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SapphireMini_DS3231.sch
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SapphireMini_DS3231.sch
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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 6 7
Title "Sapphire Mini"
Date ""
Rev ""
Comp "Southern Methodist Univ"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Device:C_Small C602
U 1 1 5E4584BC
P 7050 2650
F 0 "C602" H 7142 2696 50 0000 L CNN
F 1 "1uF" H 7142 2605 50 0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7050 2650 50 0001 C CNN
F 3 "~" H 7050 2650 50 0001 C CNN
F 4 "0.06" H 7050 2650 50 0001 C CNN "DigiKey Price"
F 5 "CL21B105KOFNNNG" H 7050 2650 50 0001 C CNN "MPN"
F 6 "Samsung" H 7050 2650 50 0001 C CNN "Manufacturer"
F 7 "10%" H 7050 2650 50 0001 C CNN "Tolerance"
F 8 " " H 7050 2650 50 0001 C CNN "Type"
F 9 "16" H 7050 2650 50 0001 C CNN "Voltage"
F 10 "1" H 7050 2650 50 0001 C CNN "Populate"
F 11 "MF-CAP-0805-1uF" H 7050 2650 50 0001 C CNN "MacroFab_PN"
F 12 "1276-6471-1-ND " H 7050 2650 50 0001 C CNN "Digi-Key_PN"
F 13 "Digikey" H 7050 2650 50 0001 C CNN "Distributor"
F 14 "1276-6471-1-ND " H 7050 2650 50 0001 C CNN "DPN"
F 15 "1 µF ±10% 16V Ceramic Capacitor X7R 0805 " H 7050 2650 50 0001 C CNN "Description"
1 7050 2650
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0605
U 1 1 5E458DE8
P 7050 2850
F 0 "#PWR0605" H 7050 2600 50 0001 C CNN
F 1 "GND" H 7055 2677 50 0000 C CNN
F 2 "" H 7050 2850 50 0001 C CNN
F 3 "" H 7050 2850 50 0001 C CNN
1 7050 2850
1 0 0 -1
$EndComp
$Comp
L Device:R_Small_US R602
U 1 1 5E4593BF
P 4800 2800
F 0 "R602" H 4868 2846 50 0000 L CNN
F 1 "4K75" H 4868 2755 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 4800 2800 50 0001 C CNN
F 3 "~" H 4800 2800 50 0001 C CNN
F 4 "0.05" H 4800 2800 50 0001 C CNN "DigiKey Price"
F 5 "Vishay" H 4800 2800 50 0001 C CNN "Manufacturer"
F 6 "CRCW06034K75FKEAC" H 4800 2800 50 0001 C CNN "MPN"
F 7 "5%" H 4800 2800 50 0001 C CNN "Tolerance"
F 8 "1" H 4800 2800 50 0001 C CNN "Populate"
F 9 "MF-RES-0603-4.7K" H 4800 2800 50 0001 C CNN "MacroFab_PN"
F 10 "541-3984-1-ND" H 4800 2800 50 0001 C CNN "Digi-Key_PN"
F 11 "Digikey" H 4800 2800 50 0001 C CNN "Distributor"
F 12 "541-3984-1-ND " H 4800 2800 50 0001 C CNN "DPN"
F 13 "4.75 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603" H 4800 2800 50 0001 C CNN "Description"
1 4800 2800
1 0 0 -1
$EndComp
$Comp
L Device:R_Small_US R601
U 1 1 5E459D5A
P 4300 2800
F 0 "R601" H 4368 2846 50 0000 L CNN
F 1 "4K75" H 4368 2755 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 4300 2800 50 0001 C CNN
F 3 "~" H 4300 2800 50 0001 C CNN
F 4 "0.05" H 4300 2800 50 0001 C CNN "DigiKey Price"
