EESchema Schematic File Version 2 LIBS:power,device,conn,linear,regul,74xx,cmos4000,adc-dac,memory,xilinx,special,microcontrollers,dsp,microchip,analog_switches,motorola,texas,intel,audio,interface,digital-audio,philips,display,cypress,siliconi,contrib,valves,./pic_programmer.cache EELAYER 23 0 EELAYER END $Descr A4 11700 8267 Sheet 1 1 Title "JDM - COM84 PIC Programmer with 13V DC/DC converter" Date "16 may 2007" Rev "2" Comp "KiCad" Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr Wire Wire Line 6100 700 6100 750 Wire Wire Line 6100 750 5700 750 Wire Wire Line 5700 750 5700 800 Connection ~ 7050 1600 Wire Wire Line 7050 1850 7050 1600 Wire Wire Line 6950 2900 5850 2900 Wire Wire Line 5850 2900 5850 1500 Wire Wire Line 5850 1500 5450 1500 Connection ~ 8300 3200 Wire Wire Line 8150 3200 8300 3200 Wire Wire Line 8300 3200 8650 3200 Wire Wire Line 8650 3200 9200 3200 Wire Wire Line 7900 2650 7900 2900 Wire Wire Line 3350 1700 3450 1700 Wire Wire Line 3450 1700 3500 1700 Connection ~ 3450 1700 Wire Wire Line 3450 1650 3450 1700 Wire Wire Line 3450 1700 3450 1800 Wire Wire Line 2800 1750 2800 1700 Connection ~ 2800 1700 Wire Wire Line 3750 3150 3850 3150 Wire Wire Line 3850 3150 3900 3150 Connection ~ 3850 3150 Wire Wire Line 3850 3100 3850 3150 Wire Wire Line 3850 3150 3850 3250 Wire Wire Line 3200 3200 3200 3150 Connection ~ 3200 3150 Wire Wire Line 3750 5100 3850 5100 Wire Wire Line 3850 5100 3900 5100 Connection ~ 3850 5100 Wire Wire Line 3850 5050 3850 5100 Wire Wire Line 3850 5100 3850 5200 Wire Wire Line 3200 5150 3200 5100 Connection ~ 3200 5100 Wire Wire Line 4850 3150 4800 3150 Wire Wire Line 4450 1700 4400 1700 Wire Wire Line 4850 5100 4800 5100 Wire Wire Line 5400 3150 5400 4200 Wire Wire Line 5400 4200 4800 4200 Connection ~ 5400 3150 Wire Wire Line 3250 3150 3200 3150 Wire Wire Line 3200 3150 2450 3150 Wire Wire Line 1700 3600 2250 3600 Wire Wire Line 2250 3600 2250 1700 Wire Wire Line 2250 1700 2800 1700 Wire Wire Line 2800 1700 2850 1700 Wire Wire Line 1700 3800 2450 3800 Wire Wire Line 2450 3800 2450 3150 Wire Wire Line 1700 3500 2100 3500 Wire Wire Line 2100 3500 2100 5100 Wire Wire Line 2100 5100 3200 5100 Wire Wire Line 3200 5100 3250 5100 Wire Wire Line 6550 2150 6550 2200 Wire Wire Line 6550 2600 6550 2650 Wire Wire Line 6550 1650 6550 1600 Wire Wire Line 6550 1200 6550 1100 Wire Wire Line 6100 1400 6100 1250 Wire Wire Line 6250 1400 6100 1400 Wire Wire Line 6100 1400 6000 1400 Connection ~ 6100 1400 Wire Wire Line 5500 1400 5450 1400 Wire Wire Line 5450 1400 5450 1500 Wire Wire Line 5150 1700 4950 1700 Wire Wire Line 6200 3150 5400 3150 Wire Wire Line 5400 3150 5350 3150 Wire Wire Line 6300 5100 5350 5100 Wire Wire Line 8350 1600 8300 1600 Wire Wire Line 8300 1600 7600 1600 Wire Wire Line 1450 6650 1350 6650 Wire