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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr USLetter 11000 8500
encoding utf-8
Sheet 8 20
Title "BlueRetro - Genesis adapter cable"
Date "2020-11-01"
Rev "v1.0"
Comp "©2020-2022 Jacques Gagnon, licensed under CC-BY-4.0"
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
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AR Path="/5F9FC91E/5FA2289F" Ref="U1" Part="2"
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F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 3150 1900 50 0001 C CNN
2 3150 1900
1 0 0 -1
$EndComp
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AR Path="/5F9FC91E/5FA228A5" Ref="U2" Part="1"
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1 3150 2800
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$EndComp
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AR Path="/5F127084/5FA228AB" Ref="U?" Part="3"
AR Path="/5F9FC91E/5FA228AB" Ref="U1" Part="1"
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F 1 "74AHCT125N" H 3150 1226 50 0000 C CNN
F 2 "" H 3150 1000 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 3150 1000 50 0001 C CNN
1 3150 1000
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$EndComp
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AR Path="/5F127084/5FA228B1" Ref="U?" Part="4"
AR Path="/5F9FC91E/5FA228B1" Ref="U2" Part="2"
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F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 3150 3700 50 0001 C CNN
2 3150 3700
1 0 0 -1
$EndComp
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AR Path="/5F127084/5FA228B7" Ref="J?" Part="1"
AR Path="/5F9FC91E/5FA228B7" Ref="J3" Part="1"
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AR Path="/5F9FC91E/5FA228C3" Ref="U3" Part="4"
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F 2 "" H 6500 1000 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 6500 1000 50 0001 C CNN
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AR Path="/5F9FC91E/5FA228C9" Ref="U5" Part="1"
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F 2 "" H 6500 1900 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 6500 1900 50 0001 C CNN
1 6500 1900
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F 2 "" H 6500 2800 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 6500 2800 50 0001 C CNN
2 6500 2800
1 0 0 -1
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AR Path="/5F9FC91E/5FA228D5" Ref="U5" Part="3"
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3 6500 3700
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F9FC91E/5FA228ED" Ref="U6" Part="1"
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F 2 "" H 8250 1000 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 8250 1000 50 0001 C CNN
1 8250 1000
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$EndComp
$Comp
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AR Path="/5F127084/5FA228F3" Ref="U?" Part="3"
AR Path="/5F9FC91E/5FA228F3" Ref="U6" Part="2"
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2 8250 1900
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$EndComp
$Comp
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AR Path="/5F127084/5FA228F9" Ref="U?" Part="4"
AR Path="/5F9FC91E/5FA228F9" Ref="U6" Part="3"
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AR Path="/5F127084/5FA228FF" Ref="U?" Part="1"
AR Path="/5F9FC91E/5FA228FF" Ref="U5" Part="4"
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4 8250 3700
1 0 0 -1
$EndComp
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Wire Wire Line
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1 9700 1700
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$EndComp
$Comp
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$EndComp
Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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Wire Wire Line
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$Comp
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F 3 "" H 9400 2750 50 0001 C CNN
1 9400 2750
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$Comp
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AR Path="/5F9FC91E/5FA22937" Ref="#PWR0141" Part="1"
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F 3 "" H 6500 3950 50 0001 C CNN
1 6500 3950
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F9FC91E/5FA2293D" Ref="#PWR0140" Part="1"
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F 2 "" H 6500 3050 50 0001 C CNN
F 3 "" H 6500 3050 50 0001 C CNN
1 6500 3050
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F9FC91E/5FA22943" Ref="#PWR0138" Part="1"
