MacClassicRAMCard/MacClassicRAMCard.sch

EESchema Schematic File Version 4
EELAYER 30 0
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$Descr USLetter 11000 8500
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L Mechanical:MountingHole_Pad H3
U 1 1 5EDC8F09
P 9650 5450
F 0 "H3" H 9750 5453 50  0000 L CNN
F 1 " " H 9750 5408 50  0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 9650 5450 50  0001 C CNN
F 3 "~" H 9650 5450 50  0001 C CNN
	1    9650 5450
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole_Pad H4
U 1 1 5EDC8F0F
P 9950 5450
F 0 "H4" H 10050 5453 50  0000 L CNN
F 1 " " H 10050 5408 50  0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 9950 5450 50  0001 C CNN
F 3 "~" H 9950 5450 50  0001 C CNN
	1    9950 5450
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0145
U 1 1 5EDC9F0C
P 9950 5550
F 0 "#PWR0145" H 9950 5300 50  0001 C CNN
F 1 "GND" H 9950 5400 50  0000 C CNN
F 2 "" H 9950 5550 50  0001 C CNN
F 3 "" H 9950 5550 50  0001 C CNN
	1    9950 5550
	-1   0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole_Pad H2
U 1 1 5EE01FE6
P 9350 5450
F 0 "H2" H 9450 5453 50  0000 L CNN
F 1 " " H 9450 5408 50  0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 9350 5450 50  0001 C CNN
F 3 "~" H 9350 5450 50  0001 C CNN
	1    9350 5450
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:MountingHole_Pad H1
U 1 1 5EE01FE0
P 9050 5450
F 0 "H1" H 9150 5453 50  0000 L CNN
F 1 " " H 9150 5408 50  0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 9050 5450 50  0001 C CNN
F 3 "~" H 9050 5450 50  0001 C CNN
	1    9050 5450
	1    0    0    -1  
$EndComp
Wire Wire Line
	9050 5550 9350 5550
Connection ~ 9350 5550
Wire Wire Line
	9350 5550 9650 5550
Connection ~ 9650 5550
Wire Wire Line
	9650 5550 9950 5550
Connection ~ 9950 5550
$Comp
L power:+5V #PWR0112
U 1 1 60C0E969
P 7150 5850
F 0 "#PWR0112" H 7150 5700 50  0001 C CNN
F 1 "+5V" H 7150 6000 50  0000 C CNN
F 2 "" H 7150 5850 50  0001 C CNN
F 3 "" H 7150 5850 50  0001 C CNN
	1    7150 5850
	-1   0    0    -1  
$EndComp
$Comp
L Device:C_Small C6
U 1 1 60C1314C
P 9150 5950
F 0 "C6" H 9242 5996 50  0000 L CNN
F 1 "2u2" H 9242 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 9150 5950 50  0001 C CNN
F 3 "~" H 9150 5950 50  0001 C CNN
	1    9150 5950
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0113
U 1 1 60C13152
P 9550 6050
F 0 "#PWR0113" H 9550 5800 50  0001 C CNN
F 1 "GND" H 9550 5900 50  0000 C CNN
F 2 "" H 9550 6050 50  0001 C CNN
F 3 "" H 9550 6050 50  0001 C CNN
	1    9550 6050
	1    0    0    -1  
$EndComp
Connection ~ 9150 5850
Wire Wire Line
	8750 6050 9150 6050
Wire Wire Line
	8750 5850 9150 5850
$Comp
L Device:C_Small C5
U 1 1 60C13161
P 8750 5950
F 0 "C5" H 8842 5996 50  0000 L CNN
F 1 "2u2" H 8842 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 8750 5950 50  0001 C CNN
F 3 "~" H 8750 5950 50  0001 C CNN
	1    8750 5950
	1    0    0    -1  