F 5 "Vishay" H 4300 2800 50 0001 C CNN "Manufacturer"
F 6 "CRCW06034K75FKEAC" H 4300 2800 50 0001 C CNN "MPN"
F 7 "5%" H 4300 2800 50 0001 C CNN "Tolerance"
F 8 "1" H 4300 2800 50 0001 C CNN "Populate"
F 9 "MF-RES-0603-4.7K" H 4300 2800 50 0001 C CNN "MacroFab_PN"
F 10 "541-3984-1-ND" H 4300 2800 50 0001 C CNN "Digi-Key_PN"
F 11 "Digikey" H 4300 2800 50 0001 C CNN "Distributor"
F 12 "541-3984-1-ND " H 4300 2800 50 0001 C CNN "DPN"
F 13 "4.75 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603" H 4300 2800 50 0001 C CNN "Description"
1 4300 2800
1 0 0 -1
$EndComp
Wire Wire Line
5400 2900 5400 2350
Wire Wire Line
5400 2350 6050 2350
Wire Wire Line
7050 2350 7050 2550
Wire Wire Line
7050 2750 7050 2850
Connection ~ 5400 2350
$Comp
L Device:R_Small_US R603
U 1 1 5E45B03D
P 6050 2700
F 0 "R603" H 6118 2746 50 0000 L CNN
F 1 "47K5" H 6118 2655 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6050 2700 50 0001 C CNN
F 3 "~" H 6050 2700 50 0001 C CNN
F 4 "0.10" H 6050 2700 50 0001 C CNN "DigiKey Price"
F 5 "Vishay" H 6050 2700 50 0001 C CNN "Manufacturer"
F 6 "CRCW060347K5FKEAC" H 6050 2700 50 0001 C CNN "MPN"
F 7 "1%" H 6050 2700 50 0001 C CNN "Tolerance"
F 8 "1" H 6050 2700 50 0001 C CNN "Populate"
F 9 "CRCW060347K5FKEAC" H 6050 2700 50 0001 C CNN "MacroFab_PN"
F 10 "541-4050-1-ND" H 6050 2700 50 0001 C CNN "Digi-Key_PN"
F 11 "Digikey" H 6050 2700 50 0001 C CNN "Distributor"
F 12 "541-4050-1-ND" H 6050 2700 50 0001 C CNN "DPN"
F 13 "47.5 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603" H 6050 2700 50 0001 C CNN "Description"
1 6050 2700
1 0 0 -1
$EndComp
Wire Wire Line
6050 2600 6050 2350
Connection ~ 6050 2350
Wire Wire Line
6000 3100 6050 3100
Wire Wire Line
6050 3100 6050 2800
Text HLabel 7050 3100 2 50 Output ~ 0
32KHz
Wire Wire Line
6050 3100 7050 3100
Connection ~ 6050 3100
Text HLabel 7050 3400 2 50 Output ~ 0
SQW
$Comp
L power:GND #PWR0601
U 1 1 5E461181
P 3700 4400
F 0 "#PWR0601" H 3700 4150 50 0001 C CNN
F 1 "GND" H 3705 4227 50 0000 C CNN
F 2 "" H 3700 4400 50 0001 C CNN
F 3 "" H 3700 4400 50 0001 C CNN
1 3700 4400
1 0 0 -1
$EndComp
Text HLabel 3700 3500 0 50 Output ~ 0
RESET
$Comp
L power:GND #PWR0603
U 1 1 5E46312F
P 5750 2700
F 0 "#PWR0603" H 5750 2450 50 0001 C CNN
F 1 "GND" H 5755 2527 50 0000 C CNN
F 2 "" H 5750 2700 50 0001 C CNN
F 3 "" H 5750 2700 50 0001 C CNN
1 5750 2700
1 0 0 -1
$EndComp
Wire Wire Line
5500 2900 5500 2600
Wire Wire Line
5500 2600 5550 2550
Wire Wire Line
5550 2550 5700 2550
Wire Wire Line
5700 2550 5750 2600
Wire Wire Line
5750 2600 5750 2700
Connection ~ 4950 3900
Wire Wire Line
3300 2350 4300 2350
Wire Wire Line
4300 2700 4300 2350
Connection ~ 4300 2350
Wire Wire Line
