xbus-buffer.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 9 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:74LS245 IC?
U 1 1 5F0524A2
P 3550 2200
AR Path="/5EC569ED/5F0524A2" Ref="IC?"  Part="1" 
AR Path="/5F04B123/5F0524A2" Ref="IC12"  Part="1" 
F 0 "IC12" H 3350 2950 50  0000 C CNN
F 1 "74LS245" H 3800 2950 50  0000 C CNN
F 2 "" H 3550 2200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS245" H 3550 2200 50  0001 C CNN
	1    3550 2200
	1    0    0    -1  
$EndComp
Text Label 2500 2400 0    50   ~ 0
BD0
Text Label 2500 2300 0    50   ~ 0
BD1
Text Label 2500 2200 0    50   ~ 0
BD2
Text Label 2500 2100 0    50   ~ 0
BD3
Text Label 2500 2000 0    50   ~ 0
BD4
Text Label 2500 1900 0    50   ~ 0
BD5
Text Label 2500 1800 0    50   ~ 0
BD6
Text Label 2500 1700 0    50   ~ 0
BD7
Text Label 4250 2400 2    50   ~ 0
XD0
Text Label 4250 2300 2    50   ~ 0
XD1
Text Label 4250 2200 2    50   ~ 0
XD2
Text Label 4250 2100 2    50   ~ 0
XD3
Text Label 4250 2000 2    50   ~ 0
XD4
Text Label 4250 1900 2    50   ~ 0
XD5
Text Label 4250 1800 2    50   ~ 0
XD6
Text Label 4250 1700 2    50   ~ 0
XD7
Wire Wire Line
	4050 1700 4250 1700
Wire Wire Line
	4050 1800 4250 1800
Wire Wire Line
	4050 1900 4250 1900
Wire Wire Line
	4050 2000 4250 2000
Wire Wire Line
	4050 2100 4250 2100
Wire Wire Line
	4050 2200 4250 2200
Wire Wire Line
	4050 2300 4250 2300
Wire Wire Line
	4050 2400 4250 2400
Entry Wire Line
	2500 1700 2400 1800
Entry Wire Line
	2500 1800 2400 1900
Entry Wire Line
	2500 1900 2400 2000
Entry Wire Line
	2500 2000 2400 2100
Entry Wire Line
	2500 2100 2400 2200
Entry Wire Line
	2500 2200 2400 2300
Entry Wire Line
	2500 2300 2400 2400
Entry Wire Line
	2500 2400 2400 2500
Wire Bus Line
	2400 2600 1950 2600
Text GLabel 1950 2600 0    50   3State ~ 0
BD[0..7]
$Comp
L 74xx:74LS244 IC?
U 1 1 5F0524D2
P 6750 2200
AR Path="/5EC569ED/5F0524D2" Ref="IC?"  Part="1" 
AR Path="/5F04B123/5F0524D2" Ref="IC16"  Part="1" 
F 0 "IC16" H 6500 2950 50  0000 C CNN
F 1 "74LS244" H 7000 2950 50  0000 C CNN
F 2 "" H 6750 2200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS244" H 6750 2200 50  0001 C CNN
	1    6750 2200
	1    0    0    -1  
$EndComp
Text Label 7500 2400 2    50   ~ 0
BA7
Text Label 7500 2100 2    50   ~ 0
BA4
Text Label 7500 2000 2    50   ~ 0
BA3
Text Label 7500 1700 2    50   ~ 0
BA0
Text Label 7500 1800 2    50   ~ 0
BA1
Text Label 7500 1900 2    50   ~ 0
BA2
Text Label 7500 2200 2    50   ~ 0
BA5
Text Label 7500 2300 2    50   ~ 0
BA6
Text Label 6000 1700 0    50   ~ 0
XA0
Text Label 6000 1800 0    50   ~ 0
XA1
Text Label 6000 1900 0    50   ~ 0
XA2
Text Label 6000 2000 0    50   ~ 0
XA3
Text Label 6000 2100 0    50   ~ 0
XA4
Text Label 6000 2200 0    50   ~ 0
XA5
Text Label 6000 2300 0    50   ~ 0
XA6
Text Label 6000 2400 0    50   ~ 0
XA7
Wire Wire Line
	6000 1700 6250 1700
Wire Wire Line
	6000 1800 6250 1800
Wire Wire Line
	6000 1900 6250 1900
Wire Wire Line
	6000 2000 6250 2000
Wire Wire Line
	6000 2100 6250 2100
Wire Wire Line
	6000 2200 6250 2200
Wire Wire Line
	6000 2300 6250 2300
Wire Wire Line
	6000 2400 6250 2400
Wire Wire Line
	6250 2600 6250 2700
Wire Wire Line
	6250 2700 5750 2700
Connection ~ 6250 2700
Text GLabel 5750 2700 0    50   Input ~ 0
~DMAAEN~
$Comp
L 74xx:74LS244 IC?
