ram-decode.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 11 16
Title "Wugo PCII System Board"
Date ""
Rev "1.0"
Comp ""
Comment1 "Schematics Copyright (c) 2020 David J. Fiddes <D.J@fiddes.net>"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 74xx:74LS138 IC?
U 1 1 5ED7C308
P 6400 3300
AR Path="/5F458923/5ED7C308" Ref="IC?"  Part="1" 
AR Path="/5ED7BC4B/5ED7C308" Ref="IC98"  Part="1" 
F 0 "IC98" H 6100 3800 50  0000 C CNN
F 1 "74LS138" H 6650 3800 50  0000 C CNN
F 2 "" H 6400 3300 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS138" H 6400 3300 50  0001 C CNN
	1    6400 3300
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS138 IC?
U 1 1 5ED7C30E
P 6400 1550
AR Path="/5F458923/5ED7C30E" Ref="IC?"  Part="1" 
AR Path="/5ED7BC4B/5ED7C30E" Ref="IC99"  Part="1" 
F 0 "IC99" H 6150 2050 50  0000 C CNN
F 1 "74LS138" H 6700 2050 50  0000 C CNN
F 2 "" H 6400 1550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS138" H 6400 1550 50  0001 C CNN
	1    6400 1550
	1    0    0    -1  
$EndComp
$Comp
L PCII-System-Board-Custom-Parts:TBP24S10 IC100
U 1 1 5ED7EC27
P 4450 2900
F 0 "IC100" H 4200 3600 50  0000 C CNN
F 1 "TBP24S10" H 4700 3600 50  0000 C CNN
F 2 "" H 4450 2900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 4450 2900 50  0001 C CNN
	1    4450 2900
	1    0    0    -1  
$EndComp
Text Label 3900 2400 0    50   ~ 0
BA16
Text Label 3900 2500 0    50   ~ 0
BA17
Text Label 3900 2600 0    50   ~ 0
BA18
Text Label 3900 2700 0    50   ~ 0
BA19
Wire Wire Line
	3900 2400 4150 2400
Wire Wire Line
	3900 2500 4150 2500
Wire Wire Line
	3900 2600 4150 2600
Wire Wire Line
	3900 2700 4150 2700
Wire Wire Line
	4150 3000 3900 3000
Wire Wire Line
	3900 3000 3900 3100
Wire Wire Line
	3900 3600 4450 3600
$Comp
L power:GND #PWR079
U 1 1 5ED82346
P 4450 3650
F 0 "#PWR079" H 4450 3400 50  0001 C CNN
F 1 "GND" H 4455 3477 50  0000 C CNN
F 2 "" H 4450 3650 50  0001 C CNN
F 3 "" H 4450 3650 50  0001 C CNN
	1    4450 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	4450 3600 4450 3650
Connection ~ 4450 3600
$Comp
L 74xx:74LS74 IC103
U 1 1 5ED838B5
P 3100 2900
F 0 "IC103" H 2900 3200 50  0000 C CNN
F 1 "74LS74" H 3300 3200 50  0000 C CNN
F 2 "" H 3100 2900 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 3100 2900 50  0001 C CNN
	1    3100 2900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4750 3000 5100 3000
Wire Wire Line
	4150 2800 3400 2800
Wire Wire Line
	4750 3100 5250 3100
$Comp
L power:+5V #PWR080
U 1 1 5ED90218
P 5750 2650
F 0 "#PWR080" H 5750 2500 50  0001 C CNN
F 1 "+5V" H 5765 2823 50  0000 C CNN
F 2 "" H 5750 2650 50  0001 C CNN
F 3 "" H 5750 2650 50  0001 C CNN
	1    5750 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	5900 3200 5750 3200
Wire Wire Line
	5750 3200 5750 2700
$Comp
L power:GND #PWR082
U 1 1 5ED910A9
P 6400 4050
F 0 "#PWR082" H 6400 3800 50  0001 C CNN
F 1 "GND" H 6405 3877 50  0000 C CNN
