EESchema Schematic File Version 2 LIBS:device LIBS:power LIBS:conn LIBS:74xx LIBS:ch376 LIBS:regul LIBS:opendous LIBS:switches LIBS:ramcard-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "Albireo" Date "2015-10-14" Rev "" Comp "PulkoTronics" Comment1 "Mass storage, USB and Serial interface for Amstrad CPC" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L 74LS20 U? U 1 1 5058DC2F P 1400 850 AR Path="/5058DC2B" Ref="U?" Part="1" AR Path="/5058DC2F" Ref="IC1" Part="1" F 0 "IC1" H 1400 950 60 0000 C CNN F 1 "74LS20" H 1400 750 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 1400 850 60 0001 C CNN F 3 "" H 1400 850 60 0001 C CNN 1 1400 850 1 0 0 -1 $EndComp $Comp L 74LS20 IC1 U 2 1 5058DC2B P 1400 1400 F 0 "IC1" H 1400 1500 60 0000 C CNN F 1 "74LS20" H 1400 1300 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 1400 1400 60 0001 C CNN F 3 "" H 1400 1400 60 0001 C CNN 2 1400 1400 1 0 0 -1 $EndComp $Comp L 74LS02 U? U 3 1 5058DBC7 P 1400 2400 AR Path="/5058DBC0" Ref="U?" Part="1" AR Path="/5058DBC7" Ref="IC2" Part="3" F 0 "IC2" H 1400 2450 60 0000 C CNN F 1 "74LS02" H 1450 2350 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 1400 2400 60 0001 C CNN F 3 "" H 1400 2400 60 0001 C CNN 3 1400 2400 1 0 0 -1 $EndComp $Comp L 74LS02 U? U 2 1 5058DBC5 P 1400 1900 AR Path="/5058DBC0" Ref="U?" Part="1" AR Path="/5058DBC5" Ref="IC2" Part="2" F 0 "IC2" H 1400 1950 60 0000 C CNN F 1 "74LS02" H 1450 1850 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 1400 1900 60 0001 C CNN F 3 "" H 1400 1900 60 0001 C CNN 2 1400 1900 1 0 0 -1 $EndComp $Comp L GND #PWR01 U 1 1 4DBD3AB8 P 1450 4100 F 0 "#PWR01" H 1450 4100 30 0001 C CNN F 1 "GND" H 1450 4030 30 0001 C CNN F 2 "" H 1450 4100 60 0001 C CNN F 3 "" H 1450 4100 60 0001 C CNN 1 1450 4100 1 0 0 -1 $EndComp $Comp L VCC #PWR02 U 1 1 4DBD3AB1 P 1450 3600 F 0 "#PWR02" H 1450 3700 30 0001 C CNN F 1 "VCC" H 1450 3700 30 0000 C CNN F 2 "" H 1450 3600 60 0001 C CNN F 3 "" H 1450 3600 60 0001 C CNN 1 1450 3600 1 0 0 -1 $EndComp NoConn ~ 900 5000 NoConn ~ 900 5200 NoConn ~ 900 5400 $Comp L VCC #PWR03 U 1 1 4DBBEA82 P 2050 5500 F 0 "#PWR03" H 2050 5600 30 0001 C CNN F 1 "VCC" H 2050 5600 30 0000 C CNN F 2 "" H 2050 5500 60 0001 C CNN F 3 "" H 2050 5500 60 0001 C CNN 1 2050 5500 0 1 1 0 $EndComp Text Label 2000 6700 2 60 ~ 0 A15 Text Label 900 6700 2 60 ~ 0 A14 Text Label 2000 6600 2 60 ~ 0 A13 Text Label 900 6600 2 60 ~ 0 A12 Text Label 2000 6500 2 60 ~ 0 A11 Text Label 900 6500 2 60 ~ 0 A10 Text Label 2000 6400 2 60 ~ 0 A9 Text Label 900 6400 2 60 ~ 0 A8 Text Label 2000 6300 2 60 ~ 0 A7 Text Label 900 6300 2 60 ~ 0 A6 Text Label 2000 6200 2 60 ~ 0 A5 Text Label 900 6200 2 60 ~ 0 A4 Text Label 2000 6100 2 60 ~ 0 A3 Text Label 900 6100 2 60 ~ 0 A2 Text Label 2000 6000 2 60 ~ 0 A1 Text Label 900 6000 2 60 ~ 0 A0 Entry Wire Line 750 5600 650 5700 Entry Wire Line 750 5700 650 5800 Entry Wire Line 750 5800 650 5900 Entry Wire Line 750 5900 650 6000 Text Label 2050 5900 2 60 ~ 0 D7 Text Label 2050 5800 2 60 ~ 0 D5 Text Label 2050 5700 2 60 ~ 0 D3 Text Label 2050 5600 2 60 ~ 0 D1 Text Label 900 5900 2 60 ~ 0 D6 Text Label 900 5800 2 60 ~ 0 D4 Text Label 900 5700 2 60 ~ 0 D2 Text Label 900 