$EndComp
Wire Wire Line
	9150 5850 9550 5850
$Comp
L Device:C_Small C7
U 1 1 60C1316B
P 9550 5950
F 0 "C7" H 9642 5996 50  0000 L CNN
F 1 "2u2" H 9642 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 9550 5950 50  0001 C CNN
F 3 "~" H 9550 5950 50  0001 C CNN
	1    9550 5950
	1    0    0    -1  
$EndComp
Connection ~ 9150 6050
Wire Wire Line
	9150 6050 9550 6050
Connection ~ 8750 5850
Connection ~ 8750 6050
Wire Wire Line
	7150 5850 7550 5850
Wire Wire Line
	7150 6050 7550 6050
$Comp
L Device:C_Small C2
U 1 1 60C16BC7
P 7550 5950
F 0 "C2" H 7642 5996 50  0000 L CNN
F 1 "2u2" H 7642 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 7550 5950 50  0001 C CNN
F 3 "~" H 7550 5950 50  0001 C CNN
	1    7550 5950
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C4
U 1 1 60C16BCD
P 8350 5950
F 0 "C4" H 8442 5996 50  0000 L CNN
F 1 "2u2" H 8442 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 8350 5950 50  0001 C CNN
F 3 "~" H 8350 5950 50  0001 C CNN
	1    8350 5950
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C1
U 1 1 60C16BD3
P 7150 5950
F 0 "C1" H 7242 5996 50  0000 L CNN
F 1 "2u2" H 7242 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 7150 5950 50  0001 C CNN
F 3 "~" H 7150 5950 50  0001 C CNN
	1    7150 5950
	1    0    0    -1  
$EndComp
$Comp
L Device:C_Small C3
U 1 1 60C16BD9
P 7950 5950
F 0 "C3" H 8042 5996 50  0000 L CNN
F 1 "2u2" H 8042 5905 50  0000 L CNN
F 2 "stdpads:C_0805" H 7950 5950 50  0001 C CNN
F 3 "~" H 7950 5950 50  0001 C CNN
	1    7950 5950
	1    0    0    -1  
$EndComp
Connection ~ 8350 5850
Wire Wire Line
	8350 5850 8750 5850
Connection ~ 8350 6050
Wire Wire Line
	8350 6050 8750 6050
Connection ~ 7950 5850
Wire Wire Line
	7950 5850 8350 5850
Connection ~ 7950 6050
Wire Wire Line
	7950 6050 8350 6050
Connection ~ 7550 5850
Wire Wire Line
	7550 5850 7950 5850
Connection ~ 7550 6050
Wire Wire Line
	7550 6050 7950 6050
Connection ~ 7150 5850
$Comp
L Mechanical:Fiducial FID4
U 1 1 5EDCCFC0
P 8050 5700
F 0 "FID4" H 8135 5746 50  0000 L CNN
F 1 "Fiducial" H 8135 5655 50  0000 L CNN
F 2 "stdpads:Fiducial" H 8050 5700 50  0001 C CNN
F 3 "~" H 8050 5700 50  0001 C CNN
	1    8050 5700
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:Fiducial FID3
U 1 1 5EDCCCF0
P 7550 5700
F 0 "FID3" H 7635 5746 50  0000 L CNN
F 1 "Fiducial" H 7635 5655 50  0000 L CNN
F 2 "stdpads:Fiducial" H 7550 5700 50  0001 C CNN
F 3 "~" H 7550 5700 50  0001 C CNN
	1    7550 5700
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:Fiducial FID2
U 1 1 5EDCCA31
P 9050 5700
F 0 "FID2" H 9135 5746 50  0000 L CNN
F 1 "Fiducial" H 9135 5655 50  0000 L CNN
F 2 "stdpads:Fiducial" H 9050 5700 50  0001 C CNN
F 3 "~" H 9050 5700 50  0001 C CNN
	1    9050 5700
	1    0    0    -1  
$EndComp
$Comp
L Mechanical:Fiducial FID1
U 1 1 5EDCC581
P 8550 5700
F 0 "FID1" H 8635 5746 50  0000 L CNN
F 1 "Fiducial" H 8635 5655 50  0000 L CNN
