blob: d68ce23f860410b1f4b467b99151d0387afaa1f8 [file] [log] [blame]
EESchema Schematic File Version 2 date 30/04/2011 21:47:42
LIBS:device
LIBS:power
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:74xx
LIBS:special
LIBS:interface
LIBS:contrib
LIBS:valves
LIBS:dips-s
LIBS:flashmemory
LIBS:ramcard-cache
EELAYER 25 0
EELAYER END
$Descr A4 11700 8267
encoding utf-8
Sheet 1 1
Title ""
Date "30 apr 2011"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Label 1850 3450 0 60 ~ 0
I4
Text Label 2000 2650 0 60 ~ 0
I3
Text Label 1850 3250 0 60 ~ 0
I2
Text Label 2000 2850 0 60 ~ 0
I1
Text Label 1550 2950 0 60 ~ 0
I4
Text Label 1550 2850 0 60 ~ 0
I3
Text Label 1550 2750 0 60 ~ 0
I2
Text Label 1550 2650 0 60 ~ 0
I1
Wire Wire Line
2050 2950 2000 2950
Wire Wire Line
2050 2750 2000 2750
Wire Wire Line
1550 2850 1800 2850
Wire Wire Line
8300 2300 8000 2300
Connection ~ 8300 2300
Wire Wire Line
3800 6300 3800 6200
Wire Wire Line
4300 5800 4400 5800
Wire Wire Line
3350 6200 3350 6300
Wire Wire Line
5950 2800 6150 2800
Wire Bus Line
2650 4550 2650 4350
Wire Wire Line
4950 2100 5150 2100
Wire Bus Line
4850 1600 4850 900
Wire Wire Line
5150 1600 5000 1600
Wire Wire Line
5150 1500 5000 1500
Wire Wire Line
5150 1400 5000 1400
Wire Wire Line
5150 1300 5000 1300
Wire Wire Line
5150 1200 5000 1200
Wire Wire Line
5150 1100 5000 1100
Wire Wire Line
5150 1000 5000 1000
Wire Wire Line
5150 900 5000 900
Wire Wire Line
5950 1500 6100 1500
Wire Wire Line
5950 1300 6100 1300
Wire Wire Line
5950 1100 6100 1100
Wire Wire Line
5950 900 6100 900
Wire Wire Line
5950 2000 6250 2000
Wire Wire Line
5950 1800 6250 1800
Wire Bus Line
6250 1700 6250 2000
Wire Wire Line
5150 1700 4850 1700
Connection ~ 1600 2650
Connection ~ 1550 3600
Wire Wire Line
5200 3950 5350 3950
Connection ~ 3850 2850
Wire Wire Line
9850 3900 9850 4000
Wire Wire Line
4950 2900 5150 2900
Wire Bus Line
10850 2400 10850 1300
Connection ~ 8150 2300
Wire Wire Line
8150 2150 8150 2300
Connection ~ 8000 2800
Wire Wire Line
8300 2800 8000 2800
Connection ~ 7500 3350
Wire Wire Line
7500 2950 7500 3800
Connection ~ 7700 3800
Wire Wire Line
7500 3800 7800 3800
Wire Wire Line
7700 3950 7700 3800
Wire Bus Line
800 900 800 1100
Wire Wire Line
3850 2200 3850 2350
Wire Wire Line
6200 5350 6500 5350
Wire Wire Line
5000 5450 5000 5250
Wire Notes Line
450 1900 4550 1900
Wire Notes Line
7450 4100 7450 3450
Wire Notes Line
7450 3450 6800 3450
Wire Wire Line
5200 4350 5300 4350
Wire Wire Line
6800 4650 6800 4450
Wire Wire Line
8000 4550 8200 4550
Wire Wire Line
6800 4450 6500 4450
Wire Wire Line
950 1600 1050 1600
Wire Bus Line
2900 6750 3100 6750
Wire Wire Line
2250 7150 2450 7150
Wire Wire Line
950 7050 1050 7050
Wire Wire Line
5950 3200 6100 3200
Wire Wire Line
5950 3000 6100 3000
Wire Wire Line
5950 800 6100 800
Wire Wire Line
5150 2200 4950 2200
Wire Wire Line
5150 2600 4950 2600
Wire Wire Line
5150 2800 4950 2800
Wire Wire Line
5150 3100 4950 3100
Wire Wire Line
1100 5850 1000 5850
Wire Wire Line