5600 2 60 ~ 0 D0 NoConn ~ 900 4700 NoConn ~ 900 4500 NoConn ~ 900 4400 NoConn ~ 2050 6800 NoConn ~ 2050 5400 NoConn ~ 2050 5000 NoConn ~ 2050 4900 NoConn ~ 2050 4600 NoConn ~ 2050 4500 Text Notes 2300 7110 2 60 ~ 0 \ncpc connector $Comp L GND #PWR04 U 1 1 4CA89326 P 2100 4300 F 0 "#PWR04" H 2100 4300 30 0001 C CNN F 1 "GND" H 2100 4230 30 0001 C CNN F 2 "" H 2100 4300 60 0001 C CNN F 3 "" H 2100 4300 60 0001 C CNN 1 2100 4300 -1 0 0 1 $EndComp $Comp L C C4 U 1 1 4CA87152 P 1750 3800 F 0 "C4" H 1800 3900 50 0000 L CNN F 1 "0.1u" H 1800 3700 50 0000 L CNN F 2 "Capacitors_ThroughHole:C_Disc_D3_P2.5" H 1750 3800 60 0001 C CNN F 3 "" H 1750 3800 60 0001 C CNN 1 1750 3800 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 4CA87151 P 1450 3800 F 0 "C3" H 1500 3900 50 0000 L CNN F 1 "1uF" H 1500 3700 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 1450 3800 60 0001 C CNN F 3 "" H 1450 3800 60 0001 C CNN 1 1450 3800 1 0 0 -1 $EndComp $Comp L CONN_25X2 P1 U 1 1 4CA8712F P 1450 5600 F 0 "P1" H 1450 6900 60 0000 C CNN F 1 "CONN_25X2" V 1450 5600 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Straight_2x25" H 1450 5600 60 0001 C CNN F 3 "" H 1450 5600 60 0001 C CNN 1 1450 5600 -1 0 0 1 $EndComp $Comp L C C2 U 1 1 4CA870EF P 1100 3800 F 0 "C2" H 1150 3900 50 0000 L CNN F 1 "1uF" H 1150 3700 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 1100 3800 60 0001 C CNN F 3 "" H 1100 3800 60 0001 C CNN 1 1100 3800 1 0 0 -1 $EndComp $Comp L GND #PWR05 U 1 1 561EB481 P 900 7050 F 0 "#PWR05" H 900 7050 30 0001 C CNN F 1 "GND" H 900 6980 30 0001 C CNN F 2 "" H 900 7050 60 0001 C CNN F 3 "" H 900 7050 60 0001 C CNN 1 900 7050 0 -1 -1 0 $EndComp Text Label 900 5300 0 60 ~ 0 /RD NoConn ~ 900 5500 NoConn ~ 850 4800 NoConn ~ 2050 4700 Text Label 600 700 0 60 ~ 0 A12 Text Label 600 800 0 60 ~ 0 A13 Text Label 600 900 0 60 ~ 0 A14 Text Label 600 1000 0 60 ~ 0 A15 Text Label 600 1450 0 60 ~ 0 A7 Text Label 600 1350 0 60 ~ 0 A9 Text Label 600 1250 0 60 ~ 0 A10 Text Label 600 1550 0 60 ~ 0 A11 $Comp L 74LS02 IC2 U 1 1 561EC3C0 P 2700 1100 F 0 "IC2" H 2700 1150 60 0000 C CNN F 1 "74LS02" H 2750 1050 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 2700 1100 60 0001 C CNN F 3 "" H 2700 1100 60 0000 C CNN 1 2700 1100 1 0 0 -1 $EndComp Text Label 600 2000 0 60 ~ 0 A6 Text Label 600 1800 0 60 ~ 0 A8 Text Label 600 2500 0 60 ~ 0 A5 Text Label 600 2800 0 60 ~ 0 A4 $Comp L C C1 U 1 1 561ECD91 P 750 3800 F 0 "C1" H 800 3900 50 0000 L CNN F 1 "1uF" H 800 3700 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 750 3800 60 0001 C CNN F 3 "" H 750 3800 60 0001 C CNN 1 750 3800 1 0 0 -1 $EndComp Text Label 2100 5300 2 60 ~ 0 /IORQ Text Label 2100 5200 2 60 ~ 0 /WR $Comp L 74LS138 IC3 U 1 1 561ED197 P 3200 2250 F 0 "IC3" H 3300 2750 60 0000 C CNN F 1 "74LS138" H 3350 1701 60 0000 C CNN F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 3200 2250 60 0001 C CNN F 3 "" H 3200 2250 60 0000 C CNN 1 3200 2250 1 0 0 -1 $EndComp $Comp L 74LS02 IC2 U 4 1 561ED363 P 1400 2900 F 0 "IC2" H 1400 2950 60 0000 C CNN F 1 "74LS02" H 1450 2850 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 1400 2900 60 0001 C CNN F 3 "" H 1400 2900 60 0000 C CNN 4 1400 