Wire Line 1400 6900 1400 6850 Wire Wire Line 2300 6650 1950 6650 Wire Wire Line 1950 6650 1850 6650 Wire Wire Line 1950 6700 1950 6650 Connection ~ 1950 6650 Wire Wire Line 3200 6650 3200 6700 Wire Wire Line 4100 6650 4150 6650 Wire Wire Line 4150 6650 4150 6750 Wire Wire Line 3600 6650 3400 6650 Wire Wire Line 3400 6650 3200 6650 Wire Wire Line 3200 6650 3100 6650 Connection ~ 3200 6650 Wire Wire Line 3400 6650 3400 6600 Connection ~ 3400 6650 Connection ~ 8300 1600 Wire Wire Line 2250 4200 2250 3700 Wire Wire Line 2250 4200 3900 4200 Wire Wire Line 2250 3700 1700 3700 Wire Wire Line 10250 6250 10150 6250 Wire Wire Line 10150 6250 9950 6250 Wire Wire Line 9950 6250 9500 6250 Connection ~ 10150 6250 Wire Wire Line 10650 6250 10700 6250 Wire Wire Line 10700 6250 10700 6300 Wire Wire Line 7650 5550 7650 5500 Wire Wire Line 9950 6200 9950 6250 Connection ~ 9950 6250 Wire Wire Line 10150 7000 10150 7050 Wire Notes Line 5650 7250 11050 7250 Wire Notes Line 5650 7250 5650 5300 Wire Wire Line 9300 5900 9300 6000 Wire Wire Line 8650 6000 8700 6000 Wire Notes Line 5650 5300 11050 5300 Wire Notes Line 11050 5300 11050 7250 Wire Wire Line 7500 6950 7350 6950 Wire Wire Line 7350 6950 7350 7000 Wire Wire Line 8550 7150 7900 7150 Wire Wire Line 7900 7150 7900 6950 Wire Wire Line 7900 6950 8000 6950 Wire Wire Line 8500 6950 8500 6850 Wire Wire Line 8500 6850 8700 6850 Wire Wire Line 9150 6850 9100 6850 Wire Wire Line 9100 6850 9100 7150 Wire Wire Line 9100 7150 8950 7150 Wire Wire Line 8700 6000 8700 6250 Wire Wire Line 8700 6250 9100 6250 Wire Wire Line 10150 6500 10150 6250 Wire Wire Line 10150 6250 10150 6200 Wire Wire Line 9200 3850 8250 3850 Wire Wire Line 9200 4150 8250 4150 Wire Wire Line 8300 3500 9200 3500 Wire Wire Line 1350 6850 1400 6850 Wire Wire Line 1400 6850 1600 6850 Wire Wire Line 1600 6850 1600 6900 Connection ~ 1400 6850 Wire Wire Line 9650 6500 9500 6500 Wire Wire Line 9650 7000 9500 7000 Wire Wire Line 8650 6500 9300 6500 Wire Wire Line 9300 6500 9300 6750 Wire Wire Line 9300 6750 9350 6750 Wire Wire Line 8300 3100 8300 3200 Wire Wire Line 7900 2900 8000 2900 Wire Wire Line 7650 3300 7650 3200 Wire Wire Line 7400 2900 7350 2900 Wire Wire Line 6550 1600 7050 1600 Wire Wire Line 7050 1600 7100 1600 Wire Wire Line 8650 3150 8650 3200 Connection ~ 8650 3200 Wire Wire Line 5700 1200 5700 1250 Wire Wire Line 5700 1250 6100 1250 $Comp L C C U 1 1 464AD280 P 5700 1000 F 0 "C" H 5750 1100 50 0000 L C F 1 "22OnF" H 5750 900 50 0000 L C 1 5700 1000 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 4639BB04 P 8650 2550 F 0 "#PWR" H 8650 2650 30 0001 C C F 1 "VCC" H 8650 2650 30 0000 C C 1 8650 2550 1 0 0 -1 $EndComp $Comp L JUMPER JP U 1 1 4639BAF8 P 8650 2850 F 0 "JP" H 8650 3000 60 0000 C C F 1 "JUMPER" H 8650 2770 40 0000 C C 1 8650 2850 