EESchema Schematic File Version 2  date Wed Aug 25 19:36:56 2010
LIBS:power
LIBS:device
LIBS:conn
LIBS:c8051f320
LIBS:mini_usb_b
LIBS:cntr-cache
EELAYER 24  0
EELAYER END
$Descr A4 11700 8267
Sheet 1 1
Title "Arbitrary-precision Counter (3 MHz)"
Date "25 aug 2010"
Rev "1"
Comp "Werner Almesberger"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	8850 4000 8850 3800
Wire Wire Line
	8850 3800 8650 3800
Connection ~ 9450 1650
Wire Wire Line
	9450 1650 9450 1850
Wire Wire Line
	3700 3050 3950 3050
Wire Wire Line
	5850 3200 5000 3200
Wire Wire Line
	9100 5700 9100 5900
Wire Wire Line
	9200 4200 9200 4400
Wire Wire Line
	9200 3100 9200 2900
Wire Wire Line
	9200 2900 8650 2900
Wire Wire Line
	9100 1850 9100 1650
Connection ~ 7800 1650
Wire Wire Line
	7800 1650 7800 1850
Wire Wire Line
	7650 1850 7650 1650
Wire Wire Line
	7500 1850 7500 1650
Connection ~ 4950 3650
Wire Wire Line
	4950 4200 4950 3650
Connection ~ 3950 3650
Wire Wire Line
	5850 3050 5650 3050
Wire Wire Line
	5300 6200 5300 5550
Wire Wire Line
	5300 5550 5500 5550
Wire Wire Line
	5500 5550 5500 6200
Wire Wire Line
	6750 6200 6750 4650
Wire Wire Line
	3950 4700 3950 4900
Wire Wire Line
	3350 4700 3350 4900
Connection ~ 3650 3200
Wire Wire Line
	3650 4200 3650 3200
Wire Wire Line
	4550 4600 4550 4800
Wire Wire Line
	5850 3500 4550 3500
Wire Wire Line
	2500 3500 2700 3500
Connection ~ 1150 3200
Wire Wire Line
	1350 3200 1150 3200
Wire Wire Line
	1150 3650 1350 3650
Wire Wire Line
	1350 3050 1150 3050
Wire Wire Line
	1150 3500 1350 3500
Connection ~ 1150 3500
Wire Wire Line
	1150 3050 1150 3850
Connection ~ 1150 3650
Wire Wire Line
	2500 3650 2700 3650
Wire Wire Line
	2700 3650 2700 3850
Wire Wire Line
	2500 3200 4150 3200
Wire Wire Line
	4950 4600 4950 4800
Wire Wire Line
	3350 4200 3350 3350
Connection ~ 3350 3350
Wire Wire Line
	3650 4700 3650 4900
Wire Wire Line
	6900 4650 6900 6200
Wire Wire Line
	5850 3350 4300 3350
Wire Wire Line
	4300 3350 4150 3200
Wire Wire Line
	2500 3350 4150 3350
Wire Wire Line
	4150 3350 4300 3200
Wire Wire Line
	3950 3050 3950 4200
Wire Wire Line
	4550 3500 4550 4200
Wire Wire Line
	5850 3800 5650 3800
Connection ~ 5650 3650
Wire Wire Line
	5650 3650 5650 6200
Connection ~ 5650 3800
Wire Wire Line
	7500 1650 8400 1650
Connection ~ 7650 1650
Wire Wire Line
	9100 2350 9100 2750
Wire Wire Line
	9100 2750 8650 2750
Wire Wire Line
	8900 1650 10250 1650
Connection ~ 9100 1650
Wire Wire Line
	9200 3600 9200 3800
Wire Wire Line
	10050 2050 10050 1850
