EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr USLetter 11000 8500 encoding utf-8 Sheet 1 2 Title "GW4201D (RAM2GS II)" Date "2021-03-02" Rev "1.2" Comp "Garrett's Workshop" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L Connector_Generic:Conn_02x22_Counter_Clockwise J1 U 1 1 5C2DE7F9 P 1300 1800 F 0 "J1" H 1350 2950 50 0000 C BNN F 1 "Memory Expansion" H 1350 2900 50 0000 C CNN F 2 "stdpads:AppleIIgsMemoryExpansion_Edge" H 1300 1800 50 0001 C CNN F 3 "~" H 1300 1800 50 0001 C CNN 1 1300 1800 -1 0 0 -1 $EndComp $Comp L power:GND #PWR0101 U 1 1 5C2DE899 P 1500 800 F 0 "#PWR0101" H 1500 550 50 0001 C CNN F 1 "GND" V 1500 650 50 0000 R CNN F 2 "" H 1500 800 50 0001 C CNN F 3 "" H 1500 800 50 0001 C CNN 1 1500 800 0 -1 1 0 $EndComp $Comp L power:GND #PWR0102 U 1 1 5C2DE8D0 P 1000 800 F 0 "#PWR0102" H 1000 550 50 0001 C CNN F 1 "GND" V 1000 650 50 0000 R CNN F 2 "" H 1000 800 50 0001 C CNN F 3 "" H 1000 800 50 0001 C CNN 1 1000 800 0 1 -1 0 $EndComp 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50 0001 C CNN "LCSC Part" 1 1450 6450 1 0 0 -1 $EndComp Connection ~ 1450 6550 Wire Wire Line 1050 6550 1450 6550 Connection ~ 1450 6350 Wire Wire Line 1050 6350 1450 6350 $Comp L Device:C_Small C7 U 1 1 5F258D44 P 1050 6450 F 0 "C7" H 1142 6496 50 0000 L CNN F 1 "2u2" H 1142 6405 50 0000 L CNN F 2 "stdpads:C_0603" H 1050 6450 50 0001 C CNN F 3 "~" H 1050 6450 50 0001 C CNN F 4 "C23630" H 1050 6450 50 0001 C CNN "LCSC Part" 1 1050 6450 1 0 0 -1 $EndComp $Comp L power:GND #PWR0144 U 1 1 5F234A2F P 2250 7350 F 0 "#PWR0144" H 2250 7100 50 0001 C CNN F 1 "GND" H 2250 7200 50 0000 C CNN F 2 "" H 2250 7350 50 0001 C CNN F 3 "" H 2250 7350 50 0001 C CNN 1 2250 7350 -1 0 0 -1 $EndComp Connection ~ 1050 6950 Wire Wire Line 650 6950 1050 6950 Connection ~ 1050 6750 Wire Wire Line 650 6750 1050 6750 $Comp L Device:C_Small C6 U 1 1 5F2517FD P 650 6450 F 0 "C6" H 742 6496 50 0000 L CNN F 1 "2u2" H 742 6405 50 0000 L CNN F 2 "stdpads:C_0603" H 650 6450 50 0001 C CNN F 3 "~" H 650 6450 50 0001 C CNN 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6500 50 0000 C CNN F 2 "" H 650 6350 50 0001 C CNN F 3 "" H 650 6350 50 0001 C CNN 1 650 6350 1 0 0 -1 $EndComp Connection ~ 650 5950 $Comp L power:+5V #PWR0138 U 1 1 5F1F9E38 P 650 5950 F 0 "#PWR0138" H 650 5800 50 0001 C CNN F 1 "+5V" H 650 6100 50 0000 C CNN F 2 "" H 650 5950 50 0001 C CNN