0 1 1 0 $EndComp $Comp L DIODESCH D U 1 1 4639BA28 P 7150 2900 F 0 "D" H 7150 3000 40 0000 C C F 1 "BAT43" H 7150 2800 40 0000 C C 1 7150 2900 -1 0 0 1 $EndComp $Comp L VCC #PWR U 1 1 4639BA17 P 8300 2700 F 0 "#PWR" H 8300 2800 30 0001 C C F 1 "VCC" H 8300 2800 30 0000 C C 1 8300 2700 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 4639B9EB P 7650 3700 F 0 "#PWR" H 7650 3700 30 0001 C C F 1 "GND" H 7650 3630 30 0001 C C 1 7650 3700 1 0 0 -1 $EndComp $Comp L LED D U 1 1 4639B9EA P 7650 3500 F 0 "D" H 7650 3600 50 0000 C C F 1 "YELLOW-LED" H 7650 3400 50 0000 C C F 4 "YELLOW-LED" H 7700 3650 40 0000 C C 1 7650 3500 0 1 1 0 $EndComp $Comp L R R U 1 1 4639B9E9 P 7900 3200 F 0 "R" V 7980 3200 50 0000 C C F 1 "470" V 7900 3200 50 0000 C C 1 7900 3200 0 -1 -1 0 $EndComp $Comp L R R U 1 1 4639B9B3 P 7650 2650 F 0 "R" V 7730 2650 50 0000 C C F 1 "2.2K" V 7650 2650 50 0000 C C 1 7650 2650 0 -1 -1 0 $EndComp $Comp L R R U 1 1 4639B9B0 P 7650 2900 F 0 "R" V 7730 2900 50 0000 C C F 1 "2.2K" V 7650 2900 50 0000 C C 1 7650 2900 0 -1 -1 0 $EndComp $Comp L PNP Q U 1 1 4639B996 P 8200 2900 F 0 "Q" H 8350 2900 60 0000 C C F 1 "BC307" H 8104 3050 60 0000 C C 1 8200 2900 1 0 0 1 $EndComp $Comp L VCC #PWR U 1 1 4638AB33 P 7400 2650 F 0 "#PWR" H 7400 2750 30 0001 C C F 1 "VCC" H 7400 2750 30 0000 C C 1 7400 2650 1 0 0 -1 $EndComp Text Notes 9700 6750 0 50 ~ ADJUST for VPP = 13V $Comp L POT RV U 1 1 443D0101 P 9500 6750 F 0 "RV" H 9500 6650 50 0000 C C F 1 "1K" H 9500 6750 50 0000 C C 1 9500 6750 0 -1 -1 0 $EndComp $Comp L R R U 1 1 44369638 P 7350 1600 F 0 "R" V 7430 1600 50 0000 C C F 1 "220" V 7350 1600 50 0000 C C 1 7350 1600 0 -1 -1 0 $EndComp $Comp L GND #PWR U 1 1 442AABC2 P 6550 2650 F 0 "#PWR" H 6550 2650 30 0001 C C F 1 "GND" H 6550 2580 30 0001 C C 1 6550 2650 1 0 0 -1 $EndComp $Comp L PWR_FLAG #FLG U 1 1 442A8330 P 1600 6900 F 0 "#FLG" H 1600 7170 30 0001 C C F 1 "PWR_FLAG" H 1600 7130 30 0000 C C 1 1600 6900 -1 0 0 1 $EndComp Text Label 8400 4150 0 60 ~ CLOCK-RB6 Text Label 8350 3850 0 60 ~ DATA-RB7 Text Label 8400 3500 0 60 ~ VPP/MCLR $Sheet S 9200 2850 1600 1750 U 47B213F3 F0 "pic_sockets.sch" 60 F1 "pic_sockets.sch" 60 F2 "VPP-MCLR" I L 9200 3500 60 F3 "CLOCK-RB6" I L 9200 4150 60 F4 "DATA-RB7" I L 9200 3850 60 F5 "VCC_PIC" I L 9200 3200 60 $EndSheet Text Label 1850 3800 0 60 ~ DTR Text Label 1850 3700 0 60 ~ CTS Text Label 1850 3600 0 60 ~ TXD Text Label 1850 3500 0 60 ~ RTS Text Notes 850 6500 0 60 ~ 8 to 15V NoConn ~ 6650 6000 $Comp L DIODESCH D U 1 1 442A6026 P 9300 6250 F 0 "D" H 9300 6350 40 0000 C C F 1 "SCHOTTKY" H 9300 6150 40 0000 C C 1 9300 6250 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A5F83 P 8250 6950 F 0 "R" V 8330 6950 50 0000 C C F 1 "5,1K" V 8250 6950 50 0000 C C 1 8250 6950 0 -1 -1 0 $EndComp $Comp L C C U 1 