GPIO.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 6
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L eec:MAX7301ATL U11
U 1 1 60267553
P 5450 3350
F 0 "U11" H 5425 4915 50  0000 C CNN
F 1 "MAX7301ATL" H 5425 4824 50  0000 C CNN
F 2 "Package_DFN_QFN:QFN-40-1EP_5x5mm_P0.4mm_EP3.8x3.8mm" H 4900 3700 50  0001 C CNN
F 3 "" H 4900 3700 50  0001 C CNN
	1    5450 3350
	1    0    0    -1  
$EndComp
Wire Bus Line
	6550 4950 7100 4950
Text HLabel 7100 4950 2    50   BiDi ~ 0
P[4..31]
Text Label 6050 2050 0    50   ~ 0
P4
Text Label 6050 2150 0    50   ~ 0
P5
Text Label 6050 2250 0    50   ~ 0
P6
Text Label 6050 2350 0    50   ~ 0
P7
Text Label 6050 2450 0    50   ~ 0
P8
Text Label 6050 2550 0    50   ~ 0
P9
Text Label 6050 2650 0    50   ~ 0
P10
Text Label 6050 2750 0    50   ~ 0
P11
Text Label 6050 2850 0    50   ~ 0
P12
Text Label 6050 2950 0    50   ~ 0
P13
Text Label 6050 3050 0    50   ~ 0
P14
Text Label 6050 3150 0    50   ~ 0
P15
Text Label 6050 3250 0    50   ~ 0
P16
Text Label 6050 3350 0    50   ~ 0
P17
Text Label 6050 3450 0    50   ~ 0
P18
Text Label 6050 3550 0    50   ~ 0
P19
Text Label 6050 3650 0    50   ~ 0
P20
Text Label 6050 3750 0    50   ~ 0
P21
Text Label 6050 3850 0    50   ~ 0
P22
Text Label 6050 3950 0    50   ~ 0
P23
Text Label 6050 4050 0    50   ~ 0
P24
Text Label 6050 4150 0    50   ~ 0
P25
Text Label 6050 4250 0    50   ~ 0
P26
Text Label 6050 4350 0    50   ~ 0
P27
Text Label 6050 4450 0    50   ~ 0
P28
Text Label 6050 4550 0    50   ~ 0
P29
Text Label 6050 4650 0    50   ~ 0
P30
Text Label 6050 4750 0    50   ~ 0
P31
Entry Wire Line
	6550 2150 6450 2050
Entry Wire Line
	6450 2150 6550 2250
Entry Wire Line
	6450 2250 6550 2350
Entry Wire Line
	6450 2350 6550 2450
Entry Wire Line
	6450 2450 6550 2550
Entry Wire Line
	6450 2550 6550 2650
Entry Wire Line
	6450 2650 6550 2750
Entry Wire Line
	6450 2750 6550 2850
Entry Wire Line
	6450 2850 6550 2950
Entry Wire Line
	6450 2950 6550 3050
Entry Wire Line
	6450 3050 6550 3150
Entry Wire Line
	6450 3150 6550 3250
Entry Wire Line
	6450 3250 6550 3350
Entry Wire Line
	6450 3350 6550 3450
Entry Wire Line
	6450 3450 6550 3550
Entry Wire Line
	6450 3550 6550 3650
Entry Wire Line
	6450 3650 6550 3750
Entry Wire Line
	6450 3750 6550 3850
Entry Wire Line
	6450 3850 6550 3950
Entry Wire Line
	6450 3950 6550 4050
Entry Wire Line
	6450 4050 6550 4150
Entry Wire Line
	6450 4150 6550 4250
Entry Wire Line
	6450 4250 6550 4350
Entry Wire Line
	6450 4350 6550 4450
Entry Wire Line
	6450 4450 6550 4550
Entry Wire Line
	6450 4550 6550 4650
Entry Wire Line
	6450 4650 6550 4750
Entry Wire Line
	6450 4750 6550 4850
Wire Wire Line
	5950 2050 6450 2050
Wire Wire Line
	5950 2150 6450 2150
Wire Wire Line
	5950 2250 6450 2250
Wire Wire Line
	5950 2350 6450 2350
Wire Wire Line
	5950 2450 6450 2450
Wire Wire Line
	5950 2550 6450 2550
Wire Wire Line
	5950 2650 6450 2650
Wire Wire Line
	5950 2750 6450 2750
Wire Wire Line
	5950 2850 6450 2850
Wire Wire Line
	5950 2950 6450 2950
Wire Wire Line
	5950 3050 6450 3050
Wire Wire Line
	5950 3150 6450 3150
Wire Wire Line
	5950 3250 6450 3250
Wire Wire Line
	5950 3350 6450 3350
Wire Wire Line
	5950 3450 6450 3450
Wire Wire Line
	5950 3550 6450 3550
Wire Wire Line
	5950 3650 6450 3650
Wire Wire Line
	5950 3750 6450 3750
Wire Wire Line
	5950 3850 6450 3850
Wire Wire Line
	5950 3950 6450 3950
Wire Wire Line
	5950 4050 6450 4050
Wire Wire Line
	5950 4150 6450 4150
Wire Wire Line
	5950 4250 6450 4250
Wire Wire Line
	5950 4350 6450 4350
Wire Wire Line
	5950 4450 6450 4450
Wire Wire Line
	5950 4550 6450 4550
Wire Wire Line
	5950 4650 6450 4650
Wire Wire Line
	5950 4750 6450 4750
$Comp
L Device:C_Small C?
