EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 13
Title "Democratic Sendcomm"
Date "2020-12-08"
Rev "0.9.1"
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:ATECC608B U?
U 1 1 601DBF43
P 7850 3850
AR Path="/5F53D5B5/601DBF43" Ref="U?"  Part="1" 
AR Path="/601C3EDE/601DBF43" Ref="U8"  Part="1" 
F 0 "U8" H 7600 4300 50  0000 R CNN
F 1 "ATECC608B" H 8400 4300 50  0000 R CNN
F 2 "Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm" H 7850 4550 50  0001 C CNN
F 3 "https://www.microchip.com/wwwproducts/ATECC608B/" H 7307 3759 50  0001 R CNN
	1    7850 3850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6650 4350 7150 4350
Wire Wire Line
	7150 4350 7150 4050
Wire Wire Line
	7150 4050 7350 4050
$Comp
L power:GND #PWR?
U 1 1 601DBF4C
P 7850 4550
AR Path="/5F53D5B5/601DBF4C" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/601DBF4C" Ref="#PWR035"  Part="1" 
F 0 "#PWR035" H 7850 4300 50  0001 C CNN
F 1 "GND" H 7855 4377 50  0000 C CNN
F 2 "" H 7850 4550 50  0001 C CNN
F 3 "" H 7850 4550 50  0001 C CNN
	1    7850 4550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 601DBF52
P 7850 2950
AR Path="/5F53D5B5/601DBF52" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/601DBF52" Ref="#PWR032"  Part="1" 
F 0 "#PWR032" H 7850 2800 50  0001 C CNN
F 1 "+3V3" H 7865 3123 50  0000 C CNN
F 2 "" H 7850 2950 50  0001 C CNN
F 3 "" H 7850 2950 50  0001 C CNN
	1    7850 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	7850 3350 7850 3150
Connection ~ 7850 3150
Wire Wire Line
	7850 3150 7850 2950
Wire Wire Line
	7850 4350 7850 4400
Connection ~ 7850 4400
Wire Wire Line
	7850 4400 7850 4550
$Comp
L Device:R R?
U 1 1 601DBF61
P 7150 3850
AR Path="/5F53D5B5/601DBF61" Ref="R?"  Part="1" 
AR Path="/601C3EDE/601DBF61" Ref="R15"  Part="1" 
F 0 "R15" H 7220 3896 50  0000 L CNN
F 1 "4K7" H 7220 3805 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 7080 3850 50  0001 C CNN
F 3 "~" H 7150 3850 50  0001 C CNN
	1    7150 3850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 601DBF67
P 6750 3400
AR Path="/5F53D5B5/601DBF67" Ref="R?"  Part="1" 
AR Path="/601C3EDE/601DBF67" Ref="R14"  Part="1" 
F 0 "R14" H 6820 3446 50  0000 L CNN
F 1 "4K7" H 6820 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 6680 3400 50  0001 C CNN
F 3 "~" H 6750 3400 50  0001 C CNN
	1    6750 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	7150 3150 7850 3150
Wire Wire Line
	6750 3150 7150 3150
Connection ~ 7150 3150
Wire Wire Line
	7150 3700 7150 3150
Wire Wire Line
	6750 3250 6750 3150
Wire Wire Line
	6650 3650 6750 3650
Wire Wire Line
	6750 3550 6750 3650
Connection ~ 6750 3650
Wire Wire Line
	6750 3650 7350 3650
Wire Wire Line
	7150 4000 7150 4050
Connection ~ 7150 4050
Text Notes 7900 2350 0    100  ~ 0
AUTH
Text HLabel 6650 3650 0    50   Input ~ 0
I2C_SCL
Text HLabel 6650 4350 0    50   BiDi ~ 0
I2C_SDA
$Comp
L Memory_EEPROM:CAT24C256 U7
U 1 1 5F68A355
P 4050 3650
F 0 "U7" 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 4200
AR Path="/5F53D5B5/5F68A89B" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/5F68A89B" Ref="#PWR034"  Part="1" 
