EESchema Schematic File Version 2 LIBS:power LIBS:device LIBS:conn LIBS:regul LIBS:atmel LIBS:connector LIBS:microchip EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L GND #PWR01 U 1 1 590FFC8A P 3600 2800 F 0 "#PWR01" H 3600 2550 50 0001 C CNN F 1 "GND" H 3600 2650 50 0000 C CNN F 2 "" H 3600 2800 50 0001 C CNN F 3 "" H 3600 2800 50 0001 C CNN 1 3600 2800 1 0 0 -1 $EndComp $Comp L +5V #PWR02 U 1 1 5910000E P 2800 2300 F 0 "#PWR02" H 2800 2150 50 0001 C CNN F 1 "+5V" H 2800 2440 50 0000 C CNN F 2 "" H 2800 2300 50 0001 C CNN F 3 "" H 2800 2300 50 0001 C CNN 1 2800 2300 1 0 0 -1 $EndComp $Comp L GND #PWR03 U 1 1 591001C6 P 6200 6000 F 0 "#PWR03" H 6200 5750 50 0001 C CNN F 1 "GND" H 6200 5850 50 0000 C CNN F 2 "" H 6200 6000 50 0001 C CNN F 3 "" H 6200 6000 50 0001 C CNN 1 6200 6000 1 0 0 -1 $EndComp $Comp L C C4 U 1 1 591002C8 P 6650 2925 F 0 "C4" H 6625 2725 50 0000 L CNN F 1 "0.1uF" H 6575 2650 39 0000 L CNN F 2 "Capacitor_SMD:C_0402_1005Metric" H 6688 2775 50 0001 C CNN F 3 "" H 6650 2925 50 0001 C CNN 1 6650 2925 -1 0 0 1 $EndComp $Comp L C C5 U 1 1 59100318 P 6450 2925 F 0 "C5" H 6400 2725 50 0000 L CNN F 1 "0.1uF" H 6375 2650 39 0000 L CNN F 2 "Capacitor_SMD:C_0402_1005Metric" H 6488 2775 50 0001 C CNN F 3 "" H 6450 2925 50 0001 C CNN 1 6450 2925 -1 0 0 1 $EndComp $Comp L C C3 U 1 1 59100348 P 6850 2925 F 0 "C3" H 6800 2725 50 0000 L CNN F 1 "0.1uF" H 6775 2650 39 0000 L CNN F 2 "Capacitor_SMD:C_0402_1005Metric" H 6888 2775 50 0001 C CNN F 3 "" H 6850 2925 50 0001 C CNN 1 6850 2925 -1 0 0 1 $EndComp $Comp L C C6 U 1 1 5910037F P 6250 2925 F 0 "C6" H 6200 2725 50 0000 L CNN F 1 "0.1uF" H 6175 2650 39 0000 L CNN F 2 "Capacitor_SMD:C_0402_1005Metric" H 6288 2775 50 0001 C CNN F 3 "" H 6250 2925 50 0001 C CNN 1 6250 2925 -1 0 0 1 $EndComp $Comp L R R1 U 1 1 59100D83 P 3175 4725 F 0 "R1" H 3275 4725 50 0000 C CNN F 1 "5.1k" V 3175 4725 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 3105 4725 50 0001 C CNN F 3 "" H 3175 4725 50 0001 C CNN 1 3175 4725 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 59100DF9 P 2925 4725 F 0 "R2" H 2825 4725 50 0000 C CNN F 1 "5.1k" V 2925 4725 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 2855 4725 50 0001 C CNN F 3 "" H 2925 4725 50 0001 C CNN 1 2925 4725 1 0 0 -1 $EndComp $Comp L GND #PWR04 U 1 1 59101019 P 2925 5025 F 0 "#PWR04" H 2925 4775 50 0001 C CNN F 1 "GND" H 2925 4875 50 0000 C CNN F 2 "" H 2925 5025 50 0001 C CNN F 3 "" H 2925 5025 50 0001 C CNN 1 2925 5025 1 0 0 -1 $EndComp $Comp L PWR_FLAG #FLG05 U 1 1 59101C73 P 2500 2300 F 0 "#FLG05" H 2500 2375 50 0001 C CNN F 1 "PWR_FLAG" H 2500 2450 39 0000 C CNN F 2 "" H 2500 2300 50 0001 C CNN F 3 "" H 2500 2300 50 0001 C CNN 1 2500 2300 1 0 0 -1 $EndComp $Comp L Conn_01x01 J3 U 1 1 59107B07 P 8150 3300 F 0 "J3" H 8150 3400 50 0000 C CNN F 1 "CONN_01X01" V 8150 3750 50 0001 C CNN F 2 "Conn_PinHeader_2.00mm:PinHeader_1x01_P2.00mm_Vertical" H 8150 3300 50 0001 C CNN F 3 "" H 8150 3300 50 0001 C CNN 1 8150 3300 1 0 0 -1 $EndComp Text Label 6950 3500 0 60 ~ 0 PA0 Text Label 6950 3600 0 60 ~ 0 PA1 Text Label 6950 3700 0 60 ~ 0 PA2 Text Label 6950 3800 0 60 ~ 0 PA3 Text Label 6950 3900 0 60 ~ 0 PA4 Text Label 6950 4000 0 60 ~ 0 PA5 Text Label 6950 4100 0 60 ~ 0 PA6 Text Label 6950 4200 0 60 ~ 0 PA7 $Comp L +5V #PWR06 U 1 1 591080FA P 8700 3250 F 0 "#PWR06" H 8700 3100 50 0001 C CNN F 1 "+5V" H 8700 3390 50 0000 C CNN F 2 "" H 8700 3250 50 0001 C CNN F 3 "" H 8700 3250 50 0001 C CNN 1 8700 3250 1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 5910816D P 7650 3700 F 0 "#PWR07" H 7650 3450 50 0001 C CNN F 1 "GND" H 7650 3550 50 0000 C CNN F 2 "" H 7650 3700 50 0001 C CNN F 3 "" H 7650 3700 50 0001 C CNN 1 7650 3700 1 0 0 -1 $EndComp $Comp L +3.3V #PWR08 U 1 1 59108246 P 7500 3100 F 0 "#PWR08" H 7500 2950 50 0001 C CNN F 1 "+3.3V" H 7500 3240 50 0000 C CNN F 2 "" H 7500 3100 50 0001 C CNN F 3 "" H 7500 3100 50 0001 C CNN 1 7500 3100 1 0 0 -1 $EndComp Text Label 4550 4350 2 60 ~ 0 PE0 Text Label 4550 4450 2 60 ~ 0 PE1 Text Label 5150 4650 2 60 ~ 0 PE3 Text Label 5150 4800 2 60 ~ 0 PD0 Text Label 5150 4900 2 60 ~ 0 PD1 Text Label 5150 5000 2 60 ~ 0 PD2 Text Label 5150 5100 2 60 ~ 0 PD3 Text Label 5150 5200 2 60 ~ 0 PD4 Text Label 5150 5300 2 60 ~ 0 PD5 Text Label 9900 3550 0 60 ~ 0 PE0 Text Label 9400 3550 2 60 ~ 0 PE1 Text Label 8450 3600 0 60 ~ 0 PE3 Text Label 9900 3850 0 60 ~ 0 PD0 Text Label 9400 3850 2 60 ~ 0 PD1 Text Label 9900 3750 0 60 ~ 0 PD2 Text Label 9400 3750 2 60 ~ 0 PD3 Text Label 9900 3650 0 60 ~ 0 PD4 Text Label 9400 3650 2 60 ~ 0 PD5 Text Label 6950 4350 0 60 ~ 0 PB0 Text Label 6950 4450 0 60 ~ 0 PB1 Text Label 6950 4550 0 60 ~ 0 PB2 Text Label 6950 4650 0 60 ~ 0 PB3 Text Label 6950 4800 0 60 ~ 0 PC0 Text Label 6950 4900 0 60 ~ 0 PC1 Text Label 6950 5000 0 60 ~ 0 PC2 Text Label 6950 