F 3 "" H 650 5950 50 0001 C CNN 1 650 5950 -1 0 0 -1 $EndComp Connection ~ 2250 6150 $Comp L power:GND #PWR0137 U 1 1 5F1F99E2 P 2650 6150 F 0 "#PWR0137" H 2650 5900 50 0001 C CNN F 1 "GND" H 2650 6000 50 0000 C CNN F 2 "" H 2650 6150 50 0001 C CNN F 3 "" H 2650 6150 50 0001 C CNN 1 2650 6150 -1 0 0 -1 $EndComp $Comp L power:+3V3 #PWR0119 U 1 1 5E959F1B P 3900 4950 F 0 "#PWR0119" H 3900 4800 50 0001 C CNN F 1 "+3V3" H 3850 5100 50 0000 C CNN F 2 "" H 3900 4950 50 0001 C CNN F 3 "" H 3900 4950 50 0001 C CNN 1 3900 4950 1 0 0 -1 $EndComp Wire Wire Line 4000 4650 4000 5050 $Comp L Device:R_Pack04 RN5 U 1 1 5EDD8E07 P 4100 5750 F 0 "RN5" V 4300 5750 50 0000 C CNN F 1 "4x33" V 4350 5750 50 0000 C TNN F 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CNN "LCSC Part" 1 3500 4100 1 0 0 -1 $EndComp Text Label 3900 3950 0 50 ~ 0 Ain0 Text Label 3900 2650 0 50 ~ 0 Din1 Text Label 3900 2750 0 50 ~ 0 Din3 Text Label 3100 2650 2 50 ~ 0 FD3 Text Label 3100 2550 2 50 ~ 0 FD1 Text Label 3100 2450 2 50 ~ 0 FD2 Text Label 3100 1650 2 50 ~ 0 FD3 Text Label 3100 1150 2 50 ~ 0 FD0 Text Label 3900 4550 0 50 ~ 0 CROWin1 Text Label 3900 4450 0 50 ~ 0 CROWin0 Text Label 3900 4350 0 50 ~ 0 ~CCAS~in Text Label 3900 4250 0 50 ~ 0 PH2in Text Label 3900 4150 0 50 ~ 0 Ain1 Text Label 3900 4050 0 50 ~ 0 Ain2 Text Label 3900 3850 0 50 ~ 0 ~WE~in Text Label 3100 5750 2 50 ~ 0 FRA9 Text Label 3100 5650 2 50 ~ 0 FRA8 Text Label 3100 5550 2 50 ~ 0 FRA6 Text Label 3100 5450 2 50 ~ 0 FRA3 Text Label 3100 5350 2 50 ~ 0 FRA4 Text Label 3100 5250 2 50 ~ 0 FRA5 Text Label 3100 5150 2 50 ~ 0 FRA7 Text Label 3100 5050 2 50 ~ 0 ~CRAS~ Text Label 3100 4450 2 50 ~ 0 CROW1 Text Label 3100 4350 2 50 ~ 0 CROW0 Text Label 3100 4250 2 50 ~ 0 ~CCAS~ Text Label 3100 4150 2 50 ~ 0 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"+3V3" H 3100 5100 50 0000 C CNN F 2 "" H 3100 4950 50 0001 C CNN F 3 "" H 3100 4950 50 0001 C CNN 1 3100 4950 1 0 0 -1 $EndComp Wire Wire Line 3100 850 3000 850 Wire Wire Line 3100 1050 3100 850 $Comp L power:GND #PWR0117 U 1 1 5E957E2A P 3000 850 F 0 "#PWR0117" H 3000 600 50 0001 C CNN F 1 "GND" H 3000 700 50 0000 C CNN F 2 "" H 3000 850 50 0001 C CNN F 3 "" H 3000 850 50 0001 C CNN 1 3000 850 1 0 0 -1 $EndComp $Comp L power:GND #PWR0115 U 1 1 5E95521F P 3100 1950 F 0 "#PWR0115" H 3100 1700 50 0001 C CNN F 1 "GND" H 3100 1800 50 0000 C CNN F 2 "" H 