keyboard.sch

EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 5 23
Title "Open128"
Date ""
Rev ""
Comp ""
Comment1 "Licensed under CC BY-SA 4.0"
Comment2 "Open Source clone of the Commodore 128"
Comment3 "https://github.com/jgrip/open128/"
Comment4 ""
$EndDescr
$Comp
L Timer:LM556 U?
U 1 1 5DA5B9E2
P 7600 3050
AR Path="/5D9136A4/5DA5B9E2" Ref="U?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5B9E2" Ref="U27"  Part="1" 
F 0 "U27" H 7350 3400 50  0000 C CNN
F 1 "LM556" H 7850 3400 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 7600 3050 50  0001 C CNN
F 3 "http://www.ti.com/lit/ds/symlink/lm556.pdf" H 7600 3050 50  0001 C CNN
F 4 "595-NA556N" H 7600 3050 50  0001 C CNN "Mouser Part"
	1    7600 3050
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 3050 8100 3050
Wire Wire Line
	8100 3250 8250 3250
Wire Wire Line
	8250 3250 8250 3050
$Comp
L Device:R R?
U 1 1 5DA5BA01
P 8250 2500
AR Path="/5D9136A4/5DA5BA01" Ref="R?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA01" Ref="R22"  Part="1" 
F 0 "R22" H 8100 2500 50  0000 C CNN
F 1 "47k" V 8250 2500 50  0000 C CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" V 8180 2500 50  0001 C CNN
F 3 "~" H 8250 2500 50  0001 C CNN
F 4 "660-MF1/4LCT52R473J" H 8250 2500 50  0001 C CNN "Mouser Part"
	1    8250 2500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS06 U?
U 2 1 5DA5BA09
P 8700 2850
AR Path="/5D9136A4/5DA5BA09" Ref="U?"  Part="2" 
AR Path="/5DA44980/5DA449C5/5DA5BA09" Ref="U29"  Part="2" 
F 0 "U29" H 8700 3167 50  0000 C CNN
F 1 "7406" H 8700 3076 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 8700 2850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS06" H 8700 2850 50  0001 C CNN
F 4 "595-SN74LS06N" H 8700 2850 50  0001 C CNN "Mouser Part"
	2    8700 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	8100 2850 8400 2850
Wire Wire Line
	8250 2250 8250 2350
Wire Wire Line
	8250 2650 8250 3050
Connection ~ 8250 3050
$Comp
L Device:C_Small C?
U 1 1 5DA5BA19
P 8250 3450
AR Path="/5D9136A4/5DA5BA19" Ref="C?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA19" Ref="C90"  Part="1" 
F 0 "C90" H 8150 3350 50  0000 C CNN
F 1 "360 pF" H 8050 3550 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D10.0mm_W2.5mm_P5.00mm" H 8250 3450 50  0001 C CNN
F 3 "~" H 8250 3450 50  0001 C CNN
F 4 "Ceramic" H 8250 3450 50  0001 C CNN "Type"
F 5 "360p" H 8250 3450 50  0001 C CNN "Silkscreen Value"
	1    8250 3450
	-1   0    0    1   
$EndComp
Wire Wire Line
	8250 3250 8250 3350
Connection ~ 8250 3250
$Comp
L power:GND #PWR?
U 1 1 5DA5BA21
P 8250 3650
AR Path="/5D9136A4/5DA5BA21" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA21" Ref="#PWR0144"  Part="1" 
F 0 "#PWR0144" H 8250 3400 50  0001 C CNN
F 1 "GND" H 8255 3477 50  0001 C CNN
F 2 "" H 8250 3650 50  0001 C CNN
F 3 "" H 8250 3650 50  0001 C CNN
	1    8250 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 3550 8250 3650
NoConn ~ 7100 3050
$Comp
L Device:C_Small C?
U 1 1 5DA5BA29
P 6350 2850
AR Path="/5D9136A4/5DA5BA29" Ref="C?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA29" Ref="C89"  Part="1" 
F 0 "C89" V 6400 2950 50  0000 C CNN
F 1 "51 pF" V 6250 2850 50  0000 C CNN
F 2 "Capacitor_THT:C_Disc_D10.0mm_W2.5mm_P5.00mm" H 6350 2850 50  0001 C CNN
F 3 "~" H 6350 2850 50  0001 C CNN
F 4 "Ceramic" H 6350 2850 50  0001 C CNN "Type"
F 5 "581-SA102A510JAA" H 6350 2850 50  0001 C CNN "Mouser Part"
F 6 "51p" H 6350 2850 50  0001 C CNN "Silkscreen Value"
	1    6350 2850
	0    -1   -1   0   
$EndComp
Wire Wire Line
	7100 2850 6550 2850
$Comp
L Device:R R?
