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pda6502v2.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A3 16535 11693
encoding utf-8
Sheet 1 1
Title "pda6502v2"
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Label 1200 1150 2 50 ~ 0
~RESET
NoConn ~ 1300 1550
NoConn ~ 1300 1650
Text Label 1200 1450 2 50 ~ 0
CLOCK
Text Label 2500 1150 0 50 ~ 0
A0
Text Label 2500 2650 0 50 ~ 0
A15
Text Label 2500 2550 0 50 ~ 0
A14
Text Label 2500 2450 0 50 ~ 0
A13
Text Label 2500 2350 0 50 ~ 0
A12
Text Label 2500 2250 0 50 ~ 0
A11
Text Label 2500 2150 0 50 ~ 0
A10
Text Label 2500 2050 0 50 ~ 0
A9
Text Label 2500 1950 0 50 ~ 0
A8
Text Label 2500 1850 0 50 ~ 0
A7
Text Label 2500 1750 0 50 ~ 0
A6
Text Label 2500 1650 0 50 ~ 0
A5
Text Label 2500 1550 0 50 ~ 0
A4
Text Label 2500 1450 0 50 ~ 0
A3
Text Label 2500 1350 0 50 ~ 0
A2
Text Label 2500 1250 0 50 ~ 0
A1
$Comp
L 65xx:W65C02SxP U1
U 1 1 60719FB3
P 1900 2350
F 0 "U1" H 1900 4081 50 0000 C CNN
F 1 "W65C02SxP" H 1900 3990 50 0000 C CIB
F 2 "Package_DIP:DIP-40_W15.24mm" H 1900 4350 50 0001 C CNN
F 3 "http://www.westerndesigncenter.com/wdc/documentation/w65c02s.pdf" H 1900 4250 50 0001 C CNN
1 1900 2350
1 0 0 -1
$EndComp
Wire Wire Line
2500 1150 2650 1150
Wire Wire Line
2500 1250 2650 1250
Wire Wire Line
2500 1350 2650 1350
Wire Wire Line
2500 1450 2650 1450
Wire Wire Line
2500 1550 2650 1550
Wire Wire Line
2500 1650 2650 1650
Wire Wire Line
2500 1750 2650 1750
Wire Wire Line
2500 1850 2650 1850
Wire Wire Line
2500 1950 2650 1950
Wire Wire Line
2500 2050 2650 2050
Wire Wire Line
2500 2150 2650 2150
Wire Wire Line
2500 2250 2650 2250
Wire Wire Line
2500 2350 2650 2350
Wire Wire Line
2500 2450 2650 2450
Wire Wire Line
2500 2550 2650 2550
Wire Wire Line
2500 2650 2650 2650
$Comp
L power:GND #PWR010
U 1 1 609035B4
P 1900 3900
F 0 "#PWR010" H 1900 3650 50 0001 C CNN
F 1 "GND" H 1905 3727 50 0000 C CNN
F 2 "" H 1900 3900 50 0001 C CNN
F 3 "" H 1900 3900 50 0001 C CNN
1 1900 3900
1 0 0 -1
$EndComp
Text Label 2500 2850 0 50 ~ 0
D0
Text Label 2500 2950 0 50 ~ 0
D1
Text Label 2500 3050 0 50 ~ 0
D2
Text Label 2500 3150 0 50 ~ 0
D3
Text Label 2500 3250 0 50 ~ 0
D4
Text Label 2500 3350 0 50 ~ 0
D5
Text Label 2500 3450 0 50 ~ 0
D6
Text Label 2500 3550 0 50 ~ 0
D7
Wire Wire Line
2500 2850 2650 2850
Wire Wire Line
2500 2950 2650 2950
Wire Wire Line
2500 3050 2650 3050
Wire Wire Line
2500 3150 2650 3150
Wire Wire Line
2500 3250 2650 3250
Wire Wire Line
2500 3350 2650 3350
Wire Wire Line
2500 3450 2650 3450
Wire Wire Line
2500 3550 2650 3550