Wire Wire Line
	10050 1850 10250 1850
Wire Wire Line
	4300 3200 4500 3200
Wire Wire Line
	2500 3050 3200 3050
Wire Wire Line
	3950 3650 5850 3650
Wire Wire Line
	9450 2550 9450 2350
$Comp
L GND #PWR01
U 1 1 4C71BB6C
P 8850 4000
F 0 "#PWR01" H 8850 4000 30  0001 C CNN
F 1 "GND" H 8850 3930 30  0001 C CNN
	1    8850 4000
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR02
U 1 1 4C71BAB2
P 9450 2550
F 0 "#PWR02" H 9450 2550 30  0001 C CNN
F 1 "GND" H 9450 2480 30  0001 C CNN
	1    9450 2550
	1    0    0    -1  
$EndComp
$Comp
L VR VR4
U 1 1 4C71BA9B
P 9450 2100
F 0 "VR4" V 9530 2100 50  0000 C CNN
F 1 "5V6" V 9450 2100 50  0000 C CNN
F 2 "0603" H 9450 2100 60  0001 C CNN
	1    9450 2100
	-1   0    0    -1  
$EndComp
$Comp
L R R4
U 1 1 4C71B3DC
P 4750 3200
F 0 "R4" V 4830 3200 50  0000 C CNN
F 1 "0" V 4750 3200 50  0000 C CNN
F 2 "0603" H 4750 3200 60  0001 C CNN
	1    4750 3200
	0    1    -1   0   
$EndComp
$Comp
L R R5
U 1 1 4C71B3D9
P 3450 3050
F 0 "R5" V 3530 3050 50  0000 C CNN
F 1 "0" V 3450 3050 50  0000 C CNN
F 2 "0603" H 3450 3050 60  0001 C CNN
	1    3450 3050
	0    1    -1   0   
$EndComp
$Comp
L GND #PWR03
U 1 1 4C71B2DD
P 9100 5900
F 0 "#PWR03" 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 #FLG04
U 1 1 4C71B2DB
P 9100 5700
F 0 "#FLG04" 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 9750 1650 0    60   ~ 0
PROBE
$Comp
L GND #PWR05
U 1 1 4C71B1E2
P 10050 2050
F 0 "#PWR05" H 10050 2050 30  0001 C CNN
F 1 "GND" H 10050 1980 30  0001 C CNN
	1    10050 2050
	1    0    0    -1  
$EndComp
NoConn ~ 7050 4650
NoConn ~ 7200 4650
NoConn ~ 7350 4650
NoConn ~ 7500 4650
NoConn ~ 7650 4650
NoConn ~ 7800 4650
NoConn ~ 8650 3650
NoConn ~ 8650 3500
NoConn ~ 8650 3350
NoConn ~ 8650 3200
NoConn ~ 8650 3050
$Comp
L CONN_1 P6
U 1 1 4C71B116
P 10400 1850
F 0 "P6" H 10480 1850 40  0000 L CNN
F 1 "CONN_1" H 10400 1905 30  0001 C CNN
F 2 "PAD_120x60" H 10400 1850 60  0001 C CNN
	1    10400 1850
	1    0    0    -1  
$EndComp
$Comp
L CONN_1 P5
U 1 1 4C71B10C
P 10400 1650
F 0 "P5" H 10480 1650 40  0000 L CNN
F 1 "CONN_1" H 10400 1705 30  0001 C CNN
F 2 "PAD_120x60" H 10400 1650 60  0001 C CNN
	1    10400 1650
	1    0    0    -1  
$EndComp
NoConn ~ 5850 2900
$Comp
L R R2
U 1 1 4C71B08A
P 9100 2100
F 0 "R2" V 9180 2100 50  0000 C CNN
F 1 "100k" V 9100 2100 50  0000 C CNN
F 2 "0603" H 9100 2100 60  0001 C CNN
	1    9100 2100
	-1   0    0    1   
$EndComp
$Comp
L R R1
U 1 1 4C71B06B
P 8650 1650
F 0 "R1" V 8730 1650 50  0000 C CNN