2900 1 0 0 -1 $EndComp Text Label 600 2300 0 60 ~ 0 A2 Text Label 600 3000 0 60 ~ 0 A1 Text Label 2350 2500 0 60 ~ 0 /IORQ Text Label 2350 2600 0 60 ~ 0 A3 Text Label 2350 2400 0 60 ~ 0 CE1 Text Label 3500 1100 2 60 ~ 0 CE1 Text Label 4050 2600 2 60 ~ 0 FE80 NoConn ~ 4050 1900 NoConn ~ 4050 2100 NoConn ~ 4050 2200 NoConn ~ 4050 2300 NoConn ~ 4050 2400 NoConn ~ 4050 2500 $Comp L CH376 IC4 U 1 1 56214228 P 10050 1450 F 0 "IC4" V 10050 1650 60 0000 C CNN F 1 "CH376" V 10050 1100 60 0000 C CNN F 2 "ch376:CH376_SOJ28" H 10050 1750 60 0001 C CNN F 3 "" H 10050 1750 60 0000 C CNN 1 10050 1450 1 0 0 -1 $EndComp Text Label 9450 1500 0 60 ~ 0 A0 Text Label 10700 2100 2 60 ~ 0 D0 Text Label 10700 2000 2 60 ~ 0 D1 Text Label 10700 1900 2 60 ~ 0 D2 Text Label 10700 1800 2 60 ~ 0 D3 Text Label 10700 1700 2 60 ~ 0 D4 Text Label 10700 1600 2 60 ~ 0 D5 Text Label 10700 1500 2 60 ~ 0 D6 Text Label 10700 1400 2 60 ~ 0 D7 $Comp L GND #PWR06 U 1 1 56214A97 P 9150 1900 F 0 "#PWR06" H 9150 1650 50 0001 C CNN F 1 "GND" H 9150 1750 50 0000 C CNN F 2 "" H 9150 1900 60 0000 C CNN F 3 "" H 9150 1900 60 0000 C CNN 1 9150 1900 1 0 0 -1 $EndComp NoConn ~ 9450 1300 Text Label 10700 900 0 60 ~ 0 FE80 Text Label 9450 1000 0 60 ~ 0 /WR Text Label 9450 1100 0 60 ~ 0 /RD $Comp L USB_A P2 U 1 1 56215113 P 8600 1700 F 0 "P2" H 8800 1500 50 0000 C CNN F 1 "USB_A" H 8550 1900 50 0000 C CNN F 2 "Connect:USB_A" V 8550 1600 60 0001 C CNN F 3 "" V 8550 1600 60 0000 C CNN 1 8600 1700 0 -1 -1 0 $EndComp $Comp L GND #PWR07 U 1 1 56215495 P 8350 1200 F 0 "#PWR07" H 8350 950 50 0001 C CNN F 1 "GND" H 8350 1050 50 0000 C CNN F 2 "" H 8350 1200 60 0000 C CNN F 3 "" H 8350 1200 60 0000 C CNN 1 8350 1200 1 0 0 -1 $EndComp $Comp L VCC #PWR08 U 1 1 56215624 P 8900 2400 F 0 "#PWR08" H 8900 2250 50 0001 C CNN F 1 "VCC" H 8900 2550 50 0000 C CNN F 2 "" H 8900 2400 60 0000 C CNN F 3 "" H 8900 2400 60 0000 C CNN 1 8900 2400 -1 0 0 1 $EndComp $Comp L R R1 U 1 1 56215821 P 8900 2200 F 0 "R1" V 8980 2200 50 0000 C CNN F 1 "2R" V 8900 2200 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 8830 2200 30 0001 C CNN F 3 "" H 8900 2200 30 0000 C CNN 1 8900 2200 1 0 0 -1 $EndComp $Comp L CP C5 U 1 1 56215B06 P 8550 2200 F 0 "C5" H 8575 2300 50 0000 L CNN F 1 "100u" H 8575 2100 50 0000 L CNN F 2 "Capacitors_ThroughHole:C_Radial_D5_L6_P2.5" H 8588 2050 30 0001 C CNN F 3 "" H 8550 2200 60 0000 C CNN 1 8550 2200 0 1 1 0 $EndComp $Comp L C C6 U 1 1 562163D5 P 9300 1600 F 0 "C6" V 9150 1550 50 0000 L CNN F 1 "10nF" V 9250 1300 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 9338 1450 30 0001 C CNN F 3 "" H 9300 1600 60 0000 C CNN 1 9300 1600 0 1 1 0 $EndComp Wire Wire Line 1850 5600 2050 5600 Wire Wire Line 1850 5800 2050 5800 Connection ~ 1100 3950 Wire Wire Line 750 3950 1750 3950 Connection ~ 1450 3650 Wire Wire Line 1450 3650 1450 3600 Wire Wire Line 800 4900 1050 4900 Wire Wire Line 1050 5000 900 5000 Wire Wire Line 1050 5100 900 5100 Wire Wire Line 1050 5200 900 5200 Wire Wire Line 1050 5300 900 5300 Wire Wire Line 1050 5400 900 5400 Wire Bus Line 700 6000 700 6700 Wire Wire Line 1050 6000 900 6000 Wire Wire Line 1050 6200 900 6200 Wire Wire Line 1050 6400 900 6400 Wire Wire Line 