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F 1 "+3V3" H 4000 5500 50 0000 C CNN
F 2 "" H 4000 5350 50 0001 C CNN
F 3 "" H 4000 5350 50 0001 C CNN
1 4000 5350
-1 0 0 -1
$EndComp
$Comp
L GW_Logic:74245 U8
U 1 1 5EC89362
P 4400 3200
F 0 "U8" H 4400 3800 50 0000 C CNN
F 1 "74AHC245" H 4400 2600 50 0000 C CNN
F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 2550 50 0001 C TNN
F 3 "" H 4400 3300 60 0001 C CNN
1 4400 3200
-1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR0128
U 1 1 5EC8936E
P 4000 2750
F 0 "#PWR0128" H 4000 2600 50 0001 C CNN
F 1 "+3V3" H 4000 2900 50 0000 C CNN
F 2 "" H 4000 2750 50 0001 C CNN
F 3 "" H 4000 2750 50 0001 C CNN
1 4000 2750
-1 0 0 -1
$EndComp
$Comp
L GW_Logic:74245 U7
U 1 1 5EC89375
P 4400 1900
F 0 "U7" H 4400 2500 50 0000 C CNN
F 1 "74AHC245" H 4400 1300 50 0000 C CNN
F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 1250 50 0001 C TNN
F 3 "" H 4400 2000 60 0001 C CNN
1 4400 1900
-1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR0129
U 1 1 5EC89381
P 4000 1450
F 0 "#PWR0129" H 4000 1300 50 0001 C CNN
F 1 "+3V3" H 4000 1600 50 0000 C CNN
F 2 "" H 4000 1450 50 0001 C CNN
F 3 "" H 4000 1450 50 0001 C CNN
1 4000 1450
-1 0 0 -1
$EndComp
Wire Wire Line
3900 4150 4000 4150
$Comp
L power:GND #PWR0133
U 1 1 5EC893CB
P 3800 5250
F 0 "#PWR0133" H 3800 5000 50 0001 C CNN
F 1 "GND" H 3800 5100 50 0000 C CNN
F 2 "" H 3800 5250 50 0001 C CNN
F 3 "" H 3800 5250 50 0001 C CNN
1 3800 5250
1 0 0 -1
$EndComp
Wire Wire Line
3800 5250 3900 5250
Wire Wire Line
3900 5250 3900 5450
Wire Wire Line
3900 5450 4000 5450
$Comp
L power:GND #PWR0134
U 1 1 5EC91B3C
P 4900 1250
F 0 "#PWR0134" H 4900 1000 50 0001 C CNN
F 1 "GND" H 4900 1100 50 0000 C CNN
F 2 "" H 4900 1250 50 0001 C CNN
F 3 "" H 4900 1250 50 0001 C CNN
1 4900 1250
-1 0 0 -1
$EndComp
Wire Wire Line
4900 1250 4800 1250
Text Label 4000 2350 2 50 ~ 0
A0
Text Label 4000 2250 2 50 ~ 0
A1
Text Label 4000 2150 2 50 ~ 0
A2
Text Label 4000 2050 2 50 ~ 0
A3
Text Label 4000 1950 2 50 ~ 0
A4
Text Label 4000 1850 2 50 ~ 0
A5
Text Label 4000 1750 2 50 ~ 0
A6
Text Label 4000 1650 2 50 ~ 0
A7
Text Label 4000 4650 2 50 ~ 0
A10
Text Label 4000 4550 2 50 ~ 0
A11
Text Label 4000 4450 2 50 ~ 0
A12
Text Label 4000 4350 2 50 ~ 0
A13
Text Label 4000 4250 2 50 ~ 0
A14
Text Label 4000 6250 2 50 ~ 0
A15
Text Label 4000 6150 2 50 ~ 0
A16
Text Label 4000 6050 2 50 ~ 0
A17
Text Label 4000 5950 2 50 ~ 0
A18
