EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:switches
LIBS:relays
LIBS:motors
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:pc-cache
EELAYER 25 0
EELAYER END
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Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
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$Comp
L 74LS161 U1
U 1 1 5AA16657
P 4900 2250
F 0 "U1" H 4950 2350 50  0000 C CNN
F 1 "74LS161" H 5000 2050 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 4900 2250 50  0001 C CNN
F 3 "" H 4900 2250 50  0001 C CNN
	1    4900 2250
	1    0    0    -1  
$EndComp
$Comp
L 74LS161 U3
U 1 1 5AA1679F
P 4900 5700
F 0 "U3" H 4950 5800 50  0000 C CNN
F 1 "74LS161" H 5000 5500 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 4900 5700 50  0001 C CNN
F 3 "" H 4900 5700 50  0001 C CNN
	1    4900 5700
	1    0    0    -1  
$EndComp
$Comp
L Conn_01x12 J2
U 1 1 5AA16970
P 2600 4000
F 0 "J2" H 2600 4600 50  0000 C CNN
F 1 "Conn_01x12" H 2600 3300 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x12_Pitch2.54mm" H 2600 4000 50  0001 C CNN
F 3 "" H 2600 4000 50  0001 C CNN
	1    2600 4000
	-1   0    0    -1  
$EndComp
$Comp
L Conn_01x12 J4
U 1 1 5AA169ED
P 7350 3950
F 0 "J4" H 7350 4550 50  0000 C CNN
F 1 "Conn_01x12" H 7350 3250 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x12_Pitch2.54mm" H 7350 3950 50  0001 C CNN
F 3 "" H 7350 3950 50  0001 C CNN
	1    7350 3950
	1    0    0    -1  
$EndComp
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
	3500 1950 3500 3600
Wire Wire Line
	3500 3600 2800 3600
Wire Wire Line
	2800 3700 3450 3700
Wire Wire Line
	3450 3700 3450 1850
Wire Wire Line
	3450 1850 4200 1850
Wire Wire Line
	4200 1750 3400 1750
Wire Wire Line
	3400 1750 3400 3800
Wire Wire Line
	3400 3800 2800 3800
Wire Wire Line
	2800 3900 3950 3900
Wire Wire Line
	3950 3900 3950 3750
Wire Wire Line
	3950 3750 4200 3750
Wire Wire Line
	4200 3650 3900 3650
Wire Wire Line
	3900 3650 3900 4000
Wire Wire Line
	3900 4000 2800 4000
Wire Wire Line
	2800 4100 3850 4100
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
	3800 4200 2800 4200
Wire Wire Line
	2800 4300 3400 4300
Wire Wire Line
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Wire Wire Line
	3450 5400 3450 4400
Wire Wire Line
	3450 4400 2800 4400
Wire Wire Line
	2800 4500 3500 4500
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
	2800 4600 3550 4600
Wire Wire Line
	3400 5500 4200 5500
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
	5600 5300 6450 5300
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
	6400 5200 5600 5200
Wire Wire Line
	7150 4150 6400 4150
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
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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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$Comp
L VCC #PWR01
U 1 1 5AA17719
P 2800 3100
F 0 "#PWR01" H 2800 2950 50  0001 C CNN
F 1 "VCC" H 2800 3250 50  0000 C CNN
F 2 "" H 2800 3100 50  0001 C CNN
F 3 "" H 2800 3100 50  0001 C CNN
	1    2800 3100
	-1   0    0    1   
$EndComp
$Comp
L GND #PWR02
U 1 1 5AA17667
P 3000 3000
F 0 "#PWR02" H 3000 2750 50  0001 C CNN
