EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 2 13
Title "Democratic Sendcomm"
Date "2021-01-16"
Rev "0.9.4"
Comp "Europalab Devices"
Comment1 "Copyright © 2021, 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 7050 3850
AR Path="/5F53D5B5/601DBF43" Ref="U?"  Part="1" 
AR Path="/601C3EDE/601DBF43" Ref="U8"  Part="1" 
F 0 "U8" H 6800 4300 50  0000 R CNN
F 1 "ATECC608B" H 7600 4300 50  0000 R CNN
F 2 "Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm" H 7050 4550 50  0001 C CNN
F 3 "https://www.microchip.com/wwwproducts/ATECC608B/" H 6507 3759 50  0001 R CNN
	1    7050 3850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	5850 4350 6350 4350
Wire Wire Line
	6350 4350 6350 4050
Wire Wire Line
	6350 4050 6550 4050
$Comp
L power:GND #PWR?
U 1 1 601DBF4C
P 7050 4550
AR Path="/5F53D5B5/601DBF4C" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/601DBF4C" Ref="#PWR035"  Part="1" 
F 0 "#PWR035" H 7050 4300 50  0001 C CNN
F 1 "GND" H 7055 4377 50  0000 C CNN
F 2 "" H 7050 4550 50  0001 C CNN
F 3 "" H 7050 4550 50  0001 C CNN
	1    7050 4550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 601DBF52
P 7050 2950
AR Path="/5F53D5B5/601DBF52" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/601DBF52" Ref="#PWR032"  Part="1" 
F 0 "#PWR032" H 7050 2800 50  0001 C CNN
F 1 "+3V3" H 7065 3123 50  0000 C CNN
F 2 "" H 7050 2950 50  0001 C CNN
F 3 "" H 7050 2950 50  0001 C CNN
	1    7050 2950
	1    0    0    -1  
$EndComp
Wire Wire Line
	7050 3350 7050 3150
Connection ~ 7050 3150
Wire Wire Line
	7050 3150 7050 2950
Wire Wire Line
	7050 4350 7050 4400
Connection ~ 7050 4400
Wire Wire Line
	7050 4400 7050 4550
$Comp
L Device:R R?
U 1 1 601DBF61
P 6350 3850
AR Path="/5F53D5B5/601DBF61" Ref="R?"  Part="1" 
AR Path="/601C3EDE/601DBF61" Ref="R15"  Part="1" 
F 0 "R15" H 6420 3896 50  0000 L CNN
F 1 "10K" H 6420 3805 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 6280 3850 50  0001 C CNN
F 3 "~" H 6350 3850 50  0001 C CNN
	1    6350 3850
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 601DBF67
P 5950 3400
AR Path="/5F53D5B5/601DBF67" Ref="R?"  Part="1" 
AR Path="/601C3EDE/601DBF67" Ref="R14"  Part="1" 
F 0 "R14" H 6020 3446 50  0000 L CNN
F 1 "10K" H 6020 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 5880 3400 50  0001 C CNN
F 3 "~" H 5950 3400 50  0001 C CNN
	1    5950 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	6350 3150 7050 3150
Wire Wire Line
	5950 3150 6350 3150
Connection ~ 6350 3150
Wire Wire Line
	6350 3700 6350 3150
Wire Wire Line
	5950 3250 5950 3150
Wire Wire Line
	5850 3650 5950 3650
Wire Wire Line
	5950 3550 5950 3650
Connection ~ 5950 3650
Wire Wire Line
	5950 3650 6550 3650
Wire Wire Line
	6350 4000 6350 4050
Connection ~ 6350 4050
Text Notes 7100 2350 0    100  ~ 0
AUTH
Text HLabel 5850 3650 0    50   Input ~ 0
I2C_SCL
Text HLabel 5850 4350 0    50   BiDi ~ 0
I2C_SDA
$Comp
L Memory_EEPROM:CAT24C256 U7
U 1 1 5F68A355
P 3250 3650
F 0 "U7" H 3000 3900 50  0000 C CNN
F 1 "CAT24C32" H 3450 3900 50  0000 C CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 3250 3650 50  0001 C CNN
F 3 "https://www.onsemi.com/pub/Collateral/CAT24C32-D.PDF" H 3250 3650 50  0001 C CNN
	1    3250 3650
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F68A89B
P 3250 4200
AR Path="/5F53D5B5/5F68A89B" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/5F68A89B" Ref="#PWR034"  Part="1" 
F 0 "#PWR034" H 3250 3950 50  0001 C CNN
F 1 "GND" H 3255 4027 50  0000 C CNN
F 2 "" H 3250 4200 50  0001 C CNN
F 3 "" H 3250 4200 50  0001 C CNN
	1    3250 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 3950 3250 4050
Wire Wire Line
	2850 3750 2850 4050
Wire Wire Line
	2850 4050 3250 4050
Connection ~ 3250 4050
Wire Wire Line
	3250 4050 3250 4150
Wire Wire Line
	2850 3650 2750 3650
Wire Wire Line