U 1 1 6027A1E2
P 4600 4050
AR Path="/6027A1E2" Ref="C?"  Part="1" 
AR Path="/6025D6A5/6027A1E2" Ref="C40"  Part="1" 
F 0 "C40" V 4371 4050 50  0000 C CNN
F 1 "100n" V 4462 4050 50  0000 C CNN
F 2 "Capacitor_SMD:C_0603_1608Metric" H 4600 4050 50  0001 C CNN
F 3 "~" H 4600 4050 50  0001 C CNN
	1    4600 4050
	0    1    1    0   
$EndComp
Wire Wire Line
	4700 4050 4800 4050
$Comp
L Device:R_Small R?
U 1 1 602963AE
P 4600 4250
AR Path="/602963AE" Ref="R?"  Part="1" 
AR Path="/6025D6A5/602963AE" Ref="R27"  Part="1" 
F 0 "R27" V 4704 4250 50  0000 C CNN
F 1 "1K5" V 4795 4250 50  0000 C CNN
F 2 "Resistor_SMD:R_0603_1608Metric" H 4600 4250 50  0001 C CNN
F 3 "~" H 4600 4250 50  0001 C CNN
	1    4600 4250
	0    1    1    0   
$EndComp
$Comp
L power:GND #PWR?
U 1 1 602963B4
P 4400 4850
AR Path="/602963B4" Ref="#PWR?"  Part="1" 
AR Path="/6025D6A5/602963B4" Ref="#PWR026"  Part="1" 
F 0 "#PWR026" H 4400 4600 50  0001 C CNN
F 1 "GND" H 4405 4677 50  0000 C CNN
F 2 "" H 4400 4850 50  0000 C CNN
F 3 "" H 4400 4850 50  0000 C CNN
	1    4400 4850
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 602963BA
P 4800 3900
AR Path="/602963BA" Ref="#PWR?"  Part="1" 
AR Path="/6025D6A5/602963BA" Ref="#PWR029"  Part="1" 
F 0 "#PWR029" H 4800 3750 50  0001 C CNN
F 1 "+3.3V" H 4815 4073 50  0000 C CNN
F 2 "" H 4800 3900 50  0000 C CNN
F 3 "" H 4800 3900 50  0000 C CNN
	1    4800 3900
	1    0    0    -1  
$EndComp
Wire Wire Line
	4700 4250 4900 4250
Wire Wire Line
	4900 4550 4900 4650
Wire Wire Line
	4900 4750 4400 4750
Wire Wire Line
	4400 4750 4400 4850
Connection ~ 4900 4750
Connection ~ 4900 4650
Wire Wire Line
	4900 4650 4900 4750
Wire Wire Line
	4400 4750 4400 4250
Wire Wire Line
	4400 4050 4500 4050
Connection ~ 4400 4750
Wire Wire Line
	4500 4250 4400 4250
Connection ~ 4400 4250
Wire Wire Line
	4400 4250 4400 4050
Wire Wire Line
	4800 3900 4800 4050
Connection ~ 4800 4050
Wire Wire Line
	4800 4050 4900 4050
Wire Wire Line
	4900 2050 4400 2050
Wire Wire Line
	4400 2150 4900 2150
Wire Wire Line
	4900 2250 4400 2250
Wire Wire Line
	4400 2350 4900 2350
Text HLabel 4400 2050 0    50   Input ~ 0
SCLK
Text HLabel 4400 2150 0    50   Input ~ 0
DIN
Text HLabel 4400 2250 0    50   Input ~ 0
~CS
Text HLabel 4400 2350 0    50   Output ~ 0
DOUT
Wire Wire Line
	4900 4450 4900 4550
Connection ~ 4900 4550
Wire Bus Line
	6550 2150 6550 4950
$EndSCHEMATC