EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 3 8
Title "NuBus-ESP32"
Date "2021-11-18"
Rev "0.1"
Comp "Garrett's Workshop"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Text HLabel 10250 4000 2    50   Output ~ 0
ROM~OE~
Text HLabel 10250 3600 2    50   Output ~ 0
ROM~WE~
Text HLabel 10250 3200 2    50   Output ~ 0
REG~OE~
Text HLabel 10250 2800 2    50   Output ~ 0
REG~WE~
Text Label 9250 3500 2    50   ~ 0
~WE~
Text Label 9250 3100 2    50   ~ 0
~OE~
Text Label 9250 3300 2    50   ~ 0
LA19
Text Label 9250 3900 2    50   ~ 0
~OE~
Text Label 9250 2900 2    50   ~ 0
LA19
Text Label 9250 2700 2    50   ~ 0
~WE~
Text Label 9250 4100 2    50   ~ 0
L~A~19
Wire Wire Line
	9050 3700 9250 3700
Wire Wire Line
	9050 4100 9250 4100
Wire Wire Line
	9250 3900 8950 3900
Wire Wire Line
	8950 3100 9250 3100
Wire Wire Line
	9250 3500 9050 3500
Wire Wire Line
	9050 3500 9050 2700
Wire Wire Line
	9050 2700 9250 2700
Wire Wire Line
	8850 3300 9250 3300
Wire Wire Line
	8850 2900 9250 2900
Wire Wire Line
	8250 4100 9050 4100
Connection ~ 9050 4100
Wire Wire Line
	9150 4750 9550 4750
Wire Wire Line
	9150 5300 9550 5300
Wire Wire Line
	9150 5850 9550 5850
Wire Wire Line
	9150 4750 9150 5300
Connection ~ 9150 5300
Wire Wire Line
	9150 5300 9150 5850
Connection ~ 9150 4750
$Comp
L 74xx:74LS32 U?
U 2 2 61EBF8DC
P 9550 3200
AR Path="/61EBF8DC" Ref="U?"  Part="1" 
AR Path="/61D1084D/61EBF8DC" Ref="U25"  Part="2" 
F 0 "U25" H 9550 3200 50  0000 C CNN
F 1 "74LVC32AD" H 9550 3400 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 3200 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 9550 3200 50  0001 C CNN
	2    9550 3200
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 4 2 61EBF8E8
P 9550 4000
AR Path="/61EBF8E8" Ref="U?"  Part="1" 
AR Path="/61D1084D/61EBF8E8" Ref="U25"  Part="4" 
F 0 "U25" H 9550 4000 50  0000 C CNN
F 1 "74LVC32AD" H 9550 4200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 4000 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 9550 4000 50  0001 C CNN
	4    9550 4000
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 1 2 61EBF954
P 9550 2800
AR Path="/61EBF954" Ref="U?"  Part="1" 
AR Path="/61D1084D/61EBF954" Ref="U25"  Part="1" 
F 0 "U25" H 9550 2800 50  0000 C CNN
F 1 "74LVC32AD" H 9550 3000 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 2800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 9550 2800 50  0001 C CNN
	1    9550 2800
	1    0    0    -1  
$EndComp
Text HLabel 10250 4400 2    50   BiDi ~ 0
~TM~[1..0]
Text Label 9850 4500 0    50   ~ 0
~TM~0
Text Label 9850 5050 0    50   ~ 0
~TM~1
Text HLabel 10250 5600 2    50   BiDi ~ 0
~ACK~
Wire Wire Line
	10050 4500 9850 4500
Entry Wire Line
	10150 4950 10050 5050
Wire Wire Line
	10050 5050 9850 5050
Entry Wire Line
	10150 4400 10050 4500
Wire Bus Line
	10150 4950 10150 4400
Wire Bus Line
	10250 4400 10150 4400
Wire Wire Line
	6050 4850 6250 4850
Text Label 6250 4850 2    50   ~ 0
~CLK~
Text Label 6250 4750 2    50   ~ 0
~CSTART~
Wire Wire Line
	6250 5150 6550 5150
$Comp
L 74xx:74LS74 U?
U 2 1 620C3058
P 7550 4850
AR Path="/620C3058" Ref="U?"  Part="1" 
AR Path="/61CA157A/620C3058" Ref="U?"  Part="1" 
AR Path="/61CD3565/620C3058" Ref="U?"  Part="1" 
AR Path="/61D1084D/620C3058" Ref="U17"  Part="2" 
F 0 "U17" H 7550 4850 50  0000 C CNN
F 1 "74LVC74AD" H 7800 4600 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 7550 4850 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 7550 4850 50  0001 C CNN
	2    7550 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	7250 5150 7550 5150
Text Label 6850 4950 0    50   ~ 0
ACK-2
Text Label 6850 4750 0    50   ~ 0
~ACK~-2
Text Label 7850 4750 0    50   ~ 0
~ACK~-1
Wire Wire Line
	7250 4850 7150 4850
Wire Wire Line
	7150 4850 7150 5250
Wire Wire Line
	7150 5250 6050 5250
Wire Wire Line
	6050 5250 6050 4850
Wire Wire Line
	7250 4750 6850 4750
Wire Wire Line
	8150 5350 8150 4850
$Comp
L 74xx:74LS74 U?
