pla.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 10 11
Title "LittleSixteen"
Date "2021-07-20"
Rev "2git"
Comp "SukkoPera"
Comment1 "Licensed under CC BY-NC-SA 4.0"
Comment2 "WARNING: These schematics might contain errors!"
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 74xx:74LS175 U15
U 1 1 5EE7EA9B
P 5945 2515
F 0 "U15" H 6160 3065 50  0000 C CNN
F 1 "74LS175" H 6215 1860 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 5945 2515 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS175" H 5945 2515 50  0001 C CNN
	1    5945 2515
	1    0    0    -1  
$EndComp
Wire Wire Line
	5445 2115 5125 2115
Wire Wire Line
	5445 2315 5125 2315
Wire Wire Line
	5445 2515 5125 2515
Wire Wire Line
	5445 2715 5125 2715
Wire Wire Line
	5445 3015 5125 3015
Entry Wire Line
	5025 2015 5125 2115
Entry Wire Line
	5025 2215 5125 2315
Entry Wire Line
	5025 2415 5125 2515
Entry Wire Line
	5025 2615 5125 2715
Wire Bus Line
	5025 2015 4770 2015
Text GLabel 4770 2015 0    50   Input ~ 0
a[0..15]
Text Label 5180 2115 0    50   ~ 0
a0
Text Label 5180 2315 0    50   ~ 0
a2
Text Label 5180 2515 0    50   ~ 0
a3
Text Label 5180 2715 0    50   ~ 0
a1
Wire Wire Line
	4740 2915 5445 2915
$Comp
L 74xx:74LS02 U12
U 1 1 5EE7B8FB
P 4440 2915
F 0 "U12" H 4440 2598 50  0000 C CNN
F 1 "74LS02" H 4440 2689 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 4440 2915 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 4440 2915 50  0001 C CNN
	1    4440 2915
	1    0    0    -1  
$EndComp
Wire Wire Line
	4140 3015 3885 3015
Text GLabel 3885 3015 0    50   Input ~ 0
R_~W
$Comp
L power:GND #PWR0168
U 1 1 5EE9C415
P 5945 3415
F 0 "#PWR0168" H 5945 3165 50  0001 C CNN
F 1 "GND" H 5950 3242 50  0000 C CNN
F 2 "" H 5945 3415 50  0001 C CNN
F 3 "" H 5945 3415 50  0001 C CNN
	1    5945 3415
	1    0    0    -1  
$EndComp
Wire Wire Line
	5945 3415 5945 3315
$Comp
L power:VCC #PWR0169
U 1 1 5EE9D033
P 5945 1705
F 0 "#PWR0169" H 5945 1555 50  0001 C CNN
F 1 "VCC" H 5962 1878 50  0000 C CNN
F 2 "" H 5945 1705 50  0001 C CNN
F 3 "" H 5945 1705 50  0001 C CNN
	1    5945 1705
	1    0    0    -1  
$EndComp
Wire Wire Line
	5945 1705 5945 1815
Text GLabel 5125 3015 0    50   Input ~ 0
~RESET
$Comp
L 74xx:74LS139 U14
U 1 1 5EE9F177
P 7895 2215
F 0 "U14" H 7895 2582 50  0000 C CNN
F 1 "74LS139" H 7895 2491 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 7895 2215 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 7895 2215 50  0001 C CNN
	1    7895 2215
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS139 U14
U 2 1 5EEA00AA
P 9430 3080
F 0 "U14" H 9430 3447 50  0000 C CNN
F 1 "74LS139" H 9430 3356 50  0000 C CNN
F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 9430 3080 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 9430 3080 50  0001 C CNN
