EESchema Schematic File Version 2  date Sat Nov  6 03:04:04 2010
LIBS:power
LIBS:device
LIBS:conn
LIBS:c8051f320
LIBS:mini_usb_b
LIBS:usb_a_plug
EELAYER 24  0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title "Arbitrary-precision Counter (3 MHz)"
Date "6 nov 2010"
Rev "3"
Comp "Werner Almesberger"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	8600 4000 8600 3650
Wire Wire Line
	8600 3650 8400 3650
Connection ~ 9900 1800
Wire Wire Line
	9900 1500 10100 1500
Wire Wire Line
	9900 2000 9900 1500
Wire Wire Line
	10100 1650 8700 1650
Wire Wire Line
	9200 1650 9200 2050
Wire Wire Line
	8900 2550 8900 2750
Wire Wire Line
	8900 2750 8400 2750
Connection ~ 7550 1650
Wire Wire Line
	7400 1850 7400 1650
Wire Wire Line
	3400 4700 3400 4900
Wire Wire Line
	4300 4200 4300 3500
Wire Wire Line
	5600 3200 4050 3200
Wire Wire Line
	9100 5700 9100 5900
Wire Wire Line
	7550 5950 7550 6150
Connection ~ 4700 3650
Wire Wire Line
	4700 4200 4700 3650
Connection ~ 3700 3650
Wire Wire Line
	5600 3050 5400 3050
Wire Wire Line
	5050 6200 5050 5550
Wire Wire Line
	5050 5550 5250 5550
Wire Wire Line
	5250 5550 5250 6200
Wire Wire Line
	6500 6200 6500 4650
Wire Wire Line
	3700 4700 3700 4900
Wire Wire Line
	3100 4700 3100 4900
Connection ~ 3400 3200
Wire Wire Line
	3400 4200 3400 3200
Wire Wire Line
	4300 4600 4300 4800
Wire Wire Line
	4300 3500 5600 3500
Wire Wire Line
	900  3050 1100 3050
Wire Wire Line
	1100 3500 900  3500
Connection ~ 900  3500
Wire Wire Line
	900  3700 900  3050
Wire Wire Line
	2250 3500 2450 3500
Wire Wire Line
	2450 3500 2450 3700
Wire Wire Line
	2250 3200 3900 3200
Wire Wire Line
	4700 4600 4700 4800
Wire Wire Line
	3100 4200 3100 3350
Connection ~ 3100 3350
Wire Wire Line
	6650 4650 6650 6200
Wire Wire Line
	5600 3350 4050 3350
Wire Wire Line
	4050 3350 3900 3200
Wire Wire Line
	2250 3350 3900 3350
Wire Wire Line
	3900 3350 4050 3200
Wire Wire Line
	3700 4200 3700 3050
Wire Wire Line
	5600 3800 5400 3800
Connection ~ 5400 3650
Wire Wire Line
	5400 3650 5400 6200
Connection ~ 5400 3800
Wire Wire Line
	7550 5350 7550 5550
Wire Wire Line
	3700 3650 5600 3650
Wire Wire Line
	9200 2750 9200 2550
Wire Wire Line
	3700 3050 2250 3050
Wire Wire Line
	7550 4650 7550 4850
Wire Wire Line
	7550 1650 7550 1850
Wire Wire Line
	7250 1650 7250 1850
Wire Wire Line
	8200 1650 7250 1650
Connection ~ 7400 1650
Wire Wire Line
	8900 1650 8900 2050
Connection ~ 8900 1650
Connection ~ 9200 1650
Wire Wire Line
	9900 1800 10100 1800
$Comp
L GND #PWR01
U 1 1 4CD4E155
P 8600 4000
F 0 "#PWR01" H 8600 4000 30  0001 C CNN
F 1 "GND" H 8600 3930 30  0001 C CNN
	1    8600 4000
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P7
U 1 1 4CD4DF74
P 10250 1800
F 0 "P7" H 10330 1800 40  0000 L CNN
F 1 "CONN_1" H 10250 1855 30  0001 C CNN
F 2 "PAD_120x60" H 10250 1800 60  0001 C CNN
	1    10250 1800
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P6
U 1 1 4CD4DF72
P 10250 1650
F 0 "P6" H 10330 1650 40  0000 L CNN
F 1 "CONN_1" H 10250 1705 30  0001 C CNN
F 2 "PAD_120x60" H 10250 1650 60  0001 C CNN
	1    10250 1650
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P5
U 1 1 4CD4DF6F
P 10250 1500
F 0 "P5" H 10330 1500 40  0000 L CNN
F 1 "CONN_1" H 10250 1555 30  0001 C CNN
