EESchema Schematic File Version 2 LIBS:power LIBS:device 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:analog_devices LIBS:switches LIBS:Oscillators LIBS:Reset circuit-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 Text GLabel 10250 3250 0 60 Input ~ 0 GND Text GLabel 10250 3350 0 60 Input ~ 0 VCC Text GLabel 10250 3550 0 60 Input ~ 0 RESET $Comp L NE555 U1 U 1 1 590A44E3 P 7100 3375 F 0 "U1" H 6700 3725 50 0000 L CNN F 1 "NE555" H 6700 3025 50 0000 L CNN F 2 "Housings_DIP:DIP-8_W7.62mm" H 7100 3375 50 0001 C CNN F 3 "" H 7100 3375 50 0001 C CNN 1 7100 3375 1 0 0 -1 $EndComp Text GLabel 7100 2525 1 60 Input ~ 0 VCC Text GLabel 7100 4250 3 60 Input ~ 0 GND $Comp L R R1 U 1 1 5909CC66 P 6100 2925 F 0 "R1" V 6025 2925 50 0000 C CNN F 1 "1M" V 6100 2925 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 6030 2925 50 0001 C CNN F 3 "" H 6100 2925 50 0001 C CNN 1 6100 2925 1 0 0 -1 $EndComp $Comp L C C1 U 1 1 5909CD8B P 6100 3825 F 0 "C1" H 6125 3925 50 0000 L CNN F 1 "100nF" H 6125 3725 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 6138 3675 50 0001 C CNN F 3 "" H 6100 3825 50 0001 C CNN 1 6100 3825 1 0 0 -1 $EndComp $Comp L C C3 U 1 1 5909D33C P 8400 3225 F 0 "C3" H 8425 3325 50 0000 L CNN F 1 "100nF" H 8425 3125 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 8438 3075 50 0001 C CNN F 3 "" H 8400 3225 50 0001 C CNN 1 8400 3225 1 0 0 -1 $EndComp $Comp L R R2 U 1 1 5909D4EB P 8025 3225 F 0 "R2" V 7950 3225 50 0000 C CNN F 1 "47k" V 8025 3225 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 7955 3225 50 0001 C CNN F 3 "" H 8025 3225 50 0001 C CNN 1 8025 3225 1 0 0 -1 $EndComp $Comp L CP C2 U 1 1 5909D5AC P 8025 3800 F 0 "C2" H 8050 3900 50 0000 L CNN F 1 "10uF" H 8050 3700 50 0000 L CNN F 2 "Capacitors_THT:CP_Radial_D4.0mm_P2.00mm" H 8063 3650 50 0001 C CNN F 3 "" H 8025 3800 50 0001 C CNN 1 8025 3800 1 0 0 -1 $EndComp $Comp L 74LS04 U2 U 1 1 5909E441 P 8175 1800 F 0 "U2" H 8370 1915 50 0000 C CNN F 1 "74LS04" H 8365 1675 50 0000 C CNN F 2 "Housings_DIP:DIP-14_W7.62mm" H 8175 1800 50 0001 C CNN F 3 "" H 8175 1800 50 0001 C CNN 1 8175 1800 1 0 0 -1 $EndComp Text GLabel 8775 1800 2 60 Input ~ 0 RESET $Comp L SW_SPST SW1 U 1 1 5909ECDD P 5650 3650 F 0 "SW1" H 5650 3775 50 0000 C CNN F 1 "RESET" H 5650 3550 50 0000 C CNN F 2 "Buttons_Switches_THT:SW_PUSH_6mm" H 5650 3650 50 0001 C CNN F 3 "" H 5650 3650 50 0001 C CNN 1 5650 3650 0 -1 -1 0 $EndComp NoConn ~ 6600 3375 NoConn ~ 10250 1650 NoConn ~ 10250 1750 NoConn ~ 10250 1850 NoConn ~ 10250 1950 NoConn ~ 10250 2050 NoConn ~ 10250 2150 NoConn ~ 10250 2250 NoConn ~ 10250 2350 NoConn ~ 10250 2450 NoConn ~ 10250 2550 NoConn ~ 10250 2650 NoConn ~ 10250 2750 NoConn ~ 10250 2850 NoConn ~ 10250 2950 NoConn ~ 10250 3050 NoConn ~ 10250 3150 NoConn ~ 10250 3450 NoConn ~ 10250 3750 NoConn ~ 10250 3850 NoConn ~ 10250 3950 NoConn ~ 10250 4050 NoConn ~ 10250 4150 NoConn ~ 10250 4250 NoConn ~ 10250 4350 NoConn ~ 10250 4450 NoConn ~ 10250 4550 NoConn ~ 10250 4650 NoConn ~ 10250 4750 NoConn ~ 10250 4850 NoConn ~ 10250 4950 NoConn ~ 