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EESchema Schematic File Version 2
LIBS:power
LIBS:device
LIBS:transistors
LIBS:conn
LIBS:linear
LIBS:regul
LIBS:cmos4000
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:special
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
EELAYER 27 0
EELAYER END
$Descr B 17000 11000
encoding utf-8
Sheet 10 27
Title "rev02_08"
Date "15 10 2016"
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text Notes 7546 5126 0 60 ~ 12
CL 12.5 pF
Text Notes 9680 5720 0 60 ~ 12
MFP is Multi Function Pin.\nGPIO output from RTC.
Text Notes 9240 3960 0 60 ~ 12
i2c pull-ups, typically 10K for 100kHz
Text Notes 6820 2640 0 126 ~ 12
Real Time Clock
Text Notes 15103 10142 0 84 ~ 12
Real Time Clock
Text Notes 8360 4466 0 60 ~ 12
U7
Text Label 7513 5720 0 70 ~
5pF
Text Label 6336 5742 0 70 ~
5pF
Text Notes 6864 6204 0 60 ~ 12
X1
Text Label 10780 4609 0 70 ~
10k
Text Label 10780 4499 0 70 ~
10k
Text Label 10791 4389 0 70 ~
10k
$Comp
L GND #PWR?58024027
U 1 1 58024027
P 7920 5940
F 0 "GND_46" H 7920 5940 20 0000 C CNN
F 1 "+GND" H 7920 5870 30 0000 C CNN
F 2 "" H 7920 5940 70 0000 C CNN
F 3 "" H 7920 5940 70 0000 C CNN
1 7920 5940
1 0 0 -1
$EndComp
$Comp
L 3V3_BATT #PWR?58024026
U 1 1 58024026
P 7590 4180
F 0 "3V3_BATT_2" H 7590 4180 20 0000 C CNN
F 1 "+3V3_BATT" H 7590 4110 30 0000 C CNN
F 2 "" H 7590 4180 70 0000 C CNN
F 3 "" H 7590 4180 70 0000 C CNN
1 7590 4180
1 0 0 -1
$EndComp
$Comp
L VCCO_3V3 #PWR?58024025
U 1 1 58024025
P 8140 4180
F 0 "VCCO_3V3_15" H 8140 4180 20 0000 C CNN
F 1 "+VCCO_3V3" H 8140 4110 30 0000 C CNN
F 2 "" H 8140 4180 70 0000 C CNN
F 3 "" H 8140 4180 70 0000 C CNN
1 8140 4180
1 0 0 -1
$EndComp
$Comp
L GND #PWR?58024024
U 1 1 58024024
P 6710 5940
F 0 "GND_47" H 6710 5940 20 0000 C CNN
F 1 "+GND" H 6710 5870 30 0000 C CNN
F 2 "" H 6710 5940 70 0000 C CNN
F 3 "" H 6710 5940 70 0000 C CNN
1 6710 5940
1 0 0 -1
$EndComp
$Comp
L GND #PWR?58024023
U 1 1 58024023
P 7370 5940
F 0 "GND_48" H 7370 5940 20 0000 C CNN
F 1 "+GND" H 7370 5870 30 0000 C CNN
F 2 "" H 7370 5940 70 0000 C CNN
F 3 "" H 7370 5940 70 0000 C CNN
1 7370 5940
1 0 0 -1
$EndComp
Wire Wire Line
7590 4180 7590 4950
Wire Wire Line
8140 4950 7590 4950
Wire Wire Line
8140 5500 7920 5500
Wire Wire Line
7920 5500 7920 5940
Wire Wire Line
7370 5830 7370 5940
Wire Wire Line
6710 5830 6710 5940
Wire Wire Line
8140 4180 8140 4840
Wire Wire Line
6820 5500 6710 5500
Wire Wire Line
8140 5170 6710 5170
Wire Wire Line
6710 5170 6710 5500
Connection ~ 6710 5500
Wire Wire Line
7370 5500 7260 5500
Wire Wire Line
8140 5280 7370 5280
Wire Wire Line
7370 5280 7370 5500
Connection ~ 7370 5500
Wire Wire Line
10230 4950 9460 4950
Wire Wire Line
10450 4950 10230 4950
Wire Wire Line
10230 4840 10230 4950
Text Label 10450 4950 0 70 ~
RTC_MFP
Connection ~ 10230 4950
Wire Wire Line
10010 5060 9460 5060
Wire Wire Line
10450 5060 10010 5060
Wire Wire Line
10010 4840 10010 5060
Text Label 10450 5060 0 70 ~
RTC_SCL
Connection ~ 10010 5060
Wire Wire Line
9790 5170 9460 5170
Wire Wire Line
10450 5170 9790 5170
Wire Wire Line
9790 4840 9790 5170
Text Label 10450 5170 0 70 ~
RTC_SDA
Connection ~ 9790 5170
Wire Wire Line
10010 4180 10010 4290
Wire Wire Line
10010 4290 10010 4400
Wire Wire Line
9790 4290 9790 4400
Wire Wire Line
10010 4290 9790 4290
Wire Wire Line
10230 4290 10010 4290
Wire Wire Line
10230 4290 10230 4400
Connection ~ 10010 4290
$Comp
L VCCO_3V3 #PWR?58024022
U 1 1 58024022
P 10010 4180
F 0 "VCCO_3V3_16" H 10010 4180 20 0000 C CNN
F 1 "+VCCO_3V3" H 10010 4110 30 0000 C CNN
F 2 "" H 10010 4180 70 0000 C CNN
F 3 "" H 10010 4180 70 0000 C CNN
1 10010 4180
1 0 0 -1
$EndComp
$Comp
L MCP79412-I/SN IC117
U 1 1 58024021
F 1 "MCP79412-I/SN" H 8338 5533 60 0000 L BNN
F 2 "" H 8338 5533 60 0000 C CNN
F 3 "" H 8338 5533 60 0000 C CNN
1 8800 5060
1 0 0 -1
$EndComp
$Comp
L C-EUC0402 C71
U 1 1 58024020
F 0 "C71" H 7227 5621 60 0000 R TNN
1 7370 5720
-1 0 0 1
$EndComp
$Comp
L C-EUC0402 C70
U 1 1 5802401F
F 0 "C70" H 7084 5632 60 0000 R TNN
1 6710 5720
-1 0 0 1
$EndComp
$Comp
L XTAL-3.2X1.5 IC120
U 1 1 5802401E
F 1 "ABS07-32.768KHZ-T" H 6853 4675 60 0000 L BNN
F 2 "" H 6853 4675 60 0000 C CNN
F 3 "" H 6853 4675 60 0000 C CNN
1 7040 5500
1 0 0 -1
$EndComp
$Comp
L R-EU_R0402 R21
U 1 1 5802401D
F 0 "R21" V 10230 4950 60 0000 L BNN
F 1 "" V 10340 4950 60 0000 L BNN
F 2 "" H 10340 4950 60 0000 C CNN
F 3 "" H 10340 4950 60 0000 C CNN
1 10230 4620
0 1 1 0
$EndComp
$Comp
L R-EU_R0402 R20
U 1 1 5802401C
F 0 "R20" V 9900 5170 60 0000 L BNN
1 10010 4620
0 1 1 0
$EndComp
$Comp
L R-EU_R0402 R19
U 1 1 5802401B
F 0 "R19" V 9570 5390 60 0000 L BNN
1 9790 4620
0 1 1 0
$EndComp
$EndSCHEMATC
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