F 1 "1k" V 8650 1650 50  0000 C CNN
F 2 "0603" H 8650 1650 60  0001 C CNN
	1    8650 1650
	0    -1   -1   0   
$EndComp
NoConn ~ 7350 1850
NoConn ~ 6750 1850
NoConn ~ 6900 1850
NoConn ~ 7050 1850
NoConn ~ 7200 1850
NoConn ~ 5850 2750
$Comp
L C8051F320 U1
U 1 1 4C71AEC6
P 7250 3250
F 0 "U1" H 6250 4450 60  0000 C CNN
F 1 "C8051F320" H 7250 3250 60  0000 C CNN
F 2 "LQFP32" H 7250 3250 60  0001 C CNN
	1    7250 3250
	1    0    0    -1  
$EndComp
Text Label 2700 3350 0    60   ~ 0
D+
Text Label 2700 3200 0    60   ~ 0
D-
$Comp
L GND #PWR06
U 1 1 4C6408C7
P 4550 4800
F 0 "#PWR06" H 4550 4800 30  0001 C CNN
F 1 "GND" H 4550 4730 30  0001 C CNN
	1    4550 4800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR07
U 1 1 4C6408C5
P 4950 4800
F 0 "#PWR07" H 4950 4800 30  0001 C CNN
F 1 "GND" H 4950 4730 30  0001 C CNN
	1    4950 4800
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR08
U 1 1 4C6408BA
P 5650 3050
F 0 "#PWR08" H 5650 3050 30  0001 C CNN
F 1 "GND" H 5650 2980 30  0001 C CNN
	1    5650 3050
	0    1    1    0   
$EndComp
$Comp
L GND #PWR09
U 1 1 4C6408AD
P 9200 4400
F 0 "#PWR09" H 9200 4400 30  0001 C CNN
F 1 "GND" H 9200 4330 30  0001 C CNN
	1    9200 4400
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR010
U 1 1 4C6408A3
P 5300 6200
F 0 "#PWR010" H 5300 6200 30  0001 C CNN
F 1 "GND" H 5300 6130 30  0001 C CNN
	1    5300 6200
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR011
U 1 1 4C64089F
P 2700 3850
F 0 "#PWR011" H 2700 3850 30  0001 C CNN
F 1 "GND" H 2700 3780 30  0001 C CNN
	1    2700 3850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR012
U 1 1 4C640899
P 1150 3850
F 0 "#PWR012" H 1150 3850 30  0001 C CNN
F 1 "GND" H 1150 3780 30  0001 C CNN
	1    1150 3850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR013
U 1 1 4C640896
P 3950 4900
F 0 "#PWR013" H 3950 4900 30  0001 C CNN
F 1 "GND" H 3950 4830 30  0001 C CNN
	1    3950 4900
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR014
U 1 1 4C64088F
P 3650 4900
F 0 "#PWR014" H 3650 4900 30  0001 C CNN
F 1 "GND" H 3650 4830 30  0001 C CNN
	1    3650 4900
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR015
U 1 1 4C64088A
P 3350 4900
F 0 "#PWR015" H 3350 4900 30  0001 C CNN
F 1 "GND" H 3350 4830 30  0001 C CNN
	1    3350 4900
	1    0    0    -1  
$EndComp
Text Label 5500 6000 1    60   ~ 0
GND
Text Label 6900 6000 1    60   ~ 0
C2D
Text Label 5650 6000 1    60   ~ 0
VBUS
Text Label 6750 6000 1    60   ~ 0
C2CK
$Comp
L VR VR3
U 1 1 4C64034D