Entry Wire Line
2650 2850 2750 2950
Entry Wire Line
2650 2950 2750 3050
Entry Wire Line
2650 3050 2750 3150
Entry Wire Line
2650 3150 2750 3250
Entry Wire Line
2650 3250 2750 3350
Entry Wire Line
2650 3350 2750 3450
Entry Wire Line
2650 3450 2750 3550
Entry Wire Line
2650 3550 2750 3650
Text Label 2750 3700 3 50 ~ 0
D[0..7]
Text Label 1200 8250 2 50 ~ 0
CLOCK
Text Label 1000 8950 0 50 ~ 0
A0
Text Label 1000 9050 0 50 ~ 0
A1
Text Label 1000 9150 0 50 ~ 0
A2
Text Label 1000 9250 0 50 ~ 0
A3
Wire Wire Line
1300 8950 1000 8950
Wire Wire Line
1300 9050 1000 9050
Wire Wire Line
1300 9150 1000 9150
Wire Wire Line
1300 9250 1000 9250
Entry Wire Line
900 9150 1000 9050
Entry Wire Line
900 9250 1000 9150
Entry Wire Line
900 9350 1000 9250
Text Label 1200 9650 0 50 ~ 0
D0
Text Label 1200 9750 0 50 ~ 0
D1
Text Label 1200 9850 0 50 ~ 0
D2
Text Label 1200 9950 0 50 ~ 0
D3
Text Label 1200 10050 0 50 ~ 0
D4
Text Label 1200 10150 0 50 ~ 0
D5
Text Label 1200 10250 0 50 ~ 0
D6
Text Label 1200 10350 0 50 ~ 0
D7
Wire Wire Line
1200 9650 1300 9650
Wire Wire Line
1200 9750 1300 9750
Wire Wire Line
1200 9850 1300 9850
Wire Wire Line
1200 9950 1300 9950
Wire Wire Line
1200 10050 1300 10050
Wire Wire Line
1200 10150 1300 10150
Wire Wire Line
1200 10250 1300 10250
Wire Wire Line
1200 10350 1300 10350
Entry Wire Line
1100 9750 1200 9650
Entry Wire Line
1100 9850 1200 9750
Entry Wire Line
1100 9950 1200 9850
Entry Wire Line
1100 10050 1200 9950
Entry Wire Line
1100 10150 1200 10050
Entry Wire Line
1100 10250 1200 10150
Entry Wire Line
1100 10350 1200 10250
Entry Wire Line
1100 10450 1200 10350
Text Label 1100 10500 1 50 ~ 0
D[0..7]
Text Label 900 9400 1 50 ~ 0
A[0..3]
$Comp
L power:GND #PWR043
U 1 1 609BB8E2
P 11750 9100
AR Path="/609BB8E2" Ref="#PWR043" Part="1"
AR Path="/609162A8/609BB8E2" Ref="#PWR?" Part="1"
F 0 "#PWR043" H 11750 8850 50 0001 C CNN
F 1 "GND" H 11755 8927 50 0000 C CNN
F 2 "" H 11750 9100 50 0001 C CNN
F 3 "" H 11750 9100 50 0001 C CNN
1 11750 9100
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR026
U 1 1 609B78DA
P 4900 3100
F 0 "#PWR026" H 4900 2850 50 0001 C CNN
F 1 "GND" H 4905 2927 50 0000 C CNN
F 2 "" H 4900 3100 50 0001 C CNN
F 3 "" H 4900 3100 50 0001 C CNN
1 4900 3100
1 0 0 -1
$EndComp
Wire Wire Line
4950 2000 5000 2000
Connection ~ 4950 2000
Wire Wire Line
4950 2200 4950 2000
Wire Wire Line
4900 2200 4950 2200
Text Label 5000 2300 0 50 ~ 0
R~W
Wire Wire Line
4900 2300 5000 2300
Wire Wire Line
4900 2000 4950 2000
Text Label 5000 2000 0 50 ~ 0
RAM_~CS