3100 1950 50 0001 C CNN F 3 "" H 3100 1950 50 0001 C CNN 1 3100 1950 -1 0 0 -1 $EndComp $Comp L power:GND #PWR0114 U 1 1 5E954F76 P 3100 3250 F 0 "#PWR0114" H 3100 3000 50 0001 C CNN F 1 "GND" H 3100 3100 50 0000 C CNN F 2 "" H 3100 3250 50 0001 C CNN F 3 "" H 3100 3250 50 0001 C CNN 1 3100 3250 -1 0 0 -1 $EndComp $Comp L power:GND #PWR0112 U 1 1 5E954B70 P 3100 5850 F 0 "#PWR0112" H 3100 5600 50 0001 C CNN F 1 "GND" H 3100 5700 50 0000 C CNN F 2 "" H 3100 5850 50 0001 C CNN F 3 "" H 3100 5850 50 0001 C CNN 1 3100 5850 -1 0 0 -1 $EndComp $Comp L power:GND #PWR0111 U 1 1 5E954345 P 3100 4550 F 0 "#PWR0111" H 3100 4300 50 0001 C CNN F 1 "GND" H 3100 4400 50 0000 C CNN F 2 "" H 3100 4550 50 0001 C CNN F 3 "" H 3100 4550 50 0001 C CNN 1 3100 4550 -1 0 0 -1 $EndComp $Comp L GW_Logic:74245 U5 U 1 1 5E9514FC P 3500 2800 F 0 "U5" H 3500 3400 50 0000 C CNN F 1 "74LVC245APW" H 3500 2200 50 0000 C CNN F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 3500 2150 50 0001 C TNN F 3 "" H 3500 2900 60 0001 C CNN F 4 "C6082" H 3500 2800 50 0001 C CNN "LCSC Part" 1 3500 2800 1 0 0 -1 $EndComp NoConn ~ 7250 3200 NoConn ~ 7250 3300 NoConn ~ 7250 3400 NoConn ~ 7250 3500 NoConn ~ 7250 3600 NoConn ~ 7250 3700 NoConn ~ 7250 3800 NoConn ~ 7250 3900 NoConn ~ 7250 4000 NoConn ~ 7250 4100 NoConn ~ 7250 4200 NoConn ~ 7250 4300 NoConn ~ 7250 1900 NoConn ~ 7250 2000 NoConn ~ 7250 2100 NoConn ~ 7250 2200 NoConn ~ 7250 2300 NoConn ~ 9400 4950 Wire Wire Line 8550 5150 8600 5150 $Comp L GW_Logic:741G04GW U10 U 1 1 5EBE653F P 9050 5050 F 0 "U10" H 9050 5300 50 0000 C CNN F 1 "74LVC1G04GW" H 9050 4800 50 0000 C CNN F 2 "stdpads:SOT-353" H 9050 4750 50 0001 C TNN F 3 "" H 9050 4850 60 0001 C CNN F 4 "C10237" H 9050 5050 50 0001 C CNN "LCSC Part" 1 9050 5050 -1 0 0 -1 $EndComp $Comp L power:+3V3 #PWR0156 U 1 1 5EBEC19A P 8650 4950 F 0 "#PWR0156" H 8650 4800 50 0001 C CNN F 1 "+3V3" H 8650 5100 50 0000 C CNN F 2 "" H 8650 4950 50 0001 C CNN F 3 "" H 8650 4950 50 0001 C CNN 1 8650 4950 -1 0 0 -1 $EndComp Text Label 8150 5150 2 50 ~ 0 AClk $Comp L Device:R_Pack04 RN1 U 1 1 5E97937D P 8350 5050 F 0 "RN1" V 8050 5050 50 0000 C CNN F 1 "4x33" V 8550 5050 50 0000 C CNN F 2 "stdpads:R4_0402" V 8625 5050 50 0001 C CNN F 3 "~" H 8350 5050 50 0001 C CNN F 4 "C25501" H 8350 5050 50 0001 C CNN "LCSC Part" 1 8350 5050 0 -1 1 0 $EndComp Text Label 8150 4850 2 50 ~ 0 RClk $Comp L