U 1 1 620D4157
P 8550 4850
AR Path="/620D4157" Ref="U?"  Part="1" 
AR Path="/61CA157A/620D4157" Ref="U?"  Part="1" 
AR Path="/61CD3565/620D4157" Ref="U?"  Part="1" 
AR Path="/61D1084D/620D4157" Ref="U18"  Part="1" 
F 0 "U18" H 8550 4850 50  0000 C CNN
F 1 "74LVC74AD" H 8800 4600 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 8550 4850 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 8550 4850 50  0001 C CNN
	1    8550 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	8250 5150 8550 5150
Wire Wire Line
	8250 4750 7850 4750
Wire Wire Line
	8150 4850 8250 4850
Text Label 8850 4950 0    50   ~ 0
ACK-0
Text Label 8850 4750 0    50   ~ 0
~ACK~-0
Wire Wire Line
	4950 4950 5050 4950
Text HLabel 4950 4950 0    50   Input ~ 0
CLK
Wire Wire Line
	8250 3200 8250 4100
Wire Wire Line
	8850 4750 9150 4750
Wire Wire Line
	9250 5600 9250 5050
Connection ~ 9250 5050
Wire Wire Line
	9250 5050 9250 4500
Text Label 8300 4100 0    50   ~ 0
L~A~19
Entry Wire Line
	8150 4200 8250 4100
Text Label 9250 3700 2    50   ~ 0
L~A~19
Text Label 7450 4000 2    50   ~ 0
L~TM~1
Text Label 8050 3900 0    50   ~ 0
~OE~
Wire Wire Line
	6450 4000 7450 4000
Entry Wire Line
	6350 4100 6450 4000
Text HLabel 6250 4100 0    50   Input ~ 0
L~TM~[1..0]
$Comp
L power:GND #PWR0106
U 1 1 62597DA4
P 9250 5600
F 0 "#PWR0106" H 9250 5350 50  0001 C CNN
F 1 "GND" H 9250 5450 50  0000 C CNN
F 2 "" H 9250 5600 50  0001 C CNN
F 3 "" H 9250 5600 50  0001 C CNN
	1    9250 5600
	1    0    0    -1  
$EndComp
Text Label 8050 3500 0    50   ~ 0
~WE~
$Comp
L 74xx:74LS32 U?
U 3 2 61EBF8E2
P 9550 3600
AR Path="/61EBF8E2" Ref="U?"  Part="1" 
AR Path="/61D1084D/61EBF8E2" Ref="U25"  Part="3" 
F 0 "U25" H 9550 3600 50  0000 C CNN
F 1 "74LVC32AD" H 9550 3800 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 3600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 9550 3600 50  0001 C CNN
	3    9550 3600
	1    0    0    -1  
$EndComp
Wire Wire Line
	8950 3100 8950 3900
Wire Wire Line
	9050 3700 9050 4100
Wire Bus Line
	6250 4100 6350 4100
Wire Wire Line
	9850 5600 10250 5600
Text HLabel 6350 7300 0    50   Input ~ 0
~ID~[3..0]
Text HLabel 6350 6900 0    50   BiDi ~ 0
~AD~[31..0]
Wire Bus Line
	6450 7300 6350 7300
Wire Bus Line
	6450 6900 6350 6900
Text Label 6750 7200 2    50   ~ 0
~ID~3
Text Label 6750 7500 2    50   ~ 0
~ID~0
Text Label 6750 7400 2    50   ~ 0
~ID~1
Text Label 6750 7300 2    50   ~ 0
~ID~2
Wire Wire Line
	6550 6800 6750 6800
Wire Wire Line
	6550 6900 6750 6900
Wire Wire Line
	6550 7000 6750 7000
Wire Wire Line
	6550 7100 6750 7100
Text Label 6750 7100 2    50   ~ 0
~AD~28
Text Label 6750 7000 2    50   ~ 0
~AD~29
Text Label 6750 6900 2    50   ~ 0
~AD~30
Text Label 6750 6800 2    50   ~ 0
~AD~31
Entry Wire Line
	6450 7200 6550 7100
Entry Wire Line
	6450 7100 6550 7000
Entry Wire Line
	6450 7000 6550 6900
Entry Wire Line
	6450 6900 6550 6800
Entry Wire Line
	6450 7300 6550 7200
Entry Wire Line
	6450 7400 6550 7300
Entry Wire Line
	6450 7500 6550 7400
Entry Wire Line
	6450 7600 6550 7500
Wire Wire Line
	6550 7500 6750 7500
Wire Wire Line
	6550 7400 6750 7400
Wire Wire Line
	6550 7300 6750 7300
Wire Wire Line
	6550 7200 6750 7200
Text Label 4850 2850 2    50   ~ 0
~CSTART~
Wire Wire Line
	4550 2850 4850 2850
$Comp
L 74xx:74LS32 U?
U 4 2 62CB8AD8
P 4250 2850
AR Path="/62CB8AD8" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8AD8" Ref="U21"  Part="4" 
F 0 "U21" H 4250 2850 50  0000 C CNN
F 1 "74LVC32AD" H 4250 3050 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 4250 2850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 4250 2850 50  0001 C CNN
	4    4250 2850
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 2950 3650 3350
Text Label 2850 3250 0    50   ~ 0
START
Wire Wire Line
	2850 3250 3050 3250
Wire Wire Line
	3950 2750 3650 2750
Wire Wire Line
	3950 2950 3650 2950
Wire Wire Line
	1050 3450 3050 3450
Wire Wire Line
	2250 2850 2250 2950
Wire Wire Line
	2250 2550 2250 2650
Wire Wire Line
	2250 2050 2250 2150
Wire Wire Line
	2250 1750 2250 1850
$Comp
L 74xx:74LS86 U?
U 2 1 62CB8B0B
P 1950 2550
AR Path="/62CB8B0B" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B0B" Ref="U20"  Part="2" 
F 0 "U20" H 1950 2550 50  0000 C CNN
F 1 "74LVC86AD" H 1950 2750 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1950 2550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS86" H 1950 2550 50  0001 C CNN
	2    1950 2550
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS86 U?
U 3 1 62CB8B11
P 1950 2950
AR Path="/62CB8B11" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B11" Ref="U20"  Part="3" 
F 0 "U20" H 1950 2950 50  0000 C CNN
F 1 "74LVC86AD" H 1950 3150 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1950 2950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS86" H 1950 2950 50  0001 C CNN
	3    1950 2950
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS86 U?