U 1 1 5DA5BA30
P 6550 2550
AR Path="/5D9136A4/5DA5BA30" Ref="R?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA30" Ref="R21"  Part="1" 
F 0 "R21" H 6650 2700 50  0000 C CNN
F 1 "470k" V 6550 2550 50  0000 C CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" V 6480 2550 50  0001 C CNN
F 3 "~" H 6550 2550 50  0001 C CNN
F 4 "660-MF1/4LCT52R474J" H 6550 2550 50  0001 C CNN "Mouser Part"
	1    6550 2550
	1    0    0    -1  
$EndComp
$Comp
L Device:R R?
U 1 1 5DA5BA36
P 6150 2550
AR Path="/5D9136A4/5DA5BA36" Ref="R?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA36" Ref="R20"  Part="1" 
F 0 "R20" H 6050 2700 50  0000 C CNN
F 1 "10k" V 6150 2550 50  0000 C CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" V 6080 2550 50  0001 C CNN
F 3 "~" H 6150 2550 50  0001 C CNN
F 4 "660-MF1/4LCT52R103J" H 6150 2550 50  0001 C CNN "Mouser Part"
	1    6150 2550
	1    0    0    -1  
$EndComp
Wire Wire Line
	6550 2700 6550 2850
Connection ~ 6550 2850
Wire Wire Line
	6550 2850 6450 2850
Wire Wire Line
	6250 2850 6150 2850
Wire Wire Line
	6150 2850 6150 2700
$Comp
L power:+5V #PWR?
U 1 1 5DA5BA4B
P 9150 1950
AR Path="/5D9136A4/5DA5BA4B" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA4B" Ref="#PWR0145"  Part="1" 
F 0 "#PWR0145" H 9150 1800 50  0001 C CNN
F 1 "+5V" H 9165 2123 50  0000 C CNN
F 2 "" H 9150 1950 50  0001 C CNN
F 3 "" H 9150 1950 50  0001 C CNN
	1    9150 1950
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 1950 9150 2250
Wire Wire Line
	9150 2650 9150 2850
Wire Wire Line
	9150 2850 9300 2850
Wire Wire Line
	9000 2850 9150 2850
Connection ~ 9150 2850
Text HLabel 9300 2850 2    50   Output ~ 0
~NMI
$Comp
L 74xx:74LS06 U?
U 1 1 5DA5BA58
P 5750 2850
AR Path="/5D9136A4/5DA5BA58" Ref="U?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA58" Ref="U37"  Part="1" 
F 0 "U37" H 5750 3167 50  0000 C CNN
F 1 "7406" H 5750 3076 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5750 2850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS06" H 5750 2850 50  0001 C CNN
F 4 "595-SN74LS06N" H 5750 2850 50  0001 C CNN "Mouser Part"
	1    5750 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	6050 2850 6150 2850
Connection ~ 6150 2850
$Comp
L 74xx:74LS14 U?
U 4 1 5DA5BA60
P 5000 2850
AR Path="/5D9136A4/5DA5BA60" Ref="U?"  Part="4" 
AR Path="/5DA44980/5DA449C5/5DA5BA60" Ref="U16"  Part="4" 
F 0 "U16" H 5000 3167 50  0000 C CNN
F 1 "74LS14" H 5000 3076 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5000 2850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS14" H 5000 2850 50  0001 C CNN
F 4 "595-SN74LS14N" H 5000 2850 50  0001 C CNN "Mouser Part"
	4    5000 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5300 2850 5450 2850
$Comp
L Device:R R?