1 442A5F61 P 8750 7150 F 0 "C" H 8800 7250 50 0000 L C F 1 "0" V 8800 7050 50 0000 L C 1 8750 7150 0 -1 -1 0 $EndComp $Comp L LT1373 U U 1 1 442A5E20 P 7650 6250 F 0 "U" H 8250 6750 60 0000 C C F 1 "LT1373" H 7150 6750 60 0000 C C 1 7650 6250 1 0 0 -1 $EndComp Text Notes 6150 5450 0 60 ~ VPP (13V) power $Comp L GND #PWR U 1 1 442A58DF P 10150 7050 F 0 "#PWR" H 10150 7050 30 0001 C C F 1 "GND" H 10150 6980 30 0001 C C 1 10150 7050 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A58DC P 9900 6500 F 0 "R" V 9980 6500 50 0000 C C F 1 "62K" V 9900 6500 50 0000 C C 1 9900 6500 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A58D7 P 9900 7000 F 0 "R" V 9980 7000 50 0000 C C F 1 "6.2K" V 9900 7000 50 0000 C C 1 9900 7000 0 -1 -1 0 $EndComp NoConn ~ 6650 6500 $Comp L GND #PWR U 1 1 442A58B8 P 9150 6850 F 0 "#PWR" H 9150 6850 30 0001 C C F 1 "GND" H 9150 6780 30 0001 C C 1 9150 6850 0 -1 -1 0 $EndComp $Comp L C C U 1 1 442A58B1 P 8900 6850 F 0 "C" H 8950 6950 50 0000 L C F 1 "10nF" V 9050 6700 50 0000 L C 1 8900 6850 0 -1 -1 0 $EndComp $Comp L PWR_FLAG #FLG U 1 1 442A5893 P 9950 6200 F 0 "#FLG" H 9950 6470 30 0001 C C F 1 "PWR_FLAG" H 9950 6430 30 0000 C C 1 9950 6200 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A5882 P 9300 5900 F 0 "#PWR" H 9300 6000 30 0001 C C F 1 "VCC" H 9300 6000 30 0000 C C 1 9300 5900 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A5852 P 10700 6300 F 0 "#PWR" H 10700 6300 30 0001 C C F 1 "GND" H 10700 6230 30 0001 C C 1 10700 6300 1 0 0 -1 $EndComp $Comp L CP C U 1 1 442A584C P 10450 6250 F 0 "C" H 10500 6350 50 0000 L C F 1 "22uF/25V" H 10500 6150 50 0000 L C 1 10450 6250 0 -1 -1 0 $EndComp $Comp L VPP #PWR U 1 1 442A5846 P 10150 6200 F 0 "#PWR" H 10150 6400 40 0001 C C F 1 "VPP" H 10150 6350 40 0000 C C 1 10150 6200 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A580B P 7350 7000 F 0 "#PWR" H 7350 7000 30 0001 C C F 1 "GND" H 7350 6930 30 0001 C C 1 7350 7000 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A57CB P 7650 5500 F 0 "#PWR" H 7650 5600 30 0001 C C F 1 "VCC" H 7650 5600 30 0000 C C 1 7650 5500 1 0 0 -1 $EndComp $Comp L INDUCTOR L U 1 1 442A57BE P 9000 6000 F 0 "L" V 8950 6000 40 0000 C C F 1 "22uH" V 9100 6000 40 0000 C C 1 9000 6000 0 -1 -1 0 $EndComp NoConn ~ 1700 3900 NoConn ~ 1700 3400 NoConn ~ 1700 3300 NoConn ~ 1700 3200 $Comp L GND #PWR U 1 1 442A50C2 P 7050 2350 F 0 "#PWR" H 7050 2350 30 0001 C C F 1 "GND" H 7050 2280 30 0001 C C 1 7050 2350 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A50BF P 7050 2100 F 0 "R" V 7130 2100 50 0000 C C F 1 "22K" V 7050 2100 50 0000 C C 1 7050 2100 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A50B3 P 3400 6600 F 0 "#PWR" H 3400 6700 30 0001 C C F 1 "VCC" H 3400 6700 30 0000 C C 1 3400 6600 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A5095 