F 2 "stdpads:Fiducial" H 8550 5700 50  0001 C CNN
F 3 "~" H 8550 5700 50  0001 C CNN
	1    8550 5700
	1    0    0    -1  
$EndComp
Text Label 5800 2450 2    50   ~ 0
A0
Text Label 5800 2550 2    50   ~ 0
A1
Text Label 5800 2650 2    50   ~ 0
A2
Text Label 5800 2750 2    50   ~ 0
A3
Text Label 5800 2850 2    50   ~ 0
A4
Text Label 5800 2950 2    50   ~ 0
A5
Text Label 5800 3050 2    50   ~ 0
A6
Text Label 5800 3150 2    50   ~ 0
A7
Text Label 5800 3250 2    50   ~ 0
A8
Text Label 5800 3350 2    50   ~ 0
A9
Connection ~ 9550 6050
$Comp
L GW_RAM:DRAM-1Mx16-SOP-42 U1
U 1 1 60CFBCF9
P 6200 3150
F 0 "U1" H 6200 3950 50  0000 C CNN
F 1 "AS4C1M16F5" V 6200 3150 50  0000 C CNN
F 2 "stdpads:SOJ-42_400mil" H 6200 2200 50  0001 C CNN
F 3 "" H 6200 2800 50  0001 C CNN
	1    6200 3150
	1    0    0    -1  
$EndComp
Text Label 5800 3550 2    50   ~ 0
U~CAS~0
Text Label 5800 3650 2    50   ~ 0
~RAS~
Text Label 5800 3750 2    50   ~ 0
~WE~
Text Label 5800 3850 2    50   ~ 0
~OE~0
Text Label 5800 3450 2    50   ~ 0
L~CAS~0
$Comp
L power:GND #PWR0101
U 1 1 60D0B9EF
P 5800 3950
F 0 "#PWR0101" H 5800 3700 50  0001 C CNN
F 1 "GND" H 5800 3800 50  0000 C CNN
F 2 "" H 5800 3950 50  0001 C CNN
F 3 "" H 5800 3950 50  0001 C CNN
	1    5800 3950
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0102
U 1 1 60D0BE9E
P 5800 2350
F 0 "#PWR0102" H 5800 2200 50  0001 C CNN
F 1 "+5V" H 5800 2500 50  0000 C CNN
F 2 "" H 5800 2350 50  0001 C CNN
F 3 "" H 5800 2350 50  0001 C CNN
	1    5800 2350
	-1   0    0    -1  
$EndComp
Text Label 7400 2450 2    50   ~ 0
A0
Text Label 7400 2550 2    50   ~ 0
A1
Text Label 7400 2650 2    50   ~ 0
A2
Text Label 7400 2750 2    50   ~ 0
A3
Text Label 7400 2850 2    50   ~ 0
A4
Text Label 7400 2950 2    50   ~ 0
A5
Text Label 7400 3050 2    50   ~ 0
A6
Text Label 7400 3150 2    50   ~ 0
A7
Text Label 7400 3250 2    50   ~ 0
A8
Text Label 7400 3350 2    50   ~ 0
A9
$Comp
L GW_RAM:DRAM-1Mx16-SOP-42 U2
U 1 1 60D12031
P 7800 3150
F 0 "U2" H 7800 3950 50  0000 C CNN
F 1 "AS4C1M16F5" V 7800 3150 50  0000 C CNN
F 2 "stdpads:SOJ-42_400mil" H 7800 2200 50  0001 C CNN
F 3 "" H 7800 2800 50  0001 C CNN
	1    7800 3150
	1    0    0    -1  
$EndComp
Text Label 7400 3550 2    50   ~ 0
U~CAS~1
Text Label 7400 3650 2    50   ~ 0
~RAS~
Text Label 7400 3750 2    50   ~ 0
~WE~
Text Label 7400 3850 2    50   ~ 0
~OE~1
Text Label 7400 3450 2    50   ~ 0
L~CAS~1
Text Label 8200 3350 0    50   ~ 0
DQ8
$Comp
L power:GND #PWR0103
U 1 1 60D12044
P 7400 3950
F 0 "#PWR0103" H 7400 3700 50  0001 C CNN
F 1 "GND" H 7400 3800 50  0000 C CNN
F 2 "" H 7400 3950 50  0001 C CNN
F 3 "" H 7400 3950 50  0001 C CNN
	1    7400 3950
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0104
U 1 1 60D1204A
P 7400 2350
F 0 "#PWR0104" H 7400 2200 50  0001 C CNN
F 1 "+5V" H 7400 2500 50  0000 C CNN
F 2 "" H 7400 2350 50  0001 C CNN
F 3 "" H 7400 2350 50  0001 C CNN
	1    7400 2350
	-1   0    0    -1  
$EndComp
$Comp