U 1 1 5F053B01
P 6750 4800
AR Path="/5EC569ED/5F053B01" Ref="IC?"  Part="1" 
AR Path="/5F04B123/5F053B01" Ref="IC15"  Part="1" 
F 0 "IC15" H 6950 5500 50  0000 C CNN
F 1 "74LS244" H 6500 5500 50  0000 C CNN
F 2 "" H 6750 4800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS244" H 6750 4800 50  0001 C CNN
	1    6750 4800
	-1   0    0    -1  
$EndComp
Text Label 7500 4400 2    50   ~ 0
BA15
Text Label 7500 4300 2    50   ~ 0
BA14
$Comp
L 74xx:74LS244 IC?
U 1 1 5F05B9D2
P 3550 4650
AR Path="/5EC569ED/5F05B9D2" Ref="IC?"  Part="1" 
AR Path="/5F04B123/5F05B9D2" Ref="IC18"  Part="1" 
F 0 "IC18" H 3300 5400 50  0000 C CNN
F 1 "74LS244" H 3800 5400 50  0000 C CNN
F 2 "" H 3550 4650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS244" H 3550 4650 50  0001 C CNN
	1    3550 4650
	1    0    0    -1  
$EndComp
Wire Wire Line
	2050 4750 3050 4750
Text Label 2700 4450 0    50   ~ 0
BA19
Text Label 2700 4250 0    50   ~ 0
BA17
Text Label 2700 4350 0    50   ~ 0
BA18
Text Label 2700 4150 0    50   ~ 0
BA16
Text Label 7500 4900 2    50   ~ 0
BA13
Text Label 7500 5000 2    50   ~ 0
BA12
Text Label 7500 4700 2    50   ~ 0
BA8
Text Label 7500 4600 2    50   ~ 0
BA9
Text Label 7500 4800 2    50   ~ 0
BA11
Text Label 7500 4500 2    50   ~ 0
BA10
Text Label 6000 4400 0    50   ~ 0
XA15
Text Label 6000 4300 0    50   ~ 0
XA14
Text Label 6000 4900 0    50   ~ 0
XA13
Text Label 6000 5000 0    50   ~ 0
XA12
Text Label 6000 4700 0    50   ~ 0
XA8
Text Label 6000 4600 0    50   ~ 0
XA9
Text Label 6000 4800 0    50   ~ 0
XA11
Text Label 6000 4500 0    50   ~ 0
XA10
Wire Wire Line
	6250 4300 6000 4300
Wire Wire Line
	6250 4400 6000 4400
Wire Wire Line
	6250 4500 6000 4500
Wire Wire Line
	6250 4600 6000 4600
Wire Wire Line
	6250 4700 6000 4700
Wire Wire Line
	6250 4800 6000 4800
Wire Wire Line
	6250 4900 6000 4900
Wire Wire Line
	6250 5000 6000 5000
Wire Wire Line
	7500 4300 7250 4300
Wire Wire Line
	7500 4400 7250 4400
Wire Wire Line
	7500 4500 7250 4500
Wire Wire Line
	7500 4600 7250 4600
Wire Wire Line
	7500 4700 7250 4700
Wire Wire Line
	7500 4800 7250 4800
Wire Wire Line
	7500 4900 7250 4900
Wire Wire Line
	7500 5000 7250 5000
Wire Wire Line
	2700 4150 3050 4150
Wire Wire Line
	2700 4250 3050 4250
Wire Wire Line
	2700 4350 3050 4350
Wire Wire Line
	2700 4450 3050 4450
Text Label 4400 4450 2    50   ~ 0
XA19
Text Label 4400 4250 2    50   ~ 0
XA17
Text Label 4400 4350 2    50   ~ 0
XA18
Text Label 4400 4150 2    50   ~ 0
XA16
Wire Wire Line
	4400 4150 4050 4150
Wire Wire Line
	4400 4250 4050 4250
Wire Wire Line
	4400 4350 4050 4350
Wire Wire Line
	4400 4450 4050 4450
$Comp
L power:GND #PWR066
U 1 1 5F0807E6
P 6750 5650
F 0 "#PWR066" H 6750 5400 50  0001 C CNN
F 1 "GND" H 6755 5477 50  0000 C CNN
F 2 "" H 6750 5650 50  0001 C CNN
F 3 "" H 6750 5650 50  0001 C CNN
	1    6750 5650
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR064
U 1 1 5F081864
P 3550 5500
F 0 "#PWR064" H 3550 5250 50  0001 C CNN
F 1 "GND" H 3555 5327 50  0000 C CNN