U 1 1 5DA5BA67
P 4500 2550
AR Path="/5D9136A4/5DA5BA67" Ref="R?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA67" Ref="R9"  Part="1" 
F 0 "R9" H 4400 2550 50  0000 C CNN
F 1 "10k" V 4500 2550 50  0000 C CNN
F 2 "Open128:R_Axial_DIN0309_L9.0mm_D2.5mm_P12.70mm_Horizontal" V 4430 2550 50  0001 C CNN
F 3 "~" H 4500 2550 50  0001 C CNN
F 4 "660-MF1/4LCT52R103J" H 4500 2550 50  0001 C CNN "Mouser Part"
	1    4500 2550
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5DA5BA6D
P 4500 2300
AR Path="/5D9136A4/5DA5BA6D" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA6D" Ref="#PWR0146"  Part="1" 
F 0 "#PWR0146" H 4500 2150 50  0001 C CNN
F 1 "+5V" H 4515 2473 50  0000 C CNN
F 2 "" H 4500 2300 50  0001 C CNN
F 3 "" H 4500 2300 50  0001 C CNN
	1    4500 2300
	1    0    0    -1  
$EndComp
Wire Wire Line
	4500 2300 4500 2400
Wire Wire Line
	4500 2700 4500 2850
Wire Wire Line
	4500 2850 4700 2850
Wire Wire Line
	4500 2850 2750 2850
Connection ~ 4500 2850
$Comp
L power:GND #PWR?
U 1 1 5DA5BA79
P 7600 3650
AR Path="/5D9136A4/5DA5BA79" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DA5BA79" Ref="#PWR0147"  Part="1" 
F 0 "#PWR0147" H 7600 3400 50  0001 C CNN
F 1 "GND" H 7605 3477 50  0001 C CNN
F 2 "" H 7600 3650 50  0001 C CNN
F 3 "" H 7600 3650 50  0001 C CNN
	1    7600 3650
	1    0    0    -1  
$EndComp
Wire Wire Line
	7600 3450 7600 3650
$Comp
L Connector:DB25_Female_MountingHoles CN5
U 1 1 5DA5C34E
P 900 3850
F 0 "CN5" H 818 5175 50  0000 C CNN
F 1 "Conn_01x25" H 818 5176 50  0001 C CNN
F 2 "Connector_Dsub:DSUB-25_Female_Horizontal_P2.77x2.84mm_EdgePinOffset7.70mm_Housed_MountingHolesOffset9.12mm" H 900 3850 50  0001 C CNN
F 3 "~" H 900 3850 50  0001 C CNN
	1    900  3850
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7600 2250 7600 2650
Wire Wire Line
	8250 2250 9150 2250
Connection ~ 9150 2250
Wire Wire Line
	9150 2250 9150 2350
Wire Wire Line
	8250 2250 7600 2250
Connection ~ 8250 2250
Wire Wire Line
	7100 3250 6950 3250
Wire Wire Line
	6950 3250 6950 2250
Wire Wire Line
	6950 2250 7600 2250
Connection ~ 7600 2250
Wire Wire Line
	6550 2400 6550 2250
Wire Wire Line
	6550 2250 6950 2250
Connection ~ 6950 2250
Wire Wire Line
	6550 2250 6150 2250
Wire Wire Line
	6150 2250 6150 2400
Connection ~ 6550 2250
Text Label 2850 2850 0    50   ~ 0
RESTORE
$Sheet
S 1650 2450 1100 2700
U 5DAF4F1D
F0 "Key-EMI" 50
F1 "keyboard-emi.sch" 50
F2 "IN_COL0" B L 1650 5050 50 
F3 "IN_COL1" B L 1650 3750 50 
F4 "IN_COL2" B L 1650 3550 50 
F5 "IN_COL3" B L 1650 3350 50 
F6 "IN_COL4" B L 1650 3150 50 
F7 "IN_COL5" B L 1650 2950 50 
F8 "IN_COL6" B L 1650 2750 50 
F9 "IN_COL7" B L 1650 3950 50 
F10 "OUT_COL0" B R 2750 3850 50 
F11 "OUT_COL1" B R 2750 3950 50 
F12 "OUT_COL2" B R 2750 4050 50 
F13 "OUT_COL3" B R 2750 4150 50 