5100 0 60 ~ 0 PC3 Text Label 6950 5200 0 60 ~ 0 PC4 Text Label 6950 5300 0 60 ~ 0 PC5 Text Label 6950 5400 0 60 ~ 0 PC6 Text Label 6950 5500 0 60 ~ 0 PC7 Text Label 7950 3900 2 60 ~ 0 PA0 Text Label 8450 3900 0 60 ~ 0 PA1 Text Label 7950 4000 2 60 ~ 0 PA2 Text Label 8450 4000 0 60 ~ 0 PA3 Text Label 7950 4100 2 60 ~ 0 PA4 Text Label 8450 4100 0 60 ~ 0 PA5 Text Label 7950 4200 2 60 ~ 0 PA6 Text Label 8450 4200 0 60 ~ 0 PA7 Text Label 7950 4300 2 60 ~ 0 PB0 Text Label 8450 4300 0 60 ~ 0 PB1 Text Label 9900 4350 0 60 ~ 0 PB2 Text Label 9400 4350 2 60 ~ 0 PB3 Text Label 9900 4250 0 60 ~ 0 PC0 Text Label 9400 4250 2 60 ~ 0 PC1 Text Label 9900 4150 0 60 ~ 0 PC2 Text Label 9400 4150 2 60 ~ 0 PC3 Text Label 9900 4050 0 60 ~ 0 PC4 Text Label 9400 4050 2 60 ~ 0 PC5 Text Label 9900 3950 0 60 ~ 0 PC6 Text Label 9400 3950 2 60 ~ 0 PC7 Text Label 5150 4200 2 60 ~ 0 PR1 Text Label 4675 3600 2 60 ~ 0 PCL Text Label 5150 3700 2 60 ~ 0 PDI Text Label 7950 3800 2 60 ~ 0 PR1 Text Label 7950 3700 2 60 ~ 0 PCL Text Label 7950 3300 2 60 ~ 0 PDI $Comp L +3.3V #PWR09 U 1 1 59130D40 P 4725 1850 F 0 "#PWR09" H 4725 1700 50 0001 C CNN F 1 "+3.3V" H 4725 1990 50 0000 C CNN F 2 "" H 4725 1850 50 0001 C CNN F 3 "" H 4725 1850 50 0001 C CNN 1 4725 1850 1 0 0 -1 $EndComp $Comp L C C2 U 1 1 5918049E P 7150 2925 F 0 "C2" H 7100 2725 50 0000 L CNN F 1 "10uF" H 7075 2650 39 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 7188 2775 50 0001 C CNN F 3 "" H 7150 2925 50 0001 C CNN 1 7150 2925 -1 0 0 1 $EndComp $Comp L R R3 U 1 1 5918161D P 4925 3325 F 0 "R3" H 4825 3325 50 0000 C CNN F 1 "10k" V 4925 3325 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 4855 3325 50 0001 C CNN F 3 "" H 4925 3325 50 0001 C CNN 1 4925 3325 1 0 0 -1 $EndComp $Comp L +3.3V #PWR010 U 1 1 59181740 P 4925 3175 F 0 "#PWR010" H 4925 3025 50 0001 C CNN F 1 "+3.3V" H 4925 3315 50 0000 C CNN F 2 "" H 4925 3175 50 0001 C CNN F 3 "" H 4925 3175 50 0001 C CNN 1 4925 3175 1 0 0 -1 $EndComp $Comp L R R4 U 1 1 591846D9 P 4650 4050 F 0 "R4" H 4550 4050 50 0000 C CNN F 1 "10k" V 4650 4050 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 4580 4050 50 0001 C CNN F 3 "" H 4650 4050 50 0001 C CNN 1 4650 4050 1 0 0 -1 $EndComp $Comp L R R5 U 1 1 5918472E P 4800 4050 F 0 "R5" H 4900 4050 50 0000 C CNN F 1 "10k" V 4800 4050 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 4730 4050 50 0001 C CNN F 3 "" H 4800 4050 50 