U 4 1 62CB8B17
P 1950 1750
AR Path="/62CB8B17" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B17" Ref="U20"  Part="4" 
F 0 "U20" H 1950 1750 50  0000 C CNN
F 1 "74LVC86AD" H 1950 1950 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1950 1750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS86" H 1950 1750 50  0001 C CNN
	4    1950 1750
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 2350 3650 2750
Text Label 3950 2950 2    50   ~ 0
~START~ACK
Text Label 3950 2750 2    50   ~ 0
~CSEL~
Text Label 1450 1650 0    50   ~ 0
~ID~3
Text Label 1450 2850 0    50   ~ 0
~ID~0
Text Label 1450 2450 0    50   ~ 0
~ID~1
Text Label 1450 2050 0    50   ~ 0
~ID~2
Text Label 1450 1850 0    50   ~ 0
~AD~31
Text Label 1450 2250 0    50   ~ 0
~AD~30
Text Label 1450 2650 0    50   ~ 0
~AD~29
Text Label 1450 3050 0    50   ~ 0
~AD~28
Wire Wire Line
	1050 3350 2250 3350
Wire Wire Line
	1450 2850 1650 2850
Wire Wire Line
	1450 2450 1650 2450
Wire Wire Line
	1450 2050 1650 2050
Wire Wire Line
	1250 1850 1650 1850
Wire Wire Line
	1450 1650 1650 1650
Wire Notes Line
	1650 1150 1650 1350
Text Notes 1700 1350 0    50   ~ 0
Compare each bit\nusing XOR
Wire Notes Line
	2450 1150 2450 1550
Text Notes 2650 1550 0    50   ~ 0
Combine comparison\nresults to form ~CSEL~.\n~CSEL~ is low when ~AD~\nmatches this card’s\naddress.
Wire Notes Line
	2250 3600 2250 3800
Text Notes 2350 3800 0    50   ~ 0
Cycle begins when\n/START low and /ACK high.\nThis is represented by ~START~ACK.
Wire Notes Line
	3650 3600 3650 3800
Text Notes 3750 1450 0    50   ~ 0
~CSEL~ and ~START~ACK combined\nto form ~CSTART~. ~CSTART~ low\nmeans this card selected.
Wire Notes Line
	5050 1150 5050 1550
Wire Notes Line
	3650 1150 3650 1550
Wire Wire Line
	9050 3500 8050 3500
Connection ~ 9050 3500
Wire Wire Line
	8950 3900 8050 3900
Connection ~ 8950 3900
Entry Wire Line
	1350 1550 1450 1650
Entry Wire Line
	1150 1750 1250 1850
Entry Wire Line
	1350 1950 1450 2050
Entry Wire Line
	1150 2150 1250 2250
Wire Wire Line
	1250 2250 1650 2250
Entry Wire Line
	1350 2350 1450 2450
Entry Wire Line
	1150 2550 1250 2650
Wire Wire Line
	1250 2650 1650 2650
Entry Wire Line
	1350 2750 1450 2850
Entry Wire Line
	1150 2950 1250 3050
Wire Wire Line
	1250 3050 1650 3050
Wire Bus Line
	1350 1550 1050 1550
Wire Bus Line
	1050 1750 1150 1750
Text HLabel 1050 3350 0    50   Input ~ 0
~START~
Text HLabel 1050 3450 0    50   Input ~ 0
~ACK~
Text HLabel 1050 1550 0    50   Input ~ 0
~ID~[3..0]
Text HLabel 1050 1750 0    50   Input ~ 0
~AD~[31..0]
Wire Wire Line
	5050 4950 5050 5350
Connection ~ 9250 5600
$Comp
L power:+3V3 #PWR?
U 1 1 61C38174
P 6550 4550
AR Path="/61C6168C/61C38174" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C38174" Ref="#PWR0109"  Part="1" 
F 0 "#PWR0109" H 6550 4400 50  0001 C CNN
F 1 "+3V3" H 6550 4700 50  0000 C CNN
F 2 "" H 6550 4550 50  0001 C CNN
F 3 "" H 6550 4550 50  0001 C CNN
	1    6550 4550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C3B193
P 7550 4550
AR Path="/61C6168C/61C3B193" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C3B193" Ref="#PWR0110"  Part="1" 
F 0 "#PWR0110" H 7550 4400 50  0001 C CNN
F 1 "+3V3" H 7550 4700 50  0000 C CNN
F 2 "" H 7550 4550 50  0001 C CNN
F 3 "" H 7550 4550 50  0001 C CNN
	1    7550 4550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C3E09A
P 8550 4550
AR Path="/61C6168C/61C3E09A" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C3E09A" Ref="#PWR0111"  Part="1" 
F 0 "#PWR0111" H 8550 4400 50  0001 C CNN
F 1 "+3V3" H 8550 4700 50  0000 C CNN
F 2 "" H 8550 4550 50  0001 C CNN
F 3 "" H 8550 4550 50  0001 C CNN
	1    8550 4550
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C41255
P 5050 4750
AR Path="/61C6168C/61C41255" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C41255" Ref="#PWR0112"  Part="1" 
F 0 "#PWR0112" H 5050 4600 50  0001 C CNN
F 1 "+3V3" H 5050 4900 50  0000 C CNN
F 2 "" H 5050 4750 50  0001 C CNN
F 3 "" H 5050 4750 50  0001 C CNN
	1    5050 4750
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C44385
P 6250 5150
AR Path="/61C6168C/61C44385" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C44385" Ref="#PWR0113"  Part="1" 
F 0 "#PWR0113" H 6250 5000 50  0001 C CNN
F 1 "+3V3" H 6250 5300 50  0000 C CNN
F 2 "" H 6250 5150 50  0001 C CNN
F 3 "" H 6250 5150 50  0001 C CNN
	1    6250 5150
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C47220
P 7250 5150
AR Path="/61C6168C/61C47220" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C47220" Ref="#PWR0114"  Part="1" 
F 0 "#PWR0114" H 7250 5000 50  0001 C CNN
F 1 "+3V3" H 7250 5300 50  0000 C CNN
F 2 "" H 7250 5150 50  0001 C CNN
F 3 "" H 7250 5150 50  0001 C CNN
	1    7250 5150
	1    0    0    -1  
$EndComp
$Comp
L power:+3V3 #PWR?