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F 2 "" H 6500 1250 50 0001 C CNN
F 3 "" H 6500 1250 50 0001 C CNN
1 6500 1250
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F127084/5FA22949" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22949" Ref="#PWR0139" Part="1"
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F 2 "" H 6500 2150 50 0001 C CNN
F 3 "" H 6500 2150 50 0001 C CNN
1 6500 2150
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
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AR Path="/5F127084/5FA2295B" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA2295B" Ref="#PWR0130" Part="1"
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F 2 "" H 3150 2150 50 0001 C CNN
F 3 "" H 3150 2150 50 0001 C CNN
1 3150 2150
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F127084/5FA22961" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22961" Ref="#PWR0132" Part="1"
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1 0 0 -1
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$Comp
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AR Path="/5F9FC91E/5FA2296D" Ref="#PWR0145" Part="1"
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F 3 "" H 8250 2150 50 0001 C CNN
1 8250 2150
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
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P 8250 1250
AR Path="/5F127084/5FA22973" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22973" Ref="#PWR0144" Part="1"
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F 3 "" H 8250 1250 50 0001 C CNN
1 8250 1250
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FA22979
P 8250 3050
AR Path="/5F127084/5FA22979" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22979" Ref="#PWR0146" Part="1"
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F 3 "" H 8250 3050 50 0001 C CNN
1 8250 3050
1 0 0 -1
$EndComp
$Comp
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AR Path="/5F127084/5FA2297F" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA2297F" Ref="#PWR0142" Part="1"
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F 1 "GND" H 6505 4677 50 0000 C CNN
F 2 "" H 6500 4850 50 0001 C CNN
F 3 "" H 6500 4850 50 0001 C CNN
1 6500 4850
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FA22991
P 8250 3950
AR Path="/5F127084/5FA22991" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22991" Ref="#PWR0147" Part="1"
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F 3 "" H 8250 3950 50 0001 C CNN
1 8250 3950
1 0 0 -1
$EndComp
Wire Wire Line
2850 1900 2550 1900
Wire Wire Line
2850 2800 2550 2800
Wire Wire Line
2850 1000 2550 1000
Wire Wire Line
2850 3700 2550 3700
Wire Wire Line
3450 1900 3800 1900
Wire Wire Line
3450 2800 3800 2800
Wire Wire Line
3450 1000 3800 1000
Wire Wire Line
3450 3700 3800 3700
Text Label 2550 1900 0 50 ~ 0
TH1
Text Label 2550 2800 0 50 ~ 0
TR1
Text Label 2550 1000 0 50 ~ 0
TH2
Text Label 2550 3700 0 50 ~ 0
TR2
Text Label 3800 1900 2 50 ~ 0
I35
Text Label 3800 2800 2 50 ~ 0
IO27
Text Label 3800 1000 2 50 ~ 0
I36
Text Label 3800 3700 2 50 ~ 0
IO16
Wire Wire Line
6200 1000 5850 1000
Wire Wire Line
6200 1900 5850 1900
Wire Wire Line
6200 2800 5850 2800
Wire Wire Line
6200 3700 5850 3700
Wire Wire Line
6200 4600 5850 4600
Wire Wire Line
6800 4600 7200 4600
Wire Wire Line
6800 3700 7200 3700
Wire Wire Line
6800 2800 7200 2800
Wire Wire Line
6800 1900 7200 1900
Wire Wire Line
6800 1000 7200 1000
Wire Wire Line
7950 1000 7550 1000
Wire Wire Line
7950 1900 7550 1900
Wire Wire Line
7950 2800 7550 2800
Wire Wire Line
7950 3700 7550 3700
Wire Wire Line
8550 3700 9000 3700
Wire Wire Line
8550 2800 9000 2800
Wire Wire Line
8550 1900 9000 1900
Wire Wire Line
8550 1000 9000 1000
Text Label 5850 1000 0 50 ~ 0
IO26
Text Label 5850 1900 0 50 ~ 0
IO3
Text Label 5850 2800 0 50 ~ 0
IO5
Text Label 5850 3700 0 50 ~ 0
IO18
Text Label 5850 4600 0 50 ~ 0
IO23
Text Label 7200 1000 2 50 ~ 0
TL1
Text Label 7200 1900 2 50 ~ 0
U1
Text Label 7200 2800 2 50 ~ 0
D1
Text Label 7200 3700 2 50 ~ 0
L1
Text Label 7200 4600 2 50 ~ 0
R1
Text Label 7550 1000 0 50 ~ 0
IO19
Text Label 7550 1900 0 50 ~ 0
IO21
Text Label 7550 2800 0 50 ~ 0
IO22
Text Label 7550 3700 0 50 ~ 0
IO25
Text Label 9000 1000 2 50 ~ 0
U2
Text Label 9000 1900 2 50 ~ 0
D2
Text Label 9000 2800 2 50 ~ 0
L2
Text Label 9000 3700 2 50 ~ 0
R2
$Comp
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AR Path="/5F9FC91E/5FA22A18" Ref="#PWR0124" Part="1"
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F 1 "GND" H 1805 2077 50 0000 C CNN
F 2 "" H 1800 2250 50 0001 C CNN
F 3 "" H 1800 2250 50 0001 C CNN
1 1800 2250
0 -1 -1 0
$EndComp
$Comp
L power:GND #PWR?