F14 "OUT_COL4" B R 2750 4250 50 
F15 "OUT_COL5" B R 2750 4350 50 
F16 "OUT_COL6" B R 2750 4450 50 
F17 "OUT_COL7" B R 2750 4550 50 
F18 "IN_ROW0" B L 1650 4850 50 
F19 "IN_ROW1" B L 1650 4650 50 
F20 "IN_ROW2" B L 1650 4450 50 
F21 "IN_ROW3" B L 1650 3450 50 
F22 "IN_ROW4" B L 1650 4050 50 
F23 "IN_ROW5" B L 1650 3850 50 
F24 "IN_ROW6" B L 1650 3650 50 
F25 "IN_ROW7" B L 1650 4250 50 
F26 "OUT_ROW0" B R 2750 3050 50 
F27 "OUT_ROW1" B R 2750 3150 50 
F28 "OUT_ROW2" B R 2750 3250 50 
F29 "OUT_ROW3" B R 2750 3350 50 
F30 "OUT_ROW4" B R 2750 3450 50 
F31 "OUT_ROW5" B R 2750 3550 50 
F32 "OUT_ROW6" B R 2750 3650 50 
F33 "OUT_ROW7" B R 2750 3750 50 
F34 "IN_K0" B L 1650 4150 50 
F35 "IN_K1" B L 1650 4350 50 
F36 "IN_K2" B L 1650 4550 50 
F37 "OUT_K0" B R 2750 4650 50 
F38 "OUT_K1" B R 2750 4750 50 
F39 "OUT_K2" B R 2750 4850 50 
F40 "IN_4080" B L 1650 4750 50 
F41 "IN_RSTR" B L 1650 3050 50 
F42 "IN_GND" B L 1650 2650 50 
F43 "OUT_4080" B R 2750 5050 50 
F44 "OUT_RSTR" B R 2750 2850 50 
F45 "OUT_GND" B R 2750 2650 50 
$EndSheet
$Comp
L power:+5V #PWR0148
U 1 1 5DB261AE
P 1400 1650
F 0 "#PWR0148" H 1400 1500 50  0001 C CNN
F 1 "+5V" H 1415 1823 50  0000 C CNN
F 2 "" H 1400 1650 50  0001 C CNN
F 3 "" H 1400 1650 50  0001 C CNN
	1    1400 1650
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C114
U 1 1 5DB27ED4
P 1600 1900
F 0 "C114" H 1692 1946 50  0000 L CNN
F 1 "0.01 µF" H 1692 1855 50  0000 L CNN
F 2 "Capacitor_THT:C_Disc_D10.0mm_W2.5mm_P5.00mm" H 1600 1900 50  0001 C CNN
F 3 "~" H 1600 1900 50  0001 C CNN
F 4 "Ceramic" H 1600 1900 50  0001 C CNN "Type"
F 5 "581-SA105E103M" H 1600 1900 50  0001 C CNN "Mouser Part"
F 6 "25V" H 1600 1900 50  0001 C CNN "Voltage Rating"
F 7 "+80% -20%" H 1600 1900 50  0001 C CNN "Voltage Tolerance"
F 8 ".01µ" H 1600 1900 50  0001 C CNN "Silkscreen Value"
	1    1600 1900
	1    0    0    -1  
$EndComp
Wire Wire Line
	1600 1800 1400 1800
Wire Wire Line
	1400 1800 1400 1650
$Comp
L power:GND #PWR?
U 1 1 5DB2976B
P 1600 2000
AR Path="/5D9136A4/5DB2976B" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DB2976B" Ref="#PWR0149"  Part="1" 
F 0 "#PWR0149" H 1600 1750 50  0001 C CNN
F 1 "GND" H 1605 1827 50  0001 C CNN
F 2 "" H 1600 2000 50  0001 C CNN
F 3 "" H 1600 2000 50  0001 C CNN
	1    1600 2000
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5DB52653
P 3350 2700
AR Path="/5D9136A4/5DB52653" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DB52653" Ref="#PWR0150"  Part="1" 
F 0 "#PWR0150" H 3350 2450 50  0001 C CNN
F 1 "GND" H 3355 2527 50  0001 C CNN
F 2 "" H 3350 2700 50  0001 C CNN
F 3 "" H 3350 2700 50  0001 C CNN
	1    3350 2700
	1    0    0    -1  
$EndComp
Text Label 2850 5050 0    50   ~ 0
40_80
Entry Wire Line
	3200 4750 3300 4850
Entry Wire Line
	3200 4850 3300 4950
Entry Wire Line
