HALT.sch

EESchema Schematic File Version 4
LIBS:8080-HC-cache
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 12 15
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
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$Comp
L 74xx:74HC00 U?
U 3 1 6304FCAE
P 2400 1850
AR Path="/612F25B0/6304FCAE" Ref="U?"  Part="3" 
AR Path="/6304B7FE/6304FCAE" Ref="U3"  Part="3" 
F 0 "U3" H 2400 2175 50  0000 C CNN
F 1 "74HC00" H 2400 2084 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 2400 1850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74hc00" H 2400 1850 50  0001 C CNN
	3    2400 1850
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74HC00 U?
U 4 1 6304FCB4
P 4000 1950
AR Path="/612F25B0/6304FCB4" Ref="U?"  Part="4" 
AR Path="/6304B7FE/6304FCB4" Ref="U3"  Part="4" 
F 0 "U3" H 4000 2275 50  0000 C CNN
F 1 "74HC00" H 4000 2184 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4000 1950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74hc00" H 4000 1950 50  0001 C CNN
	4    4000 1950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS03 U?
U 4 1 6304FCBA
P 7200 3000
AR Path="/612F25B0/6304FCBA" Ref="U?"  Part="4" 
AR Path="/6304B7FE/6304FCBA" Ref="U84"  Part="4" 
F 0 "U84" H 7200 3325 50  0000 C CNN
F 1 "74HC03" H 7200 3234 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 7200 3000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74hc00" H 7200 3000 50  0001 C CNN
	4    7200 3000
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74HC04 U?
U 6 1 6304FCC0
P 5700 1950
AR Path="/612F25B0/6304FCC0" Ref="U?"  Part="6" 
AR Path="/6304B7FE/6304FCC0" Ref="U49"  Part="6" 
F 0 "U49" H 5700 2267 50  0000 C CNN
F 1 "74HC04" H 5700 2176 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5700 1950 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/74HC_HCT04.pdf" H 5700 1950 50  0001 C CNN
	6    5700 1950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS126 U?
U 3 1 6304FCE4
P 5700 2900
AR Path="/612F25B0/6304FCE4" Ref="U?"  Part="3" 
AR Path="/6304B7FE/6304FCE4" Ref="U88"  Part="3" 
F 0 "U88" H 6000 2850 50  0000 C CNN
F 1 "74HC126" H 6100 2950 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 5700 2900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS126" H 5700 2900 50  0001 C CNN
	3    5700 2900
	1    0    0    1   
$EndComp
$Comp
L 74xx:74HC00 U?
U 1 1 6306A85F
P 4000 2900
AR Path="/612F25B0/6306A85F" Ref="U?"  Part="4" 
AR Path="/6304B7FE/6306A85F" Ref="U91"  Part="1" 
F 0 "U91" H 4000 3225 50  0000 C CNN
F 1 "74HC00" H 4000 3134 50  0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4000 2900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74hc00" H 4000 2900 50  0001 C CNN
	1    4000 2900
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74HC00 U?
