2550
Wire Wire Line
5100 2650 4800 2650
Wire Wire Line
4800 2750 5100 2750
Wire Wire Line
5100 2850 4800 2850
Text Label 4950 2550 0 50 ~ 0
A0
Text Label 4950 2650 0 50 ~ 0
A1
Text Label 4950 2750 0 50 ~ 0
A2
Text Label 4950 2850 0 50 ~ 0
A3
Wire Bus Line
4700 1050 1200 1050
Connection ~ 1200 1050
Wire Wire Line
5900 3750 6950 3750
Wire Wire Line
6950 3850 5900 3850
Wire Wire Line
5900 3950 6950 3950
Wire Wire Line
6950 4050 5900 4050
Wire Wire Line
5900 4150 6950 4150
Wire Wire Line
5900 5350 6000 5350
Wire Wire Line
6000 5350 6000 6550
Wire Wire Line
6000 6550 4650 6550
Wire Wire Line
4650 6550 4650 4550
Wire Wire Line
4650 4550 4500 4550
Wire Wire Line
4650 4550 4800 4550
Connection ~ 4650 4550
Wire Wire Line
5100 5650 2600 5650
Wire Wire Line
2600 5650 2600 7400
Wire Wire Line
2600 7400 1450 7400
Wire Wire Line
5100 5550 2500 5550
Wire Wire Line
2500 5550 2500 7300
Wire Wire Line
1550 5650 1450 5650
Wire Wire Line
1450 5650 1450 7400
Connection ~ 1450 7400
Wire Wire Line
1450 7400 900 7400
Wire Wire Line
2400 7200 2400 5350
Wire Wire Line
2400 5350 2350 5350
Wire Wire Line
900 7200 2400 7200
Wire Wire Line
1550 5550 900 5550
Text Label 1550 2250 2 50 ~ 0
~CIA1
Wire Wire Line
900 2250 1550 2250
Wire Wire Line
4500 2250 5100 2250
Text HLabel 900 650 0 50 BiDi ~ 0
P[0..5]
Wire Bus Line
900 650 7800 650
Entry Wire Line
7800 2900 7900 3000
Entry Wire Line
7800 3000 7900 3100
Entry Wire Line
7800 3100 7900 3200
Wire Wire Line
7900 3000 8300 3000
Wire Wire Line
8300 3100 7900 3100
Wire Wire Line
7900 3200 8300 3200
Text Label 8100 3100 0 50 ~ 0
P3
Text Label 8100 3200 0 50 ~ 0
P4
Text Label 8100 3000 0 50 ~ 0
P5
Text Label 5950 4550 0 50 ~ 0
PB1
Text Label 5950 4650 0 50 ~ 0
PB2
Text Label 5950 4750 0 50 ~ 0
PB3
Text Label 5950 4850 0 50 ~ 0
PB4
Text Label 5950 4950 0 50 ~ 0
PB5
Text Label 5950 5050 0 50 ~ 0
PB6
Text Label 5950 5150 0 50 ~ 0
PB7
Wire Wire Line
2550 4450 2350 4450
Text Label 2350 4450 0 50 ~ 0
ROW0
Text GLabel 1200 750 0 50 Input ~ 0
~RESET
Text GLabel 4500 2250 0 50 Input ~ 0
~CS_CIA2
Text GLabel 900 2250 0 50 Input ~ 0
~CS_CIA1
$Comp
L Device:R_Small R2
U 1 1 5DD9B45E
P 1400 5350
F 0 "R2" V 1500 5350 50 0000 C CNN
F 1 "100" V 1400 5350 31 0000 C CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" H 1400 5350 50 0001 C CNN
F 3 "~" H 1400 5350 50 0001 C CNN
F 4 "660-MF1/4DCT52A1000F" H 1400 5350 50 0001 C CNN "Mouser Part"
1 1400 5350
0 -1 -1 0
$EndComp
Wire Wire Line
1500 5350 1550 5350
Wire Wire Line
6900 5350 9800 5350
Wire Wire Line
900 7300 2500 7300
Text Label 3250 3900 1 50 ~ 0
COL[0..7]
Text Label 3350 3900 1 50 ~ 0
ROW[0..7]
Text Label 6200 5700 1 50 ~ 0
PB[0..7]
$Comp
L 74xx:74LS06N U63
U 6 1 5E0BE7AD
P 8600 2200
F 0 "U63" H 8300 2350 50 0000 C CNN
F 1 "7406" H 8800 2100 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8600 2200 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS06N" H 8600 2200 50 0001 C CNN
F 4 "595-SN74LS06N" H 8600 2200 50 0001 C CNN "Mouser Part"
6 8600 2200
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS06N U63
U 5 1 5E0BFB75
P 8600 1850
F 0 "U63" H 8300 1950 50 0000 C CNN