4900 2400 5150 2400
Wire Wire Line
4900 2300 5150 2300
Wire Wire Line
1100 6050 1100 6200
Wire Wire Line
1100 6200 2300 6200
Wire Wire Line
2300 6200 2300 6500
Wire Wire Line
2300 5950 2450 5950
Wire Notes Line
4450 4050 350 4050
Wire Wire Line
900 5400 900 5350
Wire Wire Line
900 5350 1050 5350
Wire Wire Line
2450 5050 2650 5050
Wire Wire Line
2450 4850 2650 4850
Wire Wire Line
2050 3450 1850 3450
Wire Wire Line
2050 3250 1850 3250
Wire Wire Line
8850 3650 9150 3650
Connection ~ 1800 2150
Wire Wire Line
1800 2350 1800 2150
Wire Wire Line
1900 2450 1900 2150
Wire Wire Line
1900 2150 1600 2150
Wire Wire Line
1550 2750 1700 2750
Connection ~ 1150 2750
Wire Wire Line
1150 2650 1150 2950
Connection ~ 3800 1600
Wire Wire Line
3800 1500 3800 1600
Wire Wire Line
950 1400 1050 1400
Wire Wire Line
1550 2950 1900 2950
Wire Wire Line
2250 1600 2400 1600
Wire Wire Line
2250 1400 2400 1400
Wire Wire Line
2250 1200 2400 1200
Wire Wire Line
2250 1000 2400 1000
Connection ~ 3550 1500
Wire Wire Line
3550 900 3550 1600
Connection ~ 3550 1300
Connection ~ 3550 1100
Wire Wire Line
2800 1500 3150 1500
Wire Wire Line
2800 1300 3150 1300
Wire Wire Line
2800 1100 3150 1100
Wire Wire Line
2800 900 3150 900
Wire Wire Line
2800 1000 3150 1000
Wire Wire Line
2800 1200 3150 1200
Wire Wire Line
2800 1400 3150 1400
Wire Wire Line
2800 1600 3150 1600
Connection ~ 3550 1000
Connection ~ 3550 1200
Connection ~ 3550 1400
Wire Wire Line
2250 900 2400 900
Wire Wire Line
2250 1100 2400 1100
Wire Wire Line
2250 1300 2400 1300
Wire Wire Line
2250 1500 2400 1500
Wire Wire Line
3450 3450 3650 3450
Wire Wire Line
3550 1600 3950 1600
Wire Wire Line
3800 1000 3800 850
Connection ~ 1150 2850
Wire Wire Line
1150 2800 900 2800
Wire Wire Line
900 2800 900 2850
Connection ~ 1150 2800
Wire Wire Line
1550 2650 1600 2650
Wire Wire Line
1700 2250 1700 2150
Connection ~ 1700 2150
Wire Wire Line
1850 2150 1850 2050
Connection ~ 1850 2150
Wire Wire Line
900 3600 1050 3600
Wire Wire Line
2050 3150 1850 3150
Wire Wire Line
2050 3350 1850 3350
Wire Wire Line
2450 4750 2650 4750
Wire Wire Line
2450 4950 2650 4950
Wire Wire Line
2450 4350 2650 4350
Wire Wire Line
2450 4450 2650 4450
Wire Wire Line
2450 4550 2650 4550
Wire Wire Line
2450 4650 2650 4650
Wire Notes Line
4550 450 4550 5550
Wire Notes Line
4550 5550 450 5550
Wire Wire Line
900 5250 1050 5250
Wire Wire Line
900 6400 1100 6400
Wire Wire Line
5150 3200 4900 3200
Wire Wire Line
4900 3200 4900 3300
Wire Wire Line
900 6600 1100 6600
Wire Notes Line
2900 6750 450 6750
Wire Wire Line
5150 3000 4950 3000
Wire Wire Line
5150 2700 4950 2700
Wire Wire Line
5150 2500 4950 2500
Wire Wire Line
5150 800 4950 800
Wire Wire Line
5950 2900 6100 2900
Wire Wire Line
5950 3100 6100 3100
Wire Bus Line
6800 450 6800 3450
Wire Bus Line
6800 3450 4550 3450
Wire Wire Line
950 7250 1050 7250
Wire Bus Line
3100 5550 3100 7800
Wire Wire Line
950 1500 1050 1500
Wire Wire Line
5200 4550 5300 4550
Wire Wire Line
5200 3750 5350 3750
Wire Wire Line
