alternative design

CAD/ClockClock/ClockClock.sch

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+EESchema Schematic File Version 4
+EELAYER 30 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
+L MCU_ST_STM32L0:STM32L031K6Tx U?
+U 1 1 604C17C5
+P 6000 2900
+F 0 "U?" H 5950 1811 50  0000 C CNN
+F 1 "STM32L031K6Tx" H 5950 1720 50  0000 C CNN
+F 2 "Package_QFP:LQFP-32_7x7mm_P0.8mm" H 5500 2000 50  0001 R CNN
+F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00140359.pdf" H 6000 2900 50  0001 C CNN
+	1    6000 2900
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:+3.3V #PWR?
+U 1 1 604C2A16
+P 5950 1650
+F 0 "#PWR?" H 5950 1500 50  0001 C CNN
+F 1 "+3.3V" H 5965 1823 50  0000 C CNN
+F 2 "" H 5950 1650 50  0001 C CNN
+F 3 "" H 5950 1650 50  0001 C CNN
+	1    5950 1650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5900 1750 5900 2000
+Wire Wire Line
+	6000 2000 6000 1750
+Wire Wire Line
+	6000 1750 5950 1750
+Wire Wire Line
+	5950 1650 5950 1750
+Connection ~ 5950 1750
+Wire Wire Line
+	5950 1750 5900 1750
+Wire Wire Line
+	6100 2000 6100 1750
+Wire Wire Line
+	6100 1750 6000 1750
+Connection ~ 6000 1750
+$Comp
+L power:GND #PWR?
+U 1 1 604C3752
+P 5900 4300
+F 0 "#PWR?" H 5900 4050 50  0001 C CNN
+F 1 "GND" H 5905 4127 50  0000 C CNN
+F 2 "" H 5900 4300 50  0001 C CNN
+F 3 "" H 5900 4300 50  0001 C CNN
+	1    5900 4300
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5900 4300 5900 4150
+Wire Wire Line
+	6000 3900 6000 4150
+Wire Wire Line
+	6000 4150 5900 4150
+Connection ~ 5900 4150
+Wire Wire Line
+	5900 4150 5900 3900
+$EndSCHEMATC