EESchema Schematic File Version 2 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:power LIBS:eSim_Plot LIBS:transistors LIBS:conn LIBS:eSim_User LIBS:regul LIBS:74xx LIBS:cmos4000 LIBS:eSim_Analog LIBS:eSim_Devices LIBS:eSim_Digital LIBS:eSim_Hybrid LIBS:eSim_Miscellaneous LIBS:eSim_Power LIBS:eSim_Sources LIBS:eSim_Subckt LIBS:eSim_Nghdl LIBS:eSim_Ngveri LIBS:LTC156531-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 1 1 Title "" Date "" Rev "" Comp "" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L lm_741 X1 U 1 1 6828767C P 2700 2050 F 0 "X1" H 2500 2050 60 0000 C CNN F 1 "lm_741" H 2600 1800 60 0000 C CNN F 2 "" H 2700 2050 60 0000 C CNN F 3 "" H 2700 2050 60 0000 C CNN 1 2700 2050 1 0 0 -1 $EndComp $Comp L resistor R2 U 1 1 6828767D P 1750 2200 F 0 "R2" H 1800 2330 50 0000 C CNN F 1 "350" H 1800 2150 50 0000 C CNN F 2 "" H 1800 2180 30 0000 C CNN F 3 "" V 1800 2250 30 0000 C CNN 1 1750 2200 1 0 0 -1 $EndComp $Comp L capacitor C3 U 1 1 6828767E P 2050 2600 F 0 "C3" H 2075 2700 50 0000 L CNN F 1 "0.01u" H 2075 2500 50 0000 L CNN F 2 "" H 2088 2450 30 0000 C CNN F 3 "" H 2050 2600 60 0000 C CNN 1 2050 2600 1 0 0 -1 $EndComp $Comp L resistor R6 U 1 1 6828767F P 2600 950 F 0 "R6" H 2650 1080 50 0000 C CNN F 1 "10k" H 2650 900 50 0000 C CNN F 2 "" H 2650 930 30 0000 C CNN F 3 "" V 2650 1000 30 0000 C CNN 1 2600 950 1 0 0 -1 $EndComp $Comp L resistor R4 U 1 1 68287680 P 1800 1050 F 0 "R4" H 1850 1180 50 0000 C CNN F 1 "10k" H 1850 1000 50 0000 C CNN F 2 "" H 1850 1030 30 0000 C CNN F 3 "" V 1850 1100 30 0000 C CNN 1 1800 1050 0 1 1 0 $EndComp $Comp L capacitor C1 U 1 1 68287681 P 1350 1100 F 0 "C1" H 1375 1200 50 0000 L CNN F 1 "0.0001u" H 1375 1000 50 0000 L CNN F 2 "" H 1388 950 30 0000 C CNN F 3 "" H 1350 1100 60 0000 C CNN 1 1350 1100 1 0 0 -1 $EndComp $Comp L GND #PWR01 U 1 1 68287682 P 2050 3000 F 0 "#PWR01" H 2050 2750 50 0001 C CNN F 1 "GND" H 2050 2850 50 0000 C CNN F 2 "" H 2050 3000 50 0001 C CNN F 3 "" H 2050 3000 50 0001 C CNN 1 2050 3000 1 0 0 -1 $EndComp $Comp L GND #PWR02 U 1 1 68287683 P 1850 1500 F 0 "#PWR02" H 1850 1250 50 0001 C CNN F 1 "GND" H 1850 1350 50 0000 C CNN F 2 "" H 1850 1500 50 0001 C CNN F 3 "" H 1850 1500 50 0001 C CNN 1 1850 1500 1 0 0 -1 $EndComp $Comp L GND #PWR03 U 1 1 68287684 P 1350 1500 F 0 "#PWR03" H 1350 1250 50 0001 C CNN F 1 "GND" H 1350 1350 