6550 3850 6850 3850
Wire Wire Line
8850 3550 9150 3550
Wire Wire Line
8600 4550 8750 4550
Wire Notes Line
4550 4100 9400 4100
Wire Notes Line
9400 4100 9400 4950
Wire Notes Line
9400 4950 4550 4950
Wire Wire Line
1000 3350 1150 3350
Wire Wire Line
5000 5250 4850 5250
Wire Wire Line
1550 3050 1700 3050
Wire Wire Line
1700 3050 1700 3700
Wire Wire Line
1700 3700 4050 3700
Wire Wire Line
4050 3700 4050 2850
Wire Wire Line
4050 2850 3450 2850
Wire Wire Line
1050 3050 1150 3050
Wire Wire Line
800 900 1050 900
Wire Wire Line
800 1000 1050 1000
Wire Wire Line
800 1100 1050 1100
Wire Wire Line
9150 3750 8200 3750
Wire Wire Line
8000 3500 8000 3350
Wire Wire Line
7900 2950 8000 2950
Wire Wire Line
8000 2950 8000 2750
Wire Wire Line
8000 2300 8000 2350
Wire Wire Line
1050 4350 900 4350
Wire Wire Line
1050 4450 900 4450
Wire Wire Line
1050 4550 900 4550
Wire Wire Line
1050 4650 900 4650
Wire Wire Line
1050 4750 900 4750
Wire Wire Line
1050 4850 900 4850
Wire Wire Line
1050 4950 900 4950
Wire Wire Line
1050 5050 900 5050
Connection ~ 2650 4350
Connection ~ 2650 4450
Connection ~ 2650 4550
Connection ~ 2650 4650
Connection ~ 2650 4750
Connection ~ 2650 4850
Connection ~ 2650 4950
Connection ~ 2650 5050
Wire Wire Line
10850 1550 10550 1550
Wire Wire Line
10850 1650 10550 1650
Wire Wire Line
10850 1750 10550 1750
Wire Wire Line
10850 1850 10550 1850
Wire Wire Line
10850 1950 10550 1950
Wire Wire Line
10850 2050 10550 2050
Wire Wire Line
10850 2150 10550 2150
Wire Wire Line
10850 2250 10550 2250
Wire Wire Line
9850 1300 9850 1400
Wire Wire Line
1550 3700 1550 3350
Wire Bus Line
4850 1700 4850 2000
Wire Wire Line
5150 1800 4850 1800
Wire Wire Line
5150 1900 4850 1900
Wire Wire Line
5150 2000 4850 2000
Wire Wire Line
5950 1700 6250 1700
Wire Wire Line
5950 1900 6250 1900
Wire Wire Line
5950 1000 6100 1000
Wire Wire Line
5950 1200 6100 1200
Wire Wire Line
5950 1400 6100 1400
Wire Wire Line
5950 1600 6100 1600
Wire Bus Line
6300 1600 6300 900
Wire Wire Line
9150 1550 8950 1550
Wire Wire Line
9150 1650 8950 1650
Wire Wire Line
9150 1750 8950 1750
Wire Wire Line
9150 1850 8950 1850
Wire Wire Line
9150 1950 8950 1950
Wire Wire Line
9150 2050 8950 2050
Wire Wire Line
9150 2150 8950 2150
Wire Wire Line
9150 2250 8950 2250
Wire Wire Line
9150 2350 8950 2350
Wire Wire Line
9150 2450 8950 2450
Wire Wire Line
9150 2550 8950 2550
Wire Wire Line
9150 2650 8950 2650
Wire Wire Line
9150 2750 8950 2750
Wire Wire Line
9150 2850 8950 2850
Wire Wire Line
9150 2950 8950 2950
Wire Wire Line
9150 3050 8950 3050
Wire Wire Line
9150 3150 8950 3150
Wire Wire Line
9150 3250 8950 3250
Wire Wire Line
9150 3350 8950 3350
Wire Bus Line
2650 5050 2650 4650
Wire Bus Line
900 5050 900 4350
Wire Wire Line
3350 5800 3350 5700
Wire Wire Line
5000 5800 5000 5950
Wire Wire Line
3650 5800 3900 5800
Connection ~ 3800 5800
Wire Wire Line
8600 3150 8200 3150
Wire Wire Line
8200 3150 8200 3800
Connection ~ 8200 3750
Wire Wire Line
8600 2650 8600 2500
Connection ~ 1700 2750
