EESchema Schematic File Version 2  date Di 11 Jun 2013 22:36:19 CEST
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
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:mur-sat
LIBS:mpu-cache
EELAYER 25  0
EELAYER END
$Descr A4 11700 8267
encoding utf-8
Sheet 1 1
Title "MPU"
Date "11 jun 2013"
Rev "1"
Comp "mur.sat - A Space Art Project"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
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Connection ~ 1750 6050
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 2000 1250
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Wire Wire Line
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Connection ~ 6000 1250
Connection ~ 6600 1250
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Connection ~ 4050 1250
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Connection ~ 2350 1250
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Connection ~ 3650 1250
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Connection ~ 3650 1750
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Connection ~ 2500 5050
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Connection ~ 3150 4800
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3550 5800
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 5200 4650
Wire Wire Line
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Connection ~ 5200 4050
Wire Wire Line
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Wire Wire Line
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Connection ~ 5200 5400
Wire Wire Line
	5200 5450 5200 5400
Wire Wire Line
	8250 3250 8150 3250
Wire Wire Line
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Wire Wire Line
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Connection ~ 6900 1250
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Connection ~ 6700 1250
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Connection ~ 7450 1250
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 7150 1250
Wire Wire Line
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Connection ~ 6800 1250
Wire Wire Line
	6000 1250 6000 1300
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Connection ~ 3250 5950
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
	2000 1700 2000 1750
Wire Wire Line
	4050 1850 4050 1800
Wire Wire Line
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Wire Wire Line
	5500 1350 5500 1400
Wire Wire Line
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Connection ~ 4350 1250
Wire Wire Line
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Connection ~ 6350 1250
Wire Wire Line
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Wire Wire Line
	2100 4500 2150 4500
Wire Wire Line
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Wire Wire Line
	8250 2050 8150 2050
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
	8250 3050 8150 3050
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
	8150 4300 8250 4300
Wire Wire Line
	8150 4600 8250 4600
Wire Wire Line
	8150 4800 8250 4800
Wire Wire Line
	8150 5000 8250 5000
Wire Wire Line
	8150 5200 8250 5200
Wire Wire Line
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Wire Wire Line
	5200 2150 5300 2150
Wire Wire Line
	5200 2350 5300 2350
Wire Wire Line
	5200 2550 5300 2550