P 4150 7150 F 0 "#PWR" H 4150 7150 30 0001 C C F 1 "GND" H 4150 7080 30 0001 C C 1 4150 7150 1 0 0 -1 $EndComp $Comp L LED D U 1 1 442A5084 P 4150 6950 F 0 "D" H 4150 7050 50 0000 C C F 1 "GREEN-LED" H 4150 6850 50 0000 C C F 4 "GREEN LED" H 4200 7100 40 0000 C C 1 4150 6950 0 1 1 0 $EndComp $Comp L R R U 1 1 442A5083 P 3850 6650 F 0 "R" V 3930 6650 50 0000 C C F 1 "470" V 3850 6650 50 0000 C C 1 3850 6650 0 -1 -1 0 $EndComp $Comp L GND #PWR U 1 1 442A5057 P 3200 7100 F 0 "#PWR" H 3200 7100 30 0001 C C F 1 "GND" H 3200 7030 30 0001 C C 1 3200 7100 1 0 0 -1 $EndComp $Comp L CP C U 1 1 442A5056 P 3200 6900 F 0 "C" H 3250 7000 50 0000 L C F 1 "100uF" H 3250 6800 50 0000 L C 1 3200 6900 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A5050 P 2700 6950 F 0 "#PWR" H 2700 6950 30 0001 C C F 1 "GND" H 2700 6880 30 0001 C C 1 2700 6950 1 0 0 -1 $EndComp $Comp L 7805 U U 1 1 442A504A P 2700 6700 F 0 "U" H 2850 6504 60 0000 C C F 1 "7805" H 2700 6900 60 0000 C C 1 2700 6700 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A5023 P 1950 7100 F 0 "#PWR" H 1950 7100 30 0001 C C F 1 "GND" H 1950 7030 30 0001 C C 1 1950 7100 1 0 0 -1 $EndComp $Comp L CP C U 1 1 442A501D P 1950 6900 F 0 "C" H 2000 7000 50 0000 L C F 1 "220uF" H 2000 6800 50 0000 L C 1 1950 6900 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A500F P 1400 6900 F 0 "#PWR" H 1400 6900 30 0001 C C F 1 "GND" H 1400 6830 30 0001 C C 1 1400 6900 1 0 0 -1 $EndComp $Comp L DIODE D U 1 1 442A500B P 1650 6650 F 0 "D" H 1650 6750 40 0000 C C F 1 "1N4004" H 1650 6550 40 0000 C C 1 1650 6650 1 0 0 -1 $EndComp $Comp L CONN_2 P U 1 1 442A4FE7 P 1000 6750 F 0 "P" V 950 6750 40 0000 C C F 1 "CONN_2" V 1050 6750 40 0000 C C 1 1000 6750 -1 0 0 1 $EndComp Text Label 7750 1600 0 60 ~ VPP/MCLR $Comp L LED D U 1 1 442A4F5D P 6550 2400 F 0 "D" H 6550 2500 50 0000 C C F 1 "RED-LED" H 6550 2300 50 0000 C C F 4 "Low Current Led" H 6600 2550 40 0000 C C F 5 "RED LED" H 6550 2250 40 0000 C C 1 6550 2400 0 1 1 0 $EndComp $Comp L R R U 1 1 442A4F52 P 6550 1900 F 0 "R" V 6630 1900 50 0000 C C F 1 "2.2K" V 6550 1900 50 0000 C C 1 6550 1900 1 0 0 -1 $EndComp $Comp L VPP #PWR U 1 1 442A4F48 P 6550 1100 F 0 "#PWR" H 6550 1300 40 0001 C C F 1 "VPP" H 6550 1250 40 0000 C C 1 6550 1100 1 0 0 -1 $EndComp $Comp L VPP #PWR U 1 1 442A4F44 P 6100 700 F 0 "#PWR" H 6100 900 40 0001 C C F 1 "VPP" H 6100 850 40 0000 C C 1 6100 700 1 0 0 -1 $EndComp $Comp L PNP Q U 1 1 442A4F30 P 6450 1400 F 0 "Q" H 6600 1400 60 0000 C C F 1 "BC307" H 6354 1550 60 0000 C C 1 6450 1400 1 0 0 1 $EndComp $Comp L R R U 1 1 442A4F2A P 6100 1000 F 0 "R" V 6180 1000 50 0000 C C F 1 "10K" V 6100 1000 50 0000 C C 1 6100 1000 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A4F23 P 5750 1400 F 0 "R" V 5830 1400 50 0000 