1050 6600 900 6600 Wire Wire Line 1050 5700 750 5700 Wire Wire Line 1050 5900 750 5900 Wire Wire Line 1050 4500 900 4500 Wire Wire Line 1050 4700 900 4700 Wire Wire Line 1850 6800 2050 6800 Wire Wire Line 1850 5100 2050 5100 Wire Wire Line 1850 4900 2050 4900 Wire Wire Line 1850 4600 2050 4600 Wire Wire Line 2100 4300 2100 4400 Wire Wire Line 2100 4400 1850 4400 Wire Wire Line 2100 5300 1850 5300 Wire Wire Line 2100 5200 1850 5200 Wire Wire Line 1850 4500 2050 4500 Wire Wire Line 1850 4800 2050 4800 Wire Wire Line 1850 5000 2050 5000 Wire Wire Line 1850 5400 2050 5400 Wire Wire Line 1050 6800 900 6800 Wire Wire Line 1050 4600 900 4600 Wire Wire Line 1050 4400 900 4400 Wire Wire Line 2050 4700 1850 4700 Wire Bus Line 750 5600 750 5900 Wire Wire Line 1050 5800 750 5800 Wire Wire Line 1050 5600 750 5600 Wire Wire Line 1050 6700 900 6700 Wire Wire Line 1050 6500 900 6500 Wire Wire Line 1050 6300 900 6300 Wire Wire Line 1050 6100 900 6100 Wire Wire Line 1850 6700 2000 6700 Wire Wire Line 1850 6600 2000 6600 Wire Wire Line 1850 6500 2000 6500 Wire Wire Line 1850 6400 2000 6400 Wire Wire Line 1850 6300 2000 6300 Wire Wire Line 1850 6200 2000 6200 Wire Wire Line 1850 6100 2000 6100 Wire Wire Line 1850 6000 2000 6000 Wire Bus Line 2150 6000 2150 6700 Wire Wire Line 2050 5500 1850 5500 Wire Wire Line 1050 4800 850 4800 Wire Wire Line 1050 5500 900 5500 Wire Wire Line 1450 4100 1450 3950 Connection ~ 1450 3950 Wire Wire Line 750 3650 1750 3650 Connection ~ 1100 3650 Wire Wire Line 1850 5900 2050 5900 Wire Wire Line 1850 5700 2050 5700 Wire Wire Line 900 6800 900 7050 Wire Wire Line 800 700 600 700 Wire Wire Line 800 800 600 800 Wire Wire Line 800 900 600 900 Wire Wire Line 800 1000 600 1000 Wire Wire Line 800 1250 600 1250 Wire Wire Line 800 1350 600 1350 Wire Wire Line 800 1450 600 1450 Wire Wire Line 800 1550 600 1550 Wire Wire Line 2000 850 2100 850 Wire Wire Line 2100 850 2100 1000 Wire Wire Line 2000 1400 2100 1400 Wire Wire Line 2100 1400 2100 1200 Wire Wire Line 800 1800 600 1800 Wire Wire Line 800 2000 600 2000 Wire Wire Line 800 2300 600 2300 Wire Wire Line 800 2500 600 2500 Wire Wire Line 2000 1900 2600 1900 Wire Wire Line 2000 2400 2000 2000 Wire Wire Line 2000 2000 2600 2000 Wire Wire Line 800 2800 600 2800 Wire Wire Line 800 3000 600 3000 Wire Wire Line 2000 2900 2100 2900 Wire Wire Line 2100 2900 2100 2100 Wire Wire Line 2100 2100 2600 2100 Wire Wire Line 2600 2600 2350 2600 Wire Wire Line 2600 2500 2350 2500 Wire Wire Line 2600 2400 2350 2400 Wire Wire Line 3300 1100 3500 1100 Wire Wire Line 3800 2600 4050 2600 Wire Wire Line 3800 1900 4050 1900 Wire Wire Line 3800 2000 4050 2000 Wire Wire Line 3800 2100 4050 2100 Wire Wire Line 3800 2200 4050 2200 Wire Wire Line 3800 2300 4050 2300 Wire Wire Line 3800 2400 4050 2400 Wire Wire Line 3800 2500 4050 2500 Wire Wire Line 10550 900 10700 900 Wire Wire Line 10550 1000 10700 1000 Wire Wire Line 10550 1100 10700 1100 Wire Wire Line 10550 1200 10900 1200 Wire Wire Line 10550 1300 10700 1300 Wire Wire Line 10550 1400 10700 1400 Wire Wire Line 10550 1500 10700 1500 Wire Wire Line 10550 1600 10700 1600 Wire Wire Line 10550 1700 10700 1700 Wire Wire Line 10550 1800 10700 1800 Wire Wire