	3200 4650 3300 4750
Wire Wire Line
	2750 4650 3200 4650
Wire Wire Line
	2750 4750 3200 4750
Wire Wire Line
	2750 4850 3200 4850
Text Label 2850 4650 0    50   ~ 0
K0
Text Label 2850 4750 0    50   ~ 0
K1
Text Label 2850 4850 0    50   ~ 0
K2
Wire Wire Line
	2750 5050 3150 5050
Wire Wire Line
	3150 5050 3150 6200
Entry Wire Line
	3450 3850 3550 3950
Entry Wire Line
	3450 3950 3550 4050
Entry Wire Line
	3450 4050 3550 4150
Entry Wire Line
	3450 4150 3550 4250
Entry Wire Line
	3450 4250 3550 4350
Entry Wire Line
	3450 4350 3550 4450
Entry Wire Line
	3450 4450 3550 4550
Entry Wire Line
	3450 4550 3550 4650
Wire Wire Line
	3450 3850 2750 3850
Wire Wire Line
	2750 3950 3450 3950
Wire Wire Line
	2750 4050 3450 4050
Wire Wire Line
	3450 4150 2750 4150
Wire Wire Line
	2750 4250 3450 4250
Wire Wire Line
	3450 4350 2750 4350
Wire Wire Line
	2750 4450 3450 4450
Wire Wire Line
	3450 4550 2750 4550
Text Label 2850 3850 0    50   ~ 0
COL0
Text Label 2850 3950 0    50   ~ 0
COL1
Text Label 2850 4050 0    50   ~ 0
COL2
Text Label 2850 4150 0    50   ~ 0
COL3
Text Label 2850 4250 0    50   ~ 0
COL4
Text Label 2850 4350 0    50   ~ 0
COL5
Text Label 2850 4450 0    50   ~ 0
COL6
Text Label 2850 4550 0    50   ~ 0
COL7
Text HLabel 3550 6500 3    50   BiDi ~ 0
COL[0..7]
Entry Wire Line
	3750 3050 3850 3150
Entry Wire Line
	3750 3150 3850 3250
Entry Wire Line
	3750 3250 3850 3350
Entry Wire Line
	3750 3350 3850 3450
Entry Wire Line
	3750 3450 3850 3550
Entry Wire Line
	3750 3550 3850 3650
Entry Wire Line
	3750 3650 3850 3750
Entry Wire Line
	3750 3750 3850 3850
Wire Wire Line
	2750 3050 3750 3050
Wire Wire Line
	3750 3150 2750 3150
Wire Wire Line
	2750 3250 3750 3250
Wire Wire Line
	3750 3350 2750 3350
Wire Wire Line
	2750 3450 3750 3450
Wire Wire Line
	3750 3550 2750 3550
Wire Wire Line
	2750 3650 3750 3650
Wire Wire Line
	3750 3750 2750 3750
Text Label 2850 3050 0    50   ~ 0
ROW0
Text Label 2850 3150 0    50   ~ 0
ROW1
Text Label 2850 3250 0    50   ~ 0
ROW2
Text Label 2850 3350 0    50   ~ 0
ROW3
Text Label 2850 3450 0    50   ~ 0
ROW4
Text Label 2850 3550 0    50   ~ 0
ROW5
Text Label 2850 3650 0    50   ~ 0
ROW6
Text Label 2850 3750 0    50   ~ 0
ROW7
Text HLabel 3850 6500 3    50   BiDi ~ 0
ROW[0..7]
$Comp
L Open128:R_Network09_Split RP?
U 8 1 5DBA7DE6
P 2500 5900
AR Path="/5D9136A4/5DBA7DE6" Ref="RP?"  Part="5" 
AR Path="/5DA44980/5DA449C5/5DBA7DE6" Ref="RP8"  Part="8" 
F 0 "RP8" H 2588 5946 50  0000 L CNN
F 1 "3.3k" H 2588 5855 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP10" H 2550 5775 50  0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 2500 5900 50  0001 C CNN
F 4 "652-4610X-1LF-3.3K" H 2500 5900 50  0001 C CNN "Mouser Part"
	8    2500 5900
	1    0    0    -1  
$EndComp
$Comp
L Open128:R_Network09_Split RP?
