EESchema Schematic File Version 4
LIBS:PinLock-cache
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 4
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Connector:Conn_01x08_Female J?
U 1 1 5DDED974
P 4900 2850
F 0 "J?" V 4950 2400 50  0000 L CNN
F 1 "Conn_01x08_Female" V 4950 2600 50  0000 L CNN
F 2 "" H 4900 2850 50  0001 C CNN
F 3 "~" H 4900 2850 50  0001 C CNN
	1    4900 2850
	0    -1   -1   0   
$EndComp
Text HLabel 3150 2600 0    50   BiDi ~ 0
VCC
Text HLabel 3150 4850 0    50   BiDi ~ 0
GND
Text HLabel 3150 4250 0    50   Input ~ 0
CLK
$Comp
L 74xx:74HC164 U?
U 1 1 5DCCE5D7
P 4100 3450
F 0 "U?" H 4350 3900 50  0000 C CNN
F 1 "74HC164" H 3850 3900 50  0000 C CNN
F 2 "" H 5000 3150 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT164.pdf" H 5000 3150 50  0001 C CNN
	1    4100 3450
	1    0    0    -1  
$EndComp
Text HLabel 3150 3450 0    50   Input ~ 0
ROWS
Wire Wire Line
	4500 3150 4600 3150
Wire Wire Line
	4600 3150 4600 3050
Wire Wire Line
	4500 3250 4700 3250
Wire Wire Line
	4700 3250 4700 3050
Wire Wire Line
	4500 3350 4800 3350
Wire Wire Line
	4800 3350 4800 3050
Wire Wire Line
	4500 3450 4900 3450
Wire Wire Line
	4900 3450 4900 3050
Wire Wire Line
	4100 4850 5500 4850
Wire Wire Line
	4100 2600 5500 2600
Connection ~ 4100 2600
Wire Wire Line
	3700 3750 3600 3750
Wire Wire Line
	3700 3550 3600 3550
Wire Wire Line
	3600 3550 3600 3450
Wire Wire Line
	3600 3450 3700 3450
Wire Wire Line
	3700 3250 3600 3250
Wire Wire Line
	3600 3250 3600 2600
Wire Wire Line
	3600 2600 4100 2600
Wire Wire Line
	5000 3050 5000 3250
Wire Wire Line
	5000 3250 5800 3250
Wire Wire Line
	5100 3050 5100 3350
Wire Wire Line
	5100 3350 5800 3350
Wire Wire Line
	5200 3050 5200 3450
Wire Wire Line
	5200 3450 5800 3450
Wire Wire Line
	5300 3050 5300 3550
Wire Wire Line
	5300 3550 5800 3550
Text HLabel 6800 3150 2    50   Output ~ 0
COLUMNS
NoConn ~ 4500 3550
NoConn ~ 4500 3650
NoConn ~ 4500 3750
NoConn ~ 4500 3850
NoConn ~ 5800 3950
NoConn ~ 5800 3850
NoConn ~ 5800 3750
NoConn ~ 5800 3650
NoConn ~ 5800 3150
$Comp
L 74xx:74LS166 U?
U 1 1 5DCEF9EB
P 6300 3850
F 0 "U?" H 6550 4700 50  0000 L CNN
F 1 "74LS166" H 5900 4700 50  0000 L CNN
F 2 "" H 6300 3850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS166" H 6300 3850 50  0001 C CNN
	1    6300 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	3600 3750 3600 4250
Wire Wire Line
	3600 4250 5800 4250
Wire Wire Line
	5800 4550 5700 4550
Wire Wire Line
	5700 4550 5700 4850
Connection ~ 5700 4850
Wire Wire Line
	5700 4850 6300 4850
Wire Wire Line
	5800 4350 5700 4350
Wire Wire Line
	5700 4350 5700 4550
Connection ~ 5700 4550
Text HLabel 3150 4150 0    50   Input ~ 0
LOAD
$Comp
L Device:C C?
U 1 1 5DE94356
P 3350 3150
F 0 "C?" H 3465 3196 50  0000 L CNN
F 1 "C" H 3465 3105 50  0000 L CNN
F 2 "" H 3388 3000 50  0001 C CNN
F 3 "~" H 3350 3150 50  0001 C CNN
	1    3350 3150
	1    0    0    -1  
$EndComp
$Comp
L Device:C C?
U 1 1 5DE96BB8
P 5500 3800
F 0 "C?" H 5615 3846 50  0000 L CNN
F 1 "C" H 5615 3755 50  0000 L CNN
F 2 "" H 5538 3650 50  0001 C CNN
F 3 "~" H 5500 3800 50  0001 C CNN
	1    5500 3800
	1    0    0    -1  
$EndComp
Wire Wire Line
	5500 3950 5500 4850
Connection ~ 5500 4850
Wire Wire Line
	5500 4850 5700 4850
Wire Wire Line
	3150 2600 3350 2600
Connection ~ 3600 2600
Wire Wire Line
	3150 4850 3350 4850
Connection ~ 4100 4850
Wire Wire Line
	4100 4050 4100 4850
Wire Wire Line
	4100 2600 4100 2950
Wire Wire Line
	6300 2600 6300 2850
Wire Wire Line
	5500 3650 5500 2600
Connection ~ 5500 2600
Wire Wire Line
	5500 2600 6300 2600
Wire Wire Line
	3350 3000 3350 2600
Connection ~ 3350 2600
Wire Wire Line
	3350 2600 3600 2600
Wire Wire Line
	3350 3300 3350 4850
Connection ~ 3350 4850
Wire Wire Line
	3350 4850 4100 4850
Wire Wire Line
	3150 4250 3600 4250
Connection ~ 3600 4250
Wire Wire Line
	3150 4150 5800 4150
Wire Wire Line
	3150 3450 3600 3450
Connection ~ 3600 3450
$EndSCHEMATC