0001 C CNN 1 4800 4050 1 0 0 -1 $EndComp $Comp L +3.3V #PWR011 U 1 1 59184C0D P 4650 3900 F 0 "#PWR011" H 4650 3750 50 0001 C CNN F 1 "+3.3V" H 4600 4050 50 0000 C CNN F 2 "" H 4650 3900 50 0001 C CNN F 3 "" H 4650 3900 50 0001 C CNN 1 4650 3900 1 0 0 -1 $EndComp $Comp L D_Schottky_x2_KCom_AAK D1 U 1 1 596D9841 P 4300 2050 F 0 "D1" V 4100 1950 50 0000 C CNN F 1 "D_Schottky_x2_KCom_AAK" V 4400 2650 50 0000 C CNN F 2 "Package_TO_SOT_SMD:SOT-23" H 4300 2050 50 0001 C CNN F 3 "" H 4300 2050 50 0001 C CNN 1 4300 2050 0 -1 -1 0 $EndComp $Comp L PWR_FLAG #FLG012 U 1 1 596DAA30 P 3950 1550 F 0 "#FLG012" H 3950 1625 50 0001 C CNN F 1 "PWR_FLAG" H 3950 1700 39 0000 C CNN F 2 "" H 3950 1550 50 0001 C CNN F 3 "" H 3950 1550 50 0001 C CNN 1 3950 1550 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 5912FD33 P 3850 2600 F 0 "C1" H 3750 2700 50 0000 L CNN F 1 "1uF" H 3600 2600 50 0000 L CNN F 2 "Capacitor_SMD:C_0402_1005Metric" H 3888 2450 50 0001 C CNN F 3 "" H 3850 2600 50 0001 C CNN 1 3850 2600 -1 0 0 1 $EndComp $Comp L R R6 U 1 1 596DD7BD P 4100 3800 F 0 "R6" H 4000 3800 50 0000 C CNN F 1 "100k" V 4100 3800 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 4030 3800 50 0001 C CNN F 3 "" H 4100 3800 50 0001 C CNN 1 4100 3800 1 0 0 -1 $EndComp $Comp L R R7 U 1 1 596DD95D P 4100 4350 F 0 "R7" H 4000 4350 50 0000 C CNN F 1 "100k" V 4100 4350 50 0000 C CNN F 2 "Resistor_SMD:R_0402_1005Metric" V 4030 4350 50 0001 C CNN F 3 "" H 4100 4350 50 0001 C CNN 1 4100 4350 1 0 0 -1 $EndComp $Comp L GND #PWR013 U 1 1 596DDBCE P 4100 4650 F 0 "#PWR013" H 4100 4400 50 0001 C CNN F 1 "GND" H 4100 4500 50 0000 C CNN F 2 "" H 4100 4650 50 0001 C CNN F 3 "" H 4100 4650 50 0001 C CNN 1 4100 4650 1 0 0 -1 $EndComp Text Notes 5100 4550 2 60 ~ 0 vbus check pin Text Label 5150 4100 2 60 ~ 0 PR0 Text Label 8450 3800 0 60 ~ 0 PR0 $Comp L PWR_FLAG #FLG014 U 1 1 596E0FA8 P 5075 1850 F 0 "#FLG014" H 5075 1925 50 0001 C CNN F 1 "PWR_FLAG" H 5075 2000 39 0000 C CNN F 2 "" H 5075 1850 50 0001 C CNN F 3 "" H 5075 1850 50 0001 C CNN 1 5075 1850 1 0 0 -1 $EndComp NoConn ~ 2425 5225 NoConn ~ 2425 5325 NoConn ~ 2425 5625 NoConn ~ 2425 5525 NoConn ~ 2425 6125 NoConn ~ 2425 6225 NoConn ~ 2425 6425 NoConn ~ 2425 6525 NoConn ~ 2425 5925 NoConn ~ 2425 5825 NoConn ~ 1525 6825 $Comp L GND #PWR015 U 1 1 59BD0C6D P 3175 5025 F 0 "#PWR015" H 3175 4775 50 0001 C CNN F 1 "GND" H 3175 4875 50 0000 C CNN F 2 "" H 