Wire Wire Line
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Wire Wire Line
	5200 2950 5300 2950
Wire Wire Line
	5300 3250 5200 3250
Wire Wire Line
	5300 3450 5200 3450
Wire Wire Line
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Wire Wire Line
	3300 2700 3200 2700
Wire Wire Line
	3300 2900 3200 2900
Wire Wire Line
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Wire Wire Line
	4100 3200 4200 3200
Wire Wire Line
	4100 3000 4200 3000
Wire Wire Line
	4100 2800 4200 2800
Wire Wire Line
	4100 2700 4200 2700
Wire Wire Line
	4100 2500 4200 2500
Wire Wire Line
	9950 2550 10050 2550
Wire Wire Line
	9950 2750 10050 2750
Wire Wire Line
	9950 2950 10050 2950
Wire Wire Line
	9150 2350 9050 2350
Wire Wire Line
	9150 2550 9050 2550
Wire Wire Line
	9150 2750 9050 2750
Wire Wire Line
	9150 2950 9050 2950
Wire Wire Line
	9150 4300 9050 4300
Wire Wire Line
	9150 4600 9050 4600
Wire Wire Line
	9050 4800 9150 4800
Wire Wire Line
	9050 5000 9150 5000
Wire Wire Line
	9950 4900 10050 4900
Wire Wire Line
	9950 4700 10050 4700
Wire Wire Line
	9950 4500 10050 4500
Wire Wire Line
	9950 4300 10050 4300
Wire Wire Line
	9100 5150 9100 5100
Wire Wire Line
	9100 5100 9150 5100
Wire Wire Line
	9950 4200 10000 4200
Wire Wire Line
	10000 4200 10000 4150
Wire Wire Line
	9100 3200 9100 3150
Wire Wire Line
	9100 3150 9150 3150
Wire Wire Line
	9100 2200 9100 2250
Wire Wire Line
	9100 2250 9150 2250
Wire Wire Line
	4150 3300 4100 3300
Wire Wire Line
	3250 2350 3250 2400
Wire Wire Line
	3250 2400 3300 2400
Wire Wire Line
	5300 3850 5250 3850
Wire Wire Line
	5250 3850 5250 3800
Wire Wire Line
	2100 3800 2150 3800
Wire Wire Line
	2150 3800 2150 3850
Wire Wire Line
	2200 3600 2100 3600
Connection ~ 2150 3600
Wire Wire Line
	4350 5150 4300 5150
$Comp
L GND #PWR01
U 1 1 51B7856D
P 4300 5150
F 0 "#PWR01" H 4300 5150 30  0001 C CNN
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	0    1    1    0   
$EndComp
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L R R5
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	0    -1   -1   0   
$EndComp
Text Label 10050 2750 0    60   ~ 0
BOOT0
Text Label 10050 2650 0    60   ~ 0
USB_DISC
Text Label 5200 5150 2    60   ~ 0
BOOT0
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L GND #PWR02
U 1 1 51B77875
P 6000 1750
F 0 "#PWR02" H 6000 1750 30  0001 C CNN
F 1 "GND" H 6000 1680 30  0001 C CNN
	1    6000 1750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 51B7777C
P 2650 3650
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$EndComp
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$EndComp
$Comp
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$EndComp
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L GND #PWR04
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L +BATT #PWR05
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	1    2150 3550
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$Comp
L +BATT #PWR06
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L CONN_2 P4
U 1 1 51B776CC
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	1    1750 3700
	-1   0    0    -1  
$EndComp
$Comp
L GND #PWR07
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	1    0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 51B761A5
P 3250 3350