50 0000 C CNN F 2 "" H 1350 1500 50 0001 C CNN F 3 "" H 1350 1500 50 0001 C CNN 1 1350 1500 1 0 0 -1 $EndComp NoConn ~ 2650 1650 NoConn ~ 2750 1700 NoConn ~ 2850 2350 $Comp L lm_741 X3 U 1 1 68287685 P 6100 2000 F 0 "X3" H 5900 2000 60 0000 C CNN F 1 "lm_741" H 6000 1750 60 0000 C CNN F 2 "" H 6100 2000 60 0000 C CNN F 3 "" H 6100 2000 60 0000 C CNN 1 6100 2000 1 0 0 -1 $EndComp $Comp L resistor R8 U 1 1 68287686 P 4600 2150 F 0 "R8" H 4650 2280 50 0000 C CNN F 1 "350" H 4650 2100 50 0000 C CNN F 2 "" H 4650 2130 30 0000 C CNN F 3 "" V 4650 2200 30 0000 C CNN 1 4600 2150 1 0 0 -1 $EndComp $Comp L resistor R9 U 1 1 68287687 P 5150 2150 F 0 "R9" H 5200 2280 50 0000 C CNN F 1 "350" H 5200 2100 50 0000 C CNN F 2 "" H 5200 2130 30 0000 C CNN F 3 "" V 5200 2200 30 0000 C CNN 1 5150 2150 1 0 0 -1 $EndComp $Comp L capacitor C7 U 1 1 68287688 P 5450 2550 F 0 "C7" H 5475 2650 50 0000 L CNN F 1 "0.01u" H 5475 2450 50 0000 L CNN F 2 "" H 5488 2400 30 0000 C CNN F 3 "" H 5450 2550 60 0000 C CNN 1 5450 2550 1 0 0 -1 $EndComp $Comp L capacitor C8 U 1 1 68287689 P 5600 3350 F 0 "C8" H 5625 3450 50 0000 L CNN F 1 "0.01u" H 5625 3250 50 0000 L CNN F 2 "" H 5638 3200 30 0000 C CNN F 3 "" H 5600 3350 60 0000 C CNN 1 5600 3350 0 1 1 0 $EndComp $Comp L resistor R11 U 1 1 6828768A P 6000 900 F 0 "R11" H 6050 1030 50 0000 C CNN F 1 "15.55k" H 6050 850 50 0000 C CNN F 2 "" H 6050 880 30 0000 C CNN F 3 "" V 6050 950 30 0000 C CNN 1 6000 900 1 0 0 -1 $EndComp $Comp L resistor R10 U 1 1 6828768B P 5200 1000 F 0 "R10" H 5250 1130 50 0000 C CNN F 1 "10k" H 5250 950 50 0000 C CNN F 2 "" H 5250 980 30 0000 C CNN F 3 "" V 5250 1050 30 0000 C CNN 1 5200 1000 0 1 1 0 $EndComp $Comp L capacitor C6 U 1 1 6828768C P 4750 1050 F 0 "C6" H 4775 1150 50 0000 L CNN F 1 "0.003u" H 4775 950 50 0000 L CNN F 2 "" H 4788 900 30 0000 C CNN F 3 "" H 4750 1050 60 0000 C CNN 1 4750 1050 1 0 0 -1 $EndComp $Comp L GND #PWR04 U 1 1 6828768D P 5450 2950 F 0 "#PWR04" H 5450 2700 50 0001 C CNN F 1 "GND" H 5450 2800 50 0000 C CNN F 2 "" H 5450 2950 50 0001 C CNN F 3 "" H 5450 2950 50 0001 C CNN 1 5450 2950 1 0 0 -1 $EndComp $Comp L GND #PWR05 U 1 1 6828768E P 5250 1450 F 0 "#PWR05" H 5250 1200 50 0001 C CNN F 1 "GND" H 5250 1300 50 0000 C CNN F 2 "" H 5250 1450 50 0001 C CNN F 3 "" H 5250 1450 50 0001 C CNN 1 5250 1450 1 0 0 -1 $EndComp $Comp L GND #PWR06 