L power:GND #PWR0105
U 1 1 60D18BDD
P 1250 2650
F 0 "#PWR0105" H 1250 2400 50  0001 C CNN
F 1 "GND" H 1250 2500 50  0000 C CNN
F 2 "" H 1250 2650 50  0001 C CNN
F 3 "" H 1250 2650 50  0001 C CNN
	1    1250 2650
	-1   0    0    1   
$EndComp
$Comp
L power:GND #PWR0106
U 1 1 60D1928E
P 1750 2650
F 0 "#PWR0106" H 1750 2400 50  0001 C CNN
F 1 "GND" H 1750 2500 50  0000 C CNN
F 2 "" H 1750 2650 50  0001 C CNN
F 3 "" H 1750 2650 50  0001 C CNN
	1    1750 2650
	-1   0    0    1   
$EndComp
$Comp
L power:+5V #PWR0107
U 1 1 60D1968F
P 1950 2650
F 0 "#PWR0107" H 1950 2500 50  0001 C CNN
F 1 "+5V" H 1950 2800 50  0000 C CNN
F 2 "" H 1950 2650 50  0001 C CNN
F 3 "" H 1950 2650 50  0001 C CNN
	1    1950 2650
	-1   0    0    -1  
$EndComp
Wire Wire Line
	1950 2650 1950 2750
Wire Wire Line
	1950 2750 1750 2750
$Comp
L power:+5V #PWR0108
U 1 1 60D1A5D4
P 1050 2650
F 0 "#PWR0108" H 1050 2500 50  0001 C CNN
F 1 "+5V" H 1050 2800 50  0000 C CNN
F 2 "" H 1050 2650 50  0001 C CNN
F 3 "" H 1050 2650 50  0001 C CNN
	1    1050 2650
	1    0    0    -1  
$EndComp
Wire Wire Line
	1050 2650 1050 2750
Text Label 1750 2850 0    50   ~ 0
L~CAS~C
Text Label 1250 2950 2    50   ~ 0
L~CAS~E
Text Label 1750 2950 0    50   ~ 0
U~CAS~E
Text Label 1250 3050 2    50   ~ 0
U~CAS~D
Text Label 1750 3050 0    50   ~ 0
L~CAS~D
Text Label 1250 3150 2    50   ~ 0
~SIMM~
Text Label 1750 3150 0    50   ~ 0
~EXP~
Text Label 1750 3250 0    50   ~ 0
DQ4
Text Label 1750 3350 0    50   ~ 0
DQ5
Text Label 1750 3450 0    50   ~ 0
DQ6
Text Label 1750 3550 0    50   ~ 0
DQ7
Text Label 1250 3550 2    50   ~ 0
DQ3
Text Label 1250 3350 2    50   ~ 0
DQ1
Text Label 1250 3450 2    50   ~ 0
DQ2
Text Label 1250 3250 2    50   ~ 0
DQ0
Text Label 1250 4450 2    50   ~ 0
DQ12
Text Label 1250 4550 2    50   ~ 0
DQ13
Text Label 1750 4450 0    50   ~ 0
DQ14
Text Label 1750 4550 0    50   ~ 0
DQ15
Text Label 1750 3750 0    50   ~ 0
DQ11
Text Label 1250 3750 2    50   ~ 0
DQ9
Text Label 1750 3650 0    50   ~ 0
DQ10
Text Label 1250 3650 2    50   ~ 0
DQ8
$Comp
L power:GND #PWR0109
U 1 1 60D2005E
P 1750 4750
F 0 "#PWR0109" H 1750 4500 50  0001 C CNN
F 1 "GND" H 1750 4600 50  0000 C CNN
F 2 "" H 1750 4750 50  0001 C CNN
F 3 "" H 1750 4750 50  0001 C CNN
	1    1750 4750
	-1   0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0110
U 1 1 60D20064
P 1950 4750
F 0 "#PWR0110" H 1950 4600 50  0001 C CNN
F 1 "+5V" H 1950 4900 50  0000 C CNN
F 2 "" H 1950 4750 50  0001 C CNN
F 3 "" H 1950 4750 50  0001 C CNN
	1    1950 4750
	-1   0    0    1   
$EndComp
Wire Wire Line
	1950 4750 1950 4650
Wire Wire Line
	1950 4650 1750 4650
$Comp
L power:GND #PWR0111
U 1 1 60D20E22
P 1250 4750
F 0 "#PWR0111" H 1250 4500 50  0001 C CNN
F 1 "GND" H 1250 4600 50  0000 C CNN
F 2 "" H 1250 4750 50  0001 C CNN
F 3 "" H 1250 4750 50  0001 C CNN
	1    1250 4750
	1    0    0    -1  
$EndComp
$Comp
L power:+5V #PWR0114
U 1 1 60D20E28
P 1050 4750