F 2 "" H 3550 5500 50  0001 C CNN
F 3 "" H 3550 5500 50  0001 C CNN
	1    3550 5500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR065
U 1 1 5F082419
P 6750 3050
F 0 "#PWR065" H 6750 2800 50  0001 C CNN
F 1 "GND" H 6755 2877 50  0000 C CNN
F 2 "" H 6750 3050 50  0001 C CNN
F 3 "" H 6750 3050 50  0001 C CNN
	1    6750 3050
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR063
U 1 1 5F0825C0
P 3550 3050
F 0 "#PWR063" H 3550 2800 50  0001 C CNN
F 1 "GND" H 3555 2877 50  0000 C CNN
F 2 "" H 3550 3050 50  0001 C CNN
F 3 "" H 3550 3050 50  0001 C CNN
	1    3550 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 5600 6750 5650
Wire Wire Line
	6750 5600 7250 5600
Wire Wire Line
	7250 5200 7250 5300
Connection ~ 6750 5600
Connection ~ 7250 5300
Wire Wire Line
	7250 5300 7250 5600
Wire Wire Line
	3050 5450 3550 5450
Wire Wire Line
	3050 5050 3050 5150
Connection ~ 3050 5150
Wire Wire Line
	3050 5150 3050 5450
Wire Wire Line
	3550 5450 3550 5500
Connection ~ 3550 5450
Wire Wire Line
	3550 3000 3550 3050
Wire Wire Line
	6750 3000 6750 3050
Wire Wire Line
	4050 4650 4400 4650
Wire Wire Line
	1550 4650 3050 4650
Wire Wire Line
	4700 4750 4050 4750
Wire Wire Line
	1550 4850 3050 4850
Wire Wire Line
	4050 4850 4400 4850
Wire Wire Line
	2600 2700 3050 2700
Wire Wire Line
	2500 1700 3050 1700
Wire Wire Line
	2500 1800 3050 1800
Wire Wire Line
	2500 1900 3050 1900
Wire Wire Line
	2500 2000 3050 2000
Wire Wire Line
	2500 2100 3050 2100
Wire Wire Line
	2500 2200 3050 2200
Wire Wire Line
	2500 2300 3050 2300
Wire Wire Line
	2500 2400 3050 2400
Wire Wire Line
	2900 2600 3050 2600
Wire Wire Line
	4700 4550 4050 4550
Entry Wire Line
	4250 1700 4350 1800
Entry Wire Line
	4250 1800 4350 1900
Entry Wire Line
	4250 1900 4350 2000
Entry Wire Line
	4250 2000 4350 2100
Entry Wire Line
	4250 2100 4350 2200
Entry Wire Line
	4250 2200 4350 2300
Entry Wire Line
	4250 2300 4350 2400
Entry Wire Line
	4250 2400 4350 2500
Wire Bus Line
	4350 2600 4450 2600
Text GLabel 4450 2600 2    50   3State ~ 0
XD[0..7]
$Comp
L power:+5V #PWR0127
U 1 1 60F9A76C
P 6750 1350
F 0 "#PWR0127" H 6750 1200 50  0001 C CNN
F 1 "+5V" H 6765 1523 50  0000 C CNN
F 2 "" H 6750 1350 50  0001 C CNN
F 3 "" H 6750 1350 50  0001 C CNN
	1    6750 1350
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0125
U 1 1 60F9EE7B
P 3550 1350
F 0 "#PWR0125" H 3550 1200 50  0001 C CNN
F 1 "+5V" H 3565 1523 50  0000 C CNN
F 2 "" H 3550 1350 50  0001 C CNN
F 3 "" H 3550 1350 50  0001 C CNN
	1    3550 1350
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0128
U 1 1 60FA2048
P 6750 3950
F 0 "#PWR0128" H 6750 3800 50  0001 C CNN
F 1 "+5V" H 6765 4123 50  0000 C CNN
F 2 "" H 6750 3950 50  0001 C CNN
F 3 "" H 6750 3950 50  0001 C CNN
	1    6750 3950
	1    0    0    -1  
$EndComp
Entry Wire Line
	5900 1600 6000 1700
Entry Wire Line
	5900 1700 6000 1800
Entry Wire Line
	5900 1800 6000 1900
Entry Wire Line
	5900 1900 6000 2000
Entry Wire Line
	5900 2000 6000 2100
Entry Wire Line
	5900 2100 6000 2200
Entry Wire Line