U 1 1 61C4AC0F
P 8250 5150
AR Path="/61C6168C/61C4AC0F" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61C4AC0F" Ref="#PWR0115"  Part="1" 
F 0 "#PWR0115" H 8250 5000 50  0001 C CNN
F 1 "+3V3" H 8250 5300 50  0000 C CNN
F 2 "" H 8250 5150 50  0001 C CNN
F 3 "" H 8250 5150 50  0001 C CNN
	1    8250 5150
	1    0    0    -1  
$EndComp
Wire Wire Line
	9450 2400 9050 2400
$Comp
L Device:R_Small R11
U 1 1 61899CD6
P 9550 2400
F 0 "R11" V 9400 2400 50  0000 C CNN
F 1 "100" V 9500 2400 50  0000 C BNN
F 2 "stdpads:R_0805" H 9550 2400 50  0001 C CNN
F 3 "~" H 9550 2400 50  0001 C CNN
F 4 "C25190" H 9550 2400 50  0001 C CNN "LCSC Part"
	1    9550 2400
	0    -1   1    0   
$EndComp
Text Label 9050 2400 0    50   ~ 0
ACK-2
Text HLabel 10250 2000 2    50   Output ~ 0
B~OE~
Text HLabel 10250 2400 2    50   Output ~ 0
ACLK
Text Label 7850 4950 0    50   ~ 0
ACK-1
$Comp
L 74xx:74LS74 U?
U 1 1 620925A0
P 6550 4850
AR Path="/620925A0" Ref="U?"  Part="1" 
AR Path="/61CA157A/620925A0" Ref="U?"  Part="1" 
AR Path="/61CD3565/620925A0" Ref="U?"  Part="1" 
AR Path="/61D1084D/620925A0" Ref="U17"  Part="1" 
F 0 "U17" H 6550 4850 50  0000 C CNN
F 1 "74LVC74AD" H 6800 4600 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 6550 4850 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 6550 4850 50  0001 C CNN
	1    6550 4850
	1    0    0    -1  
$EndComp
Wire Wire Line
	5650 4850 5850 4850
Text Label 5850 4850 2    50   ~ 0
~CLK~r
Wire Wire Line
	5050 5350 8150 5350
$Comp
L Device:C_Small C?
U 1 1 62125273
P 5250 6200
AR Path="/62125273" Ref="C?"  Part="1" 
AR Path="/61D1084D/62125273" Ref="C6"  Part="1" 
F 0 "C6" H 5158 6246 50  0000 R CNN
F 1 "10u" H 5158 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 5250 6200 50  0001 C CNN
F 3 "~" H 5250 6200 50  0001 C CNN
	1    5250 6200
	-1   0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 62125279
P 6050 6200
AR Path="/62125279" Ref="C?"  Part="1" 
AR Path="/61D1084D/62125279" Ref="C8"  Part="1" 
F 0 "C8" H 5958 6246 50  0000 R CNN
F 1 "10u" H 5958 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 6050 6200 50  0001 C CNN
F 3 "~" H 6050 6200 50  0001 C CNN
	1    6050 6200
	-1   0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 6212527F
P 5650 6200
AR Path="/6212527F" Ref="C?"  Part="1" 
AR Path="/61D1084D/6212527F" Ref="C7"  Part="1" 
F 0 "C7" H 5558 6246 50  0000 R CNN
F 1 "10u" H 5558 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 5650 6200 50  0001 C CNN
F 3 "~" H 5650 6200 50  0001 C CNN
	1    5650 6200
	-1   0    0    -1  
$EndComp
$Comp
L Device:C_Small C?
U 1 1 6212528B
P 6450 6200
AR Path="/6212528B" Ref="C?"  Part="1" 
AR Path="/61D1084D/6212528B" Ref="C9"  Part="1" 
F 0 "C9" H 6358 6246 50  0000 R CNN
F 1 "10u" H 6358 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 6450 6200 50  0001 C CNN
F 3 "~" H 6450 6200 50  0001 C CNN
	1    6450 6200
	-1   0    0    -1  
$EndComp
Connection ~ 5650 6300
Wire Wire Line
	5650 6300 5250 6300
Connection ~ 6050 6300
Wire Wire Line
	6050 6300 5650 6300
Wire Wire Line
	6450 6300 6050 6300
Wire Wire Line
	5250 6100 5650 6100
Connection ~ 5650 6100
Wire Wire Line
	5650 6100 6050 6100
Connection ~ 6050 6100
Wire Wire Line
	6050 6100 6450 6100
Connection ~ 6450 6300
$Comp
L Device:C_Small C?
U 1 1 621252A9
P 8050 6200
AR Path="/621252A9" Ref="C?"  Part="1" 
AR Path="/61D1084D/621252A9" Ref="C13"  Part="1" 
F 0 "C13" H 7958 6246 50  0000 R CNN
F 1 "10u" H 7958 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 8050 6200 50  0001 C CNN
F 3 "~" H 8050 6200 50  0001 C CNN
	1    8050 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7650 6300 8050 6300
Connection ~ 7650 6300
Wire Wire Line
	8050 6100 7650 6100
Connection ~ 7650 6100
$Comp
L Device:C_Small C?
U 1 1 621252A3
P 7650 6200
AR Path="/621252A3" Ref="C?"  Part="1" 
AR Path="/61D1084D/621252A3" Ref="C12"  Part="1" 
F 0 "C12" H 7558 6246 50  0000 R CNN
F 1 "10u" H 7558 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 7650 6200 50  0001 C CNN
F 3 "~" H 7650 6200 50  0001 C CNN
	1    7650 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	6450 6300 6850 6300
Connection ~ 6850 6300
Wire Wire Line
	6850 6100 6450 6100
Connection ~ 6850 6100
$Comp
L Device:C_Small C?
U 1 1 62125297
P 6850 6200
AR Path="/62125297" Ref="C?"  Part="1" 
AR Path="/61D1084D/62125297" Ref="C10"  Part="1" 
F 0 "C10" H 6758 6246 50  0000 R CNN
F 1 "10u" H 6758 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 6850 6200 50  0001 C CNN
F 3 "~" H 6850 6200 50  0001 C CNN
	1    6850 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	7250 6300 7650 6300
Wire Wire Line
	6850 6300 7250 6300
Connection ~ 7250 6300
Wire Wire Line
	7650 6100 7250 6100
Wire Wire Line
	7250 6100 6850 6100
Connection ~ 7250 6100
$Comp
L Device:C_Small C?