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	1    3250 3350
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR09
U 1 1 51B761A3
P 4150 3350
F 0 "#PWR09" H 4150 3350 30  0001 C CNN
F 1 "GND" H 4150 3280 30  0001 C CNN
	1    4150 3350
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 51B7619B
P 10000 5150
F 0 "#PWR010" H 10000 5150 30  0001 C CNN
F 1 "GND" H 10000 5080 30  0001 C CNN
	1    10000 5150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR011
U 1 1 51B76199
P 9100 5150
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	1    9100 5150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 51B76195
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	1    9100 3200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 51B76190
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F 0 "#PWR013" H 10000 3200 30  0001 C CNN
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	1    10000 3200
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR014
U 1 1 51B76188
P 10000 4150
F 0 "#PWR014" H 10000 4250 30  0001 C CNN
F 1 "VCC" H 10000 4250 30  0000 C CNN
	1    10000 4150
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR015
U 1 1 51B76186
P 9100 4150
F 0 "#PWR015" H 9100 4250 30  0001 C CNN
F 1 "VCC" H 9100 4250 30  0000 C CNN
	1    9100 4150
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR016
U 1 1 51B76181
P 10000 2200
F 0 "#PWR016" H 10000 2300 30  0001 C CNN
F 1 "VCC" H 10000 2300 30  0000 C CNN
	1    10000 2200
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR017
U 1 1 51B7617C
P 9100 2200
F 0 "#PWR017" H 9100 2300 30  0001 C CNN
F 1 "VCC" H 9100 2300 30  0000 C CNN
	1    9100 2200
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR018
U 1 1 51B76179
P 4150 2350
F 0 "#PWR018" H 4150 2450 30  0001 C CNN
F 1 "VCC" H 4150 2450 30  0000 C CNN
	1    4150 2350
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR019
U 1 1 51B76175
P 3250 2350
F 0 "#PWR019" H 3250 2450 30  0001 C CNN
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	1    3250 2350
	1    0    0    -1  
$EndComp
Text Label 4200 2900 0    60   ~ 0
PC12
Text Label 4200 3000 0    60   ~ 0
PC13
Text Label 4200 3100 0    60   ~ 0
PC14
Text Label 4200 3200 0    60   ~ 0
PC15
Text Label 4200 2800 0    60   ~ 0
PC11
Text Label 4200 2700 0    60   ~ 0
PC10
Text Label 4200 2600 0    60   ~ 0
PC9
Text Label 4200 2500 0    60   ~ 0
PC8
Text Label 3200 2500 2    60   ~ 0
PC0
Text Label 3200 2600 2    60   ~ 0
PC1
Text Label 3200 2700 2    60   ~ 0
PC2
Text Label 3200 2800 2    60   ~ 0
PC3
Text Label 3200 3200 2    60   ~ 0
PC7
Text Label 3200 3100 2    60   ~ 0
PC6
Text Label 3200 3000 2    60   ~ 0
PC5
Text Label 3200 2900 2    60   ~ 0
PC4
Text Label 10050 5000 0    60   ~ 0
PA15
Text Label 10050 4900 0    60   ~ 0
PA14
Text Label 10050 4800 0    60   ~ 0
PA13
Text Label 10050 4500 0    60   ~ 0
PA10
Text Label 10050 4400 0    60   ~ 0
PB9
Text Label 10050 4300 0    60   ~ 0
PB8
Text Label 10050 4700 0    60   ~ 0
PB12
Text Label 10050 4600 0    60   ~ 0
PB11
Text Label 9050 4700 2    60   ~ 0
PB4
Text Label 9050 4800 2    60   ~ 0
PB5
Text Label 9050 4900 2    60   ~ 0
PB6
Text Label 9050 5000 2    60   ~ 0
PB7
Text Label 9050 4600 2    60   ~ 0
PB3
Text Label 9050 4500 2    60   ~ 0
PB2
Text Label 9050 4400 2    60   ~ 0
PB1