U 1 1 6828768F P 4750 1450 F 0 "#PWR06" H 4750 1200 50 0001 C CNN F 1 "GND" H 4750 1300 50 0000 C CNN F 2 "" H 4750 1450 50 0001 C CNN F 3 "" H 4750 1450 50 0001 C CNN 1 4750 1450 1 0 0 -1 $EndComp NoConn ~ 6050 1600 NoConn ~ 6150 1650 NoConn ~ 6250 2300 $Comp L lm_741 X4 U 1 1 68287690 P 9500 2100 F 0 "X4" H 9300 2100 60 0000 C CNN F 1 "lm_741" H 9400 1850 60 0000 C CNN F 2 "" H 9500 2100 60 0000 C CNN F 3 "" H 9500 2100 60 0000 C CNN 1 9500 2100 1 0 0 -1 $EndComp $Comp L resistor R12 U 1 1 68287691 P 8000 2250 F 0 "R12" H 8050 2380 50 0000 C CNN F 1 "350" H 8050 2200 50 0000 C CNN F 2 "" H 8050 2230 30 0000 C CNN F 3 "" V 8050 2300 30 0000 C CNN 1 8000 2250 1 0 0 -1 $EndComp $Comp L resistor R13 U 1 1 68287692 P 8550 2250 F 0 "R13" H 8600 2380 50 0000 C CNN F 1 "350" H 8600 2200 50 0000 C CNN F 2 "" H 8600 2230 30 0000 C CNN F 3 "" V 8600 2300 30 0000 C CNN 1 8550 2250 1 0 0 -1 $EndComp $Comp L capacitor C10 U 1 1 68287693 P 8850 2650 F 0 "C10" H 8875 2750 50 0000 L CNN F 1 "0.01u" H 8875 2550 50 0000 L CNN F 2 "" H 8888 2500 30 0000 C CNN F 3 "" H 8850 2650 60 0000 C CNN 1 8850 2650 1 0 0 -1 $EndComp $Comp L capacitor C11 U 1 1 68287694 P 9000 3450 F 0 "C11" H 9025 3550 50 0000 L CNN F 1 "0.01u" H 9025 3350 50 0000 L CNN F 2 "" H 9038 3300 30 0000 C CNN F 3 "" H 9000 3450 60 0000 C CNN 1 9000 3450 0 1 1 0 $EndComp $Comp L resistor R15 U 1 1 68287695 P 9400 1000 F 0 "R15" H 9450 1130 50 0000 C CNN F 1 "7.53k" H 9450 950 50 0000 C CNN F 2 "" H 9450 980 30 0000 C CNN F 3 "" V 9450 1050 30 0000 C CNN 1 9400 1000 1 0 0 -1 $EndComp $Comp L resistor R14 U 1 1 68287696 P 8600 1100 F 0 "R14" H 8650 1230 50 0000 C CNN F 1 "10k" H 8650 1050 50 0000 C CNN F 2 "" H 8650 1080 30 0000 C CNN F 3 "" V 8650 1150 30 0000 C CNN 1 8600 1100 0 1 1 0 $EndComp $Comp L capacitor C9 U 1 1 68287697 P 8150 1150 F 0 "C9" H 8175 1250 50 0000 L CNN F 1 "0.005u" H 8175 1050 50 0000 L CNN F 2 "" H 8188 1000 30 0000 C CNN F 3 "" H 8150 1150 60 0000 C CNN 1 8150 1150 1 0 0 -1 $EndComp $Comp L GND #PWR07 U 1 1 68287698 P 8850 3050 F 0 "#PWR07" H 8850 2800 50 0001 C CNN F 1 "GND" H 8850 2900 50 0000 C CNN F 2 "" H 8850 3050 50 0001 C CNN F 3 "" H 8850 3050 50 0001 C CNN 1 8850 3050 1 0 0 -1 $EndComp $Comp L GND #PWR08 U 1 1 68287699 P 8650 1550 F 0 "#PWR08" H 8650 1300 50 0001 C CNN F 1 "GND" H 8650 1400 50 0000 C CNN F 2 "" H 8650 