U 1 1 62125291
P 7250 6200
AR Path="/62125291" Ref="C?"  Part="1" 
AR Path="/61C6168C/62125291" Ref="C?"  Part="1" 
AR Path="/61D1084D/62125291" Ref="C11"  Part="1" 
F 0 "C11" H 7158 6246 50  0000 R CNN
F 1 "10u" H 7158 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 7250 6200 50  0001 C CNN
F 3 "~" H 7250 6200 50  0001 C CNN
	1    7250 6200
	-1   0    0    -1  
$EndComp
Connection ~ 5250 6100
$Comp
L power:+3V3 #PWR?
U 1 1 6212526D
P 5250 6100
AR Path="/6212526D" Ref="#PWR?"  Part="1" 
AR Path="/61C6168C/6212526D" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/6212526D" Ref="#PWR0188"  Part="1" 
F 0 "#PWR0188" H 5250 5950 50  0001 C CNN
F 1 "+3V3" H 5250 6250 50  0000 C CNN
F 2 "" H 5250 6100 50  0001 C CNN
F 3 "" H 5250 6100 50  0001 C CNN
	1    5250 6100
	-1   0    0    -1  
$EndComp
Connection ~ 6450 6100
$Comp
L Device:C_Small C?
U 1 1 62142A08
P 8850 6200
AR Path="/62142A08" Ref="C?"  Part="1" 
AR Path="/61D1084D/62142A08" Ref="C15"  Part="1" 
F 0 "C15" H 8758 6246 50  0000 R CNN
F 1 "10u" H 8758 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 8850 6200 50  0001 C CNN
F 3 "~" H 8850 6200 50  0001 C CNN
	1    8850 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8450 6300 8850 6300
Connection ~ 8450 6300
Wire Wire Line
	8850 6100 8450 6100
Connection ~ 8450 6100
$Comp
L Device:C_Small C?
U 1 1 62142A12
P 8450 6200
AR Path="/62142A12" Ref="C?"  Part="1" 
AR Path="/61D1084D/62142A12" Ref="C14"  Part="1" 
F 0 "C14" H 8358 6246 50  0000 R CNN
F 1 "10u" H 8358 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 8450 6200 50  0001 C CNN
F 3 "~" H 8450 6200 50  0001 C CNN
	1    8450 6200
	-1   0    0    -1  
$EndComp
Connection ~ 8850 6300
Wire Wire Line
	8050 6300 8450 6300
Wire Wire Line
	8450 6100 8050 6100
Connection ~ 8050 6100
Connection ~ 8050 6300
$Comp
L 74xx:74LS32 U?
U 4 2 619CE2DA
P 7750 3500
AR Path="/619CE2DA" Ref="U?"  Part="1" 
AR Path="/61D1084D/619CE2DA" Ref="U34"  Part="4" 
F 0 "U34" H 7750 3500 50  0000 C CNN
F 1 "74LVC32AD" H 7750 3700 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 7750 3500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7750 3500 50  0001 C CNN
	4    7750 3500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 2 1 6251D345
P 7150 3800
AR Path="/6251D345" Ref="U?"  Part="1" 
AR Path="/61D1084D/6251D345" Ref="U34"  Part="2" 
F 0 "U34" H 7150 3800 50  0000 C CNN
F 1 "74LVC32AD" H 7150 4050 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 7150 3800 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 7150 3800 50  0001 C CNN
	2    7150 3800
	1    0    0    1   
$EndComp
Text Label 6550 3900 0    50   ~ 0
ACK-0
Wire Wire Line
	6450 4000 6450 3400
Wire Wire Line
	6450 3400 7450 3400
Text Label 7450 3400 2    50   ~ 0
L~TM~1
Wire Wire Line
	6550 3900 6850 3900
Text HLabel 6250 4200 0    50   Input ~ 0
L~A~[21..0]
Wire Bus Line
	8150 4200 6250 4200
$Comp
L Device:C_Small C?
U 1 1 61A7D91D
P 9250 6200
AR Path="/61A7D91D" Ref="C?"  Part="1" 
AR Path="/61D1084D/61A7D91D" Ref="C46"  Part="1" 
F 0 "C46" H 9158 6246 50  0000 R CNN
F 1 "10u" H 9158 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 9250 6200 50  0001 C CNN
F 3 "~" H 9250 6200 50  0001 C CNN
	1    9250 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	8850 6300 9250 6300
Wire Wire Line
	9250 6100 8850 6100
Connection ~ 9250 6300
$Comp
L 74xx:74LS125 U26
U 1 1 620083D2
P 9550 5600
F 0 "U26" H 9500 5600 50  0000 C CNN
F 1 "74LVC125AD" H 9550 5800 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 5600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 9550 5600 50  0001 C CNN
	1    9550 5600
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 U24
U 2 1 62000AE4
P 9550 4500
F 0 "U24" H 9500 4500 50  0000 C CNN
F 1 "74LVC125AD" H 9550 4700 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 4500 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 9550 4500 50  0001 C CNN
	2    9550 4500
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 U24
U 1 1 620065AF
P 9550 5050
F 0 "U24" H 9500 5050 50  0000 C CNN
F 1 "74LVC125AD" H 9550 5250 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 9550 5050 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 9550 5050 50  0001 C CNN
	1    9550 5050
	1    0    0    -1  
$EndComp
Connection ~ 8850 6100
Text Label 9050 2000 0    50   ~ 0
~ACK~-0
Text Label 7150 3600 0    50   ~ 0
~ACK~-1
Wire Wire Line
	7150 3600 7450 3600
$Comp
L 74xx:74LS32 U?
U 2 2 62CB8B1D
P 2550 2750
AR Path="/62CB8B1D" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B1D" Ref="U21"  Part="2" 
F 0 "U21" H 2550 2750 50  0000 C CNN
F 1 "74LVC32AD" H 2550 2950 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2550 2750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2550 2750 50  0001 C CNN
	2    2550 2750
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 1 2 62CB8B23
P 2550 1950
AR Path="/62CB8B23" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B23" Ref="U21"  Part="1" 
F 0 "U21" H 2550 1950 50  0000 C CNN
F 1 "74LVC32AD" H 2550 1750 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2550 1950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2550 1950 50  0001 C CNN
	1    2550 1950
	1    0    0    1   
$EndComp
Wire Wire Line
	2950 2750 2850 2750
Wire Wire Line
	2950 2450 2950 2750
Wire Wire Line
	3050 2450 2950 2450
Wire Wire Line
	2950 1950 2850 1950
Wire Wire Line
	2950 2250 2950 1950
Wire Wire Line
	3050 2250 2950 2250
$Comp
L 74xx:74LS00 U?