Text Label 9050 4300 2    60   ~ 0
PB0
Text Label 9050 2350 2    60   ~ 0
PA0
Text Label 9050 2450 2    60   ~ 0
PA1
Text Label 9050 2550 2    60   ~ 0
PA2
Text Label 9050 2650 2    60   ~ 0
PA3
Text Label 9050 3050 2    60   ~ 0
PA7
Text Label 9050 2950 2    60   ~ 0
PA6
Text Label 9050 2850 2    60   ~ 0
PA5
Text Label 9050 2750 2    60   ~ 0
PA4
Text Label 10050 2350 0    60   ~ 0
PA8
Text Label 10050 2450 0    60   ~ 0
PA9
Text Label 10050 2550 0    60   ~ 0
PA10
Text Label 10050 2850 0    60   ~ 0
PA13
Text Label 10050 2950 0    60   ~ 0
PA14
Text Label 10050 3050 0    60   ~ 0
PA15
Text Label 5200 2850 2    60   ~ 0
PC8
Text Label 5200 2950 2    60   ~ 0
PC9
Text Label 5200 3050 2    60   ~ 0
PC10
Text Label 5200 3150 2    60   ~ 0
PC11
Text Label 5200 3550 2    60   ~ 0
PC15
Text Label 5200 3450 2    60   ~ 0
PC14
Text Label 5200 3350 2    60   ~ 0
PC13
Text Label 5200 3250 2    60   ~ 0
PC12
Text Label 5200 2450 2    60   ~ 0
PC4
Text Label 5200 2550 2    60   ~ 0
PC5
Text Label 5200 2650 2    60   ~ 0
PC6
Text Label 5200 2750 2    60   ~ 0
PC7
Text Label 5200 2350 2    60   ~ 0
PC3
Text Label 5200 2250 2    60   ~ 0
PC2
Text Label 5200 2150 2    60   ~ 0
PC1
Text Label 5200 2050 2    60   ~ 0
PC0
Text Label 8250 5000 0    60   ~ 0
PB11
Text Label 8250 5100 0    60   ~ 0
PB12
Text Label 8250 3900 0    60   ~ 0
PB0
Text Label 8250 4000 0    60   ~ 0
PB1
Text Label 8250 4100 0    60   ~ 0
PB2
Text Label 8250 4200 0    60   ~ 0
PB3
Text Label 8250 4600 0    60   ~ 0
PB7
Text Label 8250 4500 0    60   ~ 0
PB6
Text Label 8250 4400 0    60   ~ 0
PB5
Text Label 8250 4300 0    60   ~ 0
PB4
Text Label 8250 4700 0    60   ~ 0
PB8
Text Label 8250 4800 0    60   ~ 0
PB9
Text Label 8250 4900 0    60   ~ 0
PA10
Text Label 8250 5200 0    60   ~ 0
PA13
Text Label 8250 5300 0    60   ~ 0
PA14
Text Label 8250 5400 0    60   ~ 0
PA15
Text Label 8250 3550 0    60   ~ 0
PA15
Text Label 8250 3450 0    60   ~ 0
PA14
Text Label 8250 3350 0    60   ~ 0
PA13
Text Label 8250 3050 0    60   ~ 0
PA10
Text Label 8250 2950 0    60   ~ 0
PA9
Text Label 8250 2850 0    60   ~ 0
PA8
Text Label 8250 2450 0    60   ~ 0
PA4
Text Label 8250 2550 0    60   ~ 0
PA5
Text Label 8250 2650 0    60   ~ 0
PA6
Text Label 8250 2750 0    60   ~ 0
PA7
Text Label 8250 2350 0    60   ~ 0
PA3
Text Label 8250 2250 0    60   ~ 0
PA2
Text Label 8250 2150 0    60   ~ 0
PA1
Text Label 8250 2050 0    60   ~ 0
PA0
$Comp
L GND #PWR020
U 1 1 51B75E66
P 2150 4550
F 0 "#PWR020" H 2150 4550 30  0001 C CNN
F 1 "GND" H 2150 4480 30  0001 C CNN
	1    2150 4550
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR021
U 1 1 51B75E5A
P 2150 4250
F 0 "#PWR021" H 2150 4340 20  0001 C CNN
F 1 "+5V" H 2150 4340 30  0000 C CNN
	1    2150 4250
	1    0    0    -1  
$EndComp
$Comp
L CONN_2 P5
U 1 1 51B75E54
P 1750 4400
F 0 "P5" V 1700 4400 40  0000 C CNN
F 1 "USB_PWR" V 1800 4400 40  0000 C CNN
	1    1750 4400
	-1   0    0    -1  
$EndComp
$Comp
L +5V #PWR022
U 1 1 51B75DA4
P 2000 1200
F 0 "#PWR022" H 2000 1290 20  0001 C CNN
F 1 "+5V" H 2000 1290 30  0000 C CNN
	1    2000 1200
	1    0    0    -1  
$EndComp
$Comp
L CONN_10X2 P6
U 1 1 51B75443
P 9550 4650
F 0 "P6" H 9550 5200 60  0000 C CNN
F 1 "PB" V 9550 4650 50  0000 C CNN
	1    9550 4650
	1    0    0    -1  
$EndComp
$Comp