F 2 "" H 6400 4050 50  0001 C CNN
F 3 "" H 6400 4050 50  0001 C CNN
	1    6400 4050
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 4000 6400 4050
Wire Wire Line
	5900 3600 5750 3600
Wire Wire Line
	5750 3600 5750 4000
Wire Wire Line
	5750 4000 6400 4000
Connection ~ 6400 4000
Wire Wire Line
	5900 3700 5400 3700
Wire Wire Line
	5400 3700 5400 1950
Wire Wire Line
	5400 1950 5900 1950
Wire Wire Line
	6400 2700 5750 2700
Connection ~ 5750 2700
Wire Wire Line
	5750 2700 5750 2650
Wire Wire Line
	6900 1250 7550 1250
Wire Wire Line
	6900 1350 7200 1350
Wire Wire Line
	6900 1450 7550 1450
Wire Wire Line
	6900 1550 7200 1550
Wire Wire Line
	5900 1750 4850 1750
Wire Wire Line
	4850 1750 4850 2900
Wire Wire Line
	4850 2900 4750 2900
$Comp
L 74xx:74LS08 IC81
U 4 1 5ED9872C
P 7850 3800
F 0 "IC81" H 7850 4125 50  0000 C CNN
F 1 "74LS08" H 7850 4034 50  0000 C CNN
F 2 "" H 7850 3800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7850 3800 50  0001 C CNN
	4    7850 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	7550 3700 6900 3700
$Comp
L 74xx:74LS08 IC81
U 3 1 5ED9CB1A
P 7850 3250
F 0 "IC81" H 7850 3575 50  0000 C CNN
F 1 "74LS08" H 7850 3484 50  0000 C CNN
F 2 "" H 7850 3250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7850 3250 50  0001 C CNN
	3    7850 3250
	1    0    0    -1  
$EndComp
Wire Wire Line
	7550 3150 7300 3150
Wire Wire Line
	7300 3150 7300 3600
Wire Wire Line
	7300 3600 6900 3600
$Comp
L 74xx:74LS08 IC81
U 2 1 5ED9E82B
P 7850 2650
F 0 "IC81" H 7850 2975 50  0000 C CNN
F 1 "74LS08" H 7850 2884 50  0000 C CNN
F 2 "" H 7850 2650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7850 2650 50  0001 C CNN
	2    7850 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	7550 2550 7200 2550
Wire Wire Line
	7200 2550 7200 3500
Wire Wire Line
	7200 3500 6900 3500
$Comp
L 74xx:74LS08 IC81
U 1 1 5EDA1EB6
P 7850 2050
F 0 "IC81" H 7850 2375 50  0000 C CNN
F 1 "74LS08" H 7850 2284 50  0000 C CNN
F 2 "" H 7850 2050 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7850 2050 50  0001 C CNN
	1    7850 2050
	1    0    0    -1  
$EndComp
Wire Wire Line
	7550 1950 7100 1950
Wire Wire Line
	7100 1950 7100 3400
Wire Wire Line
	7100 3400 6900 3400
NoConn ~ 6900 3000
NoConn ~ 6900 3100
NoConn ~ 6900 3200
NoConn ~ 6900 3300
Wire Wire Line
	7550 2150 7400 2150
Wire Wire Line
	7400 2150 7400 2750
Wire Wire Line
	7400 2750 7550 2750
Wire Wire Line
	7400 2750 7400 3350
Wire Wire Line
	7400 3350 7550 3350
Connection ~ 7400 2750
Wire Wire Line
	7400 3350 7400 3900
Wire Wire Line
	7400 3900 7550 3900
Connection ~ 7400 3350
Wire Wire Line
	8150 2050 8450 2050
Wire Wire Line
	8150 2650 8450 2650
Wire Wire Line
	8150 3250 8450 3250
Wire Wire Line
	8150 3800 8450 3800
Wire Wire Line
	7400 3900 7400 4600
Connection ~ 7400 3900
$Comp
L 74xx:74LS125 IC102
U 1 1 5EDD084B
P 10550 1550
F 0 "IC102" H 10550 1867 50  0000 C CNN
F 1 "74LS125" H 10550 1776 50  0000 C CNN