1550 50 0001 C CNN F 3 "" H 8650 1550 50 0001 C CNN 1 8650 1550 1 0 0 -1 $EndComp $Comp L GND #PWR09 U 1 1 6828769A P 8150 1550 F 0 "#PWR09" H 8150 1300 50 0001 C CNN F 1 "GND" H 8150 1400 50 0000 C CNN F 2 "" H 8150 1550 50 0001 C CNN F 3 "" H 8150 1550 50 0001 C CNN 1 8150 1550 1 0 0 -1 $EndComp NoConn ~ 9450 1700 NoConn ~ 9550 1750 NoConn ~ 9650 2400 $Comp L lm_741 X2 U 1 1 6828769B P 2700 5600 F 0 "X2" H 2500 5600 60 0000 C CNN F 1 "lm_741" H 2600 5350 60 0000 C CNN F 2 "" H 2700 5600 60 0000 C CNN F 3 "" H 2700 5600 60 0000 C CNN 1 2700 5600 1 0 0 -1 $EndComp $Comp L resistor R1 U 1 1 6828769C P 1200 5750 F 0 "R1" H 1250 5880 50 0000 C CNN F 1 "350" H 1250 5700 50 0000 C CNN F 2 "" H 1250 5730 30 0000 C CNN F 3 "" V 1250 5800 30 0000 C CNN 1 1200 5750 1 0 0 -1 $EndComp $Comp L resistor R3 U 1 1 6828769D P 1750 5750 F 0 "R3" H 1800 5880 50 0000 C CNN F 1 "350" H 1800 5700 50 0000 C CNN F 2 "" H 1800 5730 30 0000 C CNN F 3 "" V 1800 5800 30 0000 C CNN 1 1750 5750 1 0 0 -1 $EndComp $Comp L capacitor C4 U 1 1 6828769E P 2050 6150 F 0 "C4" H 2075 6250 50 0000 L CNN F 1 "0.01u" H 2075 6050 50 0000 L CNN F 2 "" H 2088 6000 30 0000 C CNN F 3 "" H 2050 6150 60 0000 C CNN 1 2050 6150 1 0 0 -1 $EndComp $Comp L capacitor C5 U 1 1 6828769F P 2200 6950 F 0 "C5" H 2225 7050 50 0000 L CNN F 1 "0.01u" H 2225 6850 50 0000 L CNN F 2 "" H 2238 6800 30 0000 C CNN F 3 "" H 2200 6950 60 0000 C CNN 1 2200 6950 0 1 1 0 $EndComp $Comp L resistor R7 U 1 1 682876A0 P 2600 4500 F 0 "R7" H 2650 4630 50 0000 C CNN F 1 "1.98k" H 2650 4450 50 0000 C CNN F 2 "" H 2650 4480 30 0000 C CNN F 3 "" V 2650 4550 30 0000 C CNN 1 2600 4500 1 0 0 -1 $EndComp $Comp L resistor R5 U 1 1 682876A1 P 1800 4600 F 0 "R5" H 1850 4730 50 0000 C CNN F 1 "10k" H 1850 4550 50 0000 C CNN F 2 "" H 1850 4580 30 0000 C CNN F 3 "" V 1850 4650 30 0000 C CNN 1 1800 4600 0 1 1 0 $EndComp $Comp L capacitor C2 U 1 1 682876A2 P 1350 4650 F 0 "C2" H 1375 4750 50 0000 L CNN F 1 "0.007u" H 1375 4550 50 0000 L CNN F 2 "" H 1388 4500 30 0000 C CNN F 3 "" H 1350 4650 60 0000 C CNN 1 1350 4650 1 0 0 -1 $EndComp $Comp L GND #PWR010 U 1 1 682876A3 P 2050 6550 F 0 "#PWR010" H 2050 6300 50 0001 C CNN F 1 "GND" H 2050 6400 50 0000 C CNN F 2 "" H 2050 6550 50 0001 C CNN F 3 "" H 2050 6550 50 0001 C CNN 1 2050 6550 1 0 0 -1 $EndComp $Comp L GND #PWR011 U 1 1 682876A4 P 1850 