EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 4
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector:Conn_01x08_Female J5
U 1 1 5DDED974
P 5200 1900
F 0 "J5" V 5250 1450 50  0000 L CNN
F 1 "Conn_01x08_Female" V 5250 1650 50  0000 L CNN
F 2 "Connector_PinHeader_2.00mm:PinHeader_1x08_P2.00mm_Vertical" H 5200 1900 50  0001 C CNN
F 3 "~" H 5200 1900 50  0001 C CNN
	1    5200 1900
	0    -1   -1   0   
$EndComp
Text HLabel 3450 3000 0    50   BiDi ~ 0
VCC
Text HLabel 3450 5250 0    50   BiDi ~ 0
GND
Text HLabel 3450 4650 0    50   Input ~ 0
CLK
$Comp
L 74xx:74HC164 U6
U 1 1 5DCCE5D7
P 4400 3850
F 0 "U6" H 4650 4300 50  0000 C CNN
F 1 "74HC164" H 4150 4300 50  0000 C CNN
F 2 "Package_SO:TSSOP-14_4.4x5mm_P0.65mm" H 5300 3550 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT164.pdf" H 5300 3550 50  0001 C CNN
	1    4400 3850
	1    0    0    -1  
$EndComp
Text HLabel 3450 3850 0    50   Input ~ 0
ROWS
Wire Wire Line
	4800 3550 4900 3550
Wire Wire Line
	4800 3650 5000 3650
Wire Wire Line
	4800 3750 5100 3750
Wire Wire Line
	4800 3850 5200 3850
Wire Wire Line
	4400 5250 5800 5250
Wire Wire Line
	4400 3000 5800 3000
Connection ~ 4400 3000
Wire Wire Line
	4000 4150 3900 4150
Wire Wire Line
	4000 3950 3900 3950
Wire Wire Line
	3900 3950 3900 3850
Wire Wire Line
	3900 3850 4000 3850
Wire Wire Line
	4000 3650 3900 3650
Wire Wire Line
	3900 3650 3900 3000
Wire Wire Line
	3900 3000 4400 3000
Wire Wire Line
	5300 3650 6100 3650
Wire Wire Line
	5400 3750 6100 3750
Wire Wire Line
	5500 3850 6100 3850
Wire Wire Line
	5600 3950 6100 3950
Text HLabel 7100 3550 2    50   Output ~ 0
COLUMNS
NoConn ~ 4800 3950
NoConn ~ 4800 4050
NoConn ~ 4800 4150
NoConn ~ 4800 4250
NoConn ~ 6100 4350
NoConn ~ 6100 4250
NoConn ~ 6100 4150
NoConn ~ 6100 4050
NoConn ~ 6100 3550
$Comp
L 74xx:74LS166 U7
U 1 1 5DCEF9EB
P 6600 4250
F 0 "U7" H 6800 5100 50  0000 L CNN
F 1 "74LS166" H 6200 5100 50  0000 L CNN
F 2 "Package_SO:SOIC-16_3.9x9.9mm_P1.27mm" H 6600 4250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS166" H 6600 4250 50  0001 C CNN
	1    6600 4250
	1    0    0    -1  
$EndComp
Wire Wire Line
	3900 4150 3900 4650
Wire Wire Line
	3900 4650 6100 4650
Wire Wire Line
	6100 4950 6000 4950
Wire Wire Line
	6000 4950 6000 5250
Connection ~ 6000 5250
Wire Wire Line
	6000 5250 6600 5250
Wire Wire Line
	6100 4750 6000 4750
Wire Wire Line
	6000 4750 6000 4950
Connection ~ 6000 4950
Text HLabel 3450 4550 0    50   Input ~ 0
LOAD
$Comp
L Device:C C15
U 1 1 5DE94356
P 3650 3550
F 0 "C15" H 3700 3650 50  0000 L CNN
F 1 "~100nF" H 3700 3450 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 3688 3400 50  0001 C CNN
F 3 "~" H 3650 3550 50  0001 C CNN
	1    3650 3550
	1    0    0    -1  
$EndComp
$Comp
L Device:C C16
U 1 1 5DE96BB8
P 5800 4200
F 0 "C16" H 5850 4300 50  0000 L CNN
F 1 "~100nF" H 5850 4100 50  0000 L CNN
F 2 "Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder" H 5838 4050 50  0001 C CNN
F 3 "~" H 5800 4200 50  0001 C CNN
	1    5800 4200
	1    0    0    -1  
$EndComp
Wire Wire Line
	5800 4350 5800 5250
Connection ~ 5800 5250
Wire Wire Line
	5800 5250 6000 5250
Wire Wire Line
	3450 3000 3650 3000
Connection ~ 3900 3000
Wire Wire Line
	3450 5250 3650 5250
Connection ~ 4400 5250
Wire Wire Line
	4400 4450 4400 5250
Wire Wire Line
	4400 3000 4400 3350
Wire Wire Line
	6600 3000 6600 3250
Wire Wire Line
	5800 4050 5800 3000
Connection ~ 5800 3000
Wire Wire Line
	5800 3000 6600 3000
Wire Wire Line
	3650 3400 3650 3000
Connection ~ 3650 3000
Wire Wire Line
	3650 3000 3900 3000
Wire Wire Line
	3650 3700 3650 5250
Connection ~ 3650 5250
Wire Wire Line
	3650 5250 4400 5250
Wire Wire Line
	3450 4650 3900 4650
Connection ~ 3900 4650
Wire Wire Line
	3450 4550 6100 4550
Wire Wire Line
	3450 3850 3900 3850
Connection ~ 3900 3850
Wire Wire Line
	5600 2100 5600 3950
Wire Wire Line
	5500 2100 5500 3850
Wire Wire Line
	5400 2100 5400 3750
Wire Wire Line
	5300 2100 5300 3650
Wire Wire Line
	5200 2100 5200 3850
Wire Wire Line
	5100 2100 5100 3750
Wire Wire Line
	5000 2100 5000 3650
Wire Wire Line
	4900 2100 4900 3550
$EndSCHEMATC