F 1 "GND" H 3000 2850 50  0000 C CNN
F 2 "" H 3000 3000 50  0001 C CNN
F 3 "" H 3000 3000 50  0001 C CNN
	1    3000 3000
	1    0    0    -1  
$EndComp
$Comp
L 74LS161 U2
U 1 1 5AA166E3
P 4900 3950
F 0 "U2" H 4950 4050 50  0000 C CNN
F 1 "74LS161" H 5000 3750 50  0000 C CNN
F 2 "Housings_SOIC:SOIC-16_3.9x9.9mm_Pitch1.27mm" H 4900 3950 50  0001 C CNN
F 3 "" H 4900 3950 50  0001 C CNN
	1    4900 3950
	1    0    0    -1  
$EndComp
Text Label 5600 2250 0    60   ~ 0
C0
Text Label 4200 4050 0    60   ~ 0
C0
Text Label 4200 4150 0    60   ~ 0
C0
Text Label 5600 3950 0    60   ~ 0
C1
Text Label 4200 5800 0    60   ~ 0
C1
Text Label 4200 5900 0    60   ~ 0
C1
Wire Wire Line
	2300 3000 3000 3000
Wire Wire Line
	2300 3100 2800 3100
Text Label 4200 2750 0    60   ~ 0
Reset
Text Label 4200 2350 0    60   ~ 0
Count
Text Label 4200 2450 0    60   ~ 0
Count
Text Label 4200 2250 0    60   ~ 0
PE
Text Label 4200 2550 0    60   ~ 0
Clock
Text Label 4200 3950 0    60   ~ 0
PE
Text Label 4200 4250 0    60   ~ 0
Clock
Text Label 4200 4450 0    60   ~ 0
Reset
Text Label 4200 5700 0    60   ~ 0
PE
Text Label 4200 6000 0    60   ~ 0
Clock
Text Label 4200 6200 0    60   ~ 0
Reset
$Comp
L Conn_01x03 J3
U 1 1 5AA19165
P 7300 2600
F 0 "J3" H 7300 2800 50  0000 C CNN
F 1 "Conn_01x03" H 7300 2400 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm" H 7300 2600 50  0001 C CNN
F 3 "" H 7300 2600 50  0001 C CNN
	1    7300 2600
	1    0    0    -1  
$EndComp
Text Label 7100 2500 0    60   ~ 0
Count
Text Label 7100 2600 0    60   ~ 0
PE
$Comp
L Conn_01x03 J1
U 1 1 5AA191ED
P 2100 3000
F 0 "J1" H 2100 3200 50  0000 C CNN
F 1 "Conn_01x03" H 2100 2800 50  0000 C CNN
F 2 "Pin_Headers:Pin_Header_Straight_1x03_Pitch2.54mm" H 2100 3000 50  0001 C CNN
F 3 "" H 2100 3000 50  0001 C CNN
	1    2100 3000
	-1   0    0    -1  
$EndComp
Text Label 2300 3000 0    60   ~ 0
GND
Text Label 2300 3100 0    60   ~ 0
VCC
NoConn ~ 5600 5700
$Comp
L PWR_FLAG #FLG03
U 1 1 5AA1975B
P 1750 4850
F 0 "#FLG03" H 1750 4925 50  0001 C CNN
F 1 "PWR_FLAG" H 1750 5000 50  0000 C CNN
F 2 "" H 1750 4850 50  0001 C CNN
F 3 "" H 1750 4850 50  0001 C CNN
	1    1750 4850
	1    0    0    -1  
$EndComp
$Comp
L GND #PWR04
U 1 1 5AA19792
P 1750 4850
F 0 "#PWR04" H 1750 4600 50  0001 C CNN
F 1 "GND" H 1750 4700 50  0000 C CNN
F 2 "" H 1750 4850 50  0001 C CNN
F 3 "" H 1750 4850 50  0001 C CNN
	1    1750 4850
	1    0    0    -1  
$EndComp
$Comp
L PWR_FLAG #FLG05
U 1 1 5AA197B9
P 1100 5500
F 0 "#FLG05" H 1100 5575 50  0001 C CNN
F 1 "PWR_FLAG" H 1100 5650 50  0000 C CNN
F 2 "" H 1100 5500 50  0001 C CNN
F 3 "" H 1100 5500 50  0001 C CNN
	1    1100 5500
	-1   0    0    1   
$EndComp
$Comp
L VCC #PWR06
U 1 1 5AA197DB
P 1100 5500
F 0 "#PWR06" H 1100 5350 50  0001 C CNN
F 1 "VCC" H 1100 5650 50  0000 C CNN
F 2 "" H 1100 5500 50  0001 C CNN
F 3 "" H 1100 5500 50  0001 C CNN
	1    1100 5500
	1    0    0    -1  
$EndComp
Text Label 7100 2700 0    60   ~ 0
Clock
NoConn ~ 2300 2900
Text Label 3900 2750 0    60   ~ 0
VCC
Text Label 3900 4450 0    60   ~ 0
VCC
Text Label 3900 6200 0    60   ~ 0
VCC
Wire Wire Line
	3900 2750 4200 2750
Wire Wire Line
	3900 4450 4200 4450
Wire Wire Line
	3900 6200 4200 6200
$EndSCHEMATC