	2750 3650 2750 4050
Wire Wire Line
	2750 4050 2850 4050
Connection ~ 2850 4050
Wire Wire Line
	2850 3550 2650 3550
Wire Wire Line
	2650 3550 2650 4050
Wire Wire Line
	2650 4050 2750 4050
Connection ~ 2750 4050
$Comp
L power:+3V3 #PWR033
U 1 1 5F68BE70
P 3250 3150
F 0 "#PWR033" H 3250 3000 50  0001 C CNN
F 1 "+3V3" H 3265 3323 50  0000 C CNN
F 2 "" H 3250 3150 50  0001 C CNN
F 3 "" H 3250 3150 50  0001 C CNN
	1    3250 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 3350 3250 3250
Connection ~ 2650 3550
Wire Wire Line
	2650 3250 3250 3250
Connection ~ 3250 3250
Wire Wire Line
	3250 3250 3250 3150
$Comp
L Device:C C41
U 1 1 5F68CC64
P 2650 3400
F 0 "C41" H 2300 3450 50  0000 L CNN
F 1 "0,1uF" H 2300 3350 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 2688 3250 50  0001 C CNN
F 3 "~" H 2650 3400 50  0001 C CNN
	1    2650 3400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R11
U 1 1 5F6983A1
P 3750 3400
F 0 "R11" H 3820 3446 50  0000 L CNN
F 1 "10K" H 3820 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 3680 3400 50  0001 C CNN
F 3 "~" H 3750 3400 50  0001 C CNN
	1    3750 3400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R12
U 1 1 5F698FB0
P 4250 3400
F 0 "R12" H 4320 3446 50  0000 L CNN
F 1 "10K" H 4320 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4180 3400 50  0001 C CNN
F 3 "~" H 4250 3400 50  0001 C CNN
	1    4250 3400
	1    0    0    -1  
$EndComp
$Comp
L Device:R R13
U 1 1 5F6990E6
P 4750 3400
F 0 "R13" H 4820 3446 50  0000 L CNN
F 1 "1K" H 4820 3355 50  0000 L CNN
F 2 "Resistor_SMD:R_0805_2012Metric" V 4680 3400 50  0001 C CNN
F 3 "~" H 4750 3400 50  0001 C CNN
	1    4750 3400
	1    0    0    -1  
$EndComp
Wire Wire Line
	3250 3250 3750 3250
Connection ~ 3750 3250
Wire Wire Line
	3750 3250 4250 3250
Connection ~ 4250 3250
Wire Wire Line
	4250 3250 4750 3250
Wire Wire Line
	3650 3550 3750 3550
Wire Wire Line
	3650 3650 4250 3650
Wire Wire Line
	4250 3650 4250 3550
Wire Wire Line
	3650 3750 3750 3750
Wire Wire Line
	4750 3750 4750 3550
$Comp
L Connector:Conn_01x02_Male J7
U 1 1 5F69B305
P 3950 3950
F 0 "J7" H 3922 3924 50  0000 R CNN
F 1 "Conn_01x02_Male" H 3922 3833 50  0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical" H 3950 3950 50  0001 C CNN
F 3 "~" H 3950 3950 50  0001 C CNN
	1    3950 3950
	-1   0    0    -1  
$EndComp
Wire Wire Line
	3750 3950 3750 3750
Connection ~ 3750 3750
Wire Wire Line
	3750 3750 4750 3750
Wire Wire Line
	3750 4050 3250 4050
Wire Wire Line
	3850 3550 3750 3550
Connection ~ 3750 3550
Wire Wire Line
	4250 3650 4350 3650
Connection ~ 4250 3650
Text Notes 2950 2400 0    100  ~ 0
HAT-ID
Text HLabel 3850 3550 2    50   BiDi ~ 0
ID_SD
Text HLabel 4350 3650 2    50   Input ~ 0
ID_SC
$Comp
L Memory_EEPROM:CAT24C256 U6
U 1 1 5F70A85A
P 1750 3650
F 0 "U6" H 2000 3900 50  0000 C CNN
F 1 "CAT24C32" H 1550 3900 50  0000 C CNN
F 2 "Package_DFN_QFN:DFN-8-1EP_3x2mm_P0.5mm_EP1.3x1.5mm" H 1750 3650 50  0001 C CNN
F 3 "https://www.onsemi.com/pub/Collateral/CAT24C32-D.PDF" H 1750 3650 50  0001 C CNN
	1    1750 3650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	2150 3550 2650 3550
Wire Wire Line
	2150 3650 2750 3650
Connection ~ 2750 3650
Wire Wire Line
	2150 3750 2850 3750
Connection ~ 2850 3750
Wire Wire Line
	1750 3350 1750 3250
Wire Wire Line
	1750 3250 2650 3250
Connection ~ 2650 3250
Wire Wire Line
	1750 3950 1750 4150
Wire Wire Line
	1750 4150 3250 4150
Connection ~ 3250 4150
Wire Wire Line
	3250 4150 3250 4200
Wire Wire Line
	1350 3750 1250 3750
Wire Wire Line
	1250 3750 1250 4450
Wire Wire Line
	1250 4450 4750 4450
Wire Wire Line
	4750 4450 4750 3750
Connection ~ 4750 3750
Text HLabel 1350 3550 0    50   BiDi ~ 0
ID_SD
Text HLabel 1350 3650 0    50   Input ~ 0
ID_SC
Text Notes 1450 3950 0    50   ~ 0
DNP
$Comp
L Elabdev:ATECC608B U?