Wire Wire Line
2050 2650 2000 2650
Wire Wire Line
2050 2850 2000 2850
$Comp
L VCC #PWR01
U 1 1 4DBC6DC1
P 1850 2050
F 0 "#PWR01" H 1850 2150 30 0001 C CNN
F 1 "VCC" H 1850 2150 30 0000 C CNN
1 1850 2050
1 0 0 -1
$EndComp
$Comp
L +BATT #PWR02
U 1 1 4DBC65B0
P 8950 3250
F 0 "#PWR02" H 8950 3200 20 0001 C CNN
F 1 "+BATT" H 8950 3350 30 0000 C CNN
1 8950 3250
0 -1 -1 0
$EndComp
$Comp
L +BATT #PWR03
U 1 1 4DBC6468
P 8600 2500
F 0 "#PWR03" H 8600 2450 20 0001 C CNN
F 1 "+BATT" H 8600 2600 30 0000 C CNN
1 8600 2500
1 0 0 -1
$EndComp
$Comp
L VCC #PWR04
U 1 1 4DBC00D5
P 3800 6300
F 0 "#PWR04" H 3800 6400 30 0001 C CNN
F 1 "VCC" H 3800 6400 30 0000 C CNN
1 3800 6300
-1 0 0 1
$EndComp
$Comp
L GND #PWR05
U 1 1 4DBC006F
P 5000 5950
F 0 "#PWR05" H 5000 5950 30 0001 C CNN
F 1 "GND" H 5000 5880 30 0001 C CNN
1 5000 5950
1 0 0 -1
$EndComp
$Comp
L +BATT #PWR06
U 1 1 4DBC006B
P 3650 5800
F 0 "#PWR06" H 3650 5750 20 0001 C CNN
F 1 "+BATT" H 3650 5900 30 0000 C CNN
1 3650 5800
0 -1 -1 0
$EndComp
$Comp
L +BATT #PWR07
U 1 1 4DBC004F
P 3350 5700
F 0 "#PWR07" H 3350 5650 20 0001 C CNN
F 1 "+BATT" H 3350 5800 30 0000 C CNN
1 3350 5700
1 0 0 -1
$EndComp
$Comp
L +BATT #PWR08
U 1 1 4DBC0046
P 9850 1300
F 0 "#PWR08" H 9850 1250 20 0001 C CNN
F 1 "+BATT" H 9850 1400 30 0000 C CNN
1 9850 1300
1 0 0 -1
$EndComp
$Comp
L GND #PWR09
U 1 1 4DBBFE96
P 3350 6300
F 0 "#PWR09" H 3350 6300 30 0001 C CNN
F 1 "GND" H 3350 6230 30 0001 C CNN
1 3350 6300
1 0 0 -1
$EndComp
Text GLabel 6150 2800 2 60 Output ~ 0
ROMEN
Text Label 4900 5250 0 60 ~ 0
AC4
Text Label 2000 2950 0 60 ~ 0
AC3
Text Label 1850 3150 0 60 ~ 0
AC2
Text Label 2000 2750 0 60 ~ 0
AC1
Text Label 1850 3350 0 60 ~ 0
AC0
Text Label 900 1100 0 60 ~ 0
IS2
Text Label 900 1000 0 60 ~ 0
IS1
Text Label 900 900 0 60 ~ 0
IS0
Text Label 2550 5050 0 60 ~ 0
AC4
Text Label 2550 4550 0 60 ~ 0
AC3
Text Label 2550 4850 0 60 ~ 0
AC2
Text Label 2550 4650 0 60 ~ 0
AC1
Text Label 2550 4750 0 60 ~ 0
AC0
Text Label 2550 4950 0 60 ~ 0
IS2
Text Label 2550 4450 0 60 ~ 0
IS1
Text Label 2550 4350 0 60 ~ 0
IS0
Text Label 950 7050 0 60 ~ 0
A15
Text Label 950 7250 0 60 ~ 0
A14
Text Label 1000 5850 0 60 ~ 0
A13
$Comp
L VCC #PWR010
U 1 1 4DBBEA82
P 4950 2100
F 0 "#PWR010" H 4950 2200 30 0001 C CNN
F 1 "VCC" H 4950 2200 30 0000 C CNN
1 4950 2100
0 -1 -1 0
$EndComp
Text Label 8950 3350 0 60 ~ 0
A18
Text Label 8950 3150 0 60 ~ 0
A16
Text Label 8950 3050 0 60 ~ 0
A15
Text Label 8950 2950 0 60 ~ 0
A14
Text Label 8950 2750 0 60 ~ 0
A13
Text Label 8950 2850 0 60 ~ 0
A12
Text Label 8950 2250 0 60 ~ 0
A11
Text Label 8950 2350 0 60 ~ 0
A10
Text Label 8950 2150 0 60 ~ 0
A9
Text Label 8950 2450 0 60 ~ 0
A8
Text Label 8950 2050 0 60 ~ 0
A7
Text Label 8950 2650 0 60 ~ 0
A6
Text Label 8950 1950 0 60 ~ 0
A5
Text Label 8950 2550 0 60 ~ 0
A4
Text Label 8950 1850 0 60 ~ 0
A3
Text Label 8950 1750 0 60 ~ 0
A2
Text Label 8950 1650 0 60 ~ 0
A1
Text Label 8950 1550 0 60 ~ 0
A0
Text Label 5000 900 0 60 ~ 0
A15
Text Label 6100 900 0 60 ~ 0
A14
Text Label 5000 1000 0 60 ~ 0