C C F 1 "22K" V 5750 1400 50 0000 C C 1 5750 1400 0 -1 -1 0 $EndComp $Comp L GND #PWR U 1 1 442A4F1C P 5450 1900 F 0 "#PWR" H 5450 1900 30 0001 C C F 1 "GND" H 5450 1830 30 0001 C C 1 5450 1900 1 0 0 -1 $EndComp Text Label 2300 1700 0 60 ~ VPP_ON Text Label 5500 5100 0 60 ~ CLOCK-RB6 Text Label 5500 3150 0 60 ~ DATA-RB7 $Comp L NPN Q U 1 1 442A4EB9 P 5350 1700 F 0 "Q" H 5500 1700 50 0000 C C F 1 "BC237" H 5252 1850 50 0000 C C 1 5350 1700 1 0 0 -1 $EndComp Text Label 2350 5100 0 60 ~ PC-CLOCK-OUT $Comp L GND #PWR U 1 1 442A4E06 P 1700 4000 F 0 "#PWR" H 1700 4000 30 0001 C C F 1 "GND" H 1700 3930 30 0001 C C 1 1700 4000 0 -1 -1 0 $EndComp Text Label 2700 4200 0 60 ~ PC-DATA-IN Text Label 2500 3150 0 60 ~ PC-DATA-OUT $Comp L GND #PWR U 1 1 442A4DB3 P 2800 2250 F 0 "#PWR" H 2800 2250 30 0001 C C F 1 "GND" H 2800 2180 30 0001 C C 1 2800 2250 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4DAE P 3200 5650 F 0 "#PWR" H 3200 5650 30 0001 C C F 1 "GND" H 3200 5580 30 0001 C C 1 3200 5650 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4DAB P 3200 3700 F 0 "#PWR" H 3200 3700 30 0001 C C F 1 "GND" H 3200 3630 30 0001 C C 1 3200 3700 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A4D92 P 4700 1700 F 0 "R" V 4780 1700 50 0000 C C F 1 "1K" V 4700 1700 50 0000 C C 1 4700 1700 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A4D8D P 5100 5100 F 0 "R" V 5180 5100 50 0000 C C F 1 "470" V 5100 5100 50 0000 C C 1 5100 5100 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A4D85 P 5100 3150 F 0 "R" V 5180 3150 50 0000 C C F 1 "470" V 5100 3150 50 0000 C C 1 5100 3150 0 -1 -1 0 $EndComp $Comp L GND #PWR U 1 1 442A4D75 P 4350 4500 F 0 "#PWR" H 4350 4500 30 0001 C C F 1 "GND" H 4350 4430 30 0001 C C 1 4350 4500 1 0 0 -1 $EndComp $Comp L 74LS125 U U 4 1 442A4D6B P 4350 4200 F 0 "U" H 4350 4300 50 0000 L B F 1 "74HC125" H 4400 4050 40 0000 L T 4 4350 4200 -1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A4D68 P 3850 4650 F 0 "#PWR" H 3850 4750 30 0001 C C F 1 "VCC" H 3850 4750 30 0000 C C 1 3850 4650 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D67 P 3850 5600 F 0 "#PWR" H 3850 5600 30 0001 C C F 1 "GND" H 3850 5530 30 0001 C C 1 3850 5600 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D66 P 4350 5400 F 0 "#PWR" H 4350 5400 30 0001 C C F 1 "GND" H 4350 5330 30 0001 C C 1 4350 5400 1 0 0 -1 $EndComp $Comp L DIODESCH D U 1 1 442A4D65 P 3850 5400 F 0 "D" H 3850 5500 40 0000 C C F 1 "BAT43" H 3850 5300 40 0000 C C 1 3850 5400 0 -1 -1 0 $EndComp $Comp L DIODESCH D U 1 1 442A4D64 P 3850 4850 F 0 "D" H 3850 4950 40 0000 C C F 1 "BAT43" H 3850 4750 40 0000 C C 1 3850 4850 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A4D63 P 3200 5400 F 0 "R" V 3280 5400 50 0000 C C F 1 "10K" V 3200 5400 50 0000 C C 1 3200 5400 