F 2 "PAD_120x60" H 10250 1500 60  0001 C CNN
	1    10250 1500
	1    0    0    -1  
$EndComp
NoConn ~ 8400 3800
NoConn ~ 8400 2900
NoConn ~ 8400 3350
$Comp
L GND #PWR02
U 1 1 4CC53309
P 9900 2000
F 0 "#PWR02" H 9900 2000 30  0001 C CNN
F 1 "GND" H 9900 1930 30  0001 C CNN
	1    9900 2000
	1    0    0    -1  
$EndComp
$Comp
L R R2
U 1 1 4CC5326F
P 8900 2300
F 0 "R2" V 8980 2300 50  0000 C CNN
F 1 "330" V 8900 2300 50  0000 C CNN
F 2 "0603" H 8900 2300 60  0001 C CNN
	1    8900 2300
	-1   0    0    1   
$EndComp
$Comp
L USB_A_PLUG~ CON1
U 1 1 4CC53108
P 1650 3300
F 0 "CON1" H 1400 3750 60  0000 C CNN
F 1 "USB_A_PLUG " H 1650 2900 60  0000 C CNN
F 2 "USB_A_PLUG_SMT" H 1650 3300 60  0001 C CNN
	1    1650 3300
	-1   0    0    -1  
$EndComp
$Comp
L GND #PWR03
U 1 1 4C71BAB2
P 9200 2750
F 0 "#PWR03" H 9200 2750 30  0001 C CNN
F 1 "GND" H 9200 2680 30  0001 C CNN
	1    9200 2750
	1    0    0    -1  
$EndComp
$Comp
L VR VR4
U 1 1 4C71BA9B
P 9200 2300
F 0 "VR4" V 9280 2300 50  0000 C CNN
F 1 "5V6" V 9200 2300 50  0000 C CNN
F 2 "0402" H 9200 2300 60  0001 C CNN
	1    9200 2300
	-1   0    0    -1  
$EndComp
$Comp
L GND #PWR04
U 1 1 4C71B2DD
P 9100 5900
F 0 "#PWR04" H 9100 5900 30  0001 C CNN
F 1 "GND" H 9100 5830 30  0001 C CNN
	1    9100 5900
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG05
U 1 1 4C71B2DB
P 9100 5700
F 0 "#FLG05" H 9100 5970 30  0001 C CNN
F 1 "PWR_FLAG" H 9100 5930 30  0000 C CNN
	1    9100 5700
	1    0    0    -1  
$EndComp
Text Label 9400 1650 0    60   ~ 0
PROBE
NoConn ~ 6800 4650
NoConn ~ 6950 4650
NoConn ~ 7100 4650
NoConn ~ 7250 4650
NoConn ~ 7400 4650
NoConn ~ 8400 3500
NoConn ~ 8400 3200
NoConn ~ 8400 3050
NoConn ~ 5600 2900
$Comp
L R R1
U 1 1 4C71B06B
P 8450 1650
F 0 "R1" V 8530 1650 50  0000 C CNN
F 1 "1k" V 8450 1650 50  0000 C CNN
F 2 "0603" H 8450 1650 60  0001 C CNN
	1    8450 1650
	0    -1   -1   0   
$EndComp
NoConn ~ 7100 1850
NoConn ~ 6500 1850
NoConn ~ 6650 1850
NoConn ~ 6800 1850
NoConn ~ 6950 1850
NoConn ~ 5600 2750
$Comp
L C8051F320 U1
U 1 1 4C71AEC6
P 7000 3250
F 0 "U1" H 6000 4450 60  0000 C CNN
F 1 "C8051F320" H 7000 3250 60  0000 C CNN
F 2 "LQFP32" H 7000 3250 60  0001 C CNN
	1    7000 3250
	1    0    0    -1  
$EndComp
Text Label 2450 3350 0    60   ~ 0
D+
Text Label 2450 3200 0    60   ~ 0
D-
$Comp
L GND #PWR06
U 1 1 4C6408C7
P 4300 4800
F 0 "#PWR06" H 4300 4800 30  0001 C CNN
F 1 "GND" H 4300 4730 30  0001 C CNN
	1    4300 4800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR07
U 1 1 4C6408C5
P 4700 4800
F 0 "#PWR07" H 4700 4800 30  0001 C CNN
F 1 "GND" H 4700 4730 30  0001 C CNN
	1    4700 4800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 4C6408BA
P 5400 3050
F 0 "#PWR08" H 5400 3050 30  0001 C CNN
F 1 "GND" H 5400 2980 30  0001 C CNN
	1    5400 3050
	0    1    1    0   
$EndComp
$Comp
L GND #PWR09
U 1 1 4C6408AD
P 7550 6150
F 0 "#PWR09" H 7550 6150 30  0001 C CNN
F 1 "GND" H 7550 6080 30  0001 C CNN
	1    7550 6150
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 4C6408A3
P 5050 6200
F 0 "#PWR010" H 5050 6200 30  0001 C CNN
F 1 "GND" H 5050 6130 30  0001 C CNN
	1    5050 6200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR011
U 1 1 4C64089F
P 2450 3700
F 0 "#PWR011" H 2450 3700 30  0001 C CNN