	2    9430 3080
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS139 U14
U 3 1 5EEA114E
P 5115 6720
F 0 "U14" H 5345 6766 50  0000 L CNN
F 1 "74LS139" H 5345 6675 50  0000 L CNN
F 2 "Package_DIP:DIP-16_W7.62mm_Socket_LongPads" H 5115 6720 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS139" H 5115 6720 50  0001 C CNN
	3    5115 6720
	1    0    0    -1  
$EndComp
Wire Wire Line
	6620 2115 6620 2215
Wire Wire Line
	6620 2215 7395 2215
Wire Wire Line
	6445 2115 6620 2115
Wire Wire Line
	6720 2715 6720 2115
Wire Wire Line
	6720 2115 7395 2115
Wire Wire Line
	6445 2715 6720 2715
$Comp
L Device:C C28
U 1 1 5EEA5EFC
P 5840 6715
F 0 "C28" H 5955 6761 50  0000 L CNN
F 1 "100n" H 5955 6670 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm" H 5878 6565 50  0001 C CNN
F 3 "~" H 5840 6715 50  0001 C CNN
	1    5840 6715
	1    0    0    -1  
$EndComp
Wire Wire Line
	5115 6220 5115 6105
Wire Wire Line
	5115 6105 5470 6105
Wire Wire Line
	5840 6105 5840 6565
Wire Wire Line
	5840 6865 5840 7365
Wire Wire Line
	5840 7365 5470 7365
Wire Wire Line
	5115 7365 5115 7220
$Comp
L power:GND #PWR0170
U 1 1 5EEA911C
P 5470 7465
F 0 "#PWR0170" H 5470 7215 50  0001 C CNN
F 1 "GND" H 5475 7292 50  0000 C CNN
F 2 "" H 5470 7465 50  0001 C CNN
F 3 "" H 5470 7465 50  0001 C CNN
	1    5470 7465
	1    0    0    -1  
$EndComp
Wire Wire Line
	5470 7465 5470 7365
Connection ~ 5470 7365
Wire Wire Line
	5470 7365 5115 7365
$Comp
L power:VCC #PWR0171
U 1 1 5EEAA156
P 5470 5995
F 0 "#PWR0171" H 5470 5845 50  0001 C CNN
F 1 "VCC" H 5487 6168 50  0000 C CNN
F 2 "" H 5470 5995 50  0001 C CNN
F 3 "" H 5470 5995 50  0001 C CNN
	1    5470 5995
	1    0    0    -1  
$EndComp
Wire Wire Line
	5470 5995 5470 6105
Connection ~ 5470 6105
Wire Wire Line
	5470 6105 5840 6105
NoConn ~ 8395 2215
Wire Wire Line
	8395 2115 8665 2115
Wire Wire Line
	8395 2315 8665 2315
Wire Wire Line
	8395 2415 8665 2415
Text GLabel 8665 2115 2    50   Output ~ 0
~BASIC_CS1
Text GLabel 8665 2315 2    50   Output ~ 0
C1_LOW
Text GLabel 8665 2415 2    50   Output ~ 0
C2_LOW
$Comp
L 74xx:74LS02 U12
U 2 1 5EEBA2EA
P 7885 2980
F 0 "U12" H 7885 3305 50  0000 C CNN
F 1 "74LS02" H 7885 3214 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7885 2980 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 7885 2980 50  0001 C CNN
	2    7885 2980
	1    0    0    -1  
$EndComp
Wire Wire Line
	7395 2415 7245 2415
Text GLabel 7245 2415 0    50   Input ~ 0
~CS0
Wire Wire Line
	6830 2415 6830 2880
Wire Wire Line
	6830 2880 7585 2880
Wire Wire Line
	6445 2415 6830 2415
$Comp
L 74xx:74LS02 U12
U 3 1 5EEC5F05
P 7885 3680
F 0 "U12" H 7885 4005 50  0000 C CNN
F 1 "74LS02" H 7885 3914 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 7885 3680 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 7885 3680 50  0001 C CNN