5050 F 0 "#PWR011" H 1850 4800 50 0001 C CNN F 1 "GND" H 1850 4900 50 0000 C CNN F 2 "" H 1850 5050 50 0001 C CNN F 3 "" H 1850 5050 50 0001 C CNN 1 1850 5050 1 0 0 -1 $EndComp $Comp L GND #PWR012 U 1 1 682876A5 P 1350 5050 F 0 "#PWR012" H 1350 4800 50 0001 C CNN F 1 "GND" H 1350 4900 50 0000 C CNN F 2 "" H 1350 5050 50 0001 C CNN F 3 "" H 1350 5050 50 0001 C CNN 1 1350 5050 1 0 0 -1 $EndComp NoConn ~ 2650 5200 NoConn ~ 2750 5250 NoConn ~ 2850 5900 Wire Wire Line 2150 650 2150 1900 Wire Wire Line 1850 900 2500 900 Wire Wire Line 2800 900 3600 900 Wire Wire Line 3600 900 3600 2050 Wire Wire Line 3250 2050 3700 2050 Wire Wire Line 2550 1600 2550 1200 Wire Wire Line 2550 1200 3800 1200 Wire Wire Line 3800 1200 3800 3650 Wire Wire Line 2550 2500 2550 2800 Wire Wire Line 2550 2800 3300 2800 Wire Wire Line 1950 2150 2150 2150 Wire Wire Line 750 2150 1650 2150 Wire Wire Line 1350 1250 1350 1500 Wire Wire Line 1850 1250 1850 1500 Wire Wire Line 1850 900 1850 950 Connection ~ 2150 900 Wire Wire Line 1350 950 1350 650 Wire Wire Line 1350 650 2150 650 Wire Wire Line 2050 2150 2050 2450 Connection ~ 2050 2150 Wire Wire Line 2050 2750 2050 3000 Connection ~ 3600 2050 Wire Wire Line 5550 600 5550 1850 Wire Wire Line 5250 850 5900 850 Wire Wire Line 6200 850 7000 850 Wire Wire Line 7000 850 7000 3350 Wire Wire Line 6650 2000 7100 2000 Wire Wire Line 5950 1550 5950 1150 Wire Wire Line 5950 1150 7200 1150 Wire Wire Line 7200 1150 7200 3550 Wire Wire Line 5950 2450 5950 2750 Wire Wire Line 5950 2750 6700 2750 Wire Wire Line 5350 2100 5550 2100 Wire Wire Line 4800 2100 5050 2100 Wire Wire Line 4750 1200 4750 1450 Wire Wire Line 5250 1200 5250 1450 Wire Wire Line 5250 850 5250 900 Connection ~ 5550 850 Wire Wire Line 4750 900 4750 600 Wire Wire Line 4750 600 5550 600 Wire Wire Line 5450 2100 5450 2400 Connection ~ 5450 2100 Wire Wire Line 5450 2700 5450 2950 Wire Wire Line 4950 2100 4950 3350 Wire Wire Line 4950 3350 5450 3350 Connection ~ 4950 2100 Wire Wire Line 7000 3350 5750 3350 Connection ~ 7000 2000 Wire Wire Line 8950 700 8950 1950 Wire Wire Line 8650 950 9300 950 Wire Wire Line 9600 950 10400 950 Wire Wire Line 10400 950 10400 3450 Wire Wire Line 10050 2100 10800 2100 Wire Wire Line 9350 1650 9350 1250 Wire Wire Line 9350 1250 10600 1250 Wire Wire Line 10600 1250 10600 3650 Wire Wire Line 9350 2550 9350 2850 