L CONN_10X2 P2
U 1 1 51B7543F
P 9550 2700
F 0 "P2" H 9550 3250 60  0000 C CNN
F 1 "PA" V 9550 2700 50  0000 C CNN
	1    9550 2700
	1    0    0    -1  
$EndComp
$Comp
L CONN_10X2 P3
U 1 1 51B75430
P 3700 2850
F 0 "P3" H 3700 3400 60  0000 C CNN
F 1 "PC" V 3700 2850 50  0000 C CNN
	1    3700 2850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR023
U 1 1 51B75346
P 6450 5800
F 0 "#PWR023" H 6450 5800 30  0001 C CNN
F 1 "GND" H 6450 5730 30  0001 C CNN
	1    6450 5800
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR024
U 1 1 51B75338
P 6350 1200
F 0 "#PWR024" H 6350 1300 30  0001 C CNN
F 1 "VCC" H 6350 1300 30  0000 C CNN
	1    6350 1200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR025
U 1 1 51B752F4
P 5500 1400
F 0 "#PWR025" H 5500 1400 30  0001 C CNN
F 1 "GND" H 5500 1330 30  0001 C CNN
	1    5500 1400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR026
U 1 1 51B752F1
P 4600 1400
F 0 "#PWR026" H 4600 1400 30  0001 C CNN
F 1 "GND" H 4600 1330 30  0001 C CNN
	1    4600 1400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR027
U 1 1 51B752E8
P 4350 1850
F 0 "#PWR027" H 4350 1850 30  0001 C CNN
F 1 "GND" H 4350 1780 30  0001 C CNN
	1    4350 1850
	1    0    0    -1  
$EndComp
$Comp
L CONN_2X2 P1
U 1 1 51B752D5
P 5050 1300
F 0 "P1" H 5050 1450 50  0000 C CNN
F 1 "INT_PWR" H 5060 1170 40  0000 C CNN
	1    5050 1300
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR028
U 1 1 51B752B9
P 2000 1750
F 0 "#PWR028" H 2000 1750 30  0001 C CNN
F 1 "GND" H 2000 1680 30  0001 C CNN
	1    2000 1750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR029
U 1 1 51B752B1
P 4050 1850
F 0 "#PWR029" H 4050 1850 30  0001 C CNN
F 1 "GND" H 4050 1780 30  0001 C CNN
	1    4050 1850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR030
U 1 1 51B752AE
P 2900 1750
F 0 "#PWR030" H 2900 1750 30  0001 C CNN
F 1 "GND" H 2900 1680 30  0001 C CNN
	1    2900 1750
	1    0    0    -1  
$EndComp
$Comp
L LTC1844 U1
U 1 1 51B7527F
P 2900 1400
F 0 "U1" H 2900 1650 60  0000 C CNN
F 1 "LTC1844" H 2900 1450 60  0000 C CNN
	1    2900 1400
	1    0    0    -1  
$EndComp
$Comp
L POT RV1
U 1 1 51B7526E
P 4050 1550
F 0 "RV1" H 4050 1450 50  0000 C CNN
F 1 "1M0" H 4050 1550 50  0000 C CNN
	1    4050 1550
	0    -1   -1   0   
$EndComp
$Comp
L C C2
U 1 1 51B75266
P 3650 1500
F 0 "C2" H 3650 1600 50  0000 L CNN
F 1 "1nF" H 3650 1400 50  0000 L CNN
	1    3650 1500
	1    0    0    -1  
$EndComp
$Comp
L CP1 C7
U 1 1 51B75262
P 4350 1550
F 0 "C7" H 4400 1650 50  0000 L CNN
F 1 "1µF" H 4400 1450 50  0000 L CNN
	1    4350 1550
	1    0    0    -1  
$EndComp
$Comp
L CP1 C1
U 1 1 51B7525E
P 2000 1500
F 0 "C1" H 2050 1600 50  0000 L CNN
F 1 "1µF" H 2050 1400 50  0000 L CNN
	1    2000 1500
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR031
U 1 1 51B66C94
P 1750 5800
F 0 "#PWR031" H 1750 5890 20  0001 C CNN
F 1 "+5V" H 1750 5890 30  0000 C CNN
	1    1750 5800
	0    -1   -1   0   
$EndComp
$Comp
L GND #PWR032
U 1 1 51B66C8B
P 2600 6100
F 0 "#PWR032" H 2600 6100 30  0001 C CNN
F 1 "GND" H 2600 6030 30  0001 C CNN
	1    2600 6100
	1    0    0    -1  
$EndComp
$Comp
L +5V #PWR033
U 1 1 51B66C4E
P 3150 4150
F 0 "#PWR033" H 3150 4240 20  0001 C CNN
F 1 "+5V" H 3150 4240 30  0000 C CNN
	1    3150 4150
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR034