Text Label 4000 5850 2 50 ~ 0
A19
Text Label 4000 5750 2 50 ~ 0
A20
Text Label 4000 5650 2 50 ~ 0
A21
Text Label 4000 5550 2 50 ~ 0
A22
Text Label 4000 4950 2 50 ~ 0
A8
Text Label 4000 4850 2 50 ~ 0
A9
Text Label 4800 2250 0 50 ~ 0
RA0
Text Label 4800 2150 0 50 ~ 0
RA1
Text Label 4800 2050 0 50 ~ 0
RA2
Text Label 4800 1950 0 50 ~ 0
RA3
Text Label 4800 1850 0 50 ~ 0
RA4
Text Label 4800 1750 0 50 ~ 0
RA5
Text Label 4800 1650 0 50 ~ 0
RA6
Text Label 4800 1550 0 50 ~ 0
RA7
$Comp
L power:GND #PWR0135
U 1 1 5EC985CF
P 4800 2350
F 0 "#PWR0135" H 4800 2100 50 0001 C CNN
F 1 "GND" H 4800 2200 50 0000 C CNN
F 2 "" H 4800 2350 50 0001 C CNN
F 3 "" H 4800 2350 50 0001 C CNN
1 4800 2350
-1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0136
U 1 1 5EC98E92
P 4800 3650
F 0 "#PWR0136" H 4800 3400 50 0001 C CNN
F 1 "GND" H 4800 3500 50 0000 C CNN
F 2 "" H 4800 3650 50 0001 C CNN
F 3 "" H 4800 3650 50 0001 C CNN
1 4800 3650
-1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0137
U 1 1 5EC99C6D
P 4800 4950
F 0 "#PWR0137" H 4800 4700 50 0001 C CNN
F 1 "GND" H 4800 4800 50 0000 C CNN
F 2 "" H 4800 4950 50 0001 C CNN
F 3 "" H 4800 4950 50 0001 C CNN
1 4800 4950
-1 0 0 -1
$EndComp
Text Label 4800 3250 0 50 ~ 0
R~CS~
Text Label 4800 3050 0 50 ~ 0
R~OE~
Text Label 4800 2850 0 50 ~ 0
R~WE~
Text Label 4800 4850 0 50 ~ 0
RA8
Text Label 4800 4750 0 50 ~ 0
RA9
Wire Wire Line
4800 1450 4800 1250
$Comp
L power:GND #PWR0138
U 1 1 5EC9E4BB
P 4900 2550
F 0 "#PWR0138" H 4900 2300 50 0001 C CNN
F 1 "GND" H 4900 2400 50 0000 C CNN
F 2 "" H 4900 2550 50 0001 C CNN
F 3 "" H 4900 2550 50 0001 C CNN
1 4900 2550
-1 0 0 -1
$EndComp
Wire Wire Line
4900 2550 4800 2550
Wire Wire Line
4800 2750 4800 2550
$Comp
L power:GND #PWR0139
U 1 1 5EC9F7AD
P 4900 3850
F 0 "#PWR0139" H 4900 3600 50 0001 C CNN
F 1 "GND" H 4900 3700 50 0000 C CNN
F 2 "" H 4900 3850 50 0001 C CNN
F 3 "" H 4900 3850 50 0001 C CNN
1 4900 3850
-1 0 0 -1
$EndComp
Wire Wire Line
4900 3850 4800 3850
Wire Wire Line
4800 4050 4800 3850
$Comp
L power:GND #PWR0140
U 1 1 5ECA061B
P 4900 5150
F 0 "#PWR0140" H 4900 4900 50 0001 C CNN
F 1 "GND" H 4900 5000 50 0000 C CNN
F 2 "" H 4900 5150 50 0001 C CNN
F 3 "" H 4900 5150 50 0001 C CNN
1 4900 5150
-1 0 0 -1
$EndComp
Wire Wire Line
4900 5150 4800 5150
Wire Wire Line
4800 5350 4800 5150
$Comp
L power:GND #PWR0141
U 1 1 5ECABC17
P 7950 6050
F 0 "#PWR0141" H 7950 5800 50 0001 C CNN
F 1 "GND" H 7950 5900 50 0000 C CNN