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P 1850 3700
AR Path="/5F127084/5FA22A1E" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22A1E" Ref="#PWR0126" Part="1"
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F 1 "GND" H 1855 3527 50 0000 C CNN
F 2 "" H 1850 3700 50 0001 C CNN
F 3 "" H 1850 3700 50 0001 C CNN
1 1850 3700
0 -1 -1 0
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5FA22A24
P 1850 4000
AR Path="/5F127084/5FA22A24" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22A24" Ref="#PWR0127" Part="1"
F 0 "#PWR0127" H 1850 3850 50 0001 C CNN
F 1 "+5V" H 1865 4173 50 0000 C CNN
F 2 "" H 1850 4000 50 0001 C CNN
F 3 "" H 1850 4000 50 0001 C CNN
1 1850 4000
0 1 1 0
$EndComp
$Comp
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U 1 1 5FA22A2A
P 1800 2550
AR Path="/5F127084/5FA22A2A" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FA22A2A" Ref="#PWR0125" Part="1"
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F 1 "+5V" H 1815 2723 50 0000 C CNN
F 2 "" H 1800 2550 50 0001 C CNN
F 3 "" H 1800 2550 50 0001 C CNN
1 1800 2550
0 1 1 0
$EndComp
Wire Wire Line
850 2650 850 2500
Wire Wire Line
850 2500 700 2500
Wire Wire Line
1650 2650 1650 2550
Wire Wire Line
1650 2550 1800 2550
Wire Wire Line
900 4100 900 3950
Wire Wire Line
900 3950 750 3950
Wire Wire Line
1700 4100 1700 4000
Wire Wire Line
1700 4000 1850 4000
Wire Wire Line
1600 4100 1600 3900
Wire Wire Line
1000 4100 1000 3850
Wire Wire Line
1550 2650 1550 2450
Wire Wire Line
950 2650 950 2400
Text Label 700 2300 0 50 ~ 0
D1
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U1
Text Label 700 2200 0 50 ~ 0
TH1
Text Label 1800 2450 2 50 ~ 0
TR1
Text Label 700 2400 0 50 ~ 0
TL1
Text Label 1800 2350 2 50 ~ 0
R1
Text Label 700 2100 0 50 ~ 0
L1
Text Label 750 3750 0 50 ~ 0
D2
Text Label 750 3950 0 50 ~ 0
U2
Text Label 750 3650 0 50 ~ 0
TH2
Text Label 750 3850 0 50 ~ 0
TL2
Text Label 1850 3800 2 50 ~ 0
R2
Text Label 750 3550 0 50 ~ 0
L2
Text Label 9500 2300 0 50 ~ 0
IO19
Text Label 9500 2200 0 50 ~ 0
IO21
Text Label 9500 1900 0 50 ~ 0
IO22
Text Label 9400 4000 0 50 ~ 0
IO25
Wire Wire Line
9800 1900 9500 1900
Wire Wire Line
9800 2300 9500 2300
Wire Wire Line
9800 2500 9500 2500
Wire Wire Line
9400 2800 9400 2750
Wire Wire Line
9400 2800 9800 2800
Wire Wire Line
9800 4200 9400 4200
Wire Wire Line
9800 3900 9400 3900
Wire Wire Line
9800 3700 9400 3700
Wire Wire Line
9800 3300 9400 3300
Text Label 9400 2900 0 50 ~ 0
IO16
Text Label 9500 2100 0 50 ~ 0
IO3
Text Label 9500 2500 0 50 ~ 0
IO5
Text Label 9500 1800 0 50 ~ 0
IO23
Text Label 9400 4100 0 50 ~ 0
IO26
Text Label 9400 4200 0 50 ~ 0
IO27
Text Label 9400 3900 0 50 ~ 0
IO33
Text Label 9400 3300 0 50 ~ 0
I36
Text Label 9400 3700 0 50 ~ 0
I35
Wire Wire Line
9800 3200 9600 3200
Connection ~ 9600 3200
Wire Wire Line
9600 3200 9600 3400
Connection ~ 9600 3400
Wire Wire Line
9800 2900 9400 2900
Wire Wire Line
9800 2100 9500 2100
Wire Wire Line
9800 4000 9400 4000
Text Label 9500 2400 0 50 ~ 0
IO18
Wire Wire Line
9400 4100 9800 4100
NoConn ~ 9800 2700
Wire Wire Line
9800 3600 9600 3600
Connection ~ 9600 3600
NoConn ~ 9800 3100
Text Notes 6350 6900 0 50 ~ 0
* Very important for DB25 pin 22 (I39/VN) to be connect to 3.3v for proper system detection.