U 1 1 51B66C41
P 2500 4150
F 0 "#PWR034" H 2500 4250 30  0001 C CNN
F 1 "VCC" H 2500 4250 30  0000 C CNN
	1    2500 4150
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR035
U 1 1 51B66C3D
P 3550 4150
F 0 "#PWR035" H 3550 4250 30  0001 C CNN
F 1 "VCC" H 3550 4250 30  0000 C CNN
	1    3550 4150
	1    0    0    -1  
$EndComp
Text Label 1900 5050 2    60   ~ 0
USB_DISC
$Comp
L GND #PWR036
U 1 1 51B66BED
P 3150 5450
F 0 "#PWR036" H 3150 5450 30  0001 C CNN
F 1 "GND" H 3150 5380 30  0001 C CNN
	1    3150 5450
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR037
U 1 1 51B66BEC
P 2950 5450
F 0 "#PWR037" H 2950 5450 30  0001 C CNN
F 1 "GND" H 2950 5380 30  0001 C CNN
	1    2950 5450
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR038
U 1 1 51B66B9A
P 3250 6450
F 0 "#PWR038" H 3250 6450 30  0001 C CNN
F 1 "GND" H 3250 6380 30  0001 C CNN
	1    3250 6450
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR039
U 1 1 51B66B97
P 3550 6450
F 0 "#PWR039" H 3550 6450 30  0001 C CNN
F 1 "GND" H 3550 6380 30  0001 C CNN
	1    3550 6450
	1    0    0    -1  
$EndComp
$Comp
L C C12
U 1 1 51B66B6B
P 3550 6200
F 0 "C12" H 3600 6300 50  0000 L CNN
F 1 "33pF" H 3600 6100 50  0000 L CNN
	1    3550 6200
	1    0    0    -1  
$EndComp
$Comp
L C C11
U 1 1 51B66B63
P 3250 6200
F 0 "C11" H 3300 6300 50  0000 L CNN
F 1 "33pF" H 3300 6100 50  0000 L CNN
	1    3250 6200
	1    0    0    -1  
$EndComp
$Comp
L R R9
U 1 1 51B66B53
P 2900 5950
F 0 "R9" V 2980 5950 50  0000 C CNN
F 1 "22R" V 2900 5950 50  0000 C CNN
	1    2900 5950
	0    -1   -1   0   
$EndComp
$Comp
L R R8
U 1 1 51B66B45
P 2900 5800
F 0 "R8" V 2980 5800 50  0000 C CNN
F 1 "22R" V 2900 5800 50  0000 C CNN
	1    2900 5800
	0    -1   -1   0   
$EndComp
$Comp
L R R7
U 1 1 51B66AFA
P 3550 5450
F 0 "R7" V 3630 5450 50  0000 C CNN
F 1 "1k5" V 3550 5450 50  0000 C CNN
	1    3550 5450
	1    0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 51B66AF7
P 3150 5150
F 0 "R4" V 3230 5150 50  0000 C CNN
F 1 "36k" V 3150 5150 50  0000 C CNN
	1    3150 5150
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 51B66AF4
P 3150 4450
F 0 "R2" V 3230 4450 50  0000 C CNN
F 1 "10k" V 3150 4450 50  0000 C CNN
	1    3150 4450
	1    0    0    -1  
$EndComp
$Comp
L R R1
U 1 1 51B66AEF
P 2500 4450
F 0 "R1" V 2580 4450 50  0000 C CNN
F 1 "47k" V 2500 4450 50  0000 C CNN
	1    2500 4450
	1    0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 51B66AEB
P 2200 5050
F 0 "R3" V 2280 5050 50  0000 C CNN
F 1 "1k0" V 2200 5050 50  0000 C CNN
	1    2200 5050
	0    -1   -1   0   
$EndComp
Text Label 3750 5800 0    60   ~ 0
USB_DP
Text Label 3750 5950 0    60   ~ 0
USB_DM
$Comp
L USB J1
U 1 1 51B66A14
P 2200 5600
F 0 "J1" H 2450 5750 60  0000 C CNN
F 1 "USB" V 1950 5750 60  0000 C CNN
	1    2200 5600
	1    0    0    -1  
$EndComp
$Comp
L BC817-40 Q1
U 1 1 51B66A08
P 3450 4800
F 0 "Q1" H 3450 4651 40  0000 R CNN
F 1 "BC817-40" V 3700 4950 40  0000 R CNN
	1    3450 4800
	1    0    0    -1  
$EndComp
$Comp
L BC817-40 Q2
U 1 1 51B66A03
P 2850 5050
F 0 "Q2" H 2850 4901 40  0000 R CNN
F 1 "BC817-40" H 2850 5200 40  0000 R CNN
	1    2850 5050
	1    0    0    -1  
$EndComp
$Comp
L C C10
U 1 1 51B66965
P 4850 4650
F 0 "C10" V 4750 4750 50  0000 L CNN
F 1 "22pF" V 4750 4400 50  0000 L CNN