F 1 "GND" H 2450 3630 30  0001 C CNN
	1    2450 3700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4C640899
P 900 3700
F 0 "#PWR012" H 900 3700 30  0001 C CNN
F 1 "GND" H 900 3630 30  0001 C CNN
	1    900  3700
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 4C640896
P 3700 4900
F 0 "#PWR013" H 3700 4900 30  0001 C CNN
F 1 "GND" H 3700 4830 30  0001 C CNN
	1    3700 4900
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 4C64088F
P 3400 4900
F 0 "#PWR014" H 3400 4900 30  0001 C CNN
F 1 "GND" H 3400 4830 30  0001 C CNN
	1    3400 4900
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR015
U 1 1 4C64088A
P 3100 4900
F 0 "#PWR015" H 3100 4900 30  0001 C CNN
F 1 "GND" H 3100 4830 30  0001 C CNN
	1    3100 4900
	1    0    0    -1  
$EndComp
Text Label 5250 6000 1    60   ~ 0
GND
Text Label 6650 6000 1    60   ~ 0
C2D
Text Label 5400 6000 1    60   ~ 0
VBUS
Text Label 6500 6000 1    60   ~ 0
C2CK
$Comp
L VR VR3
U 1 1 4C64034D
P 3700 4450
F 0 "VR3" V 3780 4450 50  0000 C CNN
F 1 "5V6" V 3700 4450 50  0000 C CNN
F 2 "0402" H 3700 4450 60  0001 C CNN
	1    3700 4450
	-1   0    0    -1  
$EndComp
$Comp
L VR VR2
U 1 1 4C640343
P 3400 4450
F 0 "VR2" V 3480 4450 50  0000 C CNN
F 1 "5V6" V 3400 4450 50  0000 C CNN
F 2 "0402" H 3400 4450 60  0001 C CNN
	1    3400 4450
	-1   0    0    -1  
$EndComp
$Comp
L VR VR1
U 1 1 4C6402FB
P 3100 4450
F 0 "VR1" V 3180 4450 50  0000 C CNN
F 1 "5V6" V 3100 4450 50  0000 C CNN
F 2 "0402" H 3100 4450 60  0001 C CNN
	1    3100 4450
	-1   0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 4C6402F2
P 7550 5100
F 0 "R3" V 7630 5100 50  0000 C CNN
F 1 "68" V 7550 5100 50  0000 C CNN
F 2 "0603" H 7550 5100 60  0001 C CNN
	1    7550 5100
	-1   0    0    -1  
$EndComp
$Comp
L LED D1
U 1 1 4C6402EE
P 7550 5750
F 0 "D1" H 7550 5850 50  0000 C CNN
F 1 "LTST-C190KRKT" H 7550 5650 50  0000 C CNN
F 2 "0603" H 7550 5750 60  0001 C CNN
	1    7550 5750
	0    -1   1    0   
$EndComp
$Comp
L CONN_1 P1
U 1 1 4C640203
P 5250 6350
F 0 "P1" H 5330 6350 40  0000 L CNN
F 1 "CONN_1" H 5250 6405 30  0001 C CNN
F 2 "PAD_120x60" H 5250 6350 60  0001 C CNN
	1    5250 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P4
U 1 1 4C640202
P 6650 6350
F 0 "P4" H 6730 6350 40  0000 L CNN
F 1 "CONN_1" H 6650 6405 30  0001 C CNN
F 2 "PAD_120x60" H 6650 6350 60  0001 C CNN
	1    6650 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P3
U 1 1 4C640200
P 6500 6350
F 0 "P3" H 6580 6350 40  0000 L CNN
F 1 "CONN_1" H 6500 6405 30  0001 C CNN
F 2 "PAD_120x60" H 6500 6350 60  0001 C CNN
	1    6500 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P2
U 1 1 4C6401FE
P 5400 6350
F 0 "P2" H 5480 6350 40  0000 L CNN
F 1 "CONN_1" H 5400 6405 30  0001 C CNN
F 2 "PAD_120x60" H 5400 6350 60  0001 C CNN
	1    5400 6350
	0    1    1    0   
$EndComp
$Comp
L C C1
U 1 1 4C6401B3
P 4300 4400
F 0 "C1" H 4350 4500 50  0000 L CNN
F 1 "100nF" H 4350 4300 50  0000 L CNN
F 2 "0603" H 4300 4400 60  0001 C CNN
	1    4300 4400
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 4C6401AA
P 4700 4400
F 0 "C2" H 4750 4500 50  0000 L CNN
F 1 "1uF" H 4750 4300 50  0000 L CNN
F 2 "0603" H 4700 4400 60  0001 C CNN
	1    4700 4400
	1    0    0    -1  
$EndComp
$EndSCHEMATC