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:max485 LIBS:rv3029c2 LIBS:pilc-cache EELAYER 25 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 2 4 Title "PiLC HAT - RTC" Date "" Rev "0.1" Comp "Michael Buesch " Comment1 "" Comment2 "" Comment3 "" Comment4 "" $EndDescr $Comp L RV-3029-C2 U1 U 1 1 56AD3564 P 5700 3600 F 0 "U1" H 5700 4200 60 0000 C CNN F 1 "RV-3029-C2" H 5700 3000 60 0000 C CNN F 2 "" H 5700 3150 60 0000 C CNN F 3 "" H 5700 3150 60 0000 C CNN 1 5700 3600 1 0 0 -1 $EndComp NoConn ~ 5050 3450 $Comp L +3V3 #PWR28 U 1 1 56AD3774 P 4850 3300 F 0 "#PWR28" H 4850 3150 50 0001 C CNN F 1 "+3V3" H 4850 3440 50 0000 C CNN F 2 "" H 4850 3300 60 0000 C CNN F 3 "" H 4850 3300 60 0000 C CNN 1 4850 3300 0 -1 -1 0 $EndComp $Comp L GND #PWR30 U 1 1 56AD378C P 6450 3900 F 0 "#PWR30" H 6450 3650 50 0001 C CNN F 1 "GND" H 6450 3750 50 0000 C CNN F 2 "" H 6450 3900 60 0000 C CNN F 3 "" H 6450 3900 60 0000 C CNN 1 6450 3900 0 -1 -1 0 $EndComp Wire Wire Line 6350 3900 6450 3900 Wire Wire Line 4850 3300 5050 3300 NoConn ~ 6350 3750 NoConn ~ 6350 3300 $Comp L R R7 U 1 1 56AD3A9C P 6950 3600 F 0 "R7" V 7030 3600 50 0000 C CNN F 1 "100" V 6950 3600 50 0000 C CNN F 2 "" V 6880 3600 30 0000 C CNN F 3 "" H 6950 3600 30 0000 C CNN 1 6950 3600 0 1 1 0 $EndComp Wire Wire Line 7100 3600 7300 3600 Wire Wire Line 6350 3600 6800 3600 $Comp L ZENER D2 U 1 1 56AD3B30 P 7450 3950 F 0 "D2" H 7450 4050 50 0000 C CNN F 1 "5.1V" H 7450 3850 50 0000 C CNN F 2 "" H 7450 3950 60 0000 C CNN F 3 "" H 7450 3950 60 0000 C CNN 1 7450 3950 1 0 0 -1 $EndComp $Comp L CP C5 U 1 1 56AD3B8F P 7450 3600 F 0 "C5" H 7475 3700 50 0000 L CNN F 1 "1F 5.5V" H 7475 3500 50 0000 L CNN F 2 "" H 7488 3450 30 0000 C CNN F 3 "" H 7450 3600 60 0000 C CNN 1 7450 3600 0 -1 -1 0 $EndComp Wire Wire Line 7200 3600 7200 3950 Wire Wire Line 7200 3950 7250 3950 Connection ~ 7200 3600 Wire Wire Line 7650 3950 7700 3950 Wire Wire Line 7700 3950 7700 3600 Wire Wire Line 7600 3600 7800 3600 $Comp L GND #PWR31 U 1 1 56AD3CCC P 7800 3600 F 0 "#PWR31" H 7800 3350 50 0001 C CNN F 1 "GND" H 7800 3450 50 0000 C CNN F 2 "" H 7800 3600 60 0000 C CNN F 3 "" H 7800 3600 60 0000 C CNN 1 7800 3600 0 -1 -1 0 $EndComp Connection ~ 7700 3600 Text HLabel 2350 3750 0 60 Input ~ 0 SCL Text HLabel 2350 3900 0 60 Input ~ 0 SDA Wire Wire Line 2350 3750 5050 3750 Wire Wire Line 2350 3900 5050 3900 $Comp L C_Small C4 U 1 1 56C07294 P 4950 2950 F 0 "C4" H 4960 3020 50 0000 L CNN F 1 "100n" H 4960 2870 50 0000 L CNN F 2 "" H 4950 2950 50 0000 C CNN F 3 "" H 4950 2950 50 0000 C CNN 1 4950 2950 1 0 0 -1 $EndComp Wire Wire Line 4950 3050 4950 3300 Connection ~ 4950 3300 $Comp L GND #PWR29 U 1 1 56C0744F P 4950 2750 F 0 "#PWR29" H 4950 2500 50 0001 C CNN F 1 "GND" H 4950 2600 50 0000 C CNN F 2 "" H 4950 2750 50 0000 C CNN F 3 "" H 4950 2750 50 0000 C CNN 1 4950 2750 -1 0 0 1 $EndComp Wire Wire Line 4950 2750 4950 2850 $EndSCHEMATC