Line 10550 1900 10700 1900 Wire Wire Line 10550 2000 10700 2000 Wire Wire Line 10550 2100 10700 2100 Wire Wire Line 9350 800 9600 800 Wire Wire Line 9350 900 9600 900 Wire Wire Line 9600 1000 9450 1000 Wire Wire Line 9600 1100 9450 1100 Wire Wire Line 8250 1200 9600 1200 Wire Wire Line 9600 1300 9450 1300 Wire Wire Line 9600 1400 9450 1400 Wire Wire Line 9600 1500 9450 1500 Wire Wire Line 8900 1700 9600 1700 Wire Wire Line 8900 1800 9600 1800 Wire Wire Line 9150 1900 9600 1900 Wire Wire Line 8900 1600 8900 1200 Wire Wire Line 8500 1200 8500 1400 Connection ~ 8900 1200 Connection ~ 8500 1200 Wire Wire Line 8900 1900 8900 2050 Wire Wire Line 8700 2200 8700 2050 Wire Wire Line 8700 2050 8900 2050 Wire Wire Line 8400 2200 8250 2200 Wire Wire Line 8250 2200 8250 1200 Connection ~ 8350 1200 Connection ~ 8900 2050 Wire Wire Line 9150 1900 9150 1600 Wire Wire Line 9450 1600 10100 1600 Text Label 9800 5350 0 60 ~ 0 /SD_CS Text Label 9900 6100 0 60 ~ 0 SD_DI Text Label 9800 5800 0 60 ~ 0 SD_CLK Text Label 9850 5650 0 60 ~ 0 SD_DO $Comp L +3.3V #PWR09 U 1 1 56220A10 P 10900 4100 F 0 "#PWR09" H 10900 3950 50 0001 C CNN F 1 "+3.3V" H 10900 4240 50 0000 C CNN F 2 "" H 10900 4100 60 0000 C CNN F 3 "" H 10900 4100 60 0000 C CNN 1 10900 4100 1 0 0 -1 $EndComp $Comp L LD1117S33CTR U1 U 1 1 562212C4 P 10400 4150 F 0 "U1" H 10400 4400 40 0000 C CNN F 1 "LD1117S33CTR" H 10400 4350 40 0000 C CNN F 2 "TO_SOT_Packages_SMD:SOT-223" H 10400 4250 40 0000 C CNN F 3 "" H 10400 4150 60 0000 C CNN 1 10400 4150 1 0 0 -1 $EndComp $Comp L GND #PWR010 U 1 1 5622141D P 10400 4550 F 0 "#PWR010" H 10400 4300 50 0001 C CNN F 1 "GND" H 10400 4400 50 0000 C CNN F 2 "" H 10400 4550 60 0000 C CNN F 3 "" H 10400 4550 60 0000 C CNN 1 10400 4550 1 0 0 -1 $EndComp $Comp L VCC #PWR011 U 1 1 56221658 P 9900 4100 F 0 "#PWR011" H 9900 3950 50 0001 C CNN F 1 "VCC" H 9900 4250 50 0000 C CNN F 2 "" H 9900 4100 60 0000 C CNN F 3 "" H 9900 4100 60 0000 C CNN 1 9900 4100 1 0 0 -1 $EndComp Wire Wire Line 9900 4100 10000 4100 Wire Wire Line 10400 4400 10400 4550 Wire Wire Line 10800 4100 10900 4100 $Comp L CP C7 U 1 1 56221A22 P 10900 4350 F 0 "C7" H 10925 4450 50 0000 L CNN F 1 "10u" H 10925 4250 50 0000 L CNN F 2 "Capacitors_ThroughHole:C_Radial_D5_L6_P2.5" H 10938 4200 30 0001 C CNN F 3 "" H 10900 4350 60 0000 C CNN 1 10900 4350 1 0 0 -1 $EndComp Wire Wire Line 10900 4100 10900 4200 Wire Wire Line 10900 4500 10400 4500 Connection ~ 10400 4500 Wire Wire Line 8900 2400 8900 2350 $Comp L +3.3V #PWR012 U 1 1 56222B51 P 9850 5900 F 0 "#PWR012" H 9850 5750 50 0001 C CNN F 1 "+3.3V" H 9850 6040 50 0000 C CNN F 2 "" H 9850 5900 60 0000 C CNN F 3 "" H 9850 5900 60 0000 C CNN 1 9850 5900 0 -1 -1 0 $EndComp NoConn ~ 10150 5550 Text Label 10700 1300 0 60 ~ 0 /SD_CS Text Label 10700 1000 0 60 ~ 0 SD_CLK Text Label 9450 1400 0 60 ~ 0 SD_DO Text Label 10700 1100 0 60 ~ 0 SD_DI Text Label 4050 2000 2 60 ~ 0 FEBx Text Notes 9800 3800 0 60 ~ 0 OPTIONAL SD card support Wire Notes Line 11150 3600 9400 3600 Wire Notes Line 9400 3600 9400 6400 Wire Notes Line 9400 6400 11150 6400 Wire Notes Line 11150 6400 11150 3600 Wire Notes Line 11100 550 8000 550 Wire Notes Line 8000 550 8000 2650 Wire Notes