A13
Text Label 6100 1000 0 60 ~ 0
A12
Text Label 5000 1100 0 60 ~ 0
A11
Text Label 6100 1100 0 60 ~ 0
A10
Text Label 5000 1200 0 60 ~ 0
A9
Text Label 6100 1200 0 60 ~ 0
A8
Text Label 5000 1300 0 60 ~ 0
A7
Text Label 6100 1300 0 60 ~ 0
A6
Text Label 5000 1400 0 60 ~ 0
A5
Text Label 6100 1400 0 60 ~ 0
A4
Text Label 5000 1500 0 60 ~ 0
A3
Text Label 6100 1500 0 60 ~ 0
A2
Text Label 5000 1600 0 60 ~ 0
A1
Text Label 6100 1600 0 60 ~ 0
A0
Text Label 1000 5050 0 60 ~ 0
D7
Text Label 1000 4550 0 60 ~ 0
D6
Text Label 1000 4850 0 60 ~ 0
D5
Text Label 1000 4650 0 60 ~ 0
D4
Text Label 1000 4750 0 60 ~ 0
D3
Text Label 1000 4950 0 60 ~ 0
D2
Text Label 1000 4450 0 60 ~ 0
D1
Text Label 1000 4350 0 60 ~ 0
D0
Entry Wire Line
6250 2000 6350 1900
Entry Wire Line
6250 1900 6350 1800
Entry Wire Line
6250 1800 6350 1700
Entry Wire Line
6250 1700 6350 1600
Entry Wire Line
4850 2000 4950 1900
Entry Wire Line
4850 1900 4950 1800
Entry Wire Line
4850 1800 4950 1700
Entry Wire Line
4850 1700 4950 1600
Text Label 6100 2000 0 60 ~ 0
D7
Text Label 6100 1900 0 60 ~ 0
D5
Text Label 6100 1800 0 60 ~ 0
D3
Text Label 6100 1700 0 60 ~ 0
D1
Text Label 4950 2000 0 60 ~ 0
D6
Text Label 4950 1900 0 60 ~ 0
D4
Text Label 4950 1800 0 60 ~ 0
D2
Text Label 4950 1700 0 60 ~ 0
D0
$Comp
L GND #PWR011
U 1 1 4DBBE106
P 9850 4000
F 0 "#PWR011" H 9850 4000 30 0001 C CNN
F 1 "GND" H 9850 3930 30 0001 C CNN
1 9850 4000
1 0 0 -1
$EndComp
Text GLabel 4950 2900 0 60 Input ~ 0
ROMDIS
Entry Wire Line
10750 2250 10850 2150
Entry Wire Line
10750 2150 10850 2050
Entry Wire Line
10750 2050 10850 1950
Entry Wire Line
10750 1950 10850 1850
Entry Wire Line
10750 1850 10850 1750
Entry Wire Line
10750 1750 10850 1650
Entry Wire Line
10750 1650 10850 1550
Entry Wire Line
10750 1550 10850 1450
Text Label 10550 1750 0 60 ~ 0
D7
Text Label 10550 1950 0 60 ~ 0
D6
Text Label 10550 1650 0 60 ~ 0
D5
Text Label 10550 1850 0 60 ~ 0
D4
Text Label 10550 2050 0 60 ~ 0
D3
Text Label 10550 1550 0 60 ~ 0
D2
Text Label 10550 2150 0 60 ~ 0
D1
Text Label 10550 2250 0 60 ~ 0
D0
$Comp
L VCC #PWR012
U 1 1 4CECEA88
P 8150 2150
F 0 "#PWR012" H 8150 2250 30 0001 C CNN
F 1 "VCC" H 8150 2250 30 0000 C CNN
1 8150 2150
1 0 0 -1
$EndComp
$Comp
L GND #PWR013
U 1 1 4CECE95E
P 7700 3950
F 0 "#PWR013" H 7700 3950 30 0001 C CNN
F 1 "GND" H 7700 3880 30 0001 C CNN
1 7700 3950
1 0 0 -1
$EndComp
Text Notes 1600 5050 0 60 ~ 0
register
Text Notes 1700 1500 1 60 ~ 0
demultiplexer
Entry Wire Line
800 1100 900 1200
Entry Wire Line
800 1000 900 1100
Entry Wire Line
800 900 900 1000
Text GLabel 3850 2200 1 60 Input ~ 0
A3
Text GLabel 1050 3050 0 60 Input ~ 0
_A3
Text GLabel 6500 5350 2 60 Output ~ 0
_A3
Text GLabel 4850 5250 0 60 Input ~ 0
A3
Text GLabel 1000 3350 0 60 Input ~ 0
WRITE_EN
Text Notes 6400 4200 0 60 ~ 0
Rom active notification
Text Notes 4900 3600 0 60 ~ 0
Write detection
Text GLabel 5200 4350 0 60 Input ~ 0
ROM_ACTIVE
Text GLabel 5200 3750 0 60 Input ~ 0
WR
$Comp
L 74LS00 U1
U 3 1 4CA8A6F2
P 5600 5350