Text Notes 750 3350 0 50 ~ 0
Connectors facing console
$Comp
L Connector_Gaming:Atari_SEGA_DE9 J1
U 1 1 5FA2BBDE
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F 0 "J1" V 1168 3505 50 0000 L CNN
F 1 "Atari_SEGA_DE9" V 1213 3505 50 0001 L CNN
F 2 "" H 1250 2950 50 0001 C CNN
F 3 " ~" H 1250 2950 50 0001 C CNN
1 1250 2950
0 1 1 0
$EndComp
$Comp
L Connector_Gaming:Atari_SEGA_DE9 J2
U 1 1 5FA2C6A1
P 1300 4400
F 0 "J2" V 1218 4955 50 0000 L CNN
F 1 "Atari_SEGA_DE9" V 1263 4955 50 0001 L CNN
F 2 "" H 1300 4400 50 0001 C CNN
F 3 " ~" H 1300 4400 50 0001 C CNN
1 1300 4400
0 1 1 0
$EndComp
Wire Wire Line
950 2400 700 2400
Wire Wire Line
1050 2300 700 2300
Wire Wire Line
1050 2300 1050 2650
Wire Wire Line
1150 2200 700 2200
Wire Wire Line
1150 2200 1150 2650
Wire Wire Line
1250 2100 700 2100
Wire Wire Line
1250 2100 1250 2650
Wire Wire Line
1550 2450 1800 2450
Wire Wire Line
1450 2350 1800 2350
Wire Wire Line
1450 2350 1450 2650
Wire Wire Line
1350 2250 1800 2250
Wire Wire Line
1350 2250 1350 2650
Wire Wire Line
1000 3850 750 3850
Wire Wire Line
1100 3750 750 3750
Wire Wire Line
1100 3750 1100 4100
Wire Wire Line
1200 3650 750 3650
Wire Wire Line
1200 3650 1200 4100
Wire Wire Line
1300 3550 750 3550
Wire Wire Line
1300 3550 1300 4100
Wire Wire Line
1600 3900 1850 3900
Wire Wire Line
1500 3800 1850 3800
Wire Wire Line
1500 3800 1500 4100
Wire Wire Line
1400 3700 1850 3700
Wire Wire Line
1400 3700 1400 4100
Text Label 1850 3900 2 50 ~ 0
TR2
$Comp
L 74xx:74LS125 U?
U 1 1 5FBDB3CA
P 4950 2800
AR Path="/5F127084/5FBDB3CA" Ref="U?" Part="2"
AR Path="/5F9FC91E/5FBDB3CA" Ref="U3" Part="1"
F 0 "U3" H 4950 3117 50 0000 C CNN
F 1 "74AHCT125N" H 4950 3026 50 0000 C CNN
F 2 "" H 4950 2800 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 4950 2800 50 0001 C CNN
1 4950 2800
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 2 1 5FBDB3D0
P 4950 3700
AR Path="/5F127084/5FBDB3D0" Ref="U?" Part="4"
AR Path="/5F9FC91E/5FBDB3D0" Ref="U3" Part="2"
F 0 "U3" H 4950 4017 50 0000 C CNN
F 1 "74AHCT125N" H 4950 3926 50 0000 C CNN
F 2 "" H 4950 3700 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 4950 3700 50 0001 C CNN
2 4950 3700
1 0 0 -1
$EndComp
Wire Wire Line
4650 2800 4350 2800
Wire Wire Line
4650 3700 4350 3700
Wire Wire Line
5250 2800 5600 2800
Wire Wire Line
5250 3700 5600 3700
Text Label 5600 2800 2 50 ~ 0
TR1
Text Label 5600 3700 2 50 ~ 0
TR2
Text Label 4350 2800 0 50 ~ 0
IO27
Text Label 4350 3700 0 50 ~ 0
IO16
$Comp
L 74xx:74LS32 U4
U 1 1 5FC09394
P 5000 4600
F 0 "U4" H 5000 4925 50 0000 C CNN
F 1 "74AHCT32" H 5000 4834 50 0000 C CNN
F 2 "" H 5000 4600 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 5000 4600 50 0001 C CNN
1 5000 4600
1 0 0 -1
$EndComp
Wire Wire Line
3150 3050 3150 3200
Wire Wire Line
3150 3200 4950 3200
Wire Wire Line
4950 3200 4950 3050
Wire Wire Line
3150 3950 3150 4150
Wire Wire Line
3150 4150 4950 4150
Wire Wire Line
4950 4150 4950 3950
Wire Wire Line
4950 4150 5500 4150
Wire Wire Line
5500 4150 5500 4600
Wire Wire Line
5500 4600 5300 4600
Connection ~ 4950 4150
Wire Wire Line
4700 4500 4350 4500
Wire Wire Line
4700 4700 4350 4700
Wire Wire Line
3150 3200 2550 3200
Connection ~ 3150 3200
Text Label 4350 4500 0 50 ~ 0
IO1
Text Label 4350 4700 0 50 ~ 0
IO32
Text Label 2550 3200 0 50 ~ 0
IO32
Wire Wire Line
9800 2000 9500 2000
Text Label 9500 2000 0 50 ~ 0
IO1
Wire Wire Line
9400 3800 9800 3800
Wire Wire Line
9600 3600 9600 4300
Text Label 9400 3800 0 50 ~ 0
IO32
Wire Wire Line
9600 3400 9600 3600
Wire Wire Line
9800 3500 9300 3500
Wire Wire Line
9300 3500 9300 2800
Wire Wire Line
9300 2800 9400 2800
Connection ~ 9400 2800
$Comp
L 74xx:74LS125 U?