F 0 "#PWR034" H 4050 3950 50  0001 C CNN
F 1 "GND" H 4055 4027 50  0000 C CNN
F 2 "" H 4050 4200 50  0001 C CNN
F 3 "" H 4050 4200 50  0001 C CNN
	1    4050 4200
	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 #PWR033
U 1 1 5F68BE70
P 4050 3150
F 0 "#PWR033" 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 C41
U 1 1 5F68CC64
P 3450 3400
F 0 "C41" 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 R11
U 1 1 5F6983A1
P 4550 3400
F 0 "R11" 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 R12
U 1 1 5F698FB0
P 5050 3400
F 0 "R12" 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 R13
U 1 1 5F6990E6
P 5550 3400
F 0 "R13" 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 J7
U 1 1 5F69B305
P 4750 3950
F 0 "J7" 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 3750 2400 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
$Comp
L Memory_EEPROM:CAT24C256 U6
U 1 1 5F70A85A
P 2550 3650
F 0 "U6" H 2800 3900 50  0000 C CNN
F 1 "CAT24C32" H 2350 3900 50  0000 C CNN
F 2 "Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm" H 2550 3650 50  0001 C CNN
F 3 "https://www.onsemi.com/pub/Collateral/CAT24C32-D.PDF" H 2550 3650 50  0001 C CNN
	1    2550 3650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	2950 3550 3450 3550
Wire Wire Line
	2950 3650 3550 3650
Connection ~ 3550 3650
Wire Wire Line
	2950 3750 3650 3750
Connection ~ 3650 3750
Wire Wire Line
	2550 3350 2550 3250
Wire Wire Line
	2550 3250 3450 3250
Connection ~ 3450 3250
Wire Wire Line
	2550 3950 2550 4150
Wire Wire Line
	2550 4150 4050 4150
Connection ~ 4050 4150
Wire Wire Line
	4050 4150 4050 4200
Wire Wire Line
	2150 3750 2050 3750
Wire Wire Line
	2050 3750 2050 4450
Wire Wire Line
	2050 4450 5550 4450
Wire Wire Line
	5550 4450 5550 3750
Connection ~ 5550 3750
Text HLabel 2150 3550 0    50   BiDi ~ 0
ID_SD
Text HLabel 2150 3650 0    50   Input ~ 0
ID_SC
Text Notes 2250 3950 0    50   ~ 0
DNP
$Comp
L Elabdev:ATECC608B U?
U 1 1 5F74CA64
P 9450 3850
AR Path="/5F53D5B5/5F74CA64" Ref="U?"  Part="1" 
AR Path="/601C3EDE/5F74CA64" Ref="U9"  Part="1" 
F 0 "U9" H 9200 4300 50  0000 R CNN
F 1 "ATECC608B" H 10000 4300 50  0000 R CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 9450 4550 50  0001 C CNN
F 3 "https://www.microchip.com/wwwproducts/ATECC608B/" H 8907 3759 50  0001 R CNN
	1    9450 3850
	-1   0    0    -1  
$EndComp
Text HLabel 8950 3650 0    50   Input ~ 0
I2C_SCL
Text HLabel 8950 4050 0    50   BiDi ~ 0
I2C_SDA
Wire Wire Line
	9450 4350 9450 4400
Wire Wire Line
	9450 3350 9450 3150
Wire Wire Line
	7850 3150 8400 3150
Wire Wire Line
	7850 4400 8400 4400
$Comp
L Device:C C42
U 1 1 5F78EE57
P 8400 3850
F 0 "C42" H 8515 3896 50  0000 L CNN
F 1 "0,1uF" H 8515 3805 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 8438 3700 50  0001 C CNN
F 3 "~" H 8400 3850 50  0001 C CNN
	1    8400 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	8400 3700 8400 3150
Connection ~ 8400 3150
Wire Wire Line
	8400 3150 9450 3150
Wire Wire Line
	8400 4000 8400 4400
Connection ~ 8400 4400
Wire Wire Line
	8400 4400 9450 4400
$EndSCHEMATC