Text Label 5150 950 1 50 ~ 0
D[0..7]
Entry Wire Line
5050 1100 5150 1000
Entry Wire Line
5050 1800 5150 1700
Entry Wire Line
5050 1700 5150 1600
Entry Wire Line
5050 1600 5150 1500
Entry Wire Line
5050 1500 5150 1400
Entry Wire Line
5050 1400 5150 1300
Entry Wire Line
5050 1300 5150 1200
Entry Wire Line
5050 1200 5150 1100
Wire Wire Line
4900 1800 5050 1800
Wire Wire Line
4900 1700 5050 1700
Wire Wire Line
4900 1600 5050 1600
Wire Wire Line
4900 1500 5050 1500
Wire Wire Line
4900 1400 5050 1400
Wire Wire Line
4900 1300 5050 1300
Wire Wire Line
4900 1200 5050 1200
Wire Wire Line
4900 1100 5050 1100
Text Label 4950 1800 0 50 ~ 0
D3
Text Label 4950 1700 0 50 ~ 0
D4
Text Label 4950 1600 0 50 ~ 0
D5
Text Label 4950 1500 0 50 ~ 0
D6
Text Label 4950 1400 0 50 ~ 0
D7
Text Label 4950 1300 0 50 ~ 0
D2
Text Label 4950 1200 0 50 ~ 0
D1
Text Label 4950 1100 0 50 ~ 0
D0
$Comp
L pda6502v2:AS6C4008-55PCN U5
U 1 1 608E2DE2
P 4400 1800
F 0 "U5" H 4400 2881 50 0000 C CNN
F 1 "AS6C4008-55PCN" H 4400 2790 50 0000 C CNN
F 2 "Package_DIP:DIP-32_W15.24mm" H 4400 1700 50 0001 C CNN
F 3 "https://www.alliancememory.com/wp-content/uploads/pdf/AS6C4008.pdf" H 4400 1700 50 0001 C CNN
1 4400 1800
1 0 0 -1
$EndComp
Text Label 3700 1100 0 50 ~ 0
A7
Text Label 3700 1200 0 50 ~ 0
A6
Text Label 3700 1300 0 50 ~ 0
A5
Text Label 3700 1400 0 50 ~ 0
A4
Text Label 3700 1500 0 50 ~ 0
A3
Text Label 3700 1600 0 50 ~ 0
A2
Text Label 3700 1700 0 50 ~ 0
A1
Text Label 3700 1800 0 50 ~ 0
A0
Text Label 3700 1900 0 50 ~ 0
A8
Text Label 3700 2000 0 50 ~ 0
A9
Text Label 3700 2200 0 50 ~ 0
A10
Text Label 3700 2100 0 50 ~ 0
A11
Text Label 3700 2300 0 50 ~ 0
A12
Text Label 3700 2400 0 50 ~ 0
A13
Text Label 3700 2500 0 50 ~ 0
A14
Wire Wire Line
3900 1100 3700 1100
Wire Wire Line
3900 1200 3700 1200
Wire Wire Line
3900 1300 3700 1300
Wire Wire Line
3900 1400 3700 1400
Wire Wire Line
3900 1500 3700 1500
Wire Wire Line
3900 1600 3700 1600
Wire Wire Line
3900 1700 3700 1700
Wire Wire Line
3900 1800 3700 1800
Wire Wire Line
3900 1900 3700 1900
Wire Wire Line
3900 2000 3700 2000
Wire Wire Line
3900 2100 3700 2100
Wire Wire Line
3900 2200 3700 2200
Wire Wire Line
3900 2300 3700 2300
Wire Wire Line
3900 2400 3700 2400
Wire Wire Line
3900 2500 3700 2500
Entry Wire Line
3600 1300 3700 1200
Entry Wire Line
3600 1400 3700 1300
Entry Wire Line
3600 1500 3700 1400
Entry Wire Line
3600 1600 3700 1500
Entry Wire Line
3600 1700 3700 1600
Entry Wire Line
3600 1800 3700 1700
Entry Wire Line
3600 1900 3700 1800
Entry Wire Line
3600 2000 3700 1900