U 3 1 61FF43D9
P 7750 3900
AR Path="/61FF43D9" Ref="U?"  Part="1" 
AR Path="/61D1084D/61FF43D9" Ref="U23"  Part="3" 
F 0 "U23" H 7750 3900 50  0000 C CNN
F 1 "74LVC00AD" H 7750 3700 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 7750 3900 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS00" H 7750 3900 50  0001 C CNN
	3    7750 3900
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS00 U?
U 2 1 62CB8AEA
P 2550 3250
AR Path="/62CB8AEA" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8AEA" Ref="U23"  Part="2" 
F 0 "U23" H 2550 3250 50  0000 C CNN
F 1 "74LVC00AD" H 2550 3050 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2550 3250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS00" H 2550 3250 50  0001 C CNN
	2    2550 3250
	1    0    0    1   
$EndComp
$Comp
L 74xx:74LS00 U?
U 1 1 6226AA14
P 3350 3350
AR Path="/6226AA14" Ref="U?"  Part="1" 
AR Path="/61D1084D/6226AA14" Ref="U23"  Part="1" 
F 0 "U23" H 3350 3350 50  0000 C CNN
F 1 "74LVC00AD" H 3350 3150 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3350 3350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS00" H 3350 3350 50  0001 C CNN
	1    3350 3350
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0211
U 1 1 6227827E
P 8250 3000
F 0 "#PWR0211" H 8250 2750 50  0001 C CNN
F 1 "GND" H 8250 2850 50  0000 C CNN
F 2 "" H 8250 3000 50  0001 C CNN
F 3 "" H 8250 3000 50  0001 C CNN
	1    8250 3000
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS02 U?
U 1 1 6231A2A7
P 8550 3100
AR Path="/6231A2A7" Ref="U?"  Part="1" 
AR Path="/61D1084D/6231A2A7" Ref="U22"  Part="1" 
F 0 "U22" H 8550 3100 50  0000 C CNN
F 1 "74LVC02AD" H 8550 2900 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 8550 3100 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS02" H 8550 3100 50  0001 C CNN
	1    8550 3100
	1    0    0    1   
$EndComp
$Comp
L power:GND #PWR0216
U 1 1 62326190
P 2250 3150
F 0 "#PWR0216" H 2250 2900 50  0001 C CNN
F 1 "GND" H 2250 3000 50  0000 C CNN
F 2 "" H 2250 3150 50  0001 C CNN
F 3 "" H 2250 3150 50  0001 C CNN
	1    2250 3150
	1    0    0    -1  
$EndComp
Wire Wire Line
	6550 3700 6850 3700
Text Label 6550 3700 0    50   ~ 0
ACK-1
$Comp
L 74xx:74LS32 U?
U 3 2 6236670D
P 3350 2350
AR Path="/6236670D" Ref="U?"  Part="1" 
AR Path="/61D1084D/6236670D" Ref="U21"  Part="3" 
F 0 "U21" H 3350 2350 50  0000 C CNN
F 1 "74LVC32AD" H 3350 2150 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3350 2350 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 3350 2350 50  0001 C CNN
	3    3350 2350
	1    0    0    1   
$EndComp
Wire Wire Line
	8850 2900 8850 3100
Connection ~ 8850 3100
Wire Wire Line
	8850 3100 8850 3300
Text HLabel 10250 4100 2    50   Output ~ 0
BDIR
Wire Wire Line
	10250 4100 10150 4100
Wire Wire Line
	10150 4100 10150 4000
Wire Wire Line
	10150 4000 10250 4000
Wire Wire Line
	9850 4000 10150 4000
Connection ~ 10150 4000
Wire Wire Line
	9850 3600 10250 3600
Wire Wire Line
	9850 3200 10250 3200
Wire Wire Line
	9850 2800 10250 2800
Wire Wire Line
	9650 2400 10250 2400
Wire Wire Line
	9050 2000 10250 2000
$Comp
L 74xx:74LS86 U?
U 1 1 62CB8B05
P 1950 2150
AR Path="/62CB8B05" Ref="U?"  Part="1" 
AR Path="/61D1084D/62CB8B05" Ref="U20"  Part="1" 
F 0 "U20" H 1950 2150 50  0000 C CNN
F 1 "74LVC86AD" H 1950 2350 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1950 2150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS86" H 1950 2150 50  0001 C CNN
	1    1950 2150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS00 U?
U 4 1 61929D9F
P 5350 4850
AR Path="/61929D9F" Ref="U?"  Part="1" 
AR Path="/61D1084D/61929D9F" Ref="U23"  Part="4" 
F 0 "U23" H 5350 4850 50  0000 C CNN
F 1 "74LVC00AD" H 5350 4650 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 5350 4850 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS00" H 5350 4850 50  0001 C CNN
	4    5350 4850
	1    0    0    1   
$EndComp
Connection ~ 5050 4950
Connection ~ 6050 4850
$Comp
L Device:R_Small R?
U 1 1 61874E7F
P 5950 4850
AR Path="/64084316/61874E7F" Ref="R?"  Part="1" 
AR Path="/61D1084D/61874E7F" Ref="R8"  Part="1" 
F 0 "R8" V 5800 4850 50  0000 C CNN
F 1 "100" V 5900 4850 50  0000 C BNN
F 2 "stdpads:R_0805" H 5950 4850 50  0001 C CNN
F 3 "~" H 5950 4850 50  0001 C CNN
F 4 "C25190" H 5950 4850 50  0001 C CNN "LCSC Part"
	1    5950 4850
	0    -1   -1   0   
$EndComp
$Comp
L 74xx:74LS86 U?
