EESchema Schematic File Version 4 EELAYER 30 0 EELAYER END $Descr A4 11693 8268 encoding utf-8 Sheet 7 8 Title "Democratic Sendcomm" Date "2020-09-08" Rev "0.8.0" Comp "Europalab Devices" Comment1 "Copyright © 2020, Europalab Devices" Comment2 "Fulfilling requirements of 20200210" Comment3 "Pending quality assurance testing" Comment4 "Release revision for manufacturing" $EndDescr $Comp L Elabdev:ATECC608A U? U 1 1 601DBF43 P 9050 3850 AR Path="/5F53D5B5/601DBF43" Ref="U?" Part="1" AR Path="/601C3EDE/601DBF43" Ref="U5" Part="1" F 0 "U5" H 8800 4300 50 0000 R CNN F 1 "ATECC608A" H 9600 4300 50 0000 R CNN F 2 "Housings_DFN_QFN:DFN-8-1EP_2x3mm_Pitch0.5mm" H 9050 4550 50 0001 C CNN F 3 "https://www.microchip.com/wwwproducts/ATECC608A/" H 8507 3759 50 0001 R CNN 1 9050 3850 -1 0 0 -1 $EndComp Wire Wire Line 7850 4350 8350 4350 Wire Wire Line 8350 4350 8350 4050 Wire Wire Line 8350 4050 8550 4050 $Comp L power:GND #PWR? U 1 1 601DBF4C P 9050 4550 AR Path="/5F53D5B5/601DBF4C" Ref="#PWR?" Part="1" AR Path="/601C3EDE/601DBF4C" Ref="#PWR018" Part="1" F 0 "#PWR018" H 9050 4300 50 0001 C CNN F 1 "GND" H 9055 4377 50 0000 C CNN F 2 "" H 9050 4550 50 0001 C CNN F 3 "" H 9050 4550 50 0001 C CNN 1 9050 4550 1 0 0 -1 $EndComp $Comp L power:+3V3 #PWR? U 1 1 601DBF52 P 9050 2950 AR Path="/5F53D5B5/601DBF52" Ref="#PWR?" Part="1" AR Path="/601C3EDE/601DBF52" Ref="#PWR015" Part="1" F 0 "#PWR015" H 9050 2800 50 0001 C CNN F 1 "+3V3" H 9065 3123 50 0000 C CNN F 2 "" H 9050 2950 50 0001 C CNN F 3 "" H 9050 2950 50 0001 C CNN 1 9050 2950 1 0 0 -1 $EndComp Wire Wire Line 9050 3350 9050 3150 Connection ~ 9050 3150 Wire Wire Line 9050 3150 9050 2950 Wire Wire Line 9600 3150 9600 4400 Wire Wire Line 9050 3150 9600 3150 Wire Wire Line 9050 4350 9050 4400 Wire Wire Line 9050 4400 9600 4400 Connection ~ 9050 4400 Wire Wire Line 9050 4400 9050 4550 $Comp L Device:R R? U 1 1 601DBF61 P 8350 3850 AR Path="/5F53D5B5/601DBF61" Ref="R?" Part="1" AR Path="/601C3EDE/601DBF61" Ref="R11" Part="1" F 0 "R11" H 8420 3896 50 0000 L CNN F 1 "4K7" H 8420 3805 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 8280 3850 50 0001 C CNN F 3 "~" H 8350 3850 50 0001 C CNN 1 8350 3850 1 0 0 -1 $EndComp $Comp L Device:R R? U 1 1 601DBF67 P 7950 3400 AR Path="/5F53D5B5/601DBF67" Ref="R?" Part="1" AR Path="/601C3EDE/601DBF67" Ref="R10" Part="1" F 0 "R10" H 8020 3446 50 0000 L CNN F 1 "4K7" H 8020 3355 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 7880 3400 50 0001 C CNN F 3 "~" H 7950 3400 50 0001 C CNN 1 7950 3400 1 0 0 -1 $EndComp Wire Wire Line 8350 3150 9050 3150 Wire Wire Line 7950 3150 8350 3150 Connection ~ 8350 3150 Wire Wire Line 8350 3700 8350 3150 Wire Wire Line 7950 3250 7950 3150 Wire Wire Line 7850 3650 7950 3650 Wire Wire Line 7950 3550 7950 3650 Connection ~ 7950 3650 Wire Wire Line 7950 3650 8550 3650 Wire Wire Line 8350 4000 8350 4050 Connection ~ 8350 4050 Text Notes 8700 2350 0 100 ~ 0 AUTH Text HLabel 7850 3650 0 50 Input ~ 0 I2C_SCL Text HLabel 7850 4350 0 50 BiDi ~ 0 I2C_SDA $Comp L Memory_EEPROM:CAT24C256 U4 U 1 1 5F68A355 P 4050 3650 F 0 "U4" H 3800 3900 50 0000 C CNN F 1 "CAT24C32" H 4250 3900 50 0000 C CNN F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 4050 3650 50 0001 C CNN