U 1 1 5F74CA64
P 8650 3850
AR Path="/5F53D5B5/5F74CA64" Ref="U?"  Part="1" 
AR Path="/601C3EDE/5F74CA64" Ref="U9"  Part="1" 
F 0 "U9" H 8400 4300 50  0000 R CNN
F 1 "ATECC608B" H 9200 4300 50  0000 R CNN
F 2 "Package_SO:SOIC-8_3.9x4.9mm_P1.27mm" H 8650 4550 50  0001 C CNN
F 3 "https://www.microchip.com/wwwproducts/ATECC608B/" H 8107 3759 50  0001 R CNN
	1    8650 3850
	-1   0    0    -1  
$EndComp
Text HLabel 8150 3650 0    50   Input ~ 0
I2C_SCL
Text HLabel 8150 4050 0    50   BiDi ~ 0
I2C_SDA
Wire Wire Line
	8650 4350 8650 4400
Wire Wire Line
	8650 3350 8650 3150
Wire Wire Line
	7050 3150 7600 3150
Wire Wire Line
	7050 4400 7600 4400
$Comp
L Device:C C42
U 1 1 5F78EE57
P 7600 3850
F 0 "C42" H 7715 3896 50  0000 L CNN
F 1 "0,1uF" H 7715 3805 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric" H 7638 3700 50  0001 C CNN
F 3 "~" H 7600 3850 50  0001 C CNN
	1    7600 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 3700 7600 3150
Connection ~ 7600 3150
Wire Wire Line
	7600 3150 8650 3150
Wire Wire Line
	7600 4000 7600 4400
Connection ~ 7600 4400
Wire Wire Line
	7600 4400 8650 4400
$Comp
L Connector_Generic:Conn_01x04 J?
U 1 1 604ADA51
P 10400 3950
AR Path="/60040981/604ADA51" Ref="J?"  Part="1" 
AR Path="/601C3EDE/604ADA51" Ref="J21"  Part="1" 
F 0 "J21" H 10318 3525 50  0000 C CNN
F 1 "Conn_01x04" H 10318 3616 50  0000 C CNN
F 2 "Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal" H 10400 3950 50  0001 C CNN
F 3 "~" H 10400 3950 50  0001 C CNN
	1    10400 3950
	1    0    0    1   
$EndComp
Wire Wire Line
	10200 4050 10100 4050
Text HLabel 10200 3750 0    50   Input ~ 0
I2C_SCL
Text HLabel 10200 3850 0    50   BiDi ~ 0
I2C_SDA
$Comp
L power:GND #PWR?
U 1 1 6053E88B
P 10100 4050
AR Path="/5F53D5B5/6053E88B" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/6053E88B" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 10100 3800 50  0001 C CNN
F 1 "GND" H 10105 3877 50  0000 C CNN
F 2 "" H 10100 4050 50  0001 C CNN
F 3 "" H 10100 4050 50  0001 C CNN
	1    10100 4050
	1    0    0    -1  
$EndComp
Wire Wire Line
	10200 3950 9800 3950
Wire Wire Line
	9800 3950 9800 3650
$Comp
L power:+3V3 #PWR?
U 1 1 605411C5
P 9800 3650
AR Path="/5F53D5B5/605411C5" Ref="#PWR?"  Part="1" 
AR Path="/601C3EDE/605411C5" Ref="#PWR?"  Part="1" 
F 0 "#PWR?" H 9800 3500 50  0001 C CNN
F 1 "+3V3" H 9815 3823 50  0000 C CNN
F 2 "" H 9800 3650 50  0001 C CNN
F 3 "" H 9800 3650 50  0001 C CNN
	1    9800 3650
	1    0    0    -1  
$EndComp
Text Notes 9950 3350 0    100  ~ 0
QWIIC
$EndSCHEMATC