U 5 1 5FB03A86
P 4550 7050
AR Path="/5F127084/5FB03A86" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB03A86" Ref="U5" Part="5"
F 0 "U5" H 4780 7096 50 0000 L CNN
F 1 "74AHCT125N" H 4780 7005 50 0000 L CNN
F 2 "" H 4550 7050 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 4550 7050 50 0001 C CNN
5 4550 7050
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 5 1 5FB03A8C
P 5500 7050
AR Path="/5F127084/5FB03A8C" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB03A8C" Ref="U6" Part="5"
F 0 "U6" H 5730 7096 50 0000 L CNN
F 1 "74AHCT125N" H 5730 7005 50 0000 L CNN
F 2 "" H 5500 7050 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 5500 7050 50 0001 C CNN
5 5500 7050
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 5 1 5FB03A92
P 1000 7050
AR Path="/5F127084/5FB03A92" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB03A92" Ref="U1" Part="5"
F 0 "U1" H 1230 7096 50 0000 L CNN
F 1 "74AHCT125N" H 1230 7005 50 0000 L CNN
F 2 "" H 1000 7050 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 1000 7050 50 0001 C CNN
5 1000 7050
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 5 1 5FB03A98
P 3600 7050
AR Path="/5F127084/5FB03A98" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB03A98" Ref="U3" Part="5"
F 0 "U3" H 3830 7096 50 0000 L CNN
F 1 "74AHCT125N" H 3830 7005 50 0000 L CNN
F 2 "" H 3600 7050 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 3600 7050 50 0001 C CNN
5 3600 7050
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB03A9E
P 1000 7550
AR Path="/5F127084/5FB03A9E" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03A9E" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 1000 7300 50 0001 C CNN
F 1 "GND" H 1005 7377 50 0000 C CNN
F 2 "" H 1000 7550 50 0001 C CNN
F 3 "" H 1000 7550 50 0001 C CNN
1 1000 7550
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB03AA4
P 5500 7550
AR Path="/5F127084/5FB03AA4" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AA4" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 5500 7300 50 0001 C CNN
F 1 "GND" H 5505 7377 50 0000 C CNN
F 2 "" H 5500 7550 50 0001 C CNN
F 3 "" H 5500 7550 50 0001 C CNN
1 5500 7550
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB03AAA
P 4550 7550
AR Path="/5F127084/5FB03AAA" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AAA" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 4550 7300 50 0001 C CNN
F 1 "GND" H 4555 7377 50 0000 C CNN
F 2 "" H 4550 7550 50 0001 C CNN
F 3 "" H 4550 7550 50 0001 C CNN
1 4550 7550
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB03AB0
P 3600 7550
AR Path="/5F127084/5FB03AB0" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AB0" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 3600 7300 50 0001 C CNN
F 1 "GND" H 3605 7377 50 0000 C CNN
F 2 "" H 3600 7550 50 0001 C CNN
F 3 "" H 3600 7550 50 0001 C CNN
1 3600 7550
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR?
U 1 1 5FB03AB6
P 1000 6550
AR Path="/5F127084/5FB03AB6" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AB6" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 1000 6400 50 0001 C CNN
F 1 "+3.3V" H 1015 6723 50 0000 C CNN
F 2 "" H 1000 6550 50 0001 C CNN
F 3 "" H 1000 6550 50 0001 C CNN
1 1000 6550
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5FB03ABC
P 4550 6550
AR Path="/5F127084/5FB03ABC" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03ABC" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 4550 6400 50 0001 C CNN
F 1 "+5V" H 4565 6723 50 0000 C CNN
F 2 "" H 4550 6550 50 0001 C CNN
F 3 "" H 4550 6550 50 0001 C CNN
1 4550 6550
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5FB03AC2
P 3600 6550
AR Path="/5F127084/5FB03AC2" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AC2" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 3600 6400 50 0001 C CNN
F 1 "+5V" H 3615 6723 50 0000 C CNN
F 2 "" H 3600 6550 50 0001 C CNN
F 3 "" H 3600 6550 50 0001 C CNN
1 3600 6550
1 0 0 -1
$EndComp
$Comp
L power:+5V #PWR?