F 3 "https://www.onsemi.com/pub/Collateral/CAT24C32-D.PDF" H 4050 3650 50 0001 C CNN 1 4050 3650 1 0 0 -1 $EndComp $Comp L power:GND #PWR? U 1 1 5F68A89B P 4050 4150 AR Path="/5F53D5B5/5F68A89B" Ref="#PWR?" Part="1" AR Path="/601C3EDE/5F68A89B" Ref="#PWR017" Part="1" F 0 "#PWR017" H 4050 3900 50 0001 C CNN F 1 "GND" H 4055 3977 50 0000 C CNN F 2 "" H 4050 4150 50 0001 C CNN F 3 "" H 4050 4150 50 0001 C CNN 1 4050 4150 1 0 0 -1 $EndComp Wire Wire Line 4050 3950 4050 4050 Wire Wire Line 3650 3750 3650 4050 Wire Wire Line 3650 4050 4050 4050 Connection ~ 4050 4050 Wire Wire Line 4050 4050 4050 4150 Wire Wire Line 3650 3650 3550 3650 Wire Wire Line 3550 3650 3550 4050 Wire Wire Line 3550 4050 3650 4050 Connection ~ 3650 4050 Wire Wire Line 3650 3550 3450 3550 Wire Wire Line 3450 3550 3450 4050 Wire Wire Line 3450 4050 3550 4050 Connection ~ 3550 4050 $Comp L power:+3V3 #PWR016 U 1 1 5F68BE70 P 4050 3150 F 0 "#PWR016" H 4050 3000 50 0001 C CNN F 1 "+3V3" H 4065 3323 50 0000 C CNN F 2 "" H 4050 3150 50 0001 C CNN F 3 "" H 4050 3150 50 0001 C CNN 1 4050 3150 1 0 0 -1 $EndComp Wire Wire Line 4050 3350 4050 3250 Connection ~ 3450 3550 Wire Wire Line 3450 3250 4050 3250 Connection ~ 4050 3250 Wire Wire Line 4050 3250 4050 3150 $Comp L Device:C C20 U 1 1 5F68CC64 P 3450 3400 F 0 "C20" H 3100 3450 50 0000 L CNN F 1 "0,1uF" H 3100 3350 50 0000 L CNN F 2 "Capacitor_SMD:C_0805_2012Metric" H 3488 3250 50 0001 C CNN F 3 "~" H 3450 3400 50 0001 C CNN 1 3450 3400 1 0 0 -1 $EndComp $Comp L Device:R R7 U 1 1 5F6983A1 P 4550 3400 F 0 "R7" H 4620 3446 50 0000 L CNN F 1 "3K9" H 4620 3355 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 4480 3400 50 0001 C CNN F 3 "~" H 4550 3400 50 0001 C CNN 1 4550 3400 1 0 0 -1 $EndComp $Comp L Device:R R8 U 1 1 5F698FB0 P 5050 3400 F 0 "R8" H 5120 3446 50 0000 L CNN F 1 "3K9" H 5120 3355 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 4980 3400 50 0001 C CNN F 3 "~" H 5050 3400 50 0001 C CNN 1 5050 3400 1 0 0 -1 $EndComp $Comp L Device:R R9 U 1 1 5F6990E6 P 5550 3400 F 0 "R9" H 5620 3446 50 0000 L CNN F 1 "1K" H 5620 3355 50 0000 L CNN F 2 "Resistor_SMD:R_0805_2012Metric" V 5480 3400 50 0001 C CNN F 3 "~" H 5550 3400 50 0001 C CNN 1 5550 3400 1 0 0 -1 $EndComp Wire Wire Line 4050 3250 4550 3250 Connection ~ 4550 3250 Wire Wire Line 4550 3250 5050 3250 Connection ~ 5050 3250 Wire Wire Line 5050 3250 5550 3250 Wire Wire Line 4450 3550 4550 3550 Wire Wire Line 4450 3650 5050 3650 Wire Wire Line 5050 3650 5050 3550 Wire Wire Line 4450 3750 4550 3750 Wire Wire Line 5550 3750 5550 3550 $Comp L Connector:Conn_01x02_Male J5 U 1 1 5F69B305 P 4750 3950 F 0 "J5" H 4722 3924 50 0000 R CNN F 1 "Conn_01x02_Male" H 4722 3833 50 0000 R CNN F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 4750 3950 50 0001 C CNN F 3 "~" H 4750 3950 50 0001 C CNN 1 4750 3950 -1 0 0 -1 $EndComp Wire Wire Line 4550 3950 4550 3750 Connection ~ 4550 3750 Wire Wire Line 4550 3750 5550 3750 Wire Wire Line 4550 4050 4050 4050 Wire Wire Line 4650 3550 4550 3550 Connection ~ 4550 3550 Wire Wire Line 5050 3650 5150 3650 Connection ~ 5050 3650 Text Notes 4150 2300 0 100 ~ 0 HAT-ID Text HLabel 4650 3550 2 50 BiDi ~ 0 ID_SD Text HLabel 5150 3650 2 50 Input ~ 0 ID_SC $EndSCHEMATC