P 3950 4450
F 0 "VR3" V 4030 4450 50  0000 C CNN
F 1 "5V6" V 3950 4450 50  0000 C CNN
F 2 "0603" H 3950 4450 60  0001 C CNN
	1    3950 4450
	-1   0    0    -1  
$EndComp
$Comp
L VR VR2
U 1 1 4C640343
P 3650 4450
F 0 "VR2" V 3730 4450 50  0000 C CNN
F 1 "5V6" V 3650 4450 50  0000 C CNN
F 2 "0603" H 3650 4450 60  0001 C CNN
	1    3650 4450
	-1   0    0    -1  
$EndComp
$Comp
L VR VR1
U 1 1 4C6402FB
P 3350 4450
F 0 "VR1" V 3430 4450 50  0000 C CNN
F 1 "5V6" V 3350 4450 50  0000 C CNN
F 2 "0603" H 3350 4450 60  0001 C CNN
	1    3350 4450
	-1   0    0    -1  
$EndComp
$Comp
L R R3
U 1 1 4C6402F2
P 9200 3350
F 0 "R3" V 9280 3350 50  0000 C CNN
F 1 "68" V 9200 3350 50  0000 C CNN
F 2 "0603" H 9200 3350 60  0001 C CNN
	1    9200 3350
	-1   0    0    -1  
$EndComp
$Comp
L LED D1
U 1 1 4C6402EE
P 9200 4000
F 0 "D1" H 9200 4100 50  0000 C CNN
F 1 "LTST-C190KTKR" H 9200 3900 50  0000 C CNN
F 2 "0603" H 9200 4000 60  0001 C CNN
	1    9200 4000
	0    -1   1    0   
$EndComp
$Comp
L CONN_1 P1
U 1 1 4C640203
P 5500 6350
F 0 "P1" H 5580 6350 40  0000 L CNN
F 1 "CONN_1" H 5500 6405 30  0001 C CNN
F 2 "PAD_120x60" H 5500 6350 60  0001 C CNN
	1    5500 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P4
U 1 1 4C640202
P 6900 6350
F 0 "P4" H 6980 6350 40  0000 L CNN
F 1 "CONN_1" H 6900 6405 30  0001 C CNN
F 2 "PAD_120x60" H 6900 6350 60  0001 C CNN
	1    6900 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P3
U 1 1 4C640200
P 6750 6350
F 0 "P3" H 6830 6350 40  0000 L CNN
F 1 "CONN_1" H 6750 6405 30  0001 C CNN
F 2 "PAD_120x60" H 6750 6350 60  0001 C CNN
	1    6750 6350
	0    1    1    0   
$EndComp
$Comp
L CONN_1 P2
U 1 1 4C6401FE
P 5650 6350
F 0 "P2" H 5730 6350 40  0000 L CNN
F 1 "CONN_1" H 5650 6405 30  0001 C CNN
F 2 "PAD_120x60" H 5650 6350 60  0001 C CNN
	1    5650 6350
	0    1    1    0   
$EndComp
$Comp
L C C1
U 1 1 4C6401B3
P 4550 4400
F 0 "C1" H 4600 4500 50  0000 L CNN
F 1 "100nF" H 4600 4300 50  0000 L CNN
F 2 "0603" H 4550 4400 60  0001 C CNN
	1    4550 4400
	1    0    0    -1  
$EndComp
$Comp
L C C2
U 1 1 4C6401AA
P 4950 4400
F 0 "C2" H 5000 4500 50  0000 L CNN
F 1 "1uF" H 5000 4300 50  0000 L CNN
F 2 "0603" H 4950 4400 60  0001 C CNN
	1    4950 4400
	1    0    0    -1  
$EndComp
NoConn ~ 2700 3500
$Comp
L MINI_USB_B CON1
U 1 1 4C609C5C
P 1900 3350
F 0 "CON1" H 1900 3850 60  0000 C CNN
F 1 "MINI_USB_B" H 1900 2850 60  0000 C CNN
F 2 "miniUSB_B" H 1900 3350 60  0001 C CNN
	1    1900 3350
	-1   0    0    -1  
$EndComp
$EndSCHEMATC