U 5 1 6306BE70
P 4000 5750
AR Path="/612F25B0/6306BE70" Ref="U?"  Part="4" 
AR Path="/6304B7FE/6306BE70" Ref="U244"  Part="5" 
F 0 "U244" H 4230 5796 50  0000 L CNN
F 1 "74HC00" H 4230 5705 50  0000 L CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4000 5750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74hc00" H 4000 5750 50  0001 C CNN
	5    4000 5750
	1    0    0    -1  
$EndComp
Text HLabel 1750 1750 0    50   Input ~ 0
HALT
Wire Wire Line
	1750 1750 2100 1750
Text HLabel 1750 1950 0    50   Input ~ 0
T2
Wire Wire Line
	1750 1950 2100 1950
Wire Wire Line
	2700 1850 3700 1850
Wire Wire Line
	3700 3000 1750 3000
Text HLabel 1750 3000 0    50   Input ~ 0
HLTclr
Text HLabel 4500 2900 2    50   Output ~ 0
PCckdE2
Wire Wire Line
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Wire Wire Line
	5400 2900 5200 2900
Wire Wire Line
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Connection ~ 5200 1950
Wire Wire Line
	5200 1950 5400 1950
Wire Wire Line
	4500 2900 4400 2900
Wire Wire Line
	4400 2900 4400 2600
Connection ~ 4400 2900
Wire Wire Line
	4400 2900 4300 2900
Wire Wire Line
	3700 2800 3600 2800
Wire Wire Line
	3600 2800 3600 2600
Wire Wire Line
	3700 2050 3600 2050
Wire Wire Line
	3600 2050 3600 2250
Wire Wire Line
	4400 1950 4400 2250
Connection ~ 4400 1950
Wire Wire Line
	4400 1950 5200 1950
Wire Wire Line
	3600 2250 4400 2600
Wire Wire Line
	3600 2600 4400 2250
Wire Wire Line
	6000 2900 6900 2900
$Comp
L power:VCC #PWR0184
U 1 1 630DC22E
P 5700 2650
F 0 "#PWR0184" H 5700 2500 50  0001 C CNN
F 1 "VCC" H 5717 2823 50  0000 C CNN
F 2 "" H 5700 2650 50  0001 C CNN
F 3 "" H 5700 2650 50  0001 C CNN
	1    5700 2650
	1    0    0    -1  
$EndComp
Text HLabel 6700 3100 0    50   Input ~ 0
T4
Wire Wire Line
	6700 3100 6900 3100
Text HLabel 7700 3000 2    50   Output ~ 0
MCLR
Wire Wire Line
	7700 3000 7500 3000
Text HLabel 6250 1950 2    50   Output ~ 0
HLTA
Wire Wire Line
	6000 1950 6100 1950
Wire Wire Line
	6100 1950 6100 1800
Connection ~ 6100 1950
Wire Wire Line
	6100 1950 6250 1950
$Comp
L Device:LED_Small_ALT D152
U 1 1 630E41A2
P 6100 1700
F 0 "D152" V 6146 1632 50  0000 R CNN
F 1 "LED_Small_ALT" V 6055 1632 50  0000 R CNN
F 2 "LED_THT:LED_D3.0mm" V 6100 1700 50  0001 C CNN
F 3 "~" V 6100 1700 50  0001 C CNN
	1    6100 1700
	0    -1   -1   0   
$EndComp
$Comp
L Device:R R44
U 1 1 630E5590
P 6100 1450
F 0 "R44" H 6170 1496 50  0000 L CNN
F 1 "R" H 6170 1405 50  0000 L CNN
F 2 "Resistor_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P5.08mm_Horizontal" V 6030 1450 50  0001 C CNN
F 3 "~" H 6100 1450 50  0001 C CNN
	1    6100 1450
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0185
U 1 1 630E67E3
P 6100 1300
F 0 "#PWR0185" H 6100 1150 50  0001 C CNN
F 1 "VCC" H 6117 1473 50  0000 C CNN
F 2 "" H 6100 1300 50  0001 C CNN
F 3 "" H 6100 1300 50  0001 C CNN
	1    6100 1300
	1    0    0    -1  
$EndComp
$Comp
L power:VCC #PWR0186
U 1 1 630E6DE7
P 4000 5100
F 0 "#PWR0186" H 4000 4950 50  0001 C CNN
F 1 "VCC" H 4017 5273 50  0000 C CNN
F 2 "" H 4000 5100 50  0001 C CNN
F 3 "" H 4000 5100 50  0001 C CNN
	1    4000 5100
	1    0    0    -1  
$EndComp
Wire Wire Line
	4000 5100 4000 5250
$Comp
L power:GND #PWR0187
U 1 1 630FA3E1
P 4000 6350
F 0 "#PWR0187" H 4000 6100 50  0001 C CNN
F 1 "GND" H 4005 6177 50  0000 C CNN
F 2 "" H 4000 6350 50  0001 C CNN
F 3 "" H 4000 6350 50  0001 C CNN
	1    4000 6350
	1    0    0    -1  
$EndComp
Wire Wire Line
	4000 6250 4000 6350
$EndSCHEMATC