Wire Wire Line 9350 2850 10100 2850 Wire Wire Line 8750 2200 8950 2200 Wire Wire Line 8200 2200 8450 2200 Wire Wire Line 8150 1300 8150 1550 Wire Wire Line 8650 1300 8650 1550 Wire Wire Line 8650 950 8650 1000 Connection ~ 8950 950 Wire Wire Line 8150 1000 8150 700 Wire Wire Line 8150 700 8950 700 Wire Wire Line 8850 2200 8850 2500 Connection ~ 8850 2200 Wire Wire Line 8850 2800 8850 3050 Wire Wire Line 8350 2200 8350 3450 Wire Wire Line 8350 3450 8850 3450 Connection ~ 8350 2200 Wire Wire Line 10400 3450 9150 3450 Connection ~ 10400 2100 Wire Wire Line 2150 4200 2150 5450 Wire Wire Line 1850 4450 2500 4450 Wire Wire Line 2800 4450 3600 4450 Wire Wire Line 3600 4450 3600 6950 Wire Wire Line 3250 5600 5350 5600 Wire Wire Line 2550 5150 2550 4750 Wire Wire Line 2550 4750 3800 4750 Wire Wire Line 3800 4750 3800 6350 Wire Wire Line 2550 6050 2550 6350 Wire Wire Line 2550 6350 3300 6350 Wire Wire Line 1950 5700 2150 5700 Wire Wire Line 1400 5700 1650 5700 Wire Wire Line 1350 4800 1350 5050 Wire Wire Line 1850 4800 1850 5050 Wire Wire Line 1850 4450 1850 4500 Connection ~ 2150 4450 Wire Wire Line 1350 4500 1350 4200 Wire Wire Line 1350 4200 2150 4200 Wire Wire Line 2050 5700 2050 6000 Connection ~ 2050 5700 Wire Wire Line 2050 6300 2050 6550 Wire Wire Line 1550 5700 1550 6950 Wire Wire Line 1550 6950 2050 6950 Connection ~ 1550 5700 Wire Wire Line 3600 6950 2350 6950 Connection ~ 3600 5600 Wire Wire Line 1100 5700 800 5700 Wire Wire Line 800 5700 800 4250 Wire Wire Line 800 4250 10800 4250 Wire Wire Line 10800 4250 10800 2100 Wire Wire Line 7900 2200 7100 2200 Wire Wire Line 7100 2200 7100 2000 Wire Wire Line 4500 2100 3700 2100 Wire Wire Line 3700 2100 3700 2050 Wire Wire Line 3300 6350 3300 2800 Wire Wire Line 3200 4150 6700 4150 Wire Wire Line 6700 4150 6700 2750 Wire Wire Line 3200 4150 3200 4050 Wire Wire Line 3200 4050 10100 4050 Wire Wire Line 10100 4050 10100 2850 Connection ~ 3300 4150 Wire Wire Line 7200 3550 3700 3550 Wire Wire Line 10600 3650 3800 3650 Connection ~ 3800 3550 Wire Wire Line 3800 6350 4500 6350 Wire Wire Line 4500 6350 4500 4600 Wire Wire Line 4500 4600 4050 4600 Wire Wire Line 4050 4600 4050 3750 Wire Wire Line 4050 3750 3700 3750 Wire Wire Line 3700 3750 3700 3550 Wire Wire Line 900 1850 900 2300 Wire Wire Line 900 2300 750 2300 Wire Wire Line 750 2300 750 2150 Wire Wire Line 900 