4300 2350 4800 2350
Wire Wire Line
4800 2700 4800 2350
Connection ~ 4800 2350
Wire Wire Line
4800 2350 5400 2350
Wire Wire Line
6050 2350 6400 2350
Wire Wire Line
6000 3400 6400 3400
Text HLabel 3300 2350 0 50 Input ~ 0
P3V3
$Comp
L Device:C_Small C601
U 1 1 5E6F6687
P 6600 2650
F 0 "C601" H 6692 2696 50 0000 L CNN
F 1 "100nF" H 6692 2605 50 0000 L CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 6600 2650 50 0001 C CNN
F 3 "~" H 6600 2650 50 0001 C CNN
F 4 "0.10" H 6600 2650 50 0001 C CNN "DigiKey Price"
F 5 "CL10B104KA8NNNC" H 6600 2650 50 0001 C CNN "MPN"
F 6 "Samsung" H 6600 2650 50 0001 C CNN "Manufacturer"
F 7 "10%" H 6600 2650 50 0001 C CNN "Tolerance"
F 8 "25" H 6600 2650 50 0001 C CNN "Voltage"
F 9 "25 volt" H 6600 2650 50 0001 C CNN "Voltage Rating (DC)"
F 10 "1" H 6600 2650 50 0001 C CNN "Populate"
F 11 "MF-CAP-0603-0.1uF" H 6600 2650 50 0001 C CNN "MacroFab_PN"
F 12 "1276-1006-1-ND " H 6600 2650 50 0001 C CNN "Digi-Key_PN"
F 13 "Digikey" H 6600 2650 50 0001 C CNN "Distributor"
F 14 "1276-1006-1-ND " H 6600 2650 50 0001 C CNN "DPN"
F 15 "0.1 µF ±10% 25V Ceramic Capacitor X7R 0603 (1608 Metric)" H 6600 2650 50 0001 C CNN "Description"
1 6600 2650
1 0 0 -1
$EndComp
Wire Wire Line
6600 2550 6600 2350
Connection ~ 6600 2350
Wire Wire Line
6600 2350 7050 2350
$Comp
L power:GND #PWR0604
U 1 1 5E6F70E9
P 6600 2850
F 0 "#PWR0604" H 6600 2600 50 0001 C CNN
F 1 "GND" H 6605 2677 50 0000 C CNN
F 2 "" H 6600 2850 50 0001 C CNN
F 3 "" H 6600 2850 50 0001 C CNN
1 6600 2850
1 0 0 -1
$EndComp
Wire Wire Line
6600 2850 6600 2750
Text HLabel 3900 3200 0 50 BiDi ~ 0
I2C_SDA
Text HLabel 3900 3100 0 50 BiDi ~ 0
I2C_SCL
Wire Wire Line
4800 2900 4800 3100
Wire Wire Line
4800 3100 5000 3100
Wire Wire Line
4300 2900 4300 3200
Wire Wire Line
4300 3200 5000 3200
Wire Wire Line
4800 3100 3900 3100
Connection ~ 4800 3100
Wire Wire Line
4300 3200 3900 3200
Connection ~ 4300 3200
$Comp
L sapphireMini:DS3231S U601
U 1 1 5E3F8A74
P 5500 3300
F 0 "U601" H 5300 2800 50 0000 C CNN
F 1 "DS3231SN" H 5350 2700 50 0000 C CNN
F 2 "Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm" H 5500 2700 50 0001 C CNN
F 3 "http://datasheets.maximintegrated.com/en/ds/DS3231.pdf" H 5770 3350 50 0001 C CNN
F 4 "DS3231SN#T&R" H 5500 3300 50 0001 C CNN "MPN"
F 5 "Maxim" H 5500 3300 50 0001 C CNN "Manufacturer"
F 6 "1" H 5500 3300 50 0001 C CNN "Populate"
F 7 "DS3231SN#" H 5500 3300 50 0001 C CNN "MacroFab_PN"
F 8 "DS3231SN#T&RCT-ND" H 5500 3300 50 0001 C CNN "Digi-Key_PN"
F 9 "Digikey" H 5500 3300 50 0001 C CNN "Distributor"
F 10 "DS3231SN#T&RCT-ND" H 5500 3300 50 0001 C CNN "DPN"
F 11 "Real Time Clock (RTC) IC Clock/Calendar - I²C, 2-Wire Serial 16-SOIC (0.295\", 7.50mm Width)" H 5500 3300 50 0001 C CNN "Description"