Line 8000 2650 11100 2650 Wire Notes Line 11100 2650 11100 550 Text Notes 10150 2500 0 60 ~ 0 USB controller Wire Notes Line 500 500 500 3200 Wire Notes Line 500 3200 4200 3200 Wire Notes Line 4200 3200 4200 500 Wire Notes Line 4200 500 500 500 Text Notes 3250 700 0 60 ~ 0 Address decoding $Comp L TL16C550C U3 U 1 1 56228CDB P 6150 1750 F 0 "U3" H 6250 1800 60 0000 C CNN F 1 "TL16C550C" H 6250 1900 60 0000 C CNN F 2 "Housings_QFP:TQFP-48_7x7mm_Pitch0.5mm" V 7150 1450 60 0001 C CNN F 3 "" V 7150 1450 60 0000 C CNN 1 6150 1750 1 0 0 -1 $EndComp Wire Notes Line 4600 550 4600 3050 Wire Notes Line 4600 3050 7550 3050 Wire Notes Line 7550 3050 7550 550 Wire Notes Line 7550 550 4600 550 Text Notes 4650 3000 0 60 ~ 0 UART interface Text Label 6000 800 1 60 ~ 0 D0 Text Label 5900 800 1 60 ~ 0 D1 Text Label 5800 800 1 60 ~ 0 D2 Text Label 5700 800 1 60 ~ 0 D3 Text Label 5600 800 1 60 ~ 0 D4 Text Label 5150 1400 2 60 ~ 0 D5 Text Label 5150 1500 2 60 ~ 0 D6 Text Label 5150 1600 2 60 ~ 0 D7 Wire Wire Line 5150 2400 4800 2400 Wire Wire Line 4800 2400 4800 1700 Wire Wire Line 4800 1700 5150 1700 Text Label 5150 2200 2 60 ~ 0 A4 Text Label 5150 2100 2 60 ~ 0 A5 Text Label 5150 2300 2 60 ~ 0 FEBx Text Label 9300 2000 0 60 ~ 0 12MHz Text Label 6150 5100 2 60 ~ 0 24MHz NoConn ~ 5900 2700 Text Label 7100 1900 0 60 ~ 0 A0 Text Label 7100 2000 0 60 ~ 0 A1 Text Label 7100 2100 0 60 ~ 0 A2 NoConn ~ 7100 1800 NoConn ~ 6700 2700 NoConn ~ 6600 2700 Text Label 6000 2700 3 60 ~ 0 /WR Text Label 6300 2700 3 60 ~ 0 /RD $Comp L GND #PWR013 U 1 1 56229E79 P 6200 2850 F 0 "#PWR013" H 6200 2600 50 0001 C CNN F 1 "GND" H 6200 2700 50 0000 C CNN F 2 "" H 6200 2850 60 0000 C CNN F 3 "" H 6200 2850 60 0000 C CNN 1 6200 2850 1 0 0 -1 $EndComp Wire Wire Line 6200 2700 6200 2850 $Comp L VCC #PWR014 U 1 1 5622A2AF P 6100 750 F 0 "#PWR014" H 6100 600 50 0001 C CNN F 1 "VCC" H 6100 900 50 0000 C CNN F 2 "" H 6100 750 60 0000 C CNN F 3 "" H 6100 750 60 0000 C CNN 1 6100 750 1 0 0 -1 $EndComp Text Label 2050 4800 2 60 ~ 0 /RESET Text Label 6500 800 1 60 ~ 0 /CTS Text Label 7100 1500 0 60 ~ 0 /RTS Text Label 5150 1900 2 60 ~ 0 RX Text Label 5150 2000 2 60 ~ 0 TX Wire Wire Line 9600 2000 9300 2000 $Comp L VCC #PWR015 U 1 1 5622DFD0 P 5150 3700 F 0 "#PWR015" H 5150 3550 50 0001 C CNN F 1 "VCC" H 5150 3850 50 0000 C CNN F 2 "" H 5150 3700 60 0000 C CNN F 3 "" H 5150 3700 60 0000 C CNN 1 5150 3700 1 0 0 -1 $EndComp Wire Wire Line 5150 3750 5150 3700 $Comp L GND #PWR016 U 1 1 5622E2CA P 5200 5550 F 0 "#PWR016" H 5200 5300 50 0001 C CNN F 1 "GND" H 5200 5400 50 0000 C CNN F 2 "" H 5200 5550 60 0000 C CNN F 3 "" H 5200 5550 60 0000 C CNN 1 5200 5550 1 0 0 -1 $EndComp Text Label 6000 4000 2 60 ~ 0 RX Text Label 6000 4100 2 60 ~ 0 TX Wire Wire Line 5800 4000 6000 4000 Wire Wire Line 5800 4100 6000 4100 Text Label 6000 4200 2 60 ~ 0 /CTS Text Label 6000 4300 2 60 ~ 0 /RTS Wire Wire Line 5800 4200 6000 4200 Wire Wire Line 5800 4300 6000 4300 Text Label 5800 2700 3 60 ~ 0 24MHz Text Label 6150 5000 2 60 ~ 0 12MHz Wire Wire Line 5800 4900 6150 4900 Wire Wire Line 5800 5000 6150 5000 Text Label 6000 4400 2 60 ~ 0 GPO2 Wire Wire Line 5800 5100 6150 5100 Text Label 6300 5200 2 60 ~ 0 