10250 5050 NoConn ~ 10250 5150 NoConn ~ 10250 5250 NoConn ~ 10250 5350 NoConn ~ 10250 5450 $Comp L R R3 U 1 1 590A060A P 8400 2275 F 0 "R3" V 8480 2275 50 0000 C CNN F 1 "1k" V 8400 2275 50 0000 C CNN F 2 "Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal" V 8330 2275 50 0001 C CNN F 3 "" H 8400 2275 50 0001 C CNN 1 8400 2275 1 0 0 -1 $EndComp $Comp L ACO-xxxMHz X1 U 1 1 590A1756 P 4275 3400 F 0 "X1" H 4075 3650 50 0000 L CNN F 1 "1MHz" H 4325 3150 50 0000 L CNN F 2 "Oscillators:Oscillator_DIP-14" H 4725 3050 50 0001 C CNN F 3 "" H 4175 3400 50 0001 C CNN 1 4275 3400 1 0 0 -1 $EndComp $Comp L CONN_01X02 J2 U 1 1 590A1B9F P 5000 2850 F 0 "J2" H 5000 3000 50 0000 C CNN F 1 "XTAL Enable" V 5100 2850 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x02_Pitch2.54mm" H 5000 2850 50 0001 C CNN F 3 "" H 5000 2850 50 0001 C CNN 1 5000 2850 0 1 1 0 $EndComp Text GLabel 4575 3400 2 60 Input ~ 0 CLOCK Text GLabel 10250 3650 0 60 Input ~ 0 CLOCK Wire Wire Line 7100 2525 7100 2975 Wire Wire Line 7100 3775 7100 4250 Wire Wire Line 6100 2775 6100 2650 Connection ~ 7100 2650 Wire Wire Line 5650 3175 6600 3175 Wire Wire Line 6100 4150 6100 3975 Connection ~ 7100 4150 Connection ~ 6100 3175 Wire Wire Line 6100 3075 6100 3675 Connection ~ 6100 4150 Wire Wire Line 6600 3575 6450 3575 Wire Wire Line 6450 3575 6450 2650 Connection ~ 6450 2650 Wire Wire Line 8400 2650 8400 3075 Wire Wire Line 8400 4150 8400 3375 Wire Wire Line 8025 2450 8025 3075 Connection ~ 8025 2650 Wire Wire Line 8025 4150 8025 3950 Connection ~ 8025 4150 Wire Wire Line 8025 3375 8025 3650 Wire Wire Line 7600 3375 7800 3375 Wire Wire Line 4275 4150 8400 4150 Wire Wire Line 7800 3375 7800 3575 Wire Wire Line 7800 3450 8025 3450 Connection ~ 8025 3450 Wire Wire Line 7800 3575 7600 3575 Connection ~ 7800 3450 Wire Wire Line 7725 3175 7600 3175 Wire Wire Line 7725 1800 7725 3175 Wire Wire Line 5650 3175 5650 3450 Wire Wire Line 5650 3850 5650 4150 Wire Wire Line 8400 2025 8625 2025 Wire Wire Line 8400 2025 8400 2125 Wire Wire Line 8400 2450 8025 2450 Wire Wire Line 8400 2425 8400 2450 Wire Wire Line 8625 2025 8625 1800 Wire Wire Line 8625 1800 8775 1800 Wire Wire Line 4275 3700 4275 4150 Connection ~ 5650 4150 Connection ~ 6100 2650 Wire Wire Line 5050 2650 8400 2650 Wire Wire Line 4950 2650 4275 2650 Wire Wire Line 4275 2650 4275 3100 $Comp L CONN_01X39 J1 U 1 1 590BF97A P 10450 3550 F 0 "J1" H 10450 5550 50 0000 C CNN F 1 "CONN_01X39" V 10550 3550 50 0000 C CNN F 2 "Pin_Headers:Pin_Header_Angled_1x39_Pitch2.54mm" H 10450 3550 50 0001 C CNN F 3 "" H 10450 3550 50 0001 C CNN 1 10450 3550 1 0 0 -1 $EndComp Text GLabel 1100 1850 3 60 Output ~ 0 GND Text GLabel 1100 1100 1 60 Input ~ 0 VCC $Comp L C C4 U 1 1 591A9FB0 P 1100 1475 F 0 "C4" H 1125 1575 50 0000 L CNN F 1 "100nF" H 1125 1375 50 0000 L CNN F 2 "Capacitors_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm" H 1138 1325 50 0001 C CNN F 3 "" H 1100 1475 50 0001 C CNN 1 1100 1475 1 0 0 -1 $EndComp Wire Wire Line 1100 1325 1100 1100 Wire Wire Line 1100 1625 1100 1850 $EndSCHEMATC