	5900 2200 6000 2300
Entry Wire Line
	5900 2300 6000 2400
Entry Wire Line
	5900 4200 6000 4300
Entry Wire Line
	5900 4300 6000 4400
Entry Wire Line
	5900 4400 6000 4500
Entry Wire Line
	5900 4500 6000 4600
Entry Wire Line
	5900 4600 6000 4700
Entry Wire Line
	5900 4700 6000 4800
Entry Wire Line
	5900 4800 6000 4900
Entry Wire Line
	5900 4900 6000 5000
Wire Bus Line
	5900 1250 5650 1250
Text GLabel 5650 1250 0    50   BiDi ~ 0
XA[0..19]
Entry Wire Line
	4400 4450 4500 4350
Entry Wire Line
	4400 4350 4500 4250
Entry Wire Line
	4400 4250 4500 4150
Entry Wire Line
	4400 4150 4500 4050
Wire Bus Line
	4500 3450 5900 3450
Connection ~ 5900 3450
Entry Wire Line
	7500 4300 7600 4400
Entry Wire Line
	7500 4400 7600 4500
Entry Wire Line
	7500 4500 7600 4600
Entry Wire Line
	7500 4600 7600 4700
Entry Wire Line
	7500 4700 7600 4800
Entry Wire Line
	7500 4800 7600 4900
Entry Wire Line
	7500 4900 7600 5000
Entry Wire Line
	7500 5000 7600 5100
Entry Wire Line
	7500 1700 7600 1800
Entry Wire Line
	7500 1800 7600 1900
Entry Wire Line
	7500 1900 7600 2000
Entry Wire Line
	7500 2000 7600 2100
Entry Wire Line
	7500 2100 7600 2200
Entry Wire Line
	7500 2200 7600 2300
Entry Wire Line
	7500 2300 7600 2400
Entry Wire Line
	7500 2400 7600 2500
Wire Wire Line
	7250 1700 7500 1700
Wire Wire Line
	7250 1800 7500 1800
Wire Wire Line
	7250 1900 7500 1900
Wire Wire Line
	7250 2000 7500 2000
Wire Wire Line
	7250 2100 7500 2100
Wire Wire Line
	7250 2200 7500 2200
Wire Wire Line
	7250 2300 7500 2300
Wire Wire Line
	7250 2400 7500 2400
Wire Bus Line
	7600 6250 2600 6250
Text GLabel 2050 4550 0    50   Input ~ 0
~BUF_RESET~
Text GLabel 1550 4650 0    50   Input ~ 0
CPU_CLOCK
Text GLabel 2050 4750 0    50   Input ~ 0
~DACK0BRD~
Text GLabel 1550 4850 0    50   Input ~ 0
AENBRD
Wire Wire Line
	2050 4550 3050 4550
Entry Wire Line
	2600 4350 2700 4450
Entry Wire Line
	2600 4250 2700 4350
Entry Wire Line
	2600 4150 2700 4250
Entry Wire Line
	2600 4050 2700 4150
Wire Bus Line
	2600 3850 1950 3850
Text GLabel 1950 3850 0    50   BiDi ~ 0
BA[0..19]
$Comp
L power:+5V #PWR0126
U 1 1 6105570F
P 3550 3800
F 0 "#PWR0126" H 3550 3650 50  0001 C CNN
F 1 "+5V" H 3565 3973 50  0000 C CNN
F 2 "" H 3550 3800 50  0001 C CNN
F 3 "" H 3550 3800 50  0001 C CNN
	1    3550 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	6750 3950 6750 4000
Wire Wire Line
	3550 3800 3550 3850
Wire Wire Line
	6750 1350 6750 1400
Wire Wire Line
	3550 1350 3550 1400
Text GLabel 2900 2600 0    50   Input ~ 0
XBUS_IN
Text GLabel 2600 2700 0    50   Input ~ 0
AENBRD
Text GLabel 4700 4550 2    50   Input ~ 0
~KEYBOARD_RESET~
Text GLabel 4400 4650 2    50   Input ~ 0
CLK
Text GLabel 4700 4750 2    50   Input ~ 0
~DACK0~
Text GLabel 4400 4850 2    50   Input ~ 0
AEN
Wire Bus Line
	4500 3450 4500 4350
Wire Bus Line
	2600 3850 2600 6250
Wire Bus Line
	5900 3450 5900 4900
Wire Bus Line
	5900 1250 5900 3450
Wire Bus Line
	4350 1800 4350 2600
Wire Bus Line
	2400 1800 2400 2600
Wire Bus Line
	7600 1800 7600 6250
$EndSCHEMATC