VBUS_Sense Wire Wire Line 6100 2700 6100 2750 Wire Wire Line 6100 2750 6800 2750 Connection ~ 6200 2750 Wire Wire Line 6400 2750 6400 2700 Wire Wire Line 6800 2750 6800 2700 Connection ~ 6400 2750 Wire Wire Line 6100 800 6100 750 $Comp L R R4 U 1 1 562364F7 P 4350 4350 F 0 "R4" V 4250 4450 50 0000 C CNN F 1 "27" V 4350 4350 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4280 4350 30 0001 C CNN F 3 "" H 4350 4350 30 0000 C CNN 1 4350 4350 0 1 1 0 $EndComp $Comp L R R5 U 1 1 562365B5 P 4350 4450 F 0 "R5" V 4430 4450 50 0000 C CNN F 1 "27" V 4350 4450 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 4280 4450 30 0001 C CNN F 3 "" H 4350 4450 30 0000 C CNN 1 4350 4450 0 1 1 0 $EndComp Wire Wire Line 4500 4350 4600 4350 Wire Wire Line 4500 4450 4600 4450 $Comp L C C8 U 1 1 56236861 P 3900 4700 F 0 "C8" H 3925 4800 50 0000 L CNN F 1 "47pF" H 3925 4600 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 3938 4550 30 0001 C CNN F 3 "" H 3900 4700 60 0000 C CNN 1 3900 4700 1 0 0 -1 $EndComp $Comp L C C9 U 1 1 562368CE P 4100 4700 F 0 "C9" H 4125 4800 50 0000 L CNN F 1 "47pF" H 4125 4600 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 4138 4550 30 0001 C CNN F 3 "" H 4100 4700 60 0000 C CNN 1 4100 4700 1 0 0 -1 $EndComp $Comp L USB_B P3 U 1 1 56236A6D P 3450 4450 F 0 "P3" H 3650 4250 50 0000 C CNN F 1 "USB_B" H 3400 4650 50 0000 C CNN F 2 "Connect:USB_B" V 3400 4350 60 0001 C CNN F 3 "" V 3400 4350 60 0000 C CNN 1 3450 4450 0 -1 1 0 $EndComp Wire Wire Line 3750 4350 4200 4350 Wire Wire Line 3750 4450 4200 4450 Wire Wire Line 3900 4550 3900 4450 Connection ~ 3900 4450 Wire Wire Line 4100 4550 4100 4350 Connection ~ 4100 4350 Wire Wire Line 3750 4550 3750 4850 Wire Wire Line 3750 4850 4100 4850 Connection ~ 3900 4850 Wire Wire Line 3900 4850 3900 5450 $Comp L R R2 U 1 1 562372BC P 3050 4250 F 0 "R2" V 3130 4250 50 0000 C CNN F 1 "4k7" V 3050 4250 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 2980 4250 30 0001 C CNN F 3 "" H 3050 4250 30 0000 C CNN 1 3050 4250 1 0 0 -1 $EndComp $Comp L R R3 U 1 1 5623736D P 3050 4650 F 0 "R3" V 3130 4650 50 0000 C CNN F 1 "10k" V 3050 4650 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 2980 4650 30 0001 C CNN F 3 "" H 3050 4650 30 0000 C CNN 1 3050 4650 1 0 0 -1 $EndComp Wire Wire Line 3750 4250 3750 4100 Wire Wire Line 3750 4100 3050 4100 Wire Wire Line 3050 4400 3050 4500 Wire Wire Line 3050 4800 3050 5050 Connection ~ 3900 5050 Wire Wire Line 3050 4450 2900 4450 Wire Wire Line 2900 4450 2900 5750 Connection ~ 3050 4450 $Comp L C C10 U 1 1 56237A25 P 4350 4000 F 0 "C10" H 4400 4100 50 0000 L CNN F 1 "100nF" H 4400 3900 50 0000 L CNN F 2 "Capacitors_SMD:C_0805" H 4350 4000 60 0001 C CNN F 3 "" H 4350 4000 60 0001 C CNN 1 4350 4000 0 1 1 0 $EndComp $Comp L GND #PWR017 U 1 1 56237FF9 P 4000 4000 F 0 "#PWR017" H 4000 3750 50 0001 C CNN F 1 "GND" H 4000 3850 50 0000 C CNN F 2 "" H 4000 4000 60 0000 C CNN F 3 "" H 4000 4000 60 0000 C CNN 1 4000 4000 1 0 0 -1 $EndComp Wire Wire Line 4000 4000 4200 4000 Wire Notes Line 6450 3400 6450 6700 Wire Notes Line 6450 3400 2750 3400 Wire Notes Line 2750 3400 2750 6700 Text Notes 2950 3650 0 60 ~ 0 UART to USB bridge Text Label 2050 5100 2 