F 2 "" H 10550 1550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 10550 1550 50  0001 C CNN
	1    10550 1550
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 IC102
U 2 1 5EDD0F05
P 10500 2300
F 0 "IC102" H 10500 2617 50  0000 C CNN
F 1 "74LS125" H 10500 2526 50  0000 C CNN
F 2 "" H 10500 2300 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 10500 2300 50  0001 C CNN
	2    10500 2300
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 IC102
U 3 1 5EDD17CB
P 10450 2950
F 0 "IC102" H 10450 3267 50  0000 C CNN
F 1 "74LS125" H 10450 3176 50  0000 C CNN
F 2 "" H 10450 2950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 10450 2950 50  0001 C CNN
	3    10450 2950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 IC102
U 4 1 5EDD2033
P 10500 3650
F 0 "IC102" H 10500 3967 50  0000 C CNN
F 1 "74LS125" H 10500 3876 50  0000 C CNN
F 2 "" H 10500 3650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 10500 3650 50  0001 C CNN
	4    10500 3650
	1    0    0    -1  
$EndComp
Text Label 10050 1550 0    50   ~ 0
XA16
$Comp
L 74xx:74LS74 IC103
U 2 1 5EDDFF05
P 3100 4050
F 0 "IC103" H 2900 4350 50  0000 C CNN
F 1 "74LS74" H 3300 4350 50  0000 C CNN
F 2 "" H 3100 4050 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 3100 4050 50  0001 C CNN
	2    3100 4050
	1    0    0    -1  
$EndComp
Text Label 2550 3950 0    50   ~ 0
XD1
Wire Wire Line
	2550 3950 2800 3950
Text Label 2550 2800 0    50   ~ 0
XD0
Wire Wire Line
	2550 2800 2800 2800
$Comp
L power:+5V #PWR077
U 1 1 5EE186E3
P 3100 2500
F 0 "#PWR077" H 3100 2350 50  0001 C CNN
F 1 "+5V" H 3115 2673 50  0000 C CNN
F 2 "" H 3100 2500 50  0001 C CNN
F 3 "" H 3100 2500 50  0001 C CNN
	1    3100 2500
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR078
U 1 1 5EE1B6E1
P 3100 3650
F 0 "#PWR078" H 3100 3500 50  0001 C CNN
F 1 "+5V" H 3115 3823 50  0000 C CNN
F 2 "" H 3100 3650 50  0001 C CNN
F 3 "" H 3100 3650 50  0001 C CNN
	1    3100 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	3100 3650 3100 3750
Wire Wire Line
	3100 2500 3100 2600
Wire Wire Line
	2800 2900 2750 2900
Wire Wire Line
	2750 2900 2750 4050
Wire Wire Line
	2750 4050 2800 4050
Wire Wire Line
	2350 4050 2750 4050
Connection ~ 2750 4050
$Comp
L 74xx:74LS04 IC8
U 2 1 5EE24758
P 2050 4050
F 0 "IC8" H 2050 4367 50  0000 C CNN
F 1 "74LS04" H 2050 4276 50  0000 C CNN
F 2 "" H 2050 4050 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 2050 4050 50  0001 C CNN
	2    2050 4050
	1    0    0    -1  
$EndComp
$Comp
L PCII-System-Board-Custom-Parts:DT14CB201 DELAYLINE1
U 1 1 5EE3EE49
P 6400 5750
F 0 "DELAYLINE1" H 6100 6350 50  0000 C CNN
F 1 "DT14CB201" H 6700 6350 50  0000 C CNN
F 2 "" H 6400 5750 50  0001 C CNN
F 3 "" H 6400 5750 50  0001 C CNN
	1    6400 5750
	1    0    0    -1  
$EndComp
Wire Wire Line
	5900 3500 5550 3500
Wire Wire Line
	5550 3500 5550 5750
Wire Wire Line
	5550 5750 6100 5750
$Comp
L 74xx:74LS20 IC?