U 1 1 5FB03AC8
P 5500 6550
AR Path="/5F127084/5FB03AC8" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB03AC8" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 5500 6400 50 0001 C CNN
F 1 "+5V" H 5515 6723 50 0000 C CNN
F 2 "" H 5500 6550 50 0001 C CNN
F 3 "" H 5500 6550 50 0001 C CNN
1 5500 6550
1 0 0 -1
$EndComp
Wire Notes Line
750 7800 750 6300
Text Notes 850 6300 0 50 ~ 0
Inputs level shifter & OR gate VCC is 3.3V
Wire Notes Line
3350 6300 3350 7800
Wire Notes Line
750 6300 3350 6300
Wire Notes Line
750 7800 3350 7800
$Comp
L 74xx:74LS126 U?
U 5 1 5FB27F59
P 1950 7050
AR Path="/5F127084/5FB27F59" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB27F59" Ref="U2" Part="5"
F 0 "U2" H 2180 7096 50 0000 L CNN
F 1 "74AHCT126N" H 2180 7005 50 0000 L CNN
F 2 "" H 1950 7050 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 1950 7050 50 0001 C CNN
5 1950 7050
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB27F5F
P 1950 7550
AR Path="/5F127084/5FB27F5F" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB27F5F" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 1950 7300 50 0001 C CNN
F 1 "GND" H 1955 7377 50 0000 C CNN
F 2 "" H 1950 7550 50 0001 C CNN
F 3 "" H 1950 7550 50 0001 C CNN
1 1950 7550
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR?
U 1 1 5FB27F65
P 1950 6550
AR Path="/5F127084/5FB27F65" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB27F65" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 1950 6400 50 0001 C CNN
F 1 "+3.3V" H 1965 6723 50 0000 C CNN
F 2 "" H 1950 6550 50 0001 C CNN
F 3 "" H 1950 6550 50 0001 C CNN
1 1950 6550
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS32 U?
U 5 1 5FB2D007
P 2900 7050
AR Path="/5F127084/5FB2D007" Ref="U?" Part="5"
AR Path="/5F9FC91E/5FB2D007" Ref="U4" Part="5"
F 0 "U4" H 3130 7096 50 0000 L CNN
F 1 "74AHCT32" H 2950 6700 50 0000 L CNN
F 2 "" H 2900 7050 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 2900 7050 50 0001 C CNN
5 2900 7050
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB2D00D
P 2900 7550
AR Path="/5F127084/5FB2D00D" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB2D00D" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 2900 7300 50 0001 C CNN
F 1 "GND" H 2905 7377 50 0000 C CNN
F 2 "" H 2900 7550 50 0001 C CNN
F 3 "" H 2900 7550 50 0001 C CNN
1 2900 7550
1 0 0 -1
$EndComp
$Comp
L power:+3.3V #PWR?
U 1 1 5FB2D013
P 2900 6550
AR Path="/5F127084/5FB2D013" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB2D013" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 2900 6400 50 0001 C CNN
F 1 "+3.3V" H 2915 6723 50 0000 C CNN
F 2 "" H 2900 6550 50 0001 C CNN
F 3 "" H 2900 6550 50 0001 C CNN
1 2900 6550
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 4 1 5FB4DABA
P 9000 6200
AR Path="/5F127084/5FB4DABA" Ref="U?" Part="3"
AR Path="/5F9FC91E/5FB4DABA" Ref="U1" Part="4"
F 0 "U1" H 9000 6517 50 0000 C CNN
F 1 "74AHCT125N" H 9000 6426 50 0000 C CNN
F 2 "" H 9000 6200 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 9000 6200 50 0001 C CNN
4 9000 6200
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS126 U?