Entry Wire Line
3600 2100 3700 2000
Entry Wire Line
3600 2200 3700 2100
Entry Wire Line
3600 2300 3700 2200
Entry Wire Line
3600 2400 3700 2300
Entry Wire Line
3600 2500 3700 2400
Entry Wire Line
3600 2600 3700 2500
$Comp
L pda6502v2:AT25M01 U7
U 1 1 609BB8D5
P 11750 8800
AR Path="/609BB8D5" Ref="U7" Part="1"
AR Path="/609162A8/609BB8D5" Ref="U?" Part="1"
F 0 "U7" H 11850 9200 50 0000 C CNN
F 1 "AT25M01" H 11950 9100 50 0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 11750 8800 50 0001 C CNN
F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-8824-SEEPROM-AT25M01-Datasheet.pdf" H 11750 8800 50 0001 C CNN
1 11750 8800
1 0 0 -1
$EndComp
Text Label 12500 8900 0 50 ~ 0
FLASH_SCK
Text Label 12500 8800 0 50 ~ 0
FLASH_MOSI
Text Label 12500 8700 0 50 ~ 0
FLASH_MISO
Text Label 12500 9000 0 50 ~ 0
FLASH_~CS
Entry Wire Line
3600 1200 3700 1100
Text Label 2750 1000 1 50 ~ 0
A[0..15]
Entry Wire Line
2650 1150 2750 1050
Entry Wire Line
2750 1150 2650 1250
Entry Wire Line
2650 1350 2750 1250
Entry Wire Line
2650 1450 2750 1350
Entry Wire Line
2650 1550 2750 1450
Entry Wire Line
2650 1650 2750 1550
Entry Wire Line
2650 1750 2750 1650
Entry Wire Line
2650 1850 2750 1750
Entry Wire Line
2650 1950 2750 1850
Entry Wire Line
2650 2050 2750 1950
Entry Wire Line
2650 2150 2750 2050
Entry Wire Line
2650 2250 2750 2150
Entry Wire Line
2650 2350 2750 2250
Entry Wire Line
2650 2450 2750 2350
Entry Wire Line
2650 2550 2750 2450
Entry Wire Line
2650 2650 2750 2550
Text Label 1200 8150 2 50 ~ 0
~RESET
Text Label 1200 9450 2 50 ~ 0
R~W
Text Label 1200 2350 2 50 ~ 0
R~W
Text Label 1200 2650 2 50 ~ 0
READY
Text Label 1200 2750 2 50 ~ 0
BUSEN
$Comp
L power:+3V3 #PWR05
U 1 1 60CEF781
P 800 8650
F 0 "#PWR05" H 800 8500 50 0001 C CNN
F 1 "+3V3" H 815 8823 50 0000 C CNN
F 2 "" H 800 8650 50 0001 C CNN
F 3 "" H 800 8650 50 0001 C CNN
1 800 8650
1 0 0 -1
$EndComp
Wire Wire Line
1300 8650 800 8650
Text Label 1200 8750 2 50 ~ 0
VIA1_~CS
Text Label 1200 8450 2 50 ~ 0
VIA1_~IRQ
Wire Wire Line
1200 9450 1300 9450
Entry Wire Line
900 9050 1000 8950
Wire Wire Line
1300 8750 1200 8750
Wire Wire Line
1300 8450 1200 8450
Wire Wire Line
1300 8150 1200 8150
Wire Wire Line
1300 8250 1200 8250
Wire Wire Line
1200 2350 1300 2350
Wire Wire Line
1200 2650 1300 2650
Wire Wire Line
1200 2750 1300 2750
Wire Wire Line
1200 1150 1300 1150
Wire Wire Line
1200 1450 1300 1450
$Comp
L Device:C_Small C2
U 1 1 60E37263
P 1350 7800
F 0 "C2" H 1442 7846 50 0000 L CNN
F 1 "0.1μF" H 1442 7755 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 1350 7800 50 0001 C CNN