U 2 1 5EE9EC96
P 3250 5750
AR Path="/5EC54617/5EE9EC96" Ref="IC?"  Part="2" 
AR Path="/5ED7BC4B/5EE9EC96" Ref="IC67"  Part="2" 
F 0 "IC67" H 3250 6125 50  0000 C CNN
F 1 "74LS20" H 3250 6034 50  0000 C CNN
F 2 "" H 3250 5750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS20" H 3250 5750 50  0001 C CNN
	2    3250 5750
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5EE9EC9C
P 2750 5900
AR Path="/5EC54617/5EE9EC9C" Ref="#PWR?"  Part="1" 
AR Path="/5ED7BC4B/5EE9EC9C" Ref="#PWR076"  Part="1" 
F 0 "#PWR076" H 2750 5750 50  0001 C CNN
F 1 "+5V" H 2600 5950 50  0000 C CNN
F 2 "" H 2750 5900 50  0001 C CNN
F 3 "" H 2750 5900 50  0001 C CNN
	1    2750 5900
	1    0    0    -1  
$EndComp
Wire Wire Line
	2950 5800 2950 5900
Wire Wire Line
	2750 5900 2950 5900
Connection ~ 2950 5900
$Comp
L 74xx:74LS04 IC?
U 1 1 5EE9ECA5
P 3250 5000
AR Path="/5EC54617/5EE9ECA5" Ref="IC?"  Part="1" 
AR Path="/5ED7BC4B/5EE9ECA5" Ref="IC52"  Part="1" 
F 0 "IC52" H 3250 5317 50  0000 C CNN
F 1 "74LS04" H 3250 5226 50  0000 C CNN
F 2 "" H 3250 5000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 3250 5000 50  0001 C CNN
	1    3250 5000
	1    0    0    -1  
$EndComp
Wire Wire Line
	2500 5000 2950 5000
$Comp
L 74xx:74LS00 IC?
U 2 1 5EE9ECAD
P 4300 4900
AR Path="/5EC54617/5EE9ECAD" Ref="IC?"  Part="2" 
AR Path="/5ED7BC4B/5EE9ECAD" Ref="IC70"  Part="2" 
F 0 "IC70" H 4300 5225 50  0000 C CNN
F 1 "74S00" H 4300 5134 50  0000 C CNN
F 2 "" H 4300 4900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 4300 4900 50  0001 C CNN
	2    4300 4900
	1    0    0    1   
$EndComp
Wire Wire Line
	3550 5000 3650 5000
Wire Wire Line
	3550 5750 3850 5750
Connection ~ 5550 5750
Text Label 3750 5750 2    50   ~ 0
~RAS~
Wire Wire Line
	4600 4900 6000 4900
Wire Wire Line
	6000 4900 6000 4600
Wire Wire Line
	6000 4600 7400 4600
Wire Wire Line
	4000 4800 3850 4800
Wire Wire Line
	3850 4800 3850 5750
Connection ~ 3850 5750
Wire Wire Line
	3850 5750 5550 5750
Wire Wire Line
	3650 5000 3650 4300
Wire Wire Line
	3650 4300 5400 4300
Wire Wire Line
	5400 4300 5400 3700
Connection ~ 3650 5000
Wire Wire Line
	3650 5000 4000 5000
Connection ~ 5400 3700
Text Label 4200 4300 2    50   ~ 0
DACK0BRD
Wire Wire Line
	6700 5550 7100 5550
$Comp
L 74xx:74LS00 IC?
