EESchema Schematic File Version 3 LIBS:power LIBS:device LIBS:transistors LIBS:conn LIBS:linear LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:adc-dac LIBS:memory LIBS:xilinx LIBS:microcontrollers LIBS:dsp LIBS:microchip LIBS:analog_switches LIBS:motorola LIBS:texas LIBS:intel LIBS:audio LIBS:interface LIBS:digital-audio LIBS:philips LIBS:display LIBS:cypress LIBS:siliconi LIBS:opto LIBS:atmel LIBS:contrib LIBS:valves LIBS:lattice LIBS:usbserial LIBS:clock LIBS:tiny-xo2-cache EELAYER 26 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 3 4 Title "Tiny-XO2" Date "2017-09-30" Rev "02" Comp "Markus Koch - notsyncing.net" Comment1 "Licensed under CC BY-SA 3.0" Comment2 "https://l.notsyncing.net/tinyxo2" Comment3 "" Comment4 "USB Serial Conversion" $EndDescr $Comp L ch340g U3 U 1 1 59CE5435 P 4600 1550 F 0 "U3" H 4600 2287 60 0000 C CNN F 1 "ch340g" H 4600 2181 60 0000 C CNN F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 4300 2000 60 0001 C CNN F 3 "" H 4300 2000 60 0001 C CNN 1 4600 1550 1 0 0 -1 $EndComp $Comp L USB_OTG J1 U 1 1 59CE581D P 1150 1300 F 0 "J1" H 1205 1767 50 0000 C CNN F 1 "USB_OTG" H 1205 1676 50 0000 C CNN F 2 "Connectors:USB_Mini-B" H 1300 1250 50 0001 C CNN F 3 "" H 1300 1250 50 0001 C CNN 1 1150 1300 1 0 0 -1 $EndComp $Comp L D_ALT D2 U 1 1 59CE5824 P 1700 1100 F 0 "D2" H 1700 884 50 0000 C CNN F 1 "POL" H 1700 975 50 0000 C CNN F 2 "Diodes_SMD:D_0805" H 1700 1100 50 0001 C CNN F 3 "" H 1700 1100 50 0001 C CNN 1 1700 1100 -1 0 0 1 $EndComp $Comp L GND #PWR013 U 1 1 59CE582B P 1100 1850 F 0 "#PWR013" H 1100 1600 50 0001 C CNN F 1 "GND" H 1105 1677 50 0000 C CNN F 2 "" H 1100 1850 50 0001 C CNN F 3 "" H 1100 1850 50 0001 C CNN 1 1100 1850 1 0 0 -1 $EndComp $Comp L VBUS #PWR011 U 1 1 59CE5831 P 1950 1000 F 0 "#PWR011" H 1950 850 50 0001 C CNN F 1 "VBUS" H 1965 1173 50 0000 C CNN F 2 "" H 1950 1000 50 0001 C CNN F 3 "" H 1950 1000 50 0001 C CNN 1 1950 1000 1 0 0 -1 $EndComp Text Label 1600 1400 0 60 ~ 0 USB- Text Label 1600 1300 0 60 ~ 0 USB+ $Comp L C_Small C8 U 1 1 59CE59BF P 3700 2100 F 0 "C8" H 3792 2146 50 0000 L CNN F 1 "100n" H 3792 2055 50 0000 L CNN F 2 "Capacitors_SMD:C_0603" H 3700 2100 50 0001 C CNN F 3 "" H 3700 2100 50 0001 C CNN 1 3700 2100 1 0 0 -1 $EndComp $Comp L GND #PWR014 U 1 1 59CE5B99 P 3850 2400 F 0 "#PWR014" H 3850 2150 50 0001 C CNN F 1 "GND" H 3855 2227 50 0000 C CNN F 2 "" H 3850 2400 50 0001 C CNN F 3 "" H 3850 2400 50 0001 C CNN 1 3850 2400 1 0 0 -1 $EndComp $Comp L +3V3 #PWR012 U 1 1 59CE5E77 P 3700 1700 F 0 "#PWR012" H 3700 1550 50 0001 C CNN F 1 "+3V3" H 3715 1873 50 0000 C CNN F 2 "" H 3700 1700 50 0001 C CNN F 3 "" H 3700 1700 50 0001 C CNN 1 3700 1700 1 0 0 -1 $EndComp Text Label 4000 1100 2 60 ~ 0 USB+ Text Label 4000 1200 2 60 ~ 0 USB- NoConn ~ 4100 1550 Text HLabel 4000 1450 0 60 Input ~ 0 CLK_USBSER Text HLabel 5300 1100 2 60 Output ~ 0 TXD Text HLabel 5300 1200 2 60 Input ~ 0 RXD Text HLabel 5300 1750 2 60 Output ~ 0 DTR Wire Wire Line 1050 1700 1050 1750 Wire Wire Line 1950 1000 1950 1100 Wire Wire Line 1950 1100 1850 1100 Wire Wire Line 1450 1300 1600 1300 Wire Wire Line 1450 1400 1600 1400 Wire Wire Line 3700 1700 3700 2000 Wire Wire Line 3700 1900 4100 1900 Wire Wire Line 4100 2000 4000 2000 Wire Wire Line 4000 2000 4000 2300 Wire Wire Line 4000 2300 3700 2300 Wire Wire Line 3700 2300 3700 2200 Wire Wire Line 3850 2300 3850 2400 Connection ~ 3850 2300 Wire Wire Line 4100 1800 3700 1800 Connection ~ 3700 1900 Connection ~ 3700 1800 Wire Wire Line 4000 1100 4100 1100 Wire Wire Line 4100 1200 4000 1200 Wire Wire Line 4100 1450 4000 1450 Wire Wire Line 1450 1100 1550 1100 Wire Wire Line 5100 1100 5300 1100 Wire Wire Line 5100 1200 5300 1200 Wire Wire Line 5300 1750 5100 1750 NoConn ~ 5100 1350 NoConn ~ 5100 1450 NoConn ~ 5100 1550 NoConn ~ 5100 1650 NoConn ~ 5100 1850 NoConn ~ 5100 2000 Wire Wire Line 1150 1700 1150 1750 Text Label 1450 1100 0 60 ~ 0 VU NoConn ~ 1450 1500 Wire Wire Line 1150 1750 1050 1750 Wire Wire Line 1100 1750 1100 1850 Connection ~ 1100 1750 $EndSCHEMATC