F 3 "~" H 1350 7800 50 0001 C CNN
1 1350 7800
0 1 1 0
$EndComp
$Comp
L power:GND #PWR04
U 1 1 60E3726D
P 1150 7800
F 0 "#PWR04" H 1150 7550 50 0001 C CNN
F 1 "GND" H 1155 7627 50 0000 C CNN
F 2 "" H 1150 7800 50 0001 C CNN
F 3 "" H 1150 7800 50 0001 C CNN
1 1150 7800
1 0 0 -1
$EndComp
Wire Wire Line
1900 7800 1450 7800
Connection ~ 1450 7800
$Comp
L power:+3V3 #PWR03
U 1 1 60E37279
P 1450 7800
F 0 "#PWR03" H 1450 7650 50 0001 C CNN
F 1 "+3V3" H 1465 7973 50 0000 C CNN
F 2 "" H 1450 7800 50 0001 C CNN
F 3 "" H 1450 7800 50 0001 C CNN
1 1450 7800
1 0 0 -1
$EndComp
Wire Wire Line
1300 1950 1200 1950
Wire Wire Line
1300 2050 1200 2050
Text Label 1200 1950 2 50 ~ 0
~IRQ
Text Label 1200 2050 2 50 ~ 0
~NMIRQ
Wire Wire Line
1300 3250 1200 3250
Text Label 1200 3250 2 50 ~ 0
~MLOCK
Wire Wire Line
1300 3550 1200 3550
Text Label 1200 3550 2 50 ~ 0
~SETOV
Wire Wire Line
1300 3050 1200 3050
Text Label 1200 3050 2 50 ~ 0
SYNC
Wire Wire Line
1300 3150 1200 3150
Text Label 1200 3150 2 50 ~ 0
~VECPULL
Text Label 2900 8150 2 50 ~ 0
GPIO1A0
Text Label 2900 8250 2 50 ~ 0
GPIO1A1
Text Label 2900 8450 2 50 ~ 0
GPIO1A3
Text Label 2900 8550 2 50 ~ 0
GPIO1A4
Text Label 2900 8650 2 50 ~ 0
GPIO1A5
Text Label 2900 8750 2 50 ~ 0
GPIO1A6
Text Label 2900 8850 2 50 ~ 0
GPIO1A7
Text Label 2900 8950 2 50 ~ 0
GPIO1AC1
Text Label 2900 9050 2 50 ~ 0
GPIO1AC2
Text Label 3400 8550 0 50 ~ 0
GPIO1B4
Text Label 3400 8650 0 50 ~ 0
GPIO1B5
Text Label 3400 8750 0 50 ~ 0
GPIO1B6
Text Label 3400 8850 0 50 ~ 0
GPIO1B7
Text Label 3400 8950 0 50 ~ 0
GPIO1BC1
Text Label 3400 9050 0 50 ~ 0
GPIO1BC2
$Comp
L Device:C_Small C10
U 1 1 61EE7D5A
P 11950 7950
F 0 "C10" H 12042 7996 50 0000 L CNN
F 1 "0.1μF" H 12042 7905 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 11950 7950 50 0001 C CNN
F 3 "~" H 11950 7950 50 0001 C CNN
1 11950 7950
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR040
U 1 1 61EE7D64
P 11950 8050
F 0 "#PWR040" H 11950 7800 50 0001 C CNN
F 1 "GND" H 11955 7877 50 0000 C CNN
F 2 "" H 11950 8050 50 0001 C CNN
F 3 "" H 11950 8050 50 0001 C CNN
1 11950 8050
1 0 0 -1
$EndComp
Wire Wire Line
4400 3100 4900 3100
Text Label 3600 3100 1 50 ~ 0
A[0..18]
$Comp
L power:GND #PWR024
U 1 1 61DB6E2D
P 2600 9150
F 0 "#PWR024" H 2600 8900 50 0001 C CNN
F 1 "GND" H 2605 8977 50 0000 C CNN
F 2 "" H 2600 9150 50 0001 C CNN
F 3 "" H 2600 9150 50 0001 C CNN
1 2600 9150
1 0 0 -1
$EndComp
Wire Wire Line
2600 9150 2900 9150
$Comp
L Device:C_Small C5
U 1 1 61B70C69