F 2 "" H 7950 6050 50 0001 C CNN
F 3 "" H 7950 6050 50 0001 C CNN
1 7950 6050
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C7
U 1 1 5ECABC36
P 7950 5550
F 0 "C7" H 8042 5596 50 0000 L CNN
F 1 "2u2" H 8042 5505 50 0000 L CNN
F 2 "stdpads:C_0603" H 7950 5550 50 0001 C CNN
F 3 "~" H 7950 5550 50 0001 C CNN
1 7950 5550
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C8
U 1 1 5ECABC3C
P 5600 5950
F 0 "C8" H 5692 5996 50 0000 L CNN
F 1 "2u2" H 5692 5905 50 0000 L CNN
F 2 "stdpads:C_0603" H 5600 5950 50 0001 C CNN
F 3 "~" H 5600 5950 50 0001 C CNN
1 5600 5950
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C9
U 1 1 5ECABC42
P 6000 5950
F 0 "C9" H 6092 5996 50 0000 L CNN
F 1 "2u2" H 6092 5905 50 0000 L CNN
F 2 "stdpads:C_0603" H 6000 5950 50 0001 C CNN
F 3 "~" H 6000 5950 50 0001 C CNN
1 6000 5950
1 0 0 -1
$EndComp
Text Label 8050 5000 0 50 ~ 0
R~WE~
Text Label 8050 5100 0 50 ~ 0
R~OE~
Text Label 8050 4900 0 50 ~ 0
R~CS~
$Comp
L power:+3V3 #PWR0142
U 1 1 5ECAF49C
P 5600 5850
F 0 "#PWR0142" H 5600 5700 50 0001 C CNN
F 1 "+3V3" H 5600 6000 50 0000 C CNN
F 2 "" H 5600 5850 50 0001 C CNN
F 3 "" H 5600 5850 50 0001 C CNN
1 5600 5850
1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR0143
U 1 1 5ECAFA85
P 6750 5450
F 0 "#PWR0143" H 6750 5300 50 0001 C CNN
F 1 "+3V3" H 6750 5600 50 0000 C CNN
F 2 "" H 6750 5450 50 0001 C CNN
F 3 "" H 6750 5450 50 0001 C CNN
1 6750 5450
1 0 0 -1
$EndComp
$Comp
L Regulator_Linear:LD1117S33TR_SOT223 U11
U 1 1 5ECB0C15
P 6750 1450
F 0 "U11" H 6750 1692 50 0000 C CNN
F 1 "LD1117S33" H 6750 1601 50 0000 C CNN
F 2 "stdpads:SOT-223" H 6750 1650 50 0001 C CNN
F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/CD00000544.pdf" H 6850 1200 50 0001 C CNN
1 6750 1450
1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR0144
U 1 1 5ECB1C16
P 7050 1450
F 0 "#PWR0144" H 7050 1300 50 0001 C CNN
F 1 "+3V3" H 7050 1600 50 0000 C CNN
F 2 "" H 7050 1450 50 0001 C CNN
F 3 "" H 7050 1450 50 0001 C CNN
1 7050 1450
-1 0 0 -1
$EndComp
Wire Wire Line
5600 5450 6000 5450
Wire Wire Line
5600 5650 6000 5650
$Comp
L Device:C_Small C1
U 1 1 5ECB95BB
P 5600 5550
F 0 "C1" H 5692 5596 50 0000 L CNN
F 1 "2u2" H 5692 5505 50 0000 L CNN
F 2 "stdpads:C_0603" H 5600 5550 50 0001 C CNN
F 3 "~" H 5600 5550 50 0001 C CNN
1 5600 5550
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C2
U 1 1 5ECB95C1
P 6000 5550
F 0 "C2" H 6092 5596 50 0000 L CNN
F 1 "2u2" H 6092 5505 50 0000 L CNN