	3    7885 3680
	1    0    0    -1  
$EndComp
Wire Wire Line
	7585 3080 6830 3080
Wire Wire Line
	6830 3080 6830 3780
Wire Wire Line
	6830 3780 7585 3780
Wire Wire Line
	6620 2615 6620 3580
Wire Wire Line
	6620 3580 7585 3580
Wire Wire Line
	6445 2615 6620 2615
NoConn ~ 6445 2815
NoConn ~ 6445 2515
NoConn ~ 6445 2215
NoConn ~ 6445 2315
Wire Wire Line
	8185 2980 8270 2980
Wire Wire Line
	8270 2980 8270 3080
Wire Wire Line
	8270 3080 8930 3080
Wire Wire Line
	8930 2980 8375 2980
Wire Wire Line
	8375 2980 8375 3680
Wire Wire Line
	8375 3680 8185 3680
Wire Wire Line
	8930 3280 8780 3280
Text GLabel 8780 3280 0    50   Input ~ 0
~CS1
Wire Wire Line
	9930 2980 10200 2980
Wire Wire Line
	9930 3180 10200 3180
Wire Wire Line
	9930 3280 10200 3280
Text GLabel 10200 2980 2    50   Output ~ 0
~KERNAL_CS1
Text GLabel 10200 3180 2    50   Output ~ 0
C1_HIGH
Text GLabel 10200 3280 2    50   Output ~ 0
C2_HIGH
NoConn ~ 9930 3080
$Comp
L 74xx:74LS02 U12
U 5 1 5EEE272F
P 3330 6720
F 0 "U12" H 3560 6766 50  0000 L CNN
F 1 "74LS02" H 3560 6675 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm_Socket_LongPads" H 3330 6720 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74ls02" H 3330 6720 50  0001 C CNN
	5    3330 6720
	1    0    0    -1  
$EndComp
$Comp
L MOS_251641_PLA:MOS_251641_PLA U16
U 2 1 5DE9421D
P 1415 6720
F 0 "U16" H 1187 6766 50  0000 R CNN
F 1 "MOS_251641_PLA" H 1187 6675 50  0000 R CNN
F 2 "Package_DIP:DIP-28_W15.24mm_Socket_LongPads" H 1415 6720 50  0001 C CNN
F 3 "DOCUMENTATION" H 1415 6720 50  0001 C CNN
	2    1415 6720
	1    0    0    -1  
$EndComp
$Comp
L Device:C C30
U 1 1 5DEA08DA
P 2140 6715
F 0 "C30" H 2255 6761 50  0000 L CNN
F 1 "100n" H 2255 6670 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm" H 2178 6565 50  0001 C CNN
F 3 "~" H 2140 6715 50  0001 C CNN
	1    2140 6715
	1    0    0    -1  
$EndComp
Wire Wire Line
	1415 6220 1415 6105
Wire Wire Line
	1415 6105 1770 6105
Wire Wire Line
	2140 6105 2140 6565
Wire Wire Line
	2140 6865 2140 7365
Wire Wire Line
	2140 7365 1770 7365
Wire Wire Line
	1415 7365 1415 7220
$Comp
L power:GND #PWR0174
U 1 1 5DEA08EA
P 1770 7465
F 0 "#PWR0174" H 1770 7215 50  0001 C CNN
F 1 "GND" H 1775 7292 50  0000 C CNN
F 2 "" H 1770 7465 50  0001 C CNN
F 3 "" H 1770 7465 50  0001 C CNN
	1    1770 7465
	1    0    0    -1  
$EndComp
Wire Wire Line
	1770 7465 1770 7365
Connection ~ 1770 7365
Wire Wire Line
	1770 7365 1415 7365
$Comp
L power:VCC #PWR0175
U 1 1 5DEA08F7
P 1770 5995
F 0 "#PWR0175" H 1770 5845 50  0001 C CNN
F 1 "VCC" H 1787 6168 50  0000 C CNN
F 2 "" H 1770 5995 50  0001 C CNN
F 3 "" H 1770 5995 50  0001 C CNN
	1    1770 5995
	1    0    0    -1  
$EndComp
Wire Wire Line
	1770 5995 1770 6105
Connection ~ 1770 6105