power:GND #PWR0116 U 1 1 5EC2C162 P 4900 1150 F 0 "#PWR0116" H 4900 900 50 0001 C CNN F 1 "GND" H 4900 1000 50 0000 C CNN F 2 "" H 4900 1150 50 0001 C CNN F 3 "" H 4900 1150 50 0001 C CNN 1 4900 1150 -1 0 0 -1 $EndComp $Comp L GW_Logic:741G04GW U9 U 1 1 5EC2BBFE P 4500 1050 F 0 "U9" H 4500 1050 50 0000 C CNN F 1 "74LVC1G04GW" H 4500 800 50 0000 C CNN F 2 "stdpads:SOT-353" H 4500 750 50 0001 C TNN F 3 "" H 4500 850 60 0001 C CNN F 4 "C10237" H 4500 1050 50 0001 C CNN "LCSC Part" 1 4500 1050 -1 0 0 -1 $EndComp NoConn ~ 4850 950 $Comp L GW_Logic:74245 U7 U 1 1 5E9535D4 P 3500 5400 F 0 "U7" H 3500 6000 50 0000 C CNN F 1 "74LVC245APW" H 3500 4800 50 0000 C CNN F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 3500 4750 50 0001 C TNN F 3 "" H 3500 5500 60 0001 C CNN F 4 "C6082" H 3500 5400 50 0001 C CNN "LCSC Part" 1 3500 5400 1 0 0 -1 $EndComp NoConn ~ 7250 1200 Wire Wire Line 5850 900 5950 900 Wire Wire Line 5850 5700 5950 5700 Connection ~ 5850 900 Connection ~ 5950 900 Wire Wire Line 5950 900 6050 900 Connection ~ 6050 900 Wire Wire Line 6050 900 6150 900 Connection ~ 6150 900 Wire Wire Line 6150 900 6250 900 Connection ~ 6250 900 Wire Wire Line 6250 900 6350 900 Connection ~ 6350 900 Wire Wire Line 6350 900 6450 900 Connection ~ 6450 900 Wire Wire Line 6450 900 6550 900 Connection ~ 6550 5700 Connection ~ 5950 5700 Wire Wire Line 5950 5700 6050 5700 Connection ~ 6050 5700 Wire Wire Line 6050 5700 6150 5700 Connection ~ 6150 5700 Wire Wire Line 6150 5700 6250 5700 Connection ~ 6250 5700 Wire Wire Line 6250 5700 6350 5700 Connection ~ 6350 5700 Wire Wire Line 6350 5700 6450 5700 Connection ~ 6450 5700 Wire Wire Line 6450 5700 6550 5700 NoConn ~ 8150 4950 NoConn ~ 8150 5050 Wire Wire Line 8600 5150 8600 4850 Wire Wire Line 8600 4850 8550 4850 Connection ~ 8600 5150 Wire Wire Line 8600 5150 8650 5150 NoConn ~ 8550 4950 NoConn ~ 8550 5050 Text Label 4900 1050 0 50 ~ 0 ~CSEL~ $Comp L Mechanical:MountingHole_Pad H5 U 1 1 5F88103E P 2650 4050 F 0 "H5" H 2750 4101 50 0000 L CNN F 1 " " H 2750 4010 50 0000 L CNN F 2 "stdpads:PasteHole_1.152mm_NPTH" H 2650 4050 50 0001 C CNN F 3 "~" H 2650 4050 50 0001 C CNN 1 2650 4050 1 0 0 -1 $EndComp $Comp L power:GND #PWR0113 U 1 1 5F881044 P 2650 4150 F 0 "#PWR0113" H 2650 3900 50 0001 C CNN F 1 "GND" H 2655 3977 50 0000 C CNN F 2 "" H 2650 4150 50 0001 C CNN F 3 "" H 2650 4150 50 0001 C CNN 1 2650 4150 