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A4D62 P 3500 5100 F 0 "R" V 3580 5100 50 0000 C C F 1 "10K" V 3500 5100 50 0000 C C 1 3500 5100 0 -1 -1 0 $EndComp $Comp L 74LS125 U U 3 1 442A4D61 P 4350 5100 F 0 "U" H 4350 5200 50 0000 L B F 1 "74HC125" H 4400 4950 40 0000 L T 3 4350 5100 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A4D60 P 3850 2700 F 0 "#PWR" H 3850 2800 30 0001 C C F 1 "VCC" H 3850 2800 30 0000 C C 1 3850 2700 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D5F P 3850 3650 F 0 "#PWR" H 3850 3650 30 0001 C C F 1 "GND" H 3850 3580 30 0001 C C 1 3850 3650 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D5E P 4350 3450 F 0 "#PWR" H 4350 3450 30 0001 C C F 1 "GND" H 4350 3380 30 0001 C C 1 4350 3450 1 0 0 -1 $EndComp $Comp L DIODESCH D U 1 1 442A4D5D P 3850 3450 F 0 "D" H 3850 3550 40 0000 C C F 1 "BAT43" H 3850 3350 40 0000 C C 1 3850 3450 0 -1 -1 0 $EndComp $Comp L DIODESCH D U 1 1 442A4D5C P 3850 2900 F 0 "D" H 3850 3000 40 0000 C C F 1 "BAT43" H 3850 2800 40 0000 C C 1 3850 2900 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A4D5B P 3200 3450 F 0 "R" V 3280 3450 50 0000 C C F 1 "10K" V 3200 3450 50 0000 C C 1 3200 3450 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A4D5A P 3500 3150 F 0 "R" V 3580 3150 50 0000 C C F 1 "10K" V 3500 3150 50 0000 C C 1 3500 3150 0 -1 -1 0 $EndComp $Comp L 74LS125 U U 2 1 442A4D59 P 4350 3150 F 0 "U" H 4350 3250 50 0000 L B F 1 "74HC125" H 4400 3000 40 0000 L T 2 4350 3150 1 0 0 -1 $EndComp $Comp L VCC #PWR U 1 1 442A4D41 P 3450 1250 F 0 "#PWR" H 3450 1350 30 0001 C C F 1 "VCC" H 3450 1350 30 0000 C C 1 3450 1250 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D3B P 3450 2200 F 0 "#PWR" H 3450 2200 30 0001 C C F 1 "GND" H 3450 2130 30 0001 C C 1 3450 2200 1 0 0 -1 $EndComp $Comp L GND #PWR U 1 1 442A4D38 P 3950 2000 F 0 "#PWR" H 3950 2000 30 0001 C C F 1 "GND" H 3950 1930 30 0001 C C 1 3950 2000 1 0 0 -1 $EndComp $Comp L DIODESCH D U 1 1 442A4D25 P 3450 2000 F 0 "D" H 3450 2100 40 0000 C C F 1 "BAT43" H 3450 1900 40 0000 C C 1 3450 2000 0 -1 -1 0 $EndComp $Comp L DIODESCH D U 1 1 442A4D1B P 3450 1450 F 0 "D" H 3450 1550 40 0000 C C F 1 "BAT43" H 3450 1350 40 0000 C C 1 3450 1450 0 -1 -1 0 $EndComp $Comp L R R U 1 1 442A4CFB P 2800 2000 F 0 "R" V 2880 2000 50 0000 C C F 1 "10K" V 2800 2000 50 0000 C C 1 2800 2000 1 0 0 -1 $EndComp $Comp L R R U 1 1 442A4CF4 P 3100 1700 F 0 "R" V 3180 1700 50 0000 C C F 1 "10K" V 3100 1700 50 0000 C C 1 3100 1700 0 -1 -1 0 $EndComp $Comp L 74LS125 U U 1 1 442A4CC8 P 3950 1700 F 0 "U" H 3950 1800 50 0000 L B F 1 "74HC125" H 4000 1550 40 0000 L T 1 3950 1700 1 0 0 -1 $EndComp $Comp L DB9 J U 1 1 442A4C93 P 1250 3600 F 0 "J" H 1250 4150 70 0000 C C F 1 "DB9-FEMAL" H 1250 3050 70 0000 C C 1 1250 3600 -1 0 0 1 $EndComp $EndSCHEMATC