F 2 "stdpads:C_0603" H 6000 5550 50 0001 C CNN
F 3 "~" H 6000 5550 50 0001 C CNN
1 6000 5550
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C3
U 1 1 5ECB95C7
P 6400 5550
F 0 "C3" H 6492 5596 50 0000 L CNN
F 1 "2u2" H 6492 5505 50 0000 L CNN
F 2 "stdpads:C_0603" H 6400 5550 50 0001 C CNN
F 3 "~" H 6400 5550 50 0001 C CNN
1 6400 5550
1 0 0 -1
$EndComp
Connection ~ 6000 5450
Wire Wire Line
6000 5450 6400 5450
Connection ~ 6000 5650
Wire Wire Line
6000 5650 6400 5650
$Comp
L power:+5V #PWR0146
U 1 1 5ECCC504
P 5600 5450
F 0 "#PWR0146" H 5600 5300 50 0001 C CNN
F 1 "+5V" H 5600 5600 50 0000 C CNN
F 2 "" H 5600 5450 50 0001 C CNN
F 3 "" H 5600 5450 50 0001 C CNN
1 5600 5450
1 0 0 -1
$EndComp
Connection ~ 5600 5450
Text Label 4800 4550 0 50 ~ 0
RA10
Text Label 4800 4450 0 50 ~ 0
RA11
Text Label 4800 4350 0 50 ~ 0
RA12
Text Label 4800 4250 0 50 ~ 0
RA13
Text Label 4800 4150 0 50 ~ 0
RA14
Text Label 4800 6150 0 50 ~ 0
RA15
Text Label 4800 6050 0 50 ~ 0
RA16
Text Label 4800 5950 0 50 ~ 0
RA17
Text Label 4800 5450 0 50 ~ 0
RA22
$Comp
L power:+5V #PWR0147
U 1 1 5ECD0119
P 6450 1450
F 0 "#PWR0147" H 6450 1300 50 0001 C CNN
F 1 "+5V" H 6450 1600 50 0000 C CNN
F 2 "" H 6450 1450 50 0001 C CNN
F 3 "" H 6450 1450 50 0001 C CNN
1 6450 1450
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0148
U 1 1 5ECD0869
P 6750 1750
F 0 "#PWR0148" H 6750 1500 50 0001 C CNN
F 1 "GND" H 6750 1600 50 0000 C CNN
F 2 "" H 6750 1750 50 0001 C CNN
F 3 "" H 6750 1750 50 0001 C CNN
1 6750 1750
-1 0 0 -1
$EndComp
Text Label 4800 5550 0 50 ~ 0
RA21
Text Label 4800 5650 0 50 ~ 0
RA20
Text Label 4800 5750 0 50 ~ 0
RA19
Text Label 4800 5850 0 50 ~ 0
RA18
Text Label 4000 2950 2 50 ~ 0
~WE~
Text Label 4000 3150 2 50 ~ 0
~OE~
Text Label 4000 3350 2 50 ~ 0
~CS~
$Comp
L Device:C_Small C11
U 1 1 5ECABC23
P 6750 5950
F 0 "C11" H 6842 5996 50 0000 L CNN
F 1 "2u2" H 6842 5905 50 0000 L CNN
F 2 "stdpads:C_0603" H 6750 5950 50 0001 C CNN
F 3 "~" H 6750 5950 50 0001 C CNN
1 6750 5950
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C10
U 1 1 5ECABC1D
P 6350 5950
F 0 "C10" H 6442 5996 50 0000 L CNN
F 1 "2u2" H 6442 5905 50 0000 L CNN
F 2 "stdpads:C_0603" H 6350 5950 50 0001 C CNN
F 3 "~" H 6350 5950 50 0001 C CNN
1 6350 5950
1 0 0 -1
$EndComp
$Comp
L Device:C_Small C4
U 1 1 5ECABC30
P 6750 5550
F 0 "C4" H 6842 5596 50 0000 L CNN
F 1 "2u2" H 6842 5505 50 0000 L CNN
F 2 "stdpads:C_0603" H 6750 5550 50 0001 C CNN
F 3 "~" H 6750 5550 50 0001 C CNN