Wire Wire Line
	1770 6105 2140 6105
Text GLabel 1465 3665 0    50   Input ~ 0
MUX
Text GLabel 1240 3565 0    50   Input ~ 0
~RAS
Wire Wire Line
	1925 3565 1240 3565
Wire Wire Line
	1925 3665 1465 3665
$Comp
L power:GND #PWR0176
U 1 1 5DF08B63
P 1815 3985
F 0 "#PWR0176" H 1815 3735 50  0001 C CNN
F 1 "GND" H 1820 3812 50  0000 C CNN
F 2 "" H 1815 3985 50  0001 C CNN
F 3 "" H 1815 3985 50  0001 C CNN
	1    1815 3985
	1    0    0    -1  
$EndComp
Wire Wire Line
	1815 3865 1815 3985
Wire Wire Line
	1925 3865 1815 3865
Text GLabel 1240 1955 0    50   Input ~ 0
PHI0
Wire Wire Line
	1700 2065 1925 2065
Wire Wire Line
	1700 1955 1240 1955
Wire Wire Line
	1700 2065 1700 1955
Wire Wire Line
	1925 1965 1810 1965
Text Label 1695 3315 0    50   ~ 0
a8
Text Label 1695 3215 0    50   ~ 0
a9
Text Label 1695 3115 0    50   ~ 0
a15
Text Label 1695 3015 0    50   ~ 0
a4
Text Label 1695 2915 0    50   ~ 0
a5
Text Label 1695 2815 0    50   ~ 0
a6
Text Label 1695 2715 0    50   ~ 0
a7
Text Label 1695 2615 0    50   ~ 0
a12
Text Label 1695 2515 0    50   ~ 0
a14
Text Label 1695 2415 0    50   ~ 0
a13
Text Label 1695 2315 0    50   ~ 0
a11
Text Label 1695 2215 0    50   ~ 0
a10
Text GLabel 1240 2115 0    50   Input ~ 0
a[0..15]
Wire Bus Line
	1560 2115 1240 2115
Entry Wire Line
	1560 3215 1660 3315
Entry Wire Line
	1560 3115 1660 3215
Entry Wire Line
	1560 3015 1660 3115
Entry Wire Line
	1560 2915 1660 3015
Entry Wire Line
	1560 2815 1660 2915
Entry Wire Line
	1560 2715 1660 2815
Entry Wire Line
	1560 2615 1660 2715
Entry Wire Line
	1560 2515 1660 2615
Entry Wire Line
	1560 2415 1660 2515
Entry Wire Line
	1560 2315 1660 2415
Entry Wire Line
	1560 2215 1660 2315
Entry Wire Line
	1560 2115 1660 2215
Wire Wire Line
	1925 3315 1660 3315
Wire Wire Line
	1925 3215 1660 3215
Wire Wire Line
	1925 3115 1660 3115
Wire Wire Line
	1925 3015 1660 3015
Wire Wire Line
	1925 2915 1660 2915
Wire Wire Line
	1925 2815 1660 2815
Wire Wire Line
	1925 2715 1660 2715
Wire Wire Line
	1925 2615 1660 2615
Wire Wire Line
	1925 2515 1660 2515
Wire Wire Line
	1925 2415 1660 2415
Wire Wire Line
	1925 2315 1660 2315
Wire Wire Line
	1925 2215 1660 2215
Wire Wire Line
	1810 1530 1810 1965
Wire Wire Line
	3500 1530 1810 1530
Wire Wire Line
	3500 2915 3500 1530
Wire Wire Line
	3425 2915 3500 2915
$Comp
L MOS_251641_PLA:MOS_251641_PLA U16
U 1 1 5DE932D8
P 2675 2915
F 0 "U16" H 2675 4130 50  0000 C CNN
F 1 "MOS_251641_PLA" H 2675 4039 50  0000 C CNN
F 2 "Package_DIP:DIP-28_W15.24mm_Socket_LongPads" H 2675 2915 50  0001 C CNN
F 3 "DOCUMENTATION" H 2675 2915 50  0001 C CNN
	1    2675 2915
	1    0    0    -1  
$EndComp
Connection ~ 6830 3780
Text Notes 4140 2890 2    50   ~ 0
ADDR CLK\n$FDD0-$FDDF
NoConn ~ 3425 2215
NoConn ~ 3425 2515
Text Notes 3525 2250 0    50   ~ 0
SCS (?)