2600 3550 2600 Wire Wire Line 3550 2600 3550 3550 Wire Wire Line 3550 3550 3800 3550 Wire Wire Line 900 2900 1600 2900 Wire Wire Line 1600 2900 1600 4000 Wire Wire Line 1600 4000 3300 4000 Wire Wire Line 3300 4000 3300 4150 $Comp L PORT U1 U 1 1 68372E5B P 600 1850 F 0 "U1" H 650 1950 30 0000 C CNN F 1 "PORT" H 600 1850 30 0000 C CNN F 2 "" H 600 1850 60 0000 C CNN F 3 "" H 600 1850 60 0000 C CNN 1 600 1850 1 0 0 -1 $EndComp $Comp L PORT U1 U 2 1 68372F6C P 650 2450 F 0 "U1" H 700 2550 30 0000 C CNN F 1 "PORT" H 650 2450 30 0000 C CNN F 2 "" H 650 2450 60 0000 C CNN F 3 "" H 650 2450 60 0000 C CNN 2 650 2450 1 0 0 -1 $EndComp $Comp L PORT U1 U 3 1 68373035 P 650 2600 F 0 "U1" H 700 2700 30 0000 C CNN F 1 "PORT" H 650 2600 30 0000 C CNN F 2 "" H 650 2600 60 0000 C CNN F 3 "" H 650 2600 60 0000 C CNN 3 650 2600 1 0 0 -1 $EndComp $Comp L PORT U1 U 4 1 683730E4 P 650 2900 F 0 "U1" H 700 3000 30 0000 C CNN F 1 "PORT" H 650 2900 30 0000 C CNN F 2 "" H 650 2900 60 0000 C CNN F 3 "" H 650 2900 60 0000 C CNN 4 650 2900 1 0 0 -1 $EndComp $Comp L PORT U1 U 7 1 6837319D P 5600 5600 F 0 "U1" H 5650 5700 30 0000 C CNN F 1 "PORT" H 5600 5600 30 0000 C CNN F 2 "" H 5600 5600 60 0000 C CNN F 3 "" H 5600 5600 60 0000 C CNN 7 5600 5600 -1 0 0 1 $EndComp $Comp L PORT U1 U 8 1 6837326E P 5600 6000 F 0 "U1" H 5650 6100 30 0000 C CNN F 1 "PORT" H 5600 6000 30 0000 C CNN F 2 "" H 5600 6000 60 0000 C CNN F 3 "" H 5600 6000 60 0000 C CNN 8 5600 6000 -1 0 0 1 $EndComp $Comp L PORT U1 U 5 1 68373305 P 3900 6600 F 0 "U1" H 3950 6700 30 0000 C CNN F 1 "PORT" H 3900 6600 30 0000 C CNN F 2 "" H 3900 6600 60 0000 C CNN F 3 "" H 3900 6600 60 0000 C CNN 5 3900 6600 1 0 0 -1 $EndComp $Comp L PORT U1 U 6 1 68373408 P 3900 6900 F 0 "U1" H 3950 7000 30 0000 C CNN F 1 "PORT" H 3900 6900 30 0000 C CNN F 2 "" H 3900 6900 60 0000 C CNN F 3 "" H 3900 6900 60 0000 C CNN 6 3900 6900 1 0 0 -1 $EndComp Wire Wire Line 850 1850 900 1850 Wire Wire Line 900 2450 1750 2450 Wire Wire Line 1750 2450 1750 2850 Wire Wire Line 1750 2850 2050 2850 Connection ~ 2050 2850 Wire Wire Line 5350 6000 3400 6000 Wire Wire Line 3400 6000 3400 6450 Wire Wire Line 3400 6450 2050 6450 Connection ~ 2050 6450 Wire Wire Line 4150 6600 4800 6600 Wire Wire Line 4800 6000 4800 6900 Connection ~ 4800 6000 Wire Wire Line 4800 6900 4150 6900 Connection ~ 4800 6600 $EndSCHEMATC