F 0 "#PWR0114" H 1050 4600 50  0001 C CNN
F 1 "+5V" H 1050 4900 50  0000 C CNN
F 2 "" H 1050 4750 50  0001 C CNN
F 3 "" H 1050 4750 50  0001 C CNN
	1    1050 4750
	1    0    0    1   
$EndComp
Wire Wire Line
	1050 4750 1050 4650
Text Label 1250 4350 2    50   ~ 0
~RAS~
Text Label 1750 4350 0    50   ~ 0
~WE~
Text Label 1250 4150 2    50   ~ 0
A0
Text Label 1250 4050 2    50   ~ 0
A1
Text Label 1250 3950 2    50   ~ 0
A2
Text Label 1250 3850 2    50   ~ 0
A3
Text Label 1750 3850 0    50   ~ 0
A4
Text Label 1750 3950 0    50   ~ 0
A5
Text Label 1750 4050 0    50   ~ 0
A6
Text Label 1750 4150 0    50   ~ 0
A7
Text Label 1250 4250 2    50   ~ 0
A8
Text Label 1750 4250 0    50   ~ 0
A9
$Comp
L 74xx:74LS08 U3
U 2 2 60D271A2
P 2850 3550
F 0 "U3" H 2850 3550 50  0000 C CNN
F 1 "74LS08" H 2850 3750 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2850 3550 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2850 3550 50  0001 C CNN
	2    2850 3550
	1    0    0    -1  
$EndComp
Text Label 1250 2850 2    50   ~ 0
U~CAS~C
Text Label 2250 3450 0    50   ~ 0
U~CAS~C
Text Label 2250 3650 0    50   ~ 0
U~CAS~D
Text Label 2250 3850 0    50   ~ 0
L~CAS~C
Text Label 2250 4050 0    50   ~ 0
L~CAS~D
Text Label 2250 4350 0    50   ~ 0
U~CAS~E
Wire Wire Line
	2550 3850 2250 3850
Wire Wire Line
	2250 4050 2550 4050
Wire Wire Line
	2250 3650 2550 3650
Wire Wire Line
	2250 3450 2550 3450
Text Label 3150 3550 0    50   ~ 0
U~CAS~0
Text Label 3150 3950 0    50   ~ 0
L~CAS~0
Wire Wire Line
	3450 3950 3150 3950
Wire Wire Line
	3150 3550 3450 3550
Text Label 3450 4350 2    50   ~ 0
U~CAS~1
Wire Wire Line
	3450 4350 2250 4350
Text Label 2250 4550 0    50   ~ 0
L~CAS~E
Text Label 3450 4550 2    50   ~ 0
L~CAS~1
Wire Wire Line
	3450 4550 2250 4550
$Comp
L 74xx:74LS08 U3
U 1 2 60D2CF76
P 2850 3950
F 0 "U3" H 2850 3950 50  0000 C CNN
F 1 "74LS08" H 2850 4150 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 2850 3950 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 2850 3950 50  0001 C CNN
	1    2850 3950
	1    0    0    -1  
$EndComp
Wire Wire Line
	3450 3850 3450 3950
Wire Wire Line
	3450 3650 3450 3550
Text Label 4250 3750 2    50   ~ 0
~OE~0
Wire Wire Line
	4250 3750 4050 3750
Text Label 4250 4450 2    50   ~ 0
~OE~1
Wire Wire Line
	4250 4450 4050 4450
$Comp
L power:+5V #PWR0116
U 1 1 60D54A33
P 3800 5100
F 0 "#PWR0116" H 3800 4950 50  0001 C CNN
F 1 "+5V" H 3800 5250 50  0000 C CNN
F 2 "" H 3800 5100 50  0001 C CNN
F 3 "" H 3800 5100 50  0001 C CNN
	1    3800 5100
	1    0    0    -1  
$EndComp
$Comp
L power:GND #PWR0117
U 1 1 60D5518C
P 3800 6100
F 0 "#PWR0117" H 3800 5850 50  0001 C CNN
F 1 "GND" H 3800 5950 50  0000 C CNN
F 2 "" H 3800 6100 50  0001 C CNN
F 3 "" H 3800 6100 50  0001 C CNN
	1    3800 6100
	-1   0    0    -1  
$EndComp
Text Label 3450 2200 0    50   ~ 0
~SIMM~
Text Label 3450 2300 0    50   ~ 0
~EXP~
$Comp
L power:GND #PWR0118
U 1 1 60D5688B
P 3650 2600