1 6750 5550
1 0 0 -1
$EndComp
Connection ~ 6400 5650
Wire Wire Line
6750 5450 7150 5450
Wire Wire Line
6400 5650 6750 5650
Connection ~ 6750 5450
Connection ~ 6750 5650
Wire Wire Line
6750 5650 7150 5650
Connection ~ 7150 5450
Wire Wire Line
7150 5450 7550 5450
Connection ~ 7150 5650
Wire Wire Line
7150 5650 7550 5650
Connection ~ 7550 5450
Wire Wire Line
7550 5450 7950 5450
Connection ~ 7550 5650
Wire Wire Line
7550 5650 7950 5650
Connection ~ 7950 5650
Wire Wire Line
5600 5850 6000 5850
Wire Wire Line
5600 6050 6000 6050
Connection ~ 5600 5850
Wire Wire Line
6350 5850 6750 5850
Wire Wire Line
6350 6050 6750 6050
Connection ~ 6750 5850
Wire Wire Line
6750 5850 7150 5850
Connection ~ 6750 6050
Wire Wire Line
6750 6050 7150 6050
Connection ~ 7150 5850
Wire Wire Line
7150 5850 7550 5850
Connection ~ 7150 6050
Wire Wire Line
7150 6050 7550 6050
Connection ~ 7550 5850
Wire Wire Line
7550 5850 7950 5850
Connection ~ 7550 6050
Wire Wire Line
7550 6050 7950 6050
$Comp
L Device:C_Small C14
U 1 1 5EDC21D7
P 7950 5950
F 0 "C14" H 8042 5996 50 0000 L CNN
F 1 "2u2" H 8042 5905 50 0000 L CNN
F 2 "stdpads:C_0603" 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 ~ 7950 6050
Wire Wire Line
6350 5850 6000 5850
Connection ~ 6350 5850
Connection ~ 6000 5850
Wire Wire Line
6000 6050 6350 6050
Connection ~ 6000 6050
Connection ~ 6350 6050
$Comp
L Mechanical:MountingHole_Pad H3
U 1 1 5EDC8F09
P 8350 1500
F 0 "H3" H 8450 1503 50 0000 L CNN
F 1 " " H 8450 1458 50 0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 8350 1500 50 0001 C CNN
F 3 "~" H 8350 1500 50 0001 C CNN
1 8350 1500
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole_Pad H4
U 1 1 5EDC8F0F
P 8650 1500
F 0 "H4" H 8750 1503 50 0000 L CNN
F 1 " " H 8750 1458 50 0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 8650 1500 50 0001 C CNN
F 3 "~" H 8650 1500 50 0001 C CNN
1 8650 1500
1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0145
U 1 1 5EDC9F0C
P 8650 1600
F 0 "#PWR0145" H 8650 1350 50 0001 C CNN
F 1 "GND" H 8650 1450 50 0000 C CNN
F 2 "" H 8650 1600 50 0001 C CNN
F 3 "" H 8650 1600 50 0001 C CNN
1 8650 1600
-1 0 0 -1
$EndComp
$Comp
L Mechanical:Fiducial FID1
U 1 1 5EDCC581
P 7750 1800
F 0 "FID1" H 7835 1846 50 0000 L CNN
F 1 "Fiducial" H 7835 1755 50 0000 L CNN
F 2 "stdpads:Fiducial" H 7750 1800 50 0001 C CNN
F 3 "~" H 7750 1800 50 0001 C CNN
1 7750 1800
1 0 0 -1
$EndComp
$Comp
L Mechanical:Fiducial FID2