F 0 "U1" H 5600 5400 60 0000 C CNN
F 1 "74LS00" H 5600 5250 60 0000 C CNN
3 5600 5350
1 0 0 -1
$EndComp
Text GLabel 8850 3550 0 60 Input ~ 0
ROM_ACTIVE
Text GLabel 6850 3850 2 60 Output ~ 0
WRITE_EN
Text GLabel 8750 4550 2 60 Output ~ 0
ROMDIS
$Comp
L 74LS00 U1
U 2 1 4CA89EED
P 7400 4550
F 0 "U1" H 7400 4600 60 0000 C CNN
F 1 "74LS00" H 7400 4450 60 0000 C CNN
2 7400 4550
1 0 0 -1
$EndComp
Text GLabel 5200 4550 0 60 Input ~ 0
ROMEN
Text GLabel 5200 3950 0 60 Input ~ 0
ROM_ACTIVE
Text GLabel 950 1600 0 60 Input ~ 0
MREQ
Text GLabel 950 1500 0 60 Input ~ 0
ROM_ACC
Text Notes 650 6900 0 60 ~ 0
Rom access detection
Text GLabel 2450 7150 2 60 Output ~ 0
ROM_ACC
NoConn ~ 6100 2900
NoConn ~ 6100 3000
NoConn ~ 6100 3100
NoConn ~ 6100 3200
NoConn ~ 6100 800
NoConn ~ 4950 800
NoConn ~ 4950 2200
NoConn ~ 4950 2500
NoConn ~ 4950 2600
NoConn ~ 4950 2700
NoConn ~ 4950 2800
NoConn ~ 4950 3000
NoConn ~ 4950 3100
Text Notes 4700 550 0 60 ~ 0
\ncpc connector
Text Notes 600 5700 0 60 ~ 0
OUT Decoder
Text GLabel 900 6600 0 60 Input ~ 0
WR
Text GLabel 4900 2400 0 60 Output ~ 0
WR
$Comp
L GND #PWR014
U 1 1 4CA89326
P 4900 3300
F 0 "#PWR014" H 4900 3300 30 0001 C CNN
F 1 "GND" H 4900 3230 30 0001 C CNN
1 4900 3300
1 0 0 -1
$EndComp
Text GLabel 4900 2300 0 60 Output ~ 0
IORQ
Text GLabel 900 6400 0 60 Input ~ 0
IORQ
$Comp
L 74LS32 U3
U 2 1 4CA89162
P 1700 6500
F 0 "U3" H 1700 6550 60 0000 C CNN
F 1 "74LS32" H 1700 6450 60 0000 C CNN
2 1700 6500
1 0 0 -1
$EndComp
Text GLabel 2450 5950 2 60 Output ~ 0
ROMSEL
Text GLabel 900 5250 0 60 Input ~ 0
ROMSEL
$Comp
L 74LS32 U3
U 1 1 4CA89099
P 1700 5950
F 0 "U3" H 1700 6000 60 0000 C CNN
F 1 "74LS32" H 1700 5900 60 0000 C CNN
1 1700 5950
1 0 0 -1
$EndComp
Text Notes 2800 4550 0 60 ~ 0
To individual rom select
Text Notes 2800 4950 0 60 ~ 0
To address comparator
Entry Wire Line
2650 4650 2750 4750
Entry Wire Line
2650 4550 2750 4650
Entry Wire Line
2650 4450 2750 4550
Entry Wire Line
2650 4350 2750 4450
$Comp
L GND #PWR015
U 1 1 4CA88AFC
P 900 5400
F 0 "#PWR015" H 900 5400 30 0001 C CNN
F 1 "GND" H 900 5330 30 0001 C CNN
1 900 5400
1 0 0 -1
$EndComp
Entry Wire Line
2650 5050 2750 5150
Entry Wire Line
2650 4950 2750 5050
Entry Wire Line
2650 4750 2750 4850
Text Notes 1150 4200 0 60 ~ 0
Current ROM number storage
Text GLabel 8850 3650 0 60 Input ~ 0
WRITE
$Comp
L VCC #PWR016
U 1 1 4CA884DF
P 900 3600
F 0 "#PWR016" H 900 3700 30 0001 C CNN
F 1 "VCC" H 900 3700 30 0000 C CNN
1 900 3600
0 -1 -1 0
$EndComp
Text GLabel 1550 3700 3 60 Output ~ 0
WRITE
Text Notes 2500 2550 0 60 ~ 0
comparator
$Comp
L GND #PWR017
U 1 1 4CA882D1
P 900 2850
F 0 "#PWR017" H 900 2850 30 0001 C CNN
F 1 "GND" H 900 2780 30 0001 C CNN
1 900 2850
1 0 0 -1
$EndComp
$Comp
L VCC #PWR018
U 1 1 4CA88282
P 3800 850
F 0 "#PWR018" H 3800 950 30 0001 C CNN
F 1 "VCC" H 3800 950 30 0000 C CNN
1 3800 850
1 0 0 -1
$EndComp
Text GLabel 3950 1600 2 60 Output ~ 0
ROM_ACTIVE
Text GLabel 3650 3450 2 60 Output ~ 0
MATCH
Text GLabel 950 1400 0 60 Input ~ 0