P 2800 7750
F 0 "C5" H 2708 7704 50 0000 R CNN
F 1 "0.1μF" H 2708 7795 50 0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 2800 7750 50 0001 C CNN
F 3 "~" H 2800 7750 50 0001 C CNN
1 2800 7750
0 -1 -1 0
$EndComp
$Comp
L power:+3V3 #PWR015
U 1 1 61BAEF51
P 2900 7750
F 0 "#PWR015" H 2900 7600 50 0001 C CNN
F 1 "+3V3" H 2915 7923 50 0000 C CNN
F 2 "" H 2900 7750 50 0001 C CNN
F 3 "" H 2900 7750 50 0001 C CNN
1 2900 7750
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR029
U 1 1 61BAFD08
P 4300 8050
F 0 "#PWR029" H 4300 7800 50 0001 C CNN
F 1 "GND" H 4305 7877 50 0000 C CNN
F 2 "" H 4300 8050 50 0001 C CNN
F 3 "" H 4300 8050 50 0001 C CNN
1 4300 8050
1 0 0 -1
$EndComp
Wire Wire Line
3400 8050 4300 8050
$Comp
L power:GND #PWR016
U 1 1 61CBB58C
P 2600 7750
F 0 "#PWR016" H 2600 7500 50 0001 C CNN
F 1 "GND" H 2605 7577 50 0000 C CNN
F 2 "" H 2600 7750 50 0001 C CNN
F 3 "" H 2600 7750 50 0001 C CNN
1 2600 7750
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C8
U 1 1 61DB6E19
P 4400 9150
F 0 "C8" H 4308 9104 50 0000 R CNN
F 1 "0.1μF" H 4308 9195 50 0000 R CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 4400 9150 50 0001 C CNN
F 3 "~" H 4400 9150 50 0001 C CNN
1 4400 9150
0 -1 -1 0
$EndComp
$Comp
L power:+3V3 #PWR033
U 1 1 61DB6E23
P 4300 9150
F 0 "#PWR033" H 4300 9000 50 0001 C CNN
F 1 "+3V3" H 4315 9323 50 0000 C CNN
F 2 "" H 4300 9150 50 0001 C CNN
F 3 "" H 4300 9150 50 0001 C CNN
1 4300 9150
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR034
U 1 1 61DB6E65
P 4550 9250
F 0 "#PWR034" H 4550 9000 50 0001 C CNN
F 1 "GND" H 4555 9077 50 0000 C CNN
F 2 "" H 4550 9250 50 0001 C CNN
F 3 "" H 4550 9250 50 0001 C CNN
1 4550 9250
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR028
U 1 1 61A1B743
P 6200 2000
F 0 "#PWR028" H 6200 1750 50 0001 C CNN
F 1 "GND" H 6205 1827 50 0000 C CNN
F 2 "" H 6200 2000 50 0001 C CNN
F 3 "" H 6200 2000 50 0001 C CNN
1 6200 2000
1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR027
U 1 1 61A1C282
P 6200 1400
F 0 "#PWR027" H 6200 1250 50 0001 C CNN
F 1 "+3V3" H 6215 1573 50 0000 C CNN
F 2 "" H 6200 1400 50 0001 C CNN
F 3 "" H 6200 1400 50 0001 C CNN
1 6200 1400
1 0 0 -1
$EndComp
Wire Wire Line
6500 1700 6500 1500
Text Label 6600 1500 0 50 ~ 0
CLOCKSRC
Wire Wire Line
6500 1500 6600 1500
NoConn ~ 5900 1700
$Comp
L power:+3V3 #PWR019
U 1 1 60BDFA87
P 7700 1400
F 0 "#PWR019" H 7700 1250 50 0001 C CNN
F 1 "+3V3" H 7715 1573 50 0000 C CNN
F 2 "" H 7700 1400 50 0001 C CNN
F 3 "" H 7700 1400 50 0001 C CNN
1 7700 1400