U 1 1 5EF78B58
P 4300 1500
AR Path="/5EC54617/5EF78B58" Ref="IC?"  Part="2" 
AR Path="/5ED7BC4B/5EF78B58" Ref="IC70"  Part="1" 
F 0 "IC70" H 4300 1825 50  0000 C CNN
F 1 "74S00" H 4300 1734 50  0000 C CNN
F 2 "" H 4300 1500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls00" H 4300 1500 50  0001 C CNN
	1    4300 1500
	1    0    0    1   
$EndComp
Wire Wire Line
	5900 1850 5400 1850
Wire Wire Line
	5400 1850 5400 1500
Wire Wire Line
	5400 1500 4600 1500
Text Label 7100 5650 2    50   ~ 0
CAS_DELAY
Wire Wire Line
	6700 5650 7100 5650
Text Label 3500 1400 0    50   ~ 0
CAS_DELAY
Wire Wire Line
	3500 1400 4000 1400
Text Label 3500 1600 0    50   ~ 0
~RAS~
Wire Wire Line
	3500 1600 4000 1600
Wire Wire Line
	2450 5600 2950 5600
Wire Wire Line
	2800 5700 2950 5700
NoConn ~ 6700 5750
NoConn ~ 6700 5850
NoConn ~ 6700 5950
Wire Wire Line
	10050 1550 10250 1550
Text Label 5150 3200 2    50   ~ 0
PROM_Q3
Wire Wire Line
	5150 3200 4750 3200
Text Label 11000 1800 2    50   ~ 0
PROM_Q3
Wire Wire Line
	10550 1800 11000 1800
Wire Wire Line
	3100 3200 3100 3350
Wire Wire Line
	3100 3350 2400 3350
Wire Wire Line
	2400 3350 2400 4350
Wire Wire Line
	2400 4350 3100 4350
$Comp
L power:GND #PWR081
U 1 1 5F0F5686
P 6400 2300
F 0 "#PWR081" H 6400 2050 50  0001 C CNN
F 1 "GND" H 6405 2127 50  0000 C CNN
F 2 "" H 6400 2300 50  0001 C CNN
F 3 "" H 6400 2300 50  0001 C CNN
	1    6400 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 2250 6400 2300
Wire Wire Line
	5900 1450 5700 1450
Wire Wire Line
	5700 1450 5700 2250
Wire Wire Line
	5700 2250 6400 2250
Connection ~ 6400 2250
Wire Wire Line
	5900 1350 5250 1350
Wire Wire Line
	5250 1350 5250 3100
Connection ~ 5250 3100
Wire Wire Line
	5250 3100 5900 3100
Wire Wire Line
	5900 1250 5100 1250
Wire Wire Line
	5100 1250 5100 3000
Connection ~ 5100 3000
Wire Wire Line
	5100 3000 5900 3000
Wire Wire Line
	4150 3300 3900 3300
Connection ~ 3900 3300
Wire Wire Line
	3900 3300 3900 3400
Wire Wire Line
	4150 3400 3900 3400
Connection ~ 3900 3400
Wire Wire Line
	3900 3400 3900 3600
Wire Wire Line
	4150 2900 3900 2900
Wire Wire Line
	3900 2900 3900 3000
Connection ~ 3900 3000
Wire Wire Line
	4150 3100 3900 3100
Connection ~ 3900 3100
Wire Wire Line
	3900 3100 3900 3300
NoConn ~ 6900 1650
NoConn ~ 6900 1750
NoConn ~ 6900 1850
NoConn ~ 6900 1950
Wire Wire Line
	1100 4050 1750 4050
Wire Wire Line
	1100 4350 2400 4350
Connection ~ 2400 4350
$Comp
L 74xx:74LS04 IC?