U 5 1 6197BCC7
P 800 6250
AR Path="/6197BCC7" Ref="U?"  Part="1" 
AR Path="/61D1084D/6197BCC7" Ref="U20"  Part="5" 
F 0 "U20" H 800 6300 50  0000 C CNN
F 1 "74LVC86AD" H 800 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 800 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS86" H 800 6250 50  0001 C CNN
	5    800  6250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS00 U?
U 5 1 61982AF1
P 1300 6250
AR Path="/61982AF1" Ref="U?"  Part="1" 
AR Path="/61D1084D/61982AF1" Ref="U23"  Part="5" 
F 0 "U23" H 1300 6300 50  0000 C CNN
F 1 "74LVC00AD" H 1300 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1300 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS00" H 1300 6250 50  0001 C CNN
	5    1300 6250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 5 1 619A15D2
P 1800 6250
AR Path="/619A15D2" Ref="U?"  Part="1" 
AR Path="/61D1084D/619A15D2" Ref="U25"  Part="5" 
F 0 "U25" H 1800 6300 50  0000 C CNN
F 1 "74LVC32AD" H 1800 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1800 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 1800 6250 50  0001 C CNN
	5    1800 6250
	1    0    0    -1  
$EndComp
Wire Wire Line
	800  5750 1300 5750
Connection ~ 1300 5750
Wire Wire Line
	1300 5750 1800 5750
$Comp
L 74xx:74LS32 U?
U 5 1 619B85D3
P 2300 6250
AR Path="/619B85D3" Ref="U?"  Part="1" 
AR Path="/61D1084D/619B85D3" Ref="U21"  Part="5" 
F 0 "U21" H 2300 6300 50  0000 C CNN
F 1 "74LVC32AD" H 2300 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2300 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2300 6250 50  0001 C CNN
	5    2300 6250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS02 U?
U 5 1 619C462A
P 3800 6250
AR Path="/619C462A" Ref="U?"  Part="1" 
AR Path="/61D1084D/619C462A" Ref="U22"  Part="5" 
F 0 "U22" H 3800 6300 50  0000 C CNN
F 1 "74LVC02AD" H 3800 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3800 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS02" H 3800 6250 50  0001 C CNN
	5    3800 6250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS32 U?
U 5 1 619CE0AA
P 2800 6250
AR Path="/619CE0AA" Ref="U?"  Part="1" 
AR Path="/61D1084D/619CE0AA" Ref="U34"  Part="5" 
F 0 "U34" H 2800 6300 50  0000 C CNN
F 1 "74LVC32AD" H 2800 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2800 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2800 6250 50  0001 C CNN
	5    2800 6250
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 619E8235
P 800 5150
AR Path="/619E8235" Ref="U?"  Part="1" 
AR Path="/61CA157A/619E8235" Ref="U?"  Part="1" 
AR Path="/61CD3565/619E8235" Ref="U?"  Part="1" 
AR Path="/61D1084D/619E8235" Ref="U17"  Part="3" 
F 0 "U17" H 800 5200 50  0000 C CNN
F 1 "74LVC74AD" H 800 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 800 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 800 5150 50  0001 C CNN
	3    800  5150
	1    0    0    -1  
$EndComp
Connection ~ 1300 6750
Wire Wire Line
	1300 6750 800  6750
Connection ~ 1800 6750
Wire Wire Line
	1800 6750 1300 6750
Connection ~ 2300 6750
Wire Wire Line
	2300 6750 1800 6750
Wire Wire Line
	1800 5750 2300 5750
Connection ~ 1800 5750
Connection ~ 2300 5750
$Comp
L power:+3V3 #PWR0231
U 1 1 619FE5C1
P 800 5750
F 0 "#PWR0231" H 800 5600 50  0001 C CNN
F 1 "+3V3" H 800 5900 50  0000 C CNN
F 2 "" H 800 5750 50  0001 C CNN
F 3 "" H 800 5750 50  0001 C CNN
	1    800  5750
	1    0    0    -1  
$EndComp
Connection ~ 800  5750
$Comp
L power:GND #PWR0232
U 1 1 61A000B2
P 4800 6750
F 0 "#PWR0232" H 4800 6500 50  0001 C CNN
F 1 "GND" H 4800 6600 50  0000 C CNN
F 2 "" H 4800 6750 50  0001 C CNN
F 3 "" H 4800 6750 50  0001 C CNN
	1    4800 6750
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 61A005AD
P 1300 5150
AR Path="/61A005AD" Ref="U?"  Part="1" 
AR Path="/61CA157A/61A005AD" Ref="U?"  Part="1" 
AR Path="/61CD3565/61A005AD" Ref="U?"  Part="1" 
AR Path="/61D1084D/61A005AD" Ref="U18"  Part="3" 
F 0 "U18" H 1300 5200 50  0000 C CNN
F 1 "74LVC74AD" H 1300 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1300 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 1300 5150 50  0001 C CNN
	3    1300 5150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 61A01937
P 1800 5150
AR Path="/61A01937" Ref="U?"  Part="1" 
AR Path="/61CA157A/61A01937" Ref="U?"  Part="1" 
AR Path="/61CD3565/61A01937" Ref="U?"  Part="1" 
AR Path="/61D1084D/61A01937" Ref="U19"  Part="3" 
F 0 "U19" H 1800 5200 50  0000 C CNN
F 1 "74LVC74AD" H 1800 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 1800 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 1800 5150 50  0001 C CNN
	3    1800 5150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 61A024EF
P 2300 5150
AR Path="/61A024EF" Ref="U?"  Part="1" 
AR Path="/61CA157A/61A024EF" Ref="U?"  Part="1" 
AR Path="/61CD3565/61A024EF" Ref="U?"  Part="1" 
AR Path="/61D1084D/61A024EF" Ref="U35"  Part="3" 
F 0 "U35" H 2300 5200 50  0000 C CNN
F 1 "74LVC74AD" H 2300 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2300 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 2300 5150 50  0001 C CNN
	3    2300 5150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 61A02B7B
P 2800 5150
AR Path="/61A02B7B" Ref="U?"  Part="1" 
AR Path="/61CA157A/61A02B7B" Ref="U?"  Part="1" 
AR Path="/61CD3565/61A02B7B" Ref="U?"  Part="1" 
AR Path="/61D1084D/61A02B7B" Ref="U36"  Part="3" 
F 0 "U36" H 2800 5200 50  0000 C CNN
F 1 "74LVC74AD" H 2800 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2800 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 2800 5150 50  0001 C CNN
	3    2800 5150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS74 U?