3175 5025 50 0001 C CNN F 3 "" H 3175 5025 50 0001 C CNN 1 3175 5025 1 0 0 -1 $EndComp $Comp L GND #PWR016 U 1 1 59BD16B1 P 2075 6925 F 0 "#PWR016" H 2075 6675 50 0001 C CNN F 1 "GND" H 2075 6775 50 0000 C CNN F 2 "" H 2075 6925 50 0001 C CNN F 3 "" H 2075 6925 50 0001 C CNN 1 2075 6925 1 0 0 -1 $EndComp Text Label 5150 5500 2 39 ~ 0 D+ Text Label 5150 5400 2 39 ~ 0 D- $Comp L +3.3V #PWR017 U 1 1 59BD7920 P 4800 3900 F 0 "#PWR017" H 4800 3750 50 0001 C CNN F 1 "+3.3V" H 4850 4050 50 0000 C CNN F 2 "" H 4800 3900 50 0001 C CNN F 3 "" H 4800 3900 50 0001 C CNN 1 4800 3900 1 0 0 -1 $EndComp $Comp L +BATT #PWR018 U 1 1 59BD7F6C P 8950 3600 F 0 "#PWR018" H 8950 3450 50 0001 C CNN F 1 "+BATT" H 8950 3740 50 0000 C CNN F 2 "" H 8950 3600 50 0001 C CNN F 3 "" H 8950 3600 50 0001 C CNN 1 8950 3600 1 0 0 -1 $EndComp $Comp L +BATT #PWR019 U 1 1 59BD8217 P 4300 1550 F 0 "#PWR019" H 4300 1400 50 0001 C CNN F 1 "+BATT" H 4300 1690 50 0000 C CNN F 2 "" H 4300 1550 50 0001 C CNN F 3 "" H 4300 1550 50 0001 C CNN 1 4300 1550 1 0 0 -1 $EndComp Text Notes 7250 2350 0 60 ~ 0 Col0: A0\nCol1: A1\nCol2: A2\nCol3: A3\nCol4: A4\nCol5: A5\nCol6: A6\nCol7: A7\nCol8: B0\nCol9: B1\nCol10: B2\nCol11: B3\nCol12: C0\nCol13: C1\nCol14: C2\nCol15: C3 Text Notes 7950 1775 0 60 ~ 0 \nRow0: D0\nRow1: D1\nRow2: D2\nRow3: D3\nRow4: D4\nRow5: D5\nRow6: C3\nRow7: C2\nRow8: C1\nRow9: C0\n Text Notes 8550 1975 0 60 ~ 0 E3: E3\nR0: R0\nR1: R1\n\nSDA: E0\nSCL: E1\n\nMI: C6\nMO: C5\nSCK: C7\nSS: C4\n\n Text Notes 7200 800 0 60 ~ 0 PIN MAPPING\n Wire Wire Line 7500 3600 7500 3100 Wire Wire Line 7950 3600 7500 3600 Wire Wire Line 5600 5800 6200 5800 Connection ~ 6000 5800 Connection ~ 6100 5800 Wire Wire Line 6200 5800 6200 6000 Connection ~ 5900 5800 Wire Wire Line 3650 2450 4300 2450 Wire Wire Line 4500 2050 6050 2050 Wire Wire Line 4300 2450 4300 2350 Connection ~ 3850 2450 Wire Wire Line 4100 3950 4100 4200 Wire Wire Line 4100 4500 4100 4650 Connection ~ 4100 4100 Wire Wire Line 4300 4550 5150 4550 Wire Wire Line 7950 3500 7650 3500 Wire Wire Line 7650 3500 7650 3700 Wire Wire Line 8450 3500 8700 3500 Wire Wire Line 8700 3500 8700 3250 Wire Wire Line 2925 4875 2925 5025 Wire Wire Line 3175 4875 3175 5025 Wire Wire Line 2925 4575 2925 4525 Wire Wire Line 2925 4525 2425 4525 Wire Wire Line 3175 4575 3175 4425 Wire Wire Line 3175 4425 2425 4425 Wire Wire Line 1625 6825 2075 6825 Connection ~ 1725 6825 