U 1 1 5F90FA13
P 5200 850
AR Path="/5F458923/5F90FA13" Ref="IC?"  Part="1" 
AR Path="/5ED7BC4B/5F90FA13" Ref="IC85"  Part="1" 
F 0 "IC85" H 5200 1167 50  0000 C CNN
F 1 "74LS04" H 5200 1076 50  0000 C CNN
F 2 "" H 5200 850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 5200 850 50  0001 C CNN
	1    5200 850 
	1    0    0    -1  
$EndComp
Wire Wire Line
	5500 850  5600 850 
Wire Wire Line
	4900 850  4850 850 
Wire Wire Line
	4850 850  4850 1750
Connection ~ 4850 1750
Text Label 10050 2300 0    50   ~ 0
XA17
Wire Wire Line
	10050 2300 10200 2300
$Comp
L 74xx:74LS04 IC8
U 4 1 5EDD4081
P 10450 5100
F 0 "IC8" H 10450 5417 50  0000 C CNN
F 1 "74LS04" H 10450 5326 50  0000 C CNN
F 2 "" H 10450 5100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 10450 5100 50  0001 C CNN
	4    10450 5100
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS04 IC8
U 3 1 5EDDC76B
P 9450 2600
F 0 "IC8" H 9450 2917 50  0000 C CNN
F 1 "74LS04" H 9450 2826 50  0000 C CNN
F 2 "" H 9450 2600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 9450 2600 50  0001 C CNN
	3    9450 2600
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS04 IC8
U 1 1 5EDE3DBA
P 10450 4600
F 0 "IC8" H 10450 4917 50  0000 C CNN
F 1 "74LS04" H 10450 4826 50  0000 C CNN
F 2 "" H 10450 4600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 10450 4600 50  0001 C CNN
	1    10450 4600
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5EDF29A7
P 10000 4600
AR Path="/5EC54617/5EDF29A7" Ref="#PWR?"  Part="1" 
AR Path="/5ED7BC4B/5EDF29A7" Ref="#PWR083"  Part="1" 
F 0 "#PWR083" H 10000 4450 50  0001 C CNN
F 1 "+5V" H 10015 4773 50  0000 C CNN
F 2 "" H 10000 4600 50  0001 C CNN
F 3 "" H 10000 4600 50  0001 C CNN
	1    10000 4600
	1    0    0    -1  
$EndComp
Wire Wire Line
	10000 4600 10150 4600
Wire Wire Line
	10150 5100 10150 4600
Connection ~ 10150 4600
Wire Wire Line
	9750 2600 10500 2600
Wire Wire Line
	10500 2600 10500 2550
$Comp
L 74xx:74LS04 IC8
U 5 1 5EE28E44
P 10450 5600
F 0 "IC8" H 10450 5917 50  0000 C CNN
F 1 "74LS04" H 10450 5826 50  0000 C CNN
F 2 "" H 10450 5600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 10450 5600 50  0001 C CNN
	5    10450 5600
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS04 IC8
U 6 1 5EE33BEC
P 10450 6100
F 0 "IC8" H 10450 6417 50  0000 C CNN
F 1 "74LS04" H 10450 6326 50  0000 C CNN
F 2 "" H 10450 6100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 10450 6100 50  0001 C CNN
	6    10450 6100
	1    0    0    -1  
$EndComp
Wire Wire Line
	10150 5100 10150 5600
Connection ~ 10150 5100
Connection ~ 10150 5600
Wire Wire Line
	10150 5600 10150 6100
Wire Wire Line
	10550 1800 9050 1800
Wire Wire Line
	9050 1800 9050 2600
Wire Wire Line
	9050 2600 9150 2600
Connection ~ 10550 1800
NoConn ~ 10750 4600
NoConn ~ 10750 5100
NoConn ~ 10750 5600
NoConn ~ 10750 6100
Text GLabel 2450 5600 0    50   Input ~ 0
~XMEMR~
Text GLabel 2800 5700 0    50   Input ~ 0
