Improve ESD protection of DIGIO Pins
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@ -844,13 +844,7 @@ Wire Wire Line
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Wire Wire Line
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4900 3700 5450 3700
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Text Label 4900 3400 0 50 ~ 0
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DIGIO0
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Text Label 4900 3500 0 50 ~ 0
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DIGIO1
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Text Label 4900 3600 0 50 ~ 0
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DIGIO2
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Text Label 4900 3700 0 50 ~ 0
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DIGIO3
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DIGIO0_PROT
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$Comp
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L Device:C C102
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U 1 1 5DF4E0DE
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@ -1175,12 +1169,12 @@ $EndComp
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$Comp
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L Power_Protection:USBLC6-2SC6 U101
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U 1 1 5E0F7F35
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P 1800 3450
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F 0 "U101" H 2050 3800 50 0000 C CNN
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F 1 "USBLC6-2SC6" H 1400 3800 50 0000 C CNN
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F 2 "Package_TO_SOT_SMD:SOT-23-6" H 1050 3850 50 0001 C CNN
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F 3 "http://www2.st.com/resource/en/datasheet/CD00050750.pdf" H 2000 3800 50 0001 C CNN
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1 1800 3450
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P 1550 3450
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F 0 "U101" H 1800 3800 50 0000 C CNN
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F 1 "USBLC6-2SC6" H 1150 3800 50 0000 C CNN
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F 2 "Package_TO_SOT_SMD:SOT-23-6" H 800 3850 50 0001 C CNN
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F 3 "http://www2.st.com/resource/en/datasheet/CD00050750.pdf" H 1750 3800 50 0001 C CNN
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1 1550 3450
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1 0 0 -1
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$EndComp
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$Comp
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@ -1197,12 +1191,12 @@ $EndComp
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$Comp
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L power:GND #PWR0108
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U 1 1 5E115EE3
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P 1800 4000
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F 0 "#PWR0108" H 1800 3750 50 0001 C CNN
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F 1 "GND" H 1805 3827 50 0000 C CNN
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F 2 "" H 1800 4000 50 0001 C CNN
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F 3 "" H 1800 4000 50 0001 C CNN
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1 1800 4000
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P 1550 4000
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F 0 "#PWR0108" H 1550 3750 50 0001 C CNN
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F 1 "GND" H 1555 3827 50 0000 C CNN
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F 2 "" H 1550 4000 50 0001 C CNN
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F 3 "" H 1550 4000 50 0001 C CNN
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1 1550 4000
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1 0 0 -1
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$EndComp
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$Comp
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@ -1219,54 +1213,54 @@ $EndComp
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Wire Wire Line
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3700 4000 3700 3950
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Wire Wire Line
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1800 3950 1800 4000
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1550 3950 1550 4000
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Wire Wire Line
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3700 2800 3700 2950
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$Comp
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L power:+3V3 #PWR0107
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U 1 1 5E154ADD
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P 1800 2800
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F 0 "#PWR0107" H 1800 2650 50 0001 C CNN
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F 1 "+3V3" H 1815 2973 50 0000 C CNN
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F 2 "" H 1800 2800 50 0001 C CNN
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F 3 "" H 1800 2800 50 0001 C CNN
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1 1800 2800
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P 1550 2800
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F 0 "#PWR0107" H 1550 2650 50 0001 C CNN
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F 1 "+3V3" H 1565 2973 50 0000 C CNN
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F 2 "" H 1550 2800 50 0001 C CNN
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F 3 "" H 1550 2800 50 0001 C CNN
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1 1550 2800
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1 0 0 -1
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$EndComp
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Wire Wire Line
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1800 2800 1800 2950
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Text Label 2650 3350 2 50 ~ 0
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1550 2800 1550 2950
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Text Label 2400 3350 2 50 ~ 0
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DIGIO0
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Text Label 850 3550 0 50 ~ 0
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DIGIO1
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Text Label 4550 3550 2 50 ~ 0
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DIGIO2
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Text Label 550 3550 0 50 ~ 0
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DIGIO1_PROT
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Text Label 4700 3550 2 50 ~ 0
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DIGIO2_PROT
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Text Label 2900 3350 0 50 ~ 0
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DIGIO3
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Wire Wire Line
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2650 3350 2300 3350
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2400 3350 2050 3350
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Wire Wire Line
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850 3350 1300 3350
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600 3350 1050 3350
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Wire Wire Line
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4550 3350 4200 3350
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Wire Wire Line
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2900 3350 3200 3350
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Wire Wire Line
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850 3550 1300 3550
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550 3550 1050 3550
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Wire Wire Line
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2300 3550 2650 3550
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2050 3550 2600 3550
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Wire Wire Line
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3200 3550 2900 3550
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3200 3550 2650 3550
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Wire Wire Line
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4200 3550 4550 3550
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Text Label 2650 3550 2 50 ~ 0
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DIGIO0
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Text Label 850 3350 0 50 ~ 0
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4200 3550 4700 3550
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Text Label 2600 3550 2 50 ~ 0
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DIGIO0_PROT
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Text Label 600 3350 0 50 ~ 0
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DIGIO1
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Text Label 4550 3350 2 50 ~ 0
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DIGIO2
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Text Label 2900 3550 0 50 ~ 0
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DIGIO3
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Text Label 2650 3550 0 50 ~ 0
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DIGIO3_PROT
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$Comp
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L Device:C C101
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U 1 1 5E1FEFD9
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@ -1500,4 +1494,10 @@ F6 "VREF" O L 7500 3100 50
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F7 "TEMP_OUT" O L 7500 3200 50
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F8 "FRONTEND_TEMP" B L 7500 3650 50
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$EndSheet
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Text Label 4900 3500 0 50 ~ 0
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DIGIO1_PROT
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Text Label 4900 3600 0 50 ~ 0
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DIGIO2_PROT
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Text Label 4900 3700 0 50 ~ 0
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DIGIO3_PROT
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$EndSCHEMATC
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