U 9 1 5DBAB29B
P 1900 5900
AR Path="/5D9136A4/5DBAB29B" Ref="RP?"  Part="5" 
AR Path="/5DA44980/5DA449C5/5DBAB29B" Ref="RP8"  Part="9" 
F 0 "RP8" H 1988 5946 50  0000 L CNN
F 1 "3.3k" H 1988 5855 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP10" H 1950 5775 50  0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 1900 5900 50  0001 C CNN
F 4 "652-4610X-1LF-3.3K" H 1900 5900 50  0001 C CNN "Mouser Part"
	9    1900 5900
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5DBBC6C8
P 2200 5650
AR Path="/5D9136A4/5DBBC6C8" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5DBBC6C8" Ref="#PWR0151"  Part="1" 
F 0 "#PWR0151" H 2200 5500 50  0001 C CNN
F 1 "+5V" H 2215 5823 50  0000 C CNN
F 2 "" H 2200 5650 50  0001 C CNN
F 3 "" H 2200 5650 50  0001 C CNN
	1    2200 5650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1900 6050 1900 6200
Wire Wire Line
	1900 6200 1500 6200
Wire Wire Line
	1500 6200 1500 6500
Wire Wire Line
	2500 6050 2500 6200
Wire Wire Line
	2500 6200 3150 6200
Connection ~ 3150 6200
Wire Wire Line
	3150 6200 3150 6500
Wire Wire Line
	1900 5750 1900 5650
Wire Wire Line
	1900 5650 2200 5650
Wire Wire Line
	2500 5750 2500 5650
Wire Wire Line
	2500 5650 2200 5650
Connection ~ 2200 5650
Wire Wire Line
	3350 2650 3350 2700
Wire Wire Line
	2750 2650 3350 2650
$Comp
L Open128:R_Network08_Split RP2
U 4 1 5DAAD478
P 9150 2500
F 0 "RP2" H 9238 2546 50  0000 L CNN
F 1 "1k" V 9150 2450 50  0000 L CNN
F 2 "Resistor_THT:R_Array_SIP9" H 9200 2375 50  0001 L CNN
F 3 "http://www.vishay.com/docs/31509/csc.pdf" H 9150 2500 50  0001 C CNN
F 4 "652-4609X-1LF-1K" H 9150 2500 50  0001 C CNN "Mouser Part"
	4    9150 2500
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5F335BB4
P 900 5350
AR Path="/5D9136A4/5F335BB4" Ref="#PWR?"  Part="1" 
AR Path="/5DA44980/5DA449C5/5F335BB4" Ref="#PWR0444"  Part="1" 
F 0 "#PWR0444" H 900 5100 50  0001 C CNN
F 1 "GND" H 905 5177 50  0001 C CNN
F 2 "" H 900 5350 50  0001 C CNN
F 3 "" H 900 5350 50  0001 C CNN
	1    900  5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	900  5250 900  5350
Wire Wire Line
	1200 2650 1650 2650
NoConn ~ 1200 2850
Wire Wire Line
	1500 6200 1500 4950
Wire Wire Line
	1500 4950 1200 4950
Connection ~ 1500 6200
Wire Wire Line
	1650 5050 1200 5050
Wire Wire Line
	1200 4850 1650 4850
Wire Wire Line
	1200 4750 1650 4750
Wire Wire Line
	1200 4650 1650 4650
Wire Wire Line
	1650 4550 1200 4550
Wire Wire Line
	1650 4350 1200 4350
Wire Wire Line
	1650 4150 1200 4150
Wire Wire Line
	1650 3950 1200 3950
Wire Wire Line
	1650 3750 1200 3750
Wire Wire Line
	1650 3550 1200 3550
Wire Wire Line
	1650 3150 1200 3150
Wire Wire Line
	1200 3350 1650 3350
Wire Wire Line
	1650 2950 1200 2950
Wire Wire Line
	1650 2750 1200 2750
Wire Wire Line
	1650 4450 1200 4450
Wire Wire Line
	1650 4250 1200 4250
Wire Wire Line
	1650 4050 1200 4050
Wire Wire Line
	1650 3850 1200 3850
Wire Wire Line
	1650 3650 1200 3650
Wire Wire Line
	1650 3450 1200 3450
Wire Wire Line
	1200 3250 1400 3250
Wire Wire Line
	1400 3250 1400 1800
Connection ~ 1400 1800
Wire Wire Line
	1650 3050 1200 3050
Wire Bus Line
	3300 4750 3300 6500
Wire Bus Line
	3850 3150 3850 6500
Wire Bus Line
	3550 3950 3550 6500
Text GLabel 1500 6500 3    50   Output ~ 0
CAPSLK
Text GLabel 3150 6500 3    50   Output ~ 0
40_80
Text GLabel 3300 6500 3    50   Output ~ 0
K[0..2]
$EndSCHEMATC