~XMEMW~
Text GLabel 2500 5000 0    50   Input ~ 0
~DACK0BRD~
Text GLabel 1100 4350 0    50   Input ~ 0
~BUF_RESET~
Text GLabel 1100 4050 0    50   Input ~ 0
~MEM_BANK_CS~
Text GLabel 5600 850  2    50   Input ~ 0
~RAM_ADDR_CS~
$Comp
L power:+5V #PWR0134
U 1 1 612EC4C5
P 6400 900
F 0 "#PWR0134" H 6400 750 50  0001 C CNN
F 1 "+5V" H 6415 1073 50  0000 C CNN
F 2 "" H 6400 900 50  0001 C CNN
F 3 "" H 6400 900 50  0001 C CNN
	1    6400 900 
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 950  6400 900 
$Comp
L power:+5V #PWR0133
U 1 1 61302E79
P 4450 2150
F 0 "#PWR0133" H 4450 2000 50  0001 C CNN
F 1 "+5V" H 4465 2323 50  0000 C CNN
F 2 "" H 4450 2150 50  0001 C CNN
F 3 "" H 4450 2150 50  0001 C CNN
	1    4450 2150
	1    0    0    -1  
$EndComp
Wire Wire Line
	4450 2200 4450 2150
$Comp
L power:+5V #PWR0135
U 1 1 6130A42D
P 6400 5100
F 0 "#PWR0135" H 6400 4950 50  0001 C CNN
F 1 "+5V" H 6415 5273 50  0000 C CNN
F 2 "" H 6400 5100 50  0001 C CNN
F 3 "" H 6400 5100 50  0001 C CNN
	1    6400 5100
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 5150 6400 5100
$Comp
L power:GND #PWR0136
U 1 1 6131069D
P 6400 6400
F 0 "#PWR0136" H 6400 6150 50  0001 C CNN
F 1 "GND" H 6405 6227 50  0000 C CNN
F 2 "" H 6400 6400 50  0001 C CNN
F 3 "" H 6400 6400 50  0001 C CNN
	1    6400 6400
	1    0    0    -1  
$EndComp
Wire Wire Line
	6400 6350 6400 6400
NoConn ~ 3400 3000
NoConn ~ 3400 4150
Text GLabel 8450 2050 2    50   Output ~ 0
~RAS0~
Text GLabel 8450 2650 2    50   Output ~ 0
~RAS1~
Text GLabel 8450 3250 2    50   Output ~ 0
~RAS2~
Text GLabel 8450 3800 2    50   Output ~ 0
~RAS3~
Text GLabel 7100 5550 2    50   Output ~ 0
ADDRSEL
Text GLabel 1350 1700 0    50   3State ~ 0
XD[0..1]
Wire Bus Line
	1350 1700 1500 1700
Text GLabel 1350 1450 0    50   Input ~ 0
BA[0..19]
Wire Bus Line
	1350 1450 1500 1450
Text GLabel 7550 1250 2    50   Output ~ 0
~CAS0~
Text GLabel 7200 1350 2    50   Output ~ 0
~CAS1~
Text GLabel 7550 1450 2    50   Output ~ 0
~CAS2~
Text GLabel 7200 1550 2    50   Output ~ 0
~CAS3~
NoConn ~ 10750 2950
NoConn ~ 10450 3200
NoConn ~ 10150 2950
NoConn ~ 10800 3650
NoConn ~ 10200 3650
NoConn ~ 10500 3900
NoConn ~ 10800 2300
NoConn ~ 10850 1550
NoConn ~ 3400 3950
Text Notes 3450 4100 0    50   ~ 0
There appear to be no uses of this latch output.\nNo software sets this bit.
Text Notes 650  2400 0    50   ~ 0
PCII RAM Paging\nWith D0 = 0\n0x00000 - 0x9FFFF RAM Bank 0, 1 and bottom half of 2\nWith D0 = 1\n0x00000 - 0x1FFFF RAM Bank 0 (unchanged)\n0x20000 - 0x7FFFF RAM Bank 2 (top half) and Bank 3\n0x80000 - 0x9FFFF RAM Bank2 (bottom half) (unchanged)
Text Notes 10050 1100 0    50   ~ 0
PROM_Q3 is always 1\nOutputs have no traces
Text GLabel 9750 1300 0    50   Input ~ 0
XA[0..19]
Entry Wire Line
	9950 1450 10050 1550
Entry Wire Line
	9950 2200 10050 2300
Wire Bus Line
	9750 1300 9950 1300
Wire Bus Line
	9950 1300 9950 2200
$EndSCHEMATC