MATCH
$Comp
L 74LS32 U3
U 3 1 4CA87CE5
P 5900 4450
F 0 "U3" H 5900 4500 60 0000 C CNN
F 1 "74LS32" H 5900 4400 60 0000 C CNN
3 5900 4450
1 0 0 -1
$EndComp
Text Notes 1800 650 0 60 ~ 0
Individual ROM selection
$Comp
L BATTERY BT1
U 1 1 4CA87798
P 4700 5800
F 0 "BT1" H 4700 6000 50 0000 C CNN
F 1 "CR2032" H 4700 5610 50 0000 C CNN
1 4700 5800
1 0 0 -1
$EndComp
$Comp
L SRAM_512KO U6
U 1 1 4CA871FB
P 9850 2650
F 0 "U6" H 9950 3850 70 0000 L CNN
F 1 "SRAM_512KO" H 9950 1450 70 0000 L CNN
1 9850 2650
1 0 0 -1
$EndComp
$Comp
L BC307 Q1
U 1 1 4CA87175
P 8000 3700
F 0 "Q1" H 8200 3600 50 0000 C CNN
F 1 "BC307" H 8250 3850 50 0000 C CNN
1 8000 3700
0 1 1 0
$EndComp
$Comp
L C C4
U 1 1 4CA87152
P 6850 6500
F 0 "C4" H 6900 6600 50 0000 L CNN
F 1 "C" H 6900 6400 50 0000 L CNN
1 6850 6500
1 0 0 -1
$EndComp
$Comp
L C C3
U 1 1 4CA87151
P 6600 6500
F 0 "C3" H 6650 6600 50 0000 L CNN
F 1 "C" H 6650 6400 50 0000 L CNN
1 6600 6500
1 0 0 -1
$EndComp
$Comp
L CP1 C1
U 1 1 4CA87148
P 7700 2950
F 0 "C1" H 7750 3050 50 0000 L CNN
F 1 "1µF" H 7750 2850 50 0000 L CNN
1 7700 2950
0 1 1 0
$EndComp
$Comp
L CP1 C5
U 1 1 4CA87146
P 6100 6550
F 0 "C5" H 6150 6650 50 0000 L CNN
F 1 "CP1" H 6150 6450 50 0000 L CNN
1 6100 6550
1 0 0 -1
$EndComp
$Comp
L CONN_25X2 P1
U 1 1 4CA8712F
P 5550 2000
F 0 "P1" H 5550 3300 60 0000 C CNN
F 1 "CONN_25X2" V 5550 2000 50 0000 C CNN
1 5550 2000
1 0 0 -1
$EndComp
$Comp
L C C2
U 1 1 4CA870EF
P 3350 6000
F 0 "C2" H 3400 6100 50 0000 L CNN
F 1 "C" H 3400 5900 50 0000 L CNN
1 3350 6000
1 0 0 -1
$EndComp
$Comp
L R R9
U 1 1 4CA870E2
P 3850 2600
F 0 "R9" V 3930 2600 50 0000 C CNN
F 1 "R" V 3850 2600 50 0000 C CNN
1 3850 2600
1 0 0 -1
$EndComp
$Comp
L R R1
U 1 1 4CA870DC
P 7750 3350
F 0 "R1" V 7830 3350 50 0000 C CNN
F 1 "10K" V 7750 3350 50 0000 C CNN
1 7750 3350
0 1 1 0
$EndComp
$Comp
L R R7
U 1 1 4CA870DB
P 8300 2550
F 0 "R7" V 8380 2550 50 0000 C CNN
F 1 "1K" V 8300 2550 50 0000 C CNN
1 8300 2550
1 0 0 -1
$EndComp
$Comp
L R R10
U 1 1 4CA870DA
P 8600 2900
F 0 "R10" V 8680 2900 50 0000 C CNN
F 1 "R" V 8600 2900 50 0000 C CNN
1 8600 2900
1 0 0 -1
$EndComp
$Comp
L R R2
U 1 1 4CA870D9
P 1300 3600
F 0 "R2" V 1380 3600 50 0000 C CNN
F 1 "10KR" V 1300 3600 50 0000 C CNN
1 1300 3600
0 1 1 0
$EndComp
$Comp
L R R6
U 1 1 4CA870D8
P 1900 2700
F 0 "R6" V 1980 2700 50 0000 C CNN
F 1 "10KR" V 1900 2700 50 0000 C CNN
1 1900 2700
1 0 0 -1
$EndComp
$Comp
L R R5
U 1 1 4CA870D0
P 1800 2600
F 0 "R5" V 1880 2600 50 0000 C CNN
F 1 "10KR" V 1800 2600 50 0000 C CNN
1 1800 2600
1 0 0 -1
$EndComp
$Comp
L R R4
U 1 1 4CA870CB
P 1700 2500
F 0 "R4" V 1780 2500 50 0000 C CNN
F 1 "10KR" V 1700 2500 50 0000 C CNN
1 1700 2500
1 0 0 -1
$EndComp
$Comp
L R R3
U 1 1 4CA870C7
P 1600 2400
F 0 "R3" V 1680 2400 50 0000 C CNN
F 1 "10KR" V 1600 2400 50 0000 C CNN
1 1600 2400
1 0 0 -1
$EndComp
$Comp
L R R8
U 1 1 4CA870C2
P 3800 1250
F 0 "R8" V 3880 1250 50 0000 C CNN
F 1 "R" V 3800 1250 50 0000 C CNN
1 3800 1250
1 0 0 -1
$EndComp
$Comp
L DIODE D11
U 1 1 4CA870B3
P 3800 6000