U 4 1 5FB4DAC0
P 10050 6200
AR Path="/5F127084/5FB4DAC0" Ref="U?" Part="4"
AR Path="/5F9FC91E/5FB4DAC0" Ref="U2" Part="4"
F 0 "U2" H 10050 6517 50 0000 C CNN
F 1 "74AHCT126N" H 10050 6426 50 0000 C CNN
F 2 "" H 10050 6200 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 10050 6200 50 0001 C CNN
4 10050 6200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB4DAC6
P 9000 6450
AR Path="/5F127084/5FB4DAC6" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB4DAC6" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 9000 6200 50 0001 C CNN
F 1 "GND" H 9005 6277 50 0000 C CNN
F 2 "" H 9000 6450 50 0001 C CNN
F 3 "" H 9000 6450 50 0001 C CNN
1 9000 6450
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB4DACC
P 10050 6450
AR Path="/5F127084/5FB4DACC" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB4DACC" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 10050 6200 50 0001 C CNN
F 1 "GND" H 10055 6277 50 0000 C CNN
F 2 "" H 10050 6450 50 0001 C CNN
F 3 "" H 10050 6450 50 0001 C CNN
1 10050 6450
1 0 0 -1
$EndComp
NoConn ~ 9300 6200
NoConn ~ 10350 6200
$Comp
L power:GND #PWR?
U 1 1 5FB4DAD4
P 9750 6200
AR Path="/5F127084/5FB4DAD4" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB4DAD4" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 9750 5950 50 0001 C CNN
F 1 "GND" H 9755 6027 50 0000 C CNN
F 2 "" H 9750 6200 50 0001 C CNN
F 3 "" H 9750 6200 50 0001 C CNN
1 9750 6200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB4DADA
P 8700 6200
AR Path="/5F127084/5FB4DADA" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB4DADA" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 8700 5950 50 0001 C CNN
F 1 "GND" H 8705 6027 50 0000 C CNN
F 2 "" H 8700 6200 50 0001 C CNN
F 3 "" H 8700 6200 50 0001 C CNN
1 8700 6200
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS125 U?
U 3 1 5FB5D31E
P 8000 6200
AR Path="/5F127084/5FB5D31E" Ref="U?" Part="3"
AR Path="/5F9FC91E/5FB5D31E" Ref="U1" Part="3"
F 0 "U1" H 8000 6517 50 0000 C CNN
F 1 "74AHCT125N" H 8000 6426 50 0000 C CNN
F 2 "" H 8000 6200 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 8000 6200 50 0001 C CNN
3 8000 6200
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FB5D324
P 8000 6450
AR Path="/5F127084/5FB5D324" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB5D324" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 8000 6200 50 0001 C CNN
F 1 "GND" H 8005 6277 50 0000 C CNN
F 2 "" H 8000 6450 50 0001 C CNN
F 3 "" H 8000 6450 50 0001 C CNN
1 8000 6450
1 0 0 -1
$EndComp
NoConn ~ 8300 6200
$Comp
L power:GND #PWR?
U 1 1 5FB5D32B
P 7700 6200
AR Path="/5F127084/5FB5D32B" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FB5D32B" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 7700 5950 50 0001 C CNN
F 1 "GND" H 7705 6027 50 0000 C CNN
F 2 "" H 7700 6200 50 0001 C CNN
F 3 "" H 7700 6200 50 0001 C CNN
1 7700 6200
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS32 U4
U 2 1 5FBACE91
P 8000 5400
F 0 "U4" H 8000 5725 50 0000 C CNN
F 1 "74AHCT32" H 8000 5634 50 0000 C CNN
F 2 "" H 8000 5400 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 8000 5400 50 0001 C CNN
2 8000 5400
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS32 U4
U 3 1 5FBAEAA7
P 9000 5400
F 0 "U4" H 9000 5725 50 0000 C CNN
F 1 "74AHCT32" H 9000 5634 50 0000 C CNN
F 2 "" H 9000 5400 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 9000 5400 50 0001 C CNN
3 9000 5400
1 0 0 -1
$EndComp
$Comp
L 74xx:74LS32 U4
U 4 1 5FBB0137
P 10050 5400
F 0 "U4" H 10050 5725 50 0000 C CNN
F 1 "74AHCT32" H 10050 5634 50 0000 C CNN
F 2 "" H 10050 5400 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 10050 5400 50 0001 C CNN
4 10050 5400
1 0 0 -1
$EndComp
NoConn ~ 10350 5400
NoConn ~ 9300 5400
NoConn ~ 8300 5400
$Comp
L power:GND #PWR?