Connection ~ 1825 6825 Wire Wire Line 2075 6825 2075 6925 Connection ~ 1925 6825 Wire Wire Line 2600 5500 5150 5500 Wire Wire Line 2700 5400 5150 5400 Wire Wire Line 2425 3650 4100 3650 Connection ~ 2800 2450 Connection ~ 2800 3650 Wire Wire Line 2800 2450 3050 2450 Wire Wire Line 4725 1850 5075 1850 Connection ~ 4725 2050 Wire Wire Line 4725 2050 4725 1850 Wire Wire Line 2800 2300 2500 2300 Wire Wire Line 4300 4550 4300 4100 Wire Wire Line 4300 4100 4100 4100 Wire Wire Line 4550 4350 5150 4350 Wire Wire Line 4550 4450 5150 4450 Wire Wire Line 4650 4450 4650 4200 Connection ~ 4650 4450 Connection ~ 4800 4350 Wire Wire Line 4800 4200 4800 4350 Wire Wire Line 8450 3700 8950 3700 Wire Wire Line 8950 3700 8950 3600 Wire Wire Line 4300 1750 4300 1550 Wire Wire Line 4300 1550 3950 1550 Wire Notes Line 7200 800 7200 2500 Wire Notes Line 7200 2500 11100 2500 Wire Notes Line 11100 2500 11100 800 Wire Notes Line 11100 800 7200 800 Wire Wire Line 4675 3600 5150 3600 Wire Wire Line 4925 3475 4925 3600 Connection ~ 4925 3600 Connection ~ 5750 3200 Wire Wire Line 6050 2775 7150 2775 Connection ~ 6250 2775 Connection ~ 6450 2775 Connection ~ 6650 2775 Connection ~ 6850 2775 $Comp L GND #PWR020 U 1 1 59BDDA09 P 7150 3075 F 0 "#PWR020" H 7150 2825 50 0001 C CNN F 1 "GND" H 7150 2925 50 0000 C CNN F 2 "" H 7150 3075 50 0001 C CNN F 3 "" H 7150 3075 50 0001 C CNN 1 7150 3075 1 0 0 -1 $EndComp $Comp L GND #PWR021 U 1 1 59BDDA8C P 6850 3075 F 0 "#PWR021" H 6850 2825 50 0001 C CNN F 1 "GND" H 6850 2925 50 0000 C CNN F 2 "" H 6850 3075 50 0001 C CNN F 3 "" H 6850 3075 50 0001 C CNN 1 6850 3075 1 0 0 -1 $EndComp $Comp L GND #PWR022 U 1 1 59BDDAD3 P 6650 3075 F 0 "#PWR022" H 6650 2825 50 0001 C CNN F 1 "GND" H 6650 2925 50 0000 C CNN F 2 "" H 6650 3075 50 0001 C CNN F 3 "" H 6650 3075 50 0001 C CNN 1 6650 3075 1 0 0 -1 $EndComp $Comp L GND #PWR023 U 1 1 59BDDB1A P 6450 3075 F 0 "#PWR023" H 6450 2825 50 0001 C CNN F 1 "GND" H 6450 2925 50 0000 C CNN F 2 "" H 6450 3075 50 0001 C CNN F 3 "" H 6450 3075 50 0001 C CNN 1 6450 3075 1 0 0 -1 $EndComp $Comp L GND #PWR024 U 1 1 59BDDB61 P 6250 3075 F 0 "#PWR024" H 6250 2825 39 0001 C CNN F 1 "GND" H 6250 2925 50 0000 C CNN F 2 "" H 6250 3075 50 0001 C CNN F 3 "" H 6250 3075 50 0001 C CNN 1 6250 3075 1 0 0 -1 $EndComp Connection ~ 6050 2775 Wire Wire Line 6050 2050 6050 3200 Wire Notes Line 2075 1125 5525 1125 Wire Notes Line 5525 1125 5525 