F 0 "D11" H 3800 6100 40 0000 C CNN
F 1 "DIODE" H 3800 5900 40 0000 C CNN
1 3800 6000
0 -1 -1 0
$EndComp
$Comp
L DIODE D1
U 1 1 4CA870AF
P 8000 2550
F 0 "D1" H 8000 2650 40 0000 C CNN
F 1 "1N4148" H 8000 2450 40 0000 C CNN
1 8000 2550
0 -1 -1 0
$EndComp
$Comp
L DIODE D12
U 1 1 4CA870AC
P 4100 5800
F 0 "D12" H 4100 5900 40 0000 C CNN
F 1 "BAT85" H 4100 5700 40 0000 C CNN
1 4100 5800
-1 0 0 1
$EndComp
$Comp
L DIODE D13
U 1 1 4CA870AA
P 8400 4550
F 0 "D13" H 8400 4650 40 0000 C CNN
F 1 "DIODE" H 8400 4450 40 0000 C CNN
1 8400 4550
1 0 0 -1
$EndComp
$Comp
L DIODE D2
U 1 1 4CA870A4
P 8000 3150
F 0 "D2" H 8000 3250 40 0000 C CNN
F 1 "BZX55C" H 8000 3050 40 0000 C CNN
1 8000 3150
0 -1 -1 0
$EndComp
$Comp
L DIODE D10
U 1 1 4CA8709A
P 3350 1600
F 0 "D10" H 3350 1700 40 0000 C CNN
F 1 "DIODE" H 3350 1500 40 0000 C CNN
1 3350 1600
-1 0 0 -1
$EndComp
$Comp
L DIODE D9
U 1 1 4CA87098
P 3350 1500
F 0 "D9" H 3350 1600 40 0000 C CNN
F 1 "DIODE" H 3350 1400 40 0000 C CNN
1 3350 1500
-1 0 0 -1
$EndComp
$Comp
L DIODE D8
U 1 1 4CA87095
P 3350 1400
F 0 "D8" H 3350 1500 40 0000 C CNN
F 1 "DIODE" H 3350 1300 40 0000 C CNN
1 3350 1400
-1 0 0 -1
$EndComp
$Comp
L DIODE D7
U 1 1 4CA87093
P 3350 1300
F 0 "D7" H 3350 1400 40 0000 C CNN
F 1 "DIODE" H 3350 1200 40 0000 C CNN
1 3350 1300
-1 0 0 -1
$EndComp
$Comp
L DIODE D6
U 1 1 4CA87092
P 3350 1200
F 0 "D6" H 3350 1300 40 0000 C CNN
F 1 "DIODE" H 3350 1100 40 0000 C CNN
1 3350 1200
-1 0 0 -1
$EndComp
$Comp
L DIODE D5
U 1 1 4CA87090
P 3350 1100
F 0 "D5" H 3350 1200 40 0000 C CNN
F 1 "DIODE" H 3350 1000 40 0000 C CNN
1 3350 1100
-1 0 0 -1
$EndComp
$Comp
L DIODE D4
U 1 1 4CA8708D
P 3350 1000
F 0 "D4" H 3350 1100 40 0000 C CNN
F 1 "DIODE" H 3350 900 40 0000 C CNN
1 3350 1000
-1 0 0 -1
$EndComp
$Comp
L DIODE D3
U 1 1 4CA87086
P 3350 900
F 0 "D3" H 3350 1000 40 0000 C CNN
F 1 "DIODE" H 3350 800 40 0000 C CNN
1 3350 900
-1 0 0 -1
$EndComp
$Comp
L DIPS_08 SW_CFG1
U 1 1 4CA87071
P 1350 3000
F 0 "SW_CFG1" V 900 3000 60 0000 C CNN
F 1 "DIPS_08" V 1800 3000 60 0000 C CNN
1 1350 3000
0 -1 1 0
$EndComp
$Comp
L DIPS_08 SW_ROMEN1
U 1 1 4CA8706E
P 2600 1250
F 0 "SW_ROMEN1" V 2150 1250 60 0000 C CNN
F 1 "DIPS_08" V 3050 1250 60 0000 C CNN
1 2600 1250
0 1 1 0
$EndComp
$Comp
L 74LS85 U5
U 1 1 4CA86E70
P 2750 3050
F 0 "U5" H 2800 3150 60 0000 C CNN
F 1 "74LS85" H 2800 3000 60 0000 C CNN
1 2750 3050
1 0 0 -1
$EndComp
$Comp
L 74LS374 U4
U 1 1 4CA86E68
P 1750 4850
F 0 "U4" H 1750 4850 60 0000 C CNN
F 1 "74LS374" H 1800 4500 60 0000 C CNN
1 1750 4850
1 0 0 -1
$EndComp
$Comp
L 74LS32 U3
U 4 1 4CA86E60
P 5950 3850
F 0 "U3" H 5950 3900 60 0000 C CNN
F 1 "74LS32" H 5950 3800 60 0000 C CNN
4 5950 3850
1 0 0 -1
$EndComp
$Comp
L 74LS00 U1
U 1 1 4CA86E52
P 1650 7150
F 0 "U1" H 1650 7200 60 0000 C CNN
F 1 "74LS00" H 1650 7050 60 0000 C CNN
1 1650 7150
1 0 0 -1
$EndComp
$Comp
L 74LS138 U2
U 1 1 4CA86E2A
P 1650 1250
F 0 "U2" H 1750 1750 60 0000 C CNN
F 1 "74LS138" H 1800 701 60 0000 C CNN
1 1650 1250
1 0 0 -1
$EndComp
$EndSCHEMATC