U 1 1 5EDCCA31
P 8250 1800
F 0 "FID2" H 8335 1846 50 0000 L CNN
F 1 "Fiducial" H 8335 1755 50 0000 L CNN
F 2 "stdpads:Fiducial" H 8250 1800 50 0001 C CNN
F 3 "~" H 8250 1800 50 0001 C CNN
1 8250 1800
1 0 0 -1
$EndComp
$Comp
L Mechanical:Fiducial FID3
U 1 1 5EDCCCF0
P 7750 2000
F 0 "FID3" H 7835 2046 50 0000 L CNN
F 1 "Fiducial" H 7835 1955 50 0000 L CNN
F 2 "stdpads:Fiducial" H 7750 2000 50 0001 C CNN
F 3 "~" H 7750 2000 50 0001 C CNN
1 7750 2000
1 0 0 -1
$EndComp
$Comp
L Mechanical:Fiducial FID4
U 1 1 5EDCCFC0
P 8250 2000
F 0 "FID4" H 8335 2046 50 0000 L CNN
F 1 "Fiducial" H 8335 1955 50 0000 L CNN
F 2 "stdpads:Fiducial" H 8250 2000 50 0001 C CNN
F 3 "~" H 8250 2000 50 0001 C CNN
1 8250 2000
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole_Pad H2
U 1 1 5EE01FE6
P 8050 1500
F 0 "H2" H 8150 1503 50 0000 L CNN
F 1 " " H 8150 1458 50 0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 8050 1500 50 0001 C CNN
F 3 "~" H 8050 1500 50 0001 C CNN
1 8050 1500
1 0 0 -1
$EndComp
$Comp
L Mechanical:MountingHole_Pad H1
U 1 1 5EE01FE0
P 7750 1500
F 0 "H1" H 7850 1503 50 0000 L CNN
F 1 " " H 7850 1458 50 0001 L CNN
F 2 "stdpads:PasteHole_1.1mm_PTH" H 7750 1500 50 0001 C CNN
F 3 "~" H 7750 1500 50 0001 C CNN
1 7750 1500
1 0 0 -1
$EndComp
Wire Wire Line
7750 1600 8050 1600
Connection ~ 8050 1600
Wire Wire Line
8050 1600 8350 1600
Connection ~ 8350 1600
Wire Wire Line
8350 1600 8650 1600
Connection ~ 8650 1600
$Comp
L power:GND #PWR0149
U 1 1 5EC0D3D0
P 3800 4750
F 0 "#PWR0149" H 3800 4500 50 0001 C CNN
F 1 "GND" H 3800 4600 50 0000 C CNN
F 2 "" H 3800 4750 50 0001 C CNN
F 3 "" H 3800 4750 50 0001 C CNN
1 3800 4750
-1 0 0 -1
$EndComp
Wire Wire Line
3800 4750 4000 4750
$Comp
L power:GND #PWR0150
U 1 1 5EC0F52D
P 3800 3650
F 0 "#PWR0150" H 3800 3400 50 0001 C CNN
F 1 "GND" H 3800 3500 50 0000 C CNN
F 2 "" H 3800 3650 50 0001 C CNN
F 3 "" H 3800 3650 50 0001 C CNN
1 3800 3650
-1 0 0 -1
$EndComp
Wire Wire Line
4000 3650 3800 3650
Wire Wire Line
3800 3650 3800 3550
Wire Wire Line
3800 3050 4000 3050
Connection ~ 3800 3650
Wire Wire Line
4000 3250 3800 3250
Connection ~ 3800 3250
Wire Wire Line
3800 3250 3800 3050
Wire Wire Line
4000 3450 3800 3450
Connection ~ 3800 3450
Wire Wire Line
3800 3450 3800 3250
Wire Wire Line
3800 3550 4000 3550
Connection ~ 3800 3550
Wire Wire Line
3800 3550 3800 3450
NoConn ~ 4800 2950
NoConn ~ 4800 3150
NoConn ~ 4800 3350
NoConn ~ 4800 3450
NoConn ~ 4800 3550