60 ~ 0 /INT Text Label 900 5100 0 60 ~ 0 /NMI Text Label 800 4900 0 60 ~ 0 BUSRST Text Label 8800 4550 0 60 ~ 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$Comp L VCC #PWR018 U 1 1 56241F46 P 7900 3950 F 0 "#PWR018" H 7900 3800 50 0001 C CNN F 1 "VCC" H 7900 4100 50 0000 C CNN F 2 "" H 7900 3950 60 0000 C CNN F 3 "" H 7900 3950 60 0000 C CNN 1 7900 3950 -1 0 0 1 $EndComp $Comp L 74LS38 U5 U 1 1 5623C69E P 8100 4550 F 0 "U5" H 8100 4600 60 0000 C CNN F 1 "74LS38" H 8100 4500 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 8100 4550 60 0001 C CNN F 3 "" H 8100 4550 60 0000 C CNN 1 8100 4550 1 0 0 -1 $EndComp $Comp L 74LS38 U5 U 2 1 5623C7AF P 8100 5050 F 0 "U5" H 8100 5100 60 0000 C CNN F 1 "74LS38" H 8100 5000 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 8100 5050 60 0001 C CNN F 3 "" H 8100 5050 60 0000 C CNN 2 8100 5050 1 0 0 -1 $EndComp $Comp L 74LS38 U5 U 3 1 5623C846 P 8100 5650 F 0 "U5" H 8100 5700 60 0000 C CNN F 1 "74LS38" H 8100 5600 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 8100 5650 60 0001 C CNN F 3 "" H 8100 5650 60 0000 C CNN 3 8100 5650 1 0 0 -1 $EndComp $Comp L 74LS38 U5 U 4 1 5623C8AF P 8650 3800 F 0 "U5" H 8650 3850 60 0000 C CNN F 1 "74LS38" H 8650 3750 60 0000 C CNN F 2 "Housings_SOIC:SOIC-14_3.9x8.7mm_Pitch1.27mm" H 8650 3800 60 0001 C CNN F 3 "" H 8650 3800 60 0000 C CNN 4 8650 3800 1 0 0 -1 $EndComp Wire Wire Line 8700 5650 9250 5650 $Comp L R R6 U 1 1 5623E101 P 9250 5500 F 0 "R6" V 9330 5500 50 0000 C CNN F 1 "4K7" V 9250 5500 50 0000 C CNN F 2 "Resistors_SMD:R_0805" V 9180 5500 30 0001 C CNN F 3 "" H 9250 5500 30 0000 C CNN 1 9250 5500 1 0 0 -1 $EndComp $Comp L VCC #PWR019 U 1 1 5623E535 P 9250 5200 F 0 "#PWR019" H 9250 5050 50 0001 C CNN F 1 "VCC" H 9250 5350 50 0000 C CNN F 2 "" H 9250 5200 60 0000 C CNN F 3 "" H 9250 5200 60 0000 C CNN 1 9250 5200 1 0 0 -1 $EndComp Wire Wire Line 9250 5350 9250 5200 $Comp L SW_DIP_x4 S1 U 1 1 56268B08 P 8650 3150 F 0 "S1" H 8650 2900 50 0000 C CNN F 1 "SW_DIP_x4" H 8650 3400 50 0000 C CNN F 2 "Buttons_Switches_ThroughHole:SW_DIP_x4_Slide" H 8600 3150 60 0001 C CNN F 3 "" H 8600 3150 60 0000 C CNN 1 8650 3150 -1 0 0 1 $EndComp Wire Wire Line 8200 3000 8350 3000 Wire Wire Line 8350 3000 8350 3100 Wire Wire Line 8950 3000 9100 3000 Wire Wire Line 8950 3100 9100 3100 Text Label 7900 3200 0 60 ~ 0 PRESET Text Label 9100 3200 0 60 ~ 0 RSTI Wire Wire Line 8950 3200 9100 3200 Wire Wire Line 7900 3200 8350 3200 Text Label 9350 900 0 60 ~ 0 RSTI Wire Wire Line 8350 3300 7900 3300 Wire Wire Line 8950 3300 9100 3300 Text Label 7900 3300 0 60 ~ 0 INT Text Label 9100 3300 0 60 ~ 0 /DCD Text Label 9350 800 0 60 ~ 0 INT Wire Notes Line 2750 6700 6450 6700 Wire Wire Line 5800 5200 6300 5200 Wire Wire Line 6300 5200 6300 5750 $Comp L VCC #PWR020 U 1 1 56280663 P 4500 5200 F 0 "#PWR020" H 4500 5050 50 0001 C CNN F 1 "VCC" H 4500 5350 50 0000 C CNN F 2 "" H 4500 5200 60 0000 C CNN F 3 "" H 4500 5200 60 0000 C CNN 1 4500 5200 0 -1 -1 0 $EndComp Wire Wire Line 4500 5200 4600 5200 Wire Wire Line 5800 4400 6000 4400 Wire Wire Line 3050 5050 3900 5050 Wire Wire Line 6300 5750 2900 5750 Wire Wire Line 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