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 "01" 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 1600 F 0 "U3" H 4600 2337 60 0000 C CNN F 1 "ch340g" H 4600 2231 60 0000 C CNN F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 4300 2050 60 0001 C CNN F 3 "" H 4300 2050 60 0001 C CNN 1 4600 1600 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 #PWR011 U 1 1 59CE582B P 1550 1850 F 0 "#PWR011" H 1550 1600 50 0001 C CNN F 1 "GND" H 1555 1677 50 0000 C CNN F 2 "" H 1550 1850 50 0001 C CNN F 3 "" H 1550 1850 50 0001 C CNN 1 1550 1850 1 0 0 -1 $EndComp $Comp L VBUS #PWR012 U 1 1 59CE5831 P 1950 1000 F 0 "#PWR012" 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 2150 F 0 "C8" H 3792 2196 50 0000 L CNN F 1 "100n" H 3792 2105 50 0000 L CNN F 2 "Capacitors_SMD:C_0603" H 3700 2150 50 0001 C CNN F 3 "" H 3700 2150 50 0001 C CNN 1 3700 2150 1 0 0 -1 $EndComp $Comp L GND #PWR014 U 1 1 59CE5B99 P 3850 2450 F 0 "#PWR014" H 3850 2200 50 0001 C CNN F 1 "GND" H 3855 2277 50 0000 C CNN F 2 "" H 3850 2450 50 0001 C CNN F 3 "" H 3850 2450 50 0001 C CNN 1 3850 2450 1 0 0 -1 $EndComp $Comp L +3V3 #PWR013 U 1 1 59CE5E77 P 3700 1750 F 0 "#PWR013" H 3700 1600 50 0001 C CNN F 1 "+3V3" H 3715 1923 50 0000 C CNN F 2 "" H 3700 1750 50 0001 C CNN F 3 "" H 3700 1750 50 0001 C CNN 1 3700 1750 1 0 0 -1 $EndComp Text Label 4000 1150 2 60 ~ 0 USB+ Text Label 4000 1250 2 60 ~ 0 USB- NoConn ~ 4100 1600 Text HLabel 4000 1500 0 60 Input ~ 0 CLK_USBSER Text HLabel 5300 1150 2 60 Output ~ 0 TXD Text HLabel 5300 1250 2 60 Input ~ 0 RXD Text HLabel 5300 1800 2 60 Output ~ 0 DTR Wire Wire Line 1050 1700 1050 1750 Wire Wire Line 1050 1750 1550 1750 Connection ~ 1150 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 1450 1500 1550 1500 Wire Wire Line 3700 1750 3700 2050 Wire Wire Line 3700 1950 4100 1950 Wire Wire Line 4100 2050 4000 2050 Wire Wire Line 4000 2050 4000 2350 Wire Wire Line 4000 2350 3700 2350 Wire Wire Line 3700 2350 3700 2250 Wire Wire Line 3850 2350 3850 2450 Connection ~ 3850 2350 Wire Wire Line 4100 1850 3700 1850 Connection ~ 3700 1950 Connection ~ 3700 1850 Wire Wire Line 4000 1150 4100 1150 Wire Wire Line 4100 1250 4000 1250 Wire Wire Line 4100 1500 4000 1500 Wire Wire Line 1450 1100 1550 1100 Wire Wire Line 5100 1150 5300 1150 Wire Wire Line 5100 1250 5300 1250 Wire Wire Line 5300 1800 5100 1800 NoConn ~ 5100 1400 NoConn ~ 5100 1500 NoConn ~ 5100 1600 NoConn ~ 5100 1700 NoConn ~ 5100 1900 NoConn ~ 5100 2050 Wire Wire Line 1550 1500 1550 1850 Wire Wire Line 1150 1700 1150 1750 Connection ~ 1550 1750 Text Label 1450 1100 0 60 ~ 0 VU $EndSCHEMATC