	1    4850 4650
	0    1    1    0   
$EndComp
$Comp
L GND #PWR040
U 1 1 51B66964
P 4550 4650
F 0 "#PWR040" H 4550 4650 30  0001 C CNN
F 1 "GND" H 4550 4580 30  0001 C CNN
	1    4550 4650
	0    1    1    0   
$EndComp
Text Label 8250 3250 0    60   ~ 0
USB_DP
Text Label 8250 3150 0    60   ~ 0
USB_DM
$Comp
L GND #PWR041
U 1 1 51B668A7
P 4550 4050
F 0 "#PWR041" H 4550 4050 30  0001 C CNN
F 1 "GND" H 4550 3980 30  0001 C CNN
	1    4550 4050
	0    1    1    0   
$EndComp
$Comp
L GND #PWR042
U 1 1 51B668A2
P 5200 6100
F 0 "#PWR042" H 5200 6100 30  0001 C CNN
F 1 "GND" H 5200 6030 30  0001 C CNN
	1    5200 6100
	1    0    0    -1  
$EndComp
$Comp
L VCC #PWR043
U 1 1 51B66895
P 4550 5450
F 0 "#PWR043" H 4550 5550 30  0001 C CNN
F 1 "VCC" H 4550 5550 30  0000 C CNN
	1    4550 5450
	-1   0    0    1   
$EndComp
$Comp
L R R6
U 1 1 51B66888
P 4850 5400
F 0 "R6" V 4930 5400 50  0000 C CNN
F 1 "10k" V 4850 5400 50  0000 C CNN
	1    4850 5400
	0    -1   -1   0   
$EndComp
$Comp
L SW_PUSH SW1
U 1 1 51B66880
P 5200 5750
F 0 "SW1" H 5350 5860 50  0000 C CNN
F 1 "SW_PUSH" H 5200 5670 50  0000 C CNN
	1    5200 5750
	0    -1   -1   0   
$EndComp
Text Label 5200 4900 2    60   ~ 0
USB_DISC
$Comp
L C C9
U 1 1 51B667D0
P 4850 4050
F 0 "C9" V 4750 4150 50  0000 L CNN
F 1 "22pF" V 4750 3800 50  0000 L CNN
	1    4850 4050
	0    1    1    0   
$EndComp
$Comp
L CRYSTAL X1
U 1 1 51B6679B
P 5200 4350
F 0 "X1" H 5200 4500 60  0000 C CNN
F 1 "8 MHz" V 5200 4100 60  0000 C CNN
	1    5200 4350
	0    1    1    0   
$EndComp
$Comp
L GND #PWR044
U 1 1 51B66778
P 7750 1750
F 0 "#PWR044" H 7750 1750 30  0001 C CNN
F 1 "GND" H 7750 1680 30  0001 C CNN
	1    7750 1750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR045
U 1 1 51B66776
P 7450 1750
F 0 "#PWR045" H 7450 1750 30  0001 C CNN
F 1 "GND" H 7450 1680 30  0001 C CNN
	1    7450 1750
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR046
U 1 1 51B66770
P 7150 1750
F 0 "#PWR046" H 7150 1750 30  0001 C CNN
F 1 "GND" H 7150 1680 30  0001 C CNN
	1    7150 1750
	1    0    0    -1  
$EndComp
$Comp
L C C3
U 1 1 51B666EA
P 6000 1500
F 0 "C3" H 6050 1600 50  0000 L CNN
F 1 "100nF" H 6050 1400 50  0000 L CNN
	1    6000 1500
	1    0    0    -1  
$EndComp
$Comp
L C C4
U 1 1 51B666E2
P 7150 1500
F 0 "C4" H 7200 1600 50  0000 L CNN
F 1 "100nF" H 7200 1400 50  0000 L CNN
	1    7150 1500
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR047
U 1 1 51B66330
P 6900 5800
F 0 "#PWR047" H 6900 5800 30  0001 C CNN
F 1 "GND" H 6900 5730 30  0001 C CNN
	1    6900 5800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR048
U 1 1 51B6632F
P 6800 5800
F 0 "#PWR048" H 6800 5800 30  0001 C CNN
F 1 "GND" H 6800 5730 30  0001 C CNN
	1    6800 5800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR049
U 1 1 51B6632E
P 6700 5800
F 0 "#PWR049" H 6700 5800 30  0001 C CNN
F 1 "GND" H 6700 5730 30  0001 C CNN
	1    6700 5800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR050
U 1 1 51B66329
P 6600 5800
F 0 "#PWR050" H 6600 5800 30  0001 C CNN
F 1 "GND" H 6600 5730 30  0001 C CNN
	1    6600 5800
	1    0    0    -1  
$EndComp
$Comp
L STM32F103RETx IC1
U 1 1 51B66308
P 6700 3700
F 0 "IC1" H 6700 3650 60  0000 C CNN
F 1 "STM32F103RETx" H 6700 3750 60  0001 C CNN
	1    6700 3700
	1    0    0    -1  
$EndComp
$EndSCHEMATC