NoConn ~ 4800 4650
Wire Wire Line
2500 2850 2600 2850
Wire Wire Line
2500 2650 2500 2850
Wire Wire Line
2400 2650 2500 2650
$Comp
L power:GND #PWR0122
U 1 1 5EC6163B
P 2400 2650
F 0 "#PWR0122" H 2400 2400 50 0001 C CNN
F 1 "GND" H 2400 2500 50 0000 C CNN
F 2 "" H 2400 2650 50 0001 C CNN
F 3 "" H 2400 2650 50 0001 C CNN
1 2400 2650
1 0 0 -1
$EndComp
Wire Wire Line
2500 1550 2600 1550
Wire Wire Line
2500 1350 2500 1550
$Comp
L power:GND #PWR0121
U 1 1 5EC60103
P 2400 1350
F 0 "#PWR0121" H 2400 1100 50 0001 C CNN
F 1 "GND" H 2400 1200 50 0000 C CNN
F 2 "" H 2400 1350 50 0001 C CNN
F 3 "" H 2400 1350 50 0001 C CNN
1 2400 1350
1 0 0 -1
$EndComp
Wire Wire Line
2400 1350 2500 1350
Wire Wire Line
3900 1550 4000 1550
Wire Wire Line
3900 1350 3900 1550
Wire Wire Line
3800 1350 3900 1350
$Comp
L power:GND #PWR0130
U 1 1 5EC893B0
P 3800 1350
F 0 "#PWR0130" H 3800 1100 50 0001 C CNN
F 1 "GND" H 3800 1200 50 0000 C CNN
F 2 "" H 3800 1350 50 0001 C CNN
F 3 "" H 3800 1350 50 0001 C CNN
1 3800 1350
1 0 0 -1
$EndComp
Wire Wire Line
3900 3950 3900 4150
Wire Wire Line
3800 3950 3900 3950
$Comp
L power:GND #PWR0132
U 1 1 5EC893C2
P 3800 3950
F 0 "#PWR0132" H 3800 3700 50 0001 C CNN
F 1 "GND" H 3800 3800 50 0000 C CNN
F 2 "" H 3800 3950 50 0001 C CNN
F 3 "" H 3800 3950 50 0001 C CNN
1 3800 3950
1 0 0 -1
$EndComp
$Comp
L power:+3V3 #PWR0127
U 1 1 5EC8935B
P 4000 4050
F 0 "#PWR0127" H 4000 3900 50 0001 C CNN
F 1 "+3V3" H 4000 4200 50 0000 C CNN
F 2 "" H 4000 4050 50 0001 C CNN
F 3 "" H 4000 4050 50 0001 C CNN
1 4000 4050
-1 0 0 -1
$EndComp
$Comp
L GW_Logic:74245 U9
U 1 1 5EC8934F
P 4400 4500
F 0 "U9" H 4400 5100 50 0000 C CNN
F 1 "74AHC245" H 4400 3900 50 0000 C CNN
F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 3850 50 0001 C TNN
F 3 "" H 4400 4600 60 0001 C CNN
1 4400 4500
-1 0 0 -1
$EndComp
Wire Wire Line
3900 2650 3900 2850
Wire Wire Line
3800 2650 3900 2650
$Comp
L power:GND #PWR0131
U 1 1 5EC5BB53
P 3800 2650
F 0 "#PWR0131" H 3800 2400 50 0001 C CNN
F 1 "GND" H 3800 2500 50 0000 C CNN
F 2 "" H 3800 2650 50 0001 C CNN
F 3 "" H 3800 2650 50 0001 C CNN
1 3800 2650
1 0 0 -1
$EndComp
Wire Wire Line
3900 2850 4000 2850
Text Label 5850 1750 2 50 ~ 0
RA23
$Comp
L Device:R_Small R1
U 1 1 5EC0CD79
P 5950 1650
F 0 "R1" H 6009 1696 50 0000 L CNN
F 1 "3k3" H 6009 1605 50 0000 L CNN
F 2 "stdpads:R_0805" H 5950 1650 50 0001 C CNN
F 3 "~" H 5950 1650 50 0001 C CNN
1 5950 1650
1 0 0 -1
$EndComp
Wire Wire Line