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR020
U 1 1 60BE02C4
P 7700 2100
F 0 "#PWR020" H 7700 1850 50 0001 C CNN
F 1 "GND" H 7705 1927 50 0000 C CNN
F 2 "" H 7700 2100 50 0001 C CNN
F 3 "" H 7700 2100 50 0001 C CNN
1 7700 2100
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR025
U 1 1 60C137D1
P 8600 2100
F 0 "#PWR025" H 8600 1850 50 0001 C CNN
F 1 "GND" H 8605 1927 50 0000 C CNN
F 2 "" H 8600 2100 50 0001 C CNN
F 3 "" H 8600 2100 50 0001 C CNN
1 8600 2100
1 0 0 -1
$EndComp
$Comp
L Switch:SW_Push SW1
U 1 1 60C12C39
P 8300 2100
F 0 "SW1" H 8300 2385 50 0000 C CNN
F 1 "SW_Push" H 8300 2294 50 0000 C CNN
F 2 "Button_Switch_THT:SW_PUSH_6mm_H5mm" H 8300 2300 50 0001 C CNN
F 3 "~" H 8300 2300 50 0001 C CNN
1 8300 2100
1 0 0 -1
$EndComp
Wire Wire Line
8000 1750 8000 2100
Wire Wire Line
8000 2100 8100 2100
Connection ~ 8000 1750
$Comp
L pda6502v2:DS1818 U4
U 1 1 6104302F
P 7700 1750
F 0 "U4" H 7472 1796 50 0000 R CNN
F 1 "DS1818" H 7472 1705 50 0000 R CNN
F 2 "Package_TO_SOT_SMD:SOT-23_Handsoldering" H 7700 1750 50 0001 C CNN
F 3 "https://datasheets.maximintegrated.com/en/ds/DS1818.pdf" H 7700 1750 50 0001 C CNN
1 7700 1750
1 0 0 -1
$EndComp
Text Label 1750 4600 0 50 ~ 0
A0
Text Label 1750 4700 0 50 ~ 0
A1
Text Label 1750 4800 0 50 ~ 0
A2
Text Label 1750 4900 0 50 ~ 0
A3
Wire Wire Line
1900 4600 1750 4600
Wire Wire Line
1900 4700 1750 4700
Wire Wire Line
1900 4800 1750 4800
Wire Wire Line
1900 4900 1750 4900
Entry Wire Line
1650 4700 1750 4600
Entry Wire Line
1650 4800 1750 4700
Entry Wire Line
1650 4900 1750 4800
Entry Wire Line
1650 5000 1750 4900
Text Label 1650 5050 1 50 ~ 0
A[0..3]
Text Label 1750 6100 0 50 ~ 0
D0
Text Label 1750 6200 0 50 ~ 0
D1
Text Label 1750 6300 0 50 ~ 0
D2
Text Label 1750 6400 0 50 ~ 0
D3
Text Label 1750 6500 0 50 ~ 0
D4
Text Label 1750 6600 0 50 ~ 0
D5
Text Label 1750 6700 0 50 ~ 0
D6
Text Label 1750 6800 0 50 ~ 0
D7
Wire Wire Line
1750 6100 1900 6100
Wire Wire Line
1750 6200 1900 6200
Wire Wire Line
1750 6300 1900 6300
Wire Wire Line
1750 6400 1900 6400
Wire Wire Line
1750 6500 1900 6500
Wire Wire Line
1750 6600 1900 6600
Wire Wire Line
1750 6700 1900 6700
Wire Wire Line
1750 6800 1900 6800
Entry Wire Line
1650 6200 1750 6100
Entry Wire Line
1650 6300 1750 6200
Entry Wire Line
1650 6400 1750 6300
Entry Wire Line
1650 6500 1750 6400
Entry Wire Line
1650 6600 1750 6500
Entry Wire Line
1650 6700 1750 6600
Entry Wire Line
1650 6800 1750 6700
Entry Wire Line
1650 6900 1750 6800
Text Label 1650 6950 1 50 ~ 0
D[0..7]
$Comp
L power:GND #PWR?