3000 Wire Notes Line 5525 3000 2075 3000 Wire Notes Line 2075 3000 2075 1125 Text Notes 2075 1100 0 60 ~ 0 Voltage Regulation and Selection\n Wire Wire Line 3350 2750 3350 2800 Wire Wire Line 3350 2800 3850 2800 Wire Wire Line 3850 2800 3850 2750 Connection ~ 3600 2800 Text Notes 2100 1300 0 51 ~ 0 Note: The battery voltage should be less than\n the voltage output by the 3.3V regulator. Text Notes 9050 1025 0 60 ~ 0 RST: PCL\nPDI: PDI Text Notes 8500 2450 0 61 ~ 0 \nERRATA (rev2):\nThe SS and MO pins are mislabeled on the silkscreen.\nSS should be MO, and MO should be SS. $Comp L Conn_02x09_Odd_Even J2 U 1 1 59BE116E P 8150 3900 F 0 "J2" H 8200 4400 50 0000 C CNN F 1 "Conn_02x09_Odd_Even" H 8200 3400 50 0000 C CNN F 2 "Conn_PinHeader_2.00mm:PinHeader_2x09_P2.00mm_Vertical" H 8150 3900 50 0001 C CNN F 3 "" H 8150 3900 50 0001 C CNN 1 8150 3900 1 0 0 -1 $EndComp $Comp L Conn_02x09_Odd_Even J4 U 1 1 59BE1233 P 9600 3950 F 0 "J4" H 9650 4450 50 0000 C CNN F 1 "Conn_02x09_Odd_Even" H 9650 3450 50 0000 C CNN F 2 "Conn_PinHeader_2.00mm:PinHeader_2x09_P2.00mm_Vertical" H 9600 3950 50 0001 C CNN F 3 "" H 9600 3950 50 0001 C CNN 1 9600 3950 1 0 0 -1 $EndComp $Comp L MCP1700-3302E_SOT23 U1 U 1 1 59BE1A4B P 3350 2450 F 0 "U1" H 3125 2150 50 0000 C CNN F 1 "MCP1700-3302E_SOT23" H 3025 2625 50 0000 L CNN F 2 "Package_TO_SOT_SMD:SOT-23" H 3350 2675 50 0001 C CNN F 3 "" H 3350 2450 50 0001 C CNN 1 3350 2450 1 0 0 -1 $EndComp $Comp L ATXMEGA-A4U-EPAD U2 U 1 1 5A24E79F P 6050 4500 F 0 "U2" H 5300 5675 50 0000 L BNN F 1 "ATXMEGA-A4U-EPAD" H 6250 3250 50 0000 L BNN F 2 "qfn:QFN-44-1EP_7x7mm_Pitch0.5mm_Alt_Silk" H 6050 4500 50 0001 C CIN F 3 "" H 6050 4500 50 0001 C CNN 1 6050 4500 1 0 0 -1 $EndComp Wire Wire Line 6050 3200 5650 3200 Connection ~ 5850 3200 $Comp L USB_C_Receptacle J1 U 1 1 5A25020D P 1825 5225 F 0 "J1" H 1425 6675 50 0000 L CNN F 1 "USB_C_Receptacle" H 2225 6675 50 0000 R CNN F 2 "conn_usb:USB_TypeC_239FC14-00276T-H" H 1975 5225 50 0001 C CNN F 3 "" H 1975 5225 50 0001 C CNN 1 1825 5225 1 0 0 -1 $EndComp Wire Wire Line 2425 4725 2425 4825 Wire Wire Line 2425 4925 2425 5025 Wire Wire Line 2425 5025 2600 5025 Wire Wire Line 2600 5025 2600 5500 Wire Wire Line 2700 5400 2700 4825 Wire Wire Line 2700 4825 2425 4825 Wire Wire Line 2800 2300 2800 3650 Wire Wire Line 2425 3650 2425 4225 Connection ~ 2425 4125 Connection ~ 2425 4025 Connection ~ 2425 3925 $EndSCHEMATC