F 12 "110" H 5500 3300 50 0001 C CNN "OnHand"
F 13 "Tubes" H 5500 3300 50 0001 C CNN "Status"
1 5500 3300
1 0 0 -1
$EndComp
Wire Wire Line
3700 3500 4950 3500
Wire Wire Line
4950 3500 4950 3900
Connection ~ 4950 3500
Wire Wire Line
4950 3500 5000 3500
$Comp
L power:GND #PWR0101
U 1 1 5E6719BB
P 5500 4300
F 0 "#PWR0101" H 5500 4050 50 0001 C CNN
F 1 "GND" H 5505 4127 50 0000 C CNN
F 2 "" H 5500 4300 50 0001 C CNN
F 3 "" H 5500 4300 50 0001 C CNN
1 5500 4300
1 0 0 -1
$EndComp
Wire Wire Line
5500 4300 5500 3700
Text Notes 6050 3900 0 50 ~ 0
DS3231S. Be sure to avoid DS3231M version of chip \nwhich does not have precision clock output.\nSee datasheet on handling (avoid excessive shocks).\n
$Comp
L Device:R_Small_US R604
U 1 1 5EA68707
P 6400 2700
F 0 "R604" H 6400 2600 50 0000 L CNN
F 1 "47K5" H 6400 2550 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 6400 2700 50 0001 C CNN
F 3 "~" H 6400 2700 50 0001 C CNN
F 4 "0.10" H 6400 2700 50 0001 C CNN "DigiKey Price"
F 5 "Vishay" H 6400 2700 50 0001 C CNN "Manufacturer"
F 6 "CRCW060347K5FKEAC" H 6400 2700 50 0001 C CNN "MPN"
F 7 "1%" H 6400 2700 50 0001 C CNN "Tolerance"
F 8 "1" H 6400 2700 50 0001 C CNN "Populate"
F 9 "CRCW060347K5FKEAC" H 6400 2700 50 0001 C CNN "MacroFab_PN"
F 10 "541-4050-1-ND" H 6400 2700 50 0001 C CNN "Digi-Key_PN"
F 11 "Digikey" H 6400 2700 50 0001 C CNN "Distributor"
F 12 "541-4050-1-ND" H 6400 2700 50 0001 C CNN "DPN"
F 13 "47.5 kOhms ±1% 0.1W, 1/10W Chip Resistor 0603" H 6400 2700 50 0001 C CNN "Description"
1 6400 2700
1 0 0 -1
$EndComp
Wire Wire Line
6400 2600 6400 2350
Connection ~ 6400 2350
Wire Wire Line
6400 2350 6600 2350
Wire Wire Line
6400 2800 6400 3400
Connection ~ 6400 3400
Wire Wire Line
6400 3400 7050 3400
$Comp
L EVQP7C01P:EVQP7C01P SW601
U 1 1 60B84CFE
P 3300 4150
F 0 "SW601" H 4350 4603 60 0000 C CNN
F 1 "EVQP7C01P" H 4350 4497 60 0000 C CNN
F 2 "SapphineMinimal:EVQP7C01P" H 3850 4200 60 0001 C CNN
F 3 "" H 3300 4150 60 0000 C CNN
F 4 "1" H 3300 4150 50 0001 C CNN "Populate"
F 5 "Tactile Switch SPST-NO Side Actuated Surface Mount, Right Angle" H 3300 4150 50 0001 C CNN "Description"
F 6 "P16765CT-ND" H 3300 4150 50 0001 C CNN "Digi-Key_PN"
F 7 "EVQ-P7C01P" H 3300 4150 50 0001 C CNN "MPN"
F 8 "Digikey" H 3300 4150 50 0001 C CNN "Distributor"
1 3300 4150
1 0 0 -1
$EndComp
Wire Wire Line
4450 3900 4950 3900
Wire Wire Line
3700 3900 4250 3900
Wire Wire Line
3700 3900 3700 4300
Wire Wire Line
4950 4250 4900 4300
Wire Wire Line
4900 4300 4450 4300
Wire Wire Line
4950 3900 4950 4250
Wire Wire Line
4250 4300 3700 4300
Connection ~ 3700 4300
Wire Wire Line
3700 4400 3700 4300
$EndSCHEMATC