F 1 "7406" H 8750 1750 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8600 1850 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS06N" H 8600 1850 50 0001 C CNN
F 4 "595-SN74LS06N" H 8600 1850 50 0001 C CNN "Mouser Part"
5 8600 1850
1 0 0 -1
$EndComp
Wire Wire Line
8900 2200 9500 2200
Wire Wire Line
8900 1850 9100 1850
Wire Wire Line
5900 3450 6300 3450
Wire Wire Line
6300 3450 6300 1850
Wire Wire Line
6300 1850 8300 1850
Wire Wire Line
5900 3550 6400 3550
Wire Wire Line
6400 3550 6400 2200
Wire Wire Line
6400 2200 8300 2200
$Comp
L Open128:R_Network07_Split RP1
U 6 1 5E15000F
P 9100 1550
F 0 "RP1" H 9187 1596 50 0000 L CNN
F 1 "1k" V 9100 1500 50 0000 L CNN
F 2 "Resistor_THT:R_Array_SIP8" H 9150 1425 50 0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 9100 1550 50 0001 C CNN
F 4 "652-4608X-1LF-1K" H 9100 1550 50 0001 C CNN "Mouser Part"
6 9100 1550
1 0 0 -1
$EndComp
$Comp
L Open128:R_Network07_Split RP1
U 7 1 5E150C76
P 9500 1550
F 0 "RP1" H 9587 1596 50 0000 L CNN
F 1 "1k" V 9500 1500 50 0000 L CNN
F 2 "Resistor_THT:R_Array_SIP8" H 9550 1425 50 0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 9500 1550 50 0001 C CNN
F 4 "652-4608X-1LF-1K" H 9500 1550 50 0001 C CNN "Mouser Part"
7 9500 1550
1 0 0 -1
$EndComp
Wire Wire Line
9100 1700 9100 1850
Connection ~ 9100 1850
Wire Wire Line
9100 1850 10100 1850
Wire Wire Line
9500 1700 9500 2200
Connection ~ 9500 2200
Wire Wire Line
9500 2200 10100 2200
Wire Wire Line
9100 1400 9100 1300
Wire Wire Line
9100 1300 9300 1300
Wire Wire Line
9500 1300 9500 1400
$Comp
L power:+5V #PWR0420
U 1 1 5E176C5F
P 9300 1200
F 0 "#PWR0420" H 9300 1050 50 0001 C CNN
F 1 "+5V" H 9315 1373 50 0000 C CNN
F 2 "" H 9300 1200 50 0001 C CNN
F 3 "" H 9300 1200 50 0001 C CNN
1 9300 1200
1 0 0 -1
$EndComp
Wire Wire Line
9300 1200 9300 1300
Connection ~ 9300 1300
Wire Wire Line
9300 1300 9500 1300
Wire Wire Line
6300 3450 6750 3450
Connection ~ 6300 3450
$Comp
L Open128:R_Network07_Split RP5
U 3 1 5DE0E11B
P 1250 5100
F 0 "RP5" H 1000 5100 50 0000 L CNN
F 1 "3.3k" V 1250 5050 31 0000 L CNN
F 2 "Resistor_THT:R_Array_SIP8" H 1300 4975 50 0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 1250 5100 50 0001 C CNN
F 4 "652-4608X-1LF-3.3K" H 1250 5100 50 0001 C CNN "Mouser Part"
3 1250 5100
1 0 0 -1
$EndComp
Wire Wire Line
1250 5350 1250 5250
Connection ~ 1250 5350
$Comp
L power:+5V #PWR0431
U 1 1 5DE1B8FB
P 1250 4850
F 0 "#PWR0431" H 1250 4700 50 0001 C CNN
F 1 "+5V" H 1265 5023 50 0000 C CNN
F 2 "" H 1250 4850 50 0001 C CNN
F 3 "" H 1250 4850 50 0001 C CNN
1 1250 4850
1 0 0 -1
$EndComp
Wire Wire Line
1250 4850 1250 4950
Wire Wire Line
6300 4350 5900 4350
Text GLabel 900 7200 0 50 Input ~ 0
~IRQ
Text GLabel 900 850 0 50 Input ~ 0
R~W
Text GLabel 900 7400 0 50 Input ~ 0
TOD
Text GLabel 4800 4550 2 50 Output ~ 0
~NMI
Text GLabel 900 7300 0 50 Input ~ 0
1MHZ
Text GLabel 900 5550 0 50 Input ~ 0
D1MHZ
Text GLabel 10100 1850 2 50 Output ~ 0
VA14
Text GLabel 10100 2200 2 50 Output ~ 0
VA15
Text GLabel 6750 3450 2 50 Output ~ 0
~VA14
Wire Bus Line
7800 650 7800 3100
Wire Bus Line
1200 1050 1200 2750
Wire Bus Line
4700 1050 4700 2750
Wire Bus Line
2650 3550 2650 4250
Wire Bus Line
2650 4350 2650 5050
Wire Bus Line