U 3 1 61A05723
P 3300 5150
AR Path="/61A05723" Ref="U?"  Part="1" 
AR Path="/61CA157A/61A05723" Ref="U?"  Part="1" 
AR Path="/61CD3565/61A05723" Ref="U?"  Part="1" 
AR Path="/61D1084D/61A05723" Ref="U37"  Part="3" 
F 0 "U37" H 3300 5200 50  0000 C CNN
F 1 "74LVC74AD" H 3300 5100 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3300 5150 50  0001 C CNN
F 3 "74xx/74hc_hct74.pdf" H 3300 5150 50  0001 C CNN
	3    3300 5150
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS125 U24
U 5 1 61A05A96
P 4300 6250
F 0 "U24" H 4300 6300 50  0000 C CNN
F 1 "74LVC125AD" H 4300 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 4300 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 4300 6250 50  0001 C CNN
	5    4300 6250
	1    0    0    -1  
$EndComp
Connection ~ 3800 5750
Wire Wire Line
	3800 5750 4300 5750
Connection ~ 3800 6750
Wire Wire Line
	3800 6750 4300 6750
Wire Wire Line
	2300 6750 2800 6750
Wire Wire Line
	2300 5750 2800 5750
Wire Wire Line
	3300 5750 3800 5750
Wire Wire Line
	3300 6750 3800 6750
$Comp
L 74xx:74LS125 U26
U 5 1 61A40FEA
P 4800 6250
F 0 "U26" H 4800 6300 50  0000 C CNN
F 1 "74LVC125AD" H 4800 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 4800 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 4800 6250 50  0001 C CNN
	5    4800 6250
	1    0    0    -1  
$EndComp
Wire Wire Line
	4300 5750 4800 5750
Connection ~ 4300 5750
Wire Wire Line
	4800 6750 4300 6750
Connection ~ 4800 6750
Connection ~ 4300 6750
$Comp
L power:+3V3 #PWR0233
U 1 1 61A60723
P 800 4750
F 0 "#PWR0233" H 800 4600 50  0001 C CNN
F 1 "+3V3" H 800 4900 50  0000 C CNN
F 2 "" H 800 4750 50  0001 C CNN
F 3 "" H 800 4750 50  0001 C CNN
	1    800  4750
	1    0    0    -1  
$EndComp
Wire Wire Line
	800  4750 1300 4750
Connection ~ 800  4750
Connection ~ 1300 4750
Wire Wire Line
	1300 4750 1800 4750
Connection ~ 1800 4750
Wire Wire Line
	1800 4750 2300 4750
Connection ~ 2300 4750
Wire Wire Line
	2300 4750 2800 4750
Connection ~ 2800 4750
Wire Wire Line
	2800 4750 3300 4750
$Comp
L power:GND #PWR0234
U 1 1 61A68B53
P 3300 5550
F 0 "#PWR0234" H 3300 5300 50  0001 C CNN
F 1 "GND" H 3300 5400 50  0000 C CNN
F 2 "" H 3300 5550 50  0001 C CNN
F 3 "" H 3300 5550 50  0001 C CNN
	1    3300 5550
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 5550 2800 5550
Connection ~ 3300 5550
Connection ~ 1300 5550
Wire Wire Line
	1300 5550 800  5550
Connection ~ 1800 5550
Wire Wire Line
	1800 5550 1300 5550
Connection ~ 2300 5550
Wire Wire Line
	2300 5550 1800 5550
Connection ~ 2800 5550
Wire Wire Line
	2800 5550 2300 5550
$Comp
L 74xx:74LS32 U?
U 5 1 61AB5CA2
P 3300 6250
AR Path="/61AB5CA2" Ref="U?"  Part="1" 
AR Path="/61D1084D/61AB5CA2" Ref="U42"  Part="5" 
F 0 "U42" H 3300 6300 50  0000 C CNN
F 1 "74LVC32AD" H 3300 6200 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3300 6250 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 3300 6250 50  0001 C CNN
	5    3300 6250
	1    0    0    -1  
$EndComp
Wire Wire Line
	3300 5750 2800 5750
Connection ~ 3300 5750
Connection ~ 2800 5750
Wire Wire Line
	2800 6750 3300 6750
Connection ~ 2800 6750
Connection ~ 3300 6750
$Comp
L Device:C_Small C?
U 1 1 61B9553B
P 9650 6200
AR Path="/61B9553B" Ref="C?"  Part="1" 
AR Path="/61D1084D/61B9553B" Ref="C36"  Part="1" 
F 0 "C36" H 9558 6246 50  0000 R CNN
F 1 "10u" H 9558 6155 50  0000 R CNN
F 2 "stdpads:C_0805" H 9650 6200 50  0001 C CNN
F 3 "~" H 9650 6200 50  0001 C CNN
	1    9650 6200
	-1   0    0    -1  
$EndComp
Wire Wire Line
	9250 6300 9650 6300
Connection ~ 9650 6300
$Comp
L power:GND #PWR?
U 1 1 61BBA723
P 9650 6300
AR Path="/61BBA723" Ref="#PWR?"  Part="1" 
AR Path="/61D1084D/61BBA723" Ref="#PWR0215"  Part="1" 
F 0 "#PWR0215" H 9650 6050 50  0001 C CNN
F 1 "GND" H 9650 6150 50  0000 C CNN
F 2 "" H 9650 6300 50  0001 C CNN
F 3 "" H 9650 6300 50  0001 C CNN
	1    9650 6300
	1    0    0    -1  
$EndComp
Connection ~ 9250 6100
Wire Wire Line
	9250 6100 9650 6100
Wire Bus Line
	6450 6900 6450 7200
Wire Bus Line
	6450 7300 6450 7600
Wire Bus Line
	1350 1550 1350 2750
Wire Bus Line
	1150 1750 1150 2950
$EndSCHEMATC