U 1 1 6098E766
P 2400 7000
AR Path="/60905896/6098E766" Ref="#PWR?" Part="1"
AR Path="/6098E766" Ref="#PWR011" Part="1"
F 0 "#PWR011" H 2400 6750 50 0001 C CNN
F 1 "GND" H 2405 6827 50 0000 C CNN
F 2 "" H 2400 7000 50 0001 C CNN
F 3 "" H 2400 7000 50 0001 C CNN
1 2400 7000
1 0 0 -1
$EndComp
Wire Wire Line
1900 5300 1800 5300
Text Label 1800 5300 2 50 ~ 0
UART_~CS
Wire Wire Line
1900 5600 1800 5600
Text Label 1800 5600 2 50 ~ 0
RESET
Text Label 1800 5700 2 50 ~ 0
UART_~IRQ
Wire Wire Line
1900 5700 1800 5700
$Comp
L pda6502v2:SC28L92A1B U11
U 1 1 61E66158
P 2400 5700
F 0 "U11" H 2400 7181 50 0000 C CNN
F 1 "SC28L92A1B" H 2400 7090 50 0000 C CNN
F 2 "Package_QFP:PQFP-44_10x10mm_P0.8mm" H 2250 5850 50 0001 C CNN
F 3 "https://www.nxp.com/docs/en/data-sheet/SC28L92.pdf" H 2250 5850 50 0001 C CNN
1 2400 5700
1 0 0 -1
$EndComp
Connection ~ 2350 4400
Wire Wire Line
2350 4400 2450 4400
Wire Wire Line
2350 7000 2400 7000
Connection ~ 2400 7000
Wire Wire Line
2400 7000 2450 7000
Wire Wire Line
2350 4400 1400 4400
$Comp
L power:+3V3 #PWR08
U 1 1 60E661A7
P 1400 4400
F 0 "#PWR08" H 1400 4250 50 0001 C CNN
F 1 "+3V3" H 1415 4573 50 0000 C CNN
F 2 "" H 1400 4400 50 0001 C CNN
F 3 "" H 1400 4400 50 0001 C CNN
1 1400 4400
1 0 0 -1
$EndComp
Connection ~ 1400 4400
$Comp
L power:GND #PWR09
U 1 1 60E6619B
P 1400 4600
F 0 "#PWR09" H 1400 4350 50 0001 C CNN
F 1 "GND" H 1405 4427 50 0000 C CNN
F 2 "" H 1400 4600 50 0001 C CNN
F 3 "" H 1400 4600 50 0001 C CNN
1 1400 4600
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C3
U 1 1 60E66191
P 1400 4500
F 0 "C3" H 1492 4546 50 0000 L CNN
F 1 "0.1μF" H 1492 4455 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder" H 1400 4500 50 0001 C CNN
F 3 "~" H 1400 4500 50 0001 C CNN
1 1400 4500
1 0 0 -1
$EndComp
Wire Wire Line
1900 5100 1500 5100
Text Label 1500 5100 2 50 ~ 0
UART_IM
Wire Wire Line
1900 5400 1800 5400
Wire Wire Line
1900 5500 1800 5500
Text Label 1800 5500 2 50 ~ 0
UART_~RDN
Text Label 1800 5400 2 50 ~ 0
UART_~WRN
NoConn ~ 1900 5900
$Comp
L power:+3V3 #PWR06
U 1 1 62223BBD
P 1000 5500
F 0 "#PWR06" H 1000 5350 50 0001 C CNN
F 1 "+3V3" H 1015 5673 50 0000 C CNN
F 2 "" H 1000 5500 50 0001 C CNN