F 0 "#PWR0118" H 3650 2350 50  0001 C CNN
F 1 "GND" H 3650 2450 50  0000 C CNN
F 2 "" H 3650 2600 50  0001 C CNN
F 3 "" H 3650 2600 50  0001 C CNN
	1    3650 2600
	1    0    0    -1  
$EndComp
Wire Wire Line
	3650 2600 3650 2300
Wire Wire Line
	3650 2200 3450 2200
Wire Wire Line
	3450 2300 3650 2300
Connection ~ 3650 2300
Wire Wire Line
	3650 2300 3650 2200
$Comp
L 74xx:74LS08 U3
U 4 2 60D4623E
P 3750 4450
F 0 "U3" H 3750 4450 50  0000 C CNN
F 1 "74LS08" H 3750 4650 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3750 4450 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 3750 4450 50  0001 C CNN
	4    3750 4450
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS08 U3
U 5 1 60D535D3
P 3800 5600
F 0 "U3" H 4030 5646 50  0000 L CNN
F 1 "74LS08" H 4030 5555 50  0000 L CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3800 5600 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 3800 5600 50  0001 C CNN
	5    3800 5600
	1    0    0    -1  
$EndComp
Wire Wire Line
	1050 4650 1250 4650
Wire Wire Line
	1050 2750 1250 2750
$Comp
L Connector_Generic:Conn_02x22_Odd_Even J1
U 1 1 60D165FF
P 1550 3650
F 0 "J1" H 1600 4750 50  0000 C CNN
F 1 "RAM Exp." H 1600 2450 50  0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_2x22_P2.54mm_Horizontal" H 1550 3650 50  0001 C CNN
F 3 "~" H 1550 3650 50  0001 C CNN
	1    1550 3650
	-1   0    0    -1  
$EndComp
$Comp
L 74xx:74LS08 U3
U 3 2 60D3EADF
P 3750 3750
F 0 "U3" H 3750 3750 50  0000 C CNN
F 1 "74LS08" H 3750 3950 50  0000 C CNN
F 2 "stdpads:SOIC-14_3.9mm" H 3750 3750 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 3750 3750 50  0001 C CNN
	3    3750 3750
	1    0    0    -1  
$EndComp
Text Label 6600 2950 0    50   ~ 0
DQ0
Text Label 6600 2750 0    50   ~ 0
DQ1
Text Label 6600 2850 0    50   ~ 0
DQ5
Text Label 6600 3050 0    50   ~ 0
DQ4
Text Label 6600 2650 0    50   ~ 0
DQ6
Text Label 6600 2450 0    50   ~ 0
DQ7
Text Label 6600 2550 0    50   ~ 0
DQ2
Text Label 6600 2350 0    50   ~ 0
DQ3
Text Label 8200 2950 0    50   ~ 0
DQ0
Text Label 8200 2750 0    50   ~ 0
DQ1
Text Label 8200 2850 0    50   ~ 0
DQ5
Text Label 8200 3050 0    50   ~ 0
DQ4
Text Label 8200 2650 0    50   ~ 0
DQ6
Text Label 8200 2450 0    50   ~ 0
DQ7
Text Label 8200 2550 0    50   ~ 0
DQ2
Text Label 8200 2350 0    50   ~ 0
DQ3
Text Label 8200 3750 0    50   ~ 0
DQ12
Text Label 8200 3950 0    50   ~ 0
DQ13
Text Label 8200 3650 0    50   ~ 0
DQ14
Text Label 8200 3850 0    50   ~ 0
DQ15
Text Label 6600 3750 0    50   ~ 0
DQ12
Text Label 6600 3950 0    50   ~ 0
DQ13
Text Label 6600 3650 0    50   ~ 0
DQ14
Text Label 6600 3850 0    50   ~ 0
DQ15
Text Label 8200 3250 0    50   ~ 0
DQ10
Text Label 8200 3550 0    50   ~ 0
DQ9
Text Label 8200 3450 0    50   ~ 0
DQ11
Text Label 6600 3350 0    50   ~ 0
DQ8
Text Label 6600 3250 0    50   ~ 0
DQ10
Text Label 6600 3550 0    50   ~ 0
DQ9
Text Label 6600 3450 0    50   ~ 0
DQ11
$EndSCHEMATC