1 0 0 -1 $EndComp Connection ~ 2650 4150 Wire Wire Line 2150 4150 2650 4150 $Comp L Device:R_Small R3 U 1 1 5F2CC469 P 4000 1150 F 0 "R3" V 3950 1150 50 0000 C BNN F 1 "100" V 4000 1150 40 0000 C CNN F 2 "stdpads:R_0805" H 4000 1150 50 0001 C CNN F 3 "~" H 4000 1150 50 0001 C CNN F 4 "C17408" V 4000 1150 50 0001 C CNN "LCSC Part" 1 4000 1150 0 1 1 0 $EndComp Wire Wire Line 1950 4450 1850 4450 Wire Wire Line 1150 4450 1250 4450 Connection ~ 2250 6950 Connection ~ 2250 7350 Connection ~ 2250 7750 $Comp L Device:C_Small C26 U 1 1 5F92777A P 2650 6050 F 0 "C26" H 2742 6096 50 0000 L CNN F 1 "10u" H 2742 6005 50 0000 L CNN F 2 "stdpads:C_0805" H 2650 6050 50 0001 C CNN F 3 "~" H 2650 6050 50 0001 C CNN F 4 "C15850" H 2650 6050 50 0001 C CNN "LCSC Part" 1 2650 6050 1 0 0 -1 $EndComp Wire Wire Line 2250 6150 2650 6150 Wire Wire Line 2650 5950 2250 5950 Connection ~ 2250 5950 Connection ~ 2650 6150 $Comp L power:+3V3 #PWR0148 U 1 1 5F93EC7D P 4100 950 F 0 "#PWR0148" H 4100 800 50 0001 C CNN F 1 "+3V3" H 4100 1100 50 0000 C CNN F 2 "" H 4100 950 50 0001 C CNN F 3 "" H 4100 950 50 0001 C CNN 1 4100 950 1 0 0 -1 $EndComp $Comp L power:+5V #PWR0157 U 1 1 5F940CD5 P 3900 1050 F 0 "#PWR0157" H 3900 900 50 0001 C CNN F 1 "+5V" H 3900 1200 50 0000 C CNN F 2 "" H 3900 1050 50 0001 C CNN F 3 "" H 3900 1050 50 0001 C CNN 1 3900 1050 1 0 0 -1 $EndComp $Comp L Device:C_Small C27 U 1 1 5F944E67 P 2650 6450 F 0 "C27" H 2742 6496 50 0000 L CNN F 1 "2u2" H 2742 6405 50 0000 L CNN F 2 "stdpads:C_0603" H 2650 6450 50 0001 C CNN F 3 "~" H 2650 6450 50 0001 C CNN F 4 "C23630" H 2650 6450 50 0001 C CNN "LCSC Part" 1 2650 6450 1 0 0 -1 $EndComp Wire Wire Line 2650 6350 2250 6350 Connection ~ 2250 6350 Wire Wire Line 2250 6550 2650 6550 Connection ~ 2650 6550 $Comp L GW_Logic:74245 U4 U 1 1 5E950437 P 3500 1500 F 0 "U4" H 3500 2100 50 0000 C CNN F 1 "74AHCT245PW" H 3500 900 50 0000 C CNN F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 3500 850 50 0001 C TNN F 3 "" H 3500 1600 60 0001 C CNN F 4 "C173388" H 3500 1500 50 0001 C CNN "LCSC Part" 1 3500 1500 1 0 0 -1 $EndComp Wire Wire Line 8700 4200 8700 4100 Connection ~ 8700 4200 $Comp L power:GND #PWR? U 1 1 607C165A P 8700 3400 F 0 "#PWR?" H 8700 3150 50 0001 C CNN F 1 "GND" H 8700 3250 50 0000 C CNN F 2 "" H 8700 3400 50 0001 C CNN F 3 "" H 8700 3400 50 0001 C CNN 1 8700 3400 0 1 -1 0 $EndComp $EndSCHEMATC