5850 1750 5950 1750
$Comp
L power:+3V3 #PWR0151
U 1 1 5EC0FA8C
P 5950 1550
F 0 "#PWR0151" H 5950 1400 50 0001 C CNN
F 1 "+3V3" H 5950 1700 50 0000 C CNN
F 2 "" H 5950 1550 50 0001 C CNN
F 3 "" H 5950 1550 50 0001 C CNN
1 5950 1550
-1 0 0 -1
$EndComp
$Comp
L Switch:SW_DIP_x01 SW1
U 1 1 5EC10C6B
P 6350 1750
F 0 "SW1" H 6350 1900 50 0000 C CNN
F 1 "ROM Select" H 6350 1600 50 0000 C CNN
F 2 "Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W8.61mm_P2.54mm_LowProfile" H 6350 1750 50 0001 C CNN
F 3 "~" H 6350 1750 50 0001 C CNN
1 6350 1750
1 0 0 -1
$EndComp
Wire Wire Line
5950 1750 6050 1750
Connection ~ 5950 1750
$Comp
L power:GND #PWR0153
U 1 1 A08D2337
P 8350 6050
F 0 "#PWR0153" H 8350 5800 50 0001 C CNN
F 1 "GND" H 8350 5900 50 0000 C CNN
F 2 "" H 8350 6050 50 0001 C CNN
F 3 "" H 8350 6050 50 0001 C CNN
1 8350 6050
1 0 0 -1
$EndComp
Wire Wire Line
7950 5850 8350 5850
Wire Wire Line
7950 6050 8350 6050
$Comp
L Device:C_Small C15
U 1 1 A08D233F
P 8350 5950
F 0 "C15" H 8442 5996 50 0000 L CNN
F 1 "2u2" H 8442 5905 50 0000 L CNN
F 2 "stdpads:C_0603" H 8350 5950 50 0001 C CNN
F 3 "~" H 8350 5950 50 0001 C CNN
1 8350 5950
1 0 0 -1
$EndComp
Connection ~ 8350 6050
$Comp
L GW_Logic:741G02GW U12
U 1 1 5EF4BDF5
P 5700 3250
F 0 "U12" H 5700 3500 50 0000 C CNN
F 1 "74LVC1G02GW" H 5700 3000 50 0000 C CNN
F 2 "stdpads:SOT-353" H 5700 2950 50 0001 C TNN
F 3 "" H 5700 3050 60 0001 C CNN
1 5700 3250
1 0 0 -1
$EndComp
Text Label 5300 3150 2 50 ~ 0
~CS~
$Comp
L power:+3V3 #PWR0154
U 1 1 5EF4CD76
P 6100 3150
F 0 "#PWR0154" H 6100 3000 50 0001 C CNN
F 1 "+3V3" H 6100 3300 50 0000 C CNN
F 2 "" H 6100 3150 50 0001 C CNN
F 3 "" H 6100 3150 50 0001 C CNN
1 6100 3150
-1 0 0 -1
$EndComp
$Comp
L power:GND #PWR0155
U 1 1 5EF4D490
P 5300 3350
F 0 "#PWR0155" H 5300 3100 50 0001 C CNN
F 1 "GND" H 5300 3200 50 0000 C CNN
F 2 "" H 5300 3350 50 0001 C CNN
F 3 "" H 5300 3350 50 0001 C CNN
1 5300 3350
-1 0 0 -1
$EndComp
Text Label 6500 3350 0 50 ~ 0
DdirR
Text Label 5300 3250 2 50 ~ 0
~OE~
$Comp
L Device:R_Small R2
U 1 1 5EFDEB5D
P 6400 3350
F 0 "R2" V 6350 3350 50 0000 C BNN
F 1 "100" V 6450 3350 50 0000 C TNN
F 2 "stdpads:R_0805" H 6400 3350 50 0001 C CNN
F 3 "~" H 6400 3350 50 0001 C CNN
1 6400 3350
0 1 1 0
$EndComp
Text Label 6100 3350 0 50 ~ 0
Ddir
Wire Wire Line
6100 3350 6300 3350
Wire Wire Line
6650 1750 6750 1750
Connection ~ 6750 1750
$EndSCHEMATC
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