Text Notes 3525 2550 0    50   ~ 0
$FD00-$FD0F (ACIA CS on +4)
Wire Wire Line
	3425 2315 3630 2315
Text GLabel 3630 2315 2    50   Output ~ 0
PHI2
Wire Wire Line
	3425 2415 3855 2415
Text GLabel 3855 2415 2    50   Output ~ 0
CASSETTE
Wire Wire Line
	3665 2615 3665 2815
Wire Wire Line
	3665 2615 3425 2615
Wire Wire Line
	3580 3780 6830 3780
Wire Wire Line
	3425 2715 3750 2715
Text GLabel 3855 2615 2    50   Output ~ 0
KEYPORT_CS
Wire Wire Line
	3750 2715 3750 2615
Wire Wire Line
	3750 2615 3855 2615
Text Notes 9705 2735 0    50   ~ 0
This enables function\nROM HIGH on the +4
Wire Notes Line
	9930 2755 9930 3045
Text Notes 8170 1870 0    50   ~ 0
This enables function\nROM LOW on the +4
Wire Notes Line
	8395 1890 8395 2180
Text Notes 3640 3780 0    50   ~ 0
KERN $FC00-$FCFF
Wire Wire Line
	3665 2815 4140 2815
Wire Wire Line
	3425 2815 3580 2815
Wire Wire Line
	3580 2815 3580 3780
$Comp
L Device:C C9
U 1 1 6116CC87
P 4055 6715
F 0 "C9" H 4170 6761 50  0000 L CNN
F 1 "100n" H 4170 6670 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm" H 4093 6565 50  0001 C CNN
F 3 "~" H 4055 6715 50  0001 C CNN
	1    4055 6715
	1    0    0    -1  
$EndComp
Wire Wire Line
	3330 6220 3330 6105
Wire Wire Line
	3330 6105 3685 6105
Wire Wire Line
	4055 6105 4055 6565
Wire Wire Line
	4055 6865 4055 7365
Wire Wire Line
	4055 7365 3685 7365
Wire Wire Line
	3330 7365 3330 7220
$Comp
L power:GND #PWR0172
U 1 1 6116CC97
P 3685 7465
F 0 "#PWR0172" H 3685 7215 50  0001 C CNN
F 1 "GND" H 3690 7292 50  0000 C CNN
F 2 "" H 3685 7465 50  0001 C CNN
F 3 "" H 3685 7465 50  0001 C CNN
	1    3685 7465
	1    0    0    -1  
$EndComp
Wire Wire Line
	3685 7465 3685 7365
Connection ~ 3685 7365
Wire Wire Line
	3685 7365 3330 7365
$Comp
L power:VCC #PWR0173
U 1 1 6116CCA4
P 3685 5995
F 0 "#PWR0173" H 3685 5845 50  0001 C CNN
F 1 "VCC" H 3702 6168 50  0000 C CNN
F 2 "" H 3685 5995 50  0001 C CNN
F 3 "" H 3685 5995 50  0001 C CNN
	1    3685 5995
	1    0    0    -1  
$EndComp
Wire Wire Line
	3685 5995 3685 6105
Connection ~ 3685 6105
Wire Wire Line
	3685 6105 4055 6105
Text Notes 3840 7560 0    50   ~ 0
Additional\ndecoupling cap
Wire Wire Line
	6485 6865 6485 6940
Wire Wire Line
	6485 6490 6485 6565
$Comp
L power:GND #PWR?
U 1 1 6117E5B7
P 6485 6940
AR Path="/5E4A465A/6117E5B7" Ref="#PWR?"  Part="1" 
AR Path="/5EE7AAEB/6117E5B7" Ref="#PWR0187"  Part="1" 
F 0 "#PWR0187" H 6485 6690 50  0001 C CNN
F 1 "GND" H 6490 6767 50  0000 C CNN
F 2 "" H 6485 6940 50  0001 C CNN
F 3 "" H 6485 6940 50  0001 C CNN
	1    6485 6940
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR?
U 1 1 6117E5BD
P 6485 6490
AR Path="/5E4A465A/6117E5BD" Ref="#PWR?"  Part="1" 
AR Path="/5EE7AAEB/6117E5BD" Ref="#PWR0188"  Part="1" 
F 0 "#PWR0188" H 6485 6340 50  0001 C CNN
F 1 "VCC" H 6502 6663 50  0000 C CNN
F 2 "" H 6485 6490 50  0001 C CNN
F 3 "" H 6485 6490 50  0001 C CNN
	1    6485 6490
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 6117E5C3
P 6485 6715
AR Path="/5E4A465A/6117E5C3" Ref="C?"  Part="1" 
AR Path="/5EE7AAEB/6117E5C3" Ref="C27"  Part="1" 
F 0 "C27" H 6600 6761 50  0000 L CNN
F 1 "100n" H 6600 6670 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm" H 6523 6565 50  0001 C CNN
F 3 "~" H 6485 6715 50  0001 C CNN
	1    6485 6715
	1    0    0    -1  
$EndComp
Text Notes 6255 7460 0    50   ~ 0
Additional\ndecoupling cap\nfor U15
Wire Bus Line
	5025 2015 5025 2615
Wire Bus Line
	1560 2115 1560 3215
$EndSCHEMATC