U 1 1 5FBC0CCE
P 7700 5500
AR Path="/5F127084/5FBC0CCE" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBC0CCE" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 7700 5250 50 0001 C CNN
F 1 "GND" H 7705 5327 50 0000 C CNN
F 2 "" H 7700 5500 50 0001 C CNN
F 3 "" H 7700 5500 50 0001 C CNN
1 7700 5500
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FBC5DA4
P 7700 5300
AR Path="/5F127084/5FBC5DA4" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBC5DA4" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 7700 5050 50 0001 C CNN
F 1 "GND" H 7705 5127 50 0000 C CNN
F 2 "" H 7700 5300 50 0001 C CNN
F 3 "" H 7700 5300 50 0001 C CNN
1 7700 5300
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FBC64DA
P 8700 5300
AR Path="/5F127084/5FBC64DA" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBC64DA" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 8700 5050 50 0001 C CNN
F 1 "GND" H 8705 5127 50 0000 C CNN
F 2 "" H 8700 5300 50 0001 C CNN
F 3 "" H 8700 5300 50 0001 C CNN
1 8700 5300
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FBC99D3
P 8700 5500
AR Path="/5F127084/5FBC99D3" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBC99D3" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 8700 5250 50 0001 C CNN
F 1 "GND" H 8705 5327 50 0000 C CNN
F 2 "" H 8700 5500 50 0001 C CNN
F 3 "" H 8700 5500 50 0001 C CNN
1 8700 5500
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FBCA225
P 9750 5300
AR Path="/5F127084/5FBCA225" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBCA225" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 9750 5050 50 0001 C CNN
F 1 "GND" H 9755 5127 50 0000 C CNN
F 2 "" H 9750 5300 50 0001 C CNN
F 3 "" H 9750 5300 50 0001 C CNN
1 9750 5300
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR?
U 1 1 5FBCAAAC
P 9750 5500
AR Path="/5F127084/5FBCAAAC" Ref="#PWR?" Part="1"
AR Path="/5F9FC91E/5FBCAAAC" Ref="#PWR?" Part="1"
F 0 "#PWR?" H 9750 5250 50 0001 C CNN
F 1 "GND" H 9755 5327 50 0000 C CNN
F 2 "" H 9750 5500 50 0001 C CNN
F 3 "" H 9750 5500 50 0001 C CNN
1 9750 5500
1 0 0 -1
$EndComp
Text Notes 7550 5000 0 50 ~ 0
Put unused gate in stable state by grounding inputs.
Wire Notes Line
10450 5000 10450 6700
Wire Notes Line
10450 6700 7550 6700
Wire Notes Line
7550 6700 7550 5000
Wire Notes Line
7550 5000 10450 5000
Wire Wire Line
2550 5750 3150 5750
Wire Wire Line
3150 5750 5000 5750
Connection ~ 3150 5750
Text Label 2550 5750 0 50 ~ 0
IO1
Wire Wire Line
3150 5750 3150 5500
Wire Wire Line
5000 5500 5000 5750
Wire Wire Line
2550 5250 2850 5250
Wire Wire Line
3450 5250 3800 5250
Text Label 2550 5250 0 50 ~ 0
TL2
Text Label 3800 5250 2 50 ~ 0
IO33
$Comp
L 74xx:74LS126 U?
U 3 1 5FBDB3D6
P 3150 5250
AR Path="/5F127084/5FBDB3D6" Ref="U?" Part="1"
AR Path="/5F9FC91E/5FBDB3D6" Ref="U2" Part="3"
F 0 "U2" H 3150 5567 50 0000 C CNN
F 1 "74AHCT126N" H 3150 5476 50 0000 C CNN
F 2 "" H 3150 5250 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS125" H 3150 5250 50 0001 C CNN
3 3150 5250
1 0 0 -1
$EndComp
Wire Wire Line
4400 5250 4700 5250
Wire Wire Line
5300 5250 5650 5250
Text Label 5650 5250 2 50 ~ 0
TL2
Text Label 4400 5250 0 50 ~ 0
IO33
$Comp
L 74xx:74LS125 U?
U 3 1 5FA228E7
P 5000 5250
AR Path="/5F127084/5FA228E7" Ref="U?" Part="1"
AR Path="/5F9FC91E/5FA228E7" Ref="U3" Part="3"
F 0 "U3" H 5000 5567 50 0000 C CNN
F 1 "74AHCT125N" H 5000 5476 50 0000 C CNN
F 2 "" H 5000 5250 50 0001 C CNN
F 3 "http://www.ti.com/general/docs/suppproductinfo.tsp?distId=10&gotoUrl=http%3A%2F%2Fwww.ti.com%2Flit%2Fgpn%2Fsn74ahct125" H 5000 5250 50 0001 C CNN
3 5000 5250
1 0 0 -1
$EndComp
$EndSCHEMATC