mirror of
https://github.com/garrettsworkshop/MacIIROMSIMM.git
synced 2024-12-09 12:50:12 +00:00
Eliminated one 74AHC245PW
This commit is contained in:
Zane Kaminski
parent
788f001719
commit
e56c95dbcc
13606
ROMSIMM.kicad_pcb
13606
ROMSIMM.kicad_pcb
File diff suppressed because it is too large
Load Diff
192
ROMSIMM.sch
192
ROMSIMM.sch
@ -866,29 +866,6 @@ F 3 "" H 4000 5350 50 0001 C CNN
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-1 0 0 -1
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$EndComp
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$Comp
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L GW_Logic:74245 U8
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U 1 1 5EC89362
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P 4400 3200
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F 0 "U8" H 4400 3800 50 0000 C CNN
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F 1 "74AHC245" H 4400 2600 50 0000 C CNN
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F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 2550 50 0001 C TNN
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F 3 "" H 4400 3300 60 0001 C CNN
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F 4 "C132987" H 4400 3200 50 0001 C CNN "LCSC Part"
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1 4400 3200
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-1 0 0 -1
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$EndComp
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$Comp
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L power:+3V3 #PWR0128
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U 1 1 5EC8936E
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P 4000 2750
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F 0 "#PWR0128" H 4000 2600 50 0001 C CNN
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F 1 "+3V3" H 4000 2900 50 0000 C CNN
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F 2 "" H 4000 2750 50 0001 C CNN
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F 3 "" H 4000 2750 50 0001 C CNN
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1 4000 2750
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-1 0 0 -1
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$EndComp
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$Comp
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L GW_Logic:74245 U7
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U 1 1 5EC89375
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P 4400 1900
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@ -944,20 +921,16 @@ $EndComp
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Wire Wire Line
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4900 1250 4800 1250
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Text Label 4000 2350 2 50 ~ 0
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A0
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Text Label 4000 2250 2 50 ~ 0
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A1
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Text Label 4000 2150 2 50 ~ 0
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A2
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Text Label 4000 2050 2 50 ~ 0
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Text Label 4000 2250 2 50 ~ 0
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A3
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Text Label 4000 1950 2 50 ~ 0
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Text Label 4000 2150 2 50 ~ 0
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A4
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Text Label 4000 1850 2 50 ~ 0
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Text Label 4000 2050 2 50 ~ 0
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A5
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Text Label 4000 1750 2 50 ~ 0
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Text Label 4000 1950 2 50 ~ 0
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A6
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Text Label 4000 1650 2 50 ~ 0
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Text Label 4000 1850 2 50 ~ 0
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A7
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Text Label 4000 4650 2 50 ~ 0
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A10
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@ -985,25 +958,21 @@ Text Label 4000 5650 2 50 ~ 0
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A21
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Text Label 4000 5550 2 50 ~ 0
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A22
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Text Label 4000 4950 2 50 ~ 0
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A8
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Text Label 4000 4850 2 50 ~ 0
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A8
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Text Label 4000 4750 2 50 ~ 0
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A9
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Text Label 4800 2250 0 50 ~ 0
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RA0
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Text Label 4800 2150 0 50 ~ 0
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RA1
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Text Label 4800 2050 0 50 ~ 0
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RA2
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Text Label 4800 1950 0 50 ~ 0
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Text Label 4800 2150 0 50 ~ 0
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RA3
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Text Label 4800 1850 0 50 ~ 0
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Text Label 4800 2050 0 50 ~ 0
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RA4
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Text Label 4800 1750 0 50 ~ 0
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Text Label 4800 1950 0 50 ~ 0
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RA5
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Text Label 4800 1650 0 50 ~ 0
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Text Label 4800 1850 0 50 ~ 0
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RA6
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Text Label 4800 1550 0 50 ~ 0
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Text Label 4800 1750 0 50 ~ 0
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RA7
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$Comp
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L power:GND #PWR0135
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@ -1017,17 +986,6 @@ F 3 "" H 4800 2350 50 0001 C CNN
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-1 0 0 -1
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$EndComp
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$Comp
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L power:GND #PWR0136
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U 1 1 5EC98E92
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P 4800 3650
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F 0 "#PWR0136" H 4800 3400 50 0001 C CNN
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F 1 "GND" H 4800 3500 50 0000 C CNN
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F 2 "" H 4800 3650 50 0001 C CNN
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F 3 "" H 4800 3650 50 0001 C CNN
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1 4800 3650
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-1 0 0 -1
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$EndComp
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$Comp
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L power:GND #PWR0137
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U 1 1 5EC99C6D
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P 4800 4950
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@ -1038,34 +996,17 @@ F 3 "" H 4800 4950 50 0001 C CNN
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1 4800 4950
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-1 0 0 -1
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$EndComp
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Text Label 4800 3250 0 50 ~ 0
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Text Label 4800 1650 0 50 ~ 0
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R~CS~
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Text Label 4800 3050 0 50 ~ 0
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Text Label 4800 1550 0 50 ~ 0
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R~OE~
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Text Label 4800 2850 0 50 ~ 0
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R~WE~
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Text Label 4800 4850 0 50 ~ 0
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RA8
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R~WE~
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Text Label 4800 4750 0 50 ~ 0
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RA9
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RA8
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Wire Wire Line
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4800 1450 4800 1250
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$Comp
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L power:GND #PWR0138
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U 1 1 5EC9E4BB
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P 4900 2550
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F 0 "#PWR0138" H 4900 2300 50 0001 C CNN
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F 1 "GND" H 4900 2400 50 0000 C CNN
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F 2 "" H 4900 2550 50 0001 C CNN
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F 3 "" H 4900 2550 50 0001 C CNN
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1 4900 2550
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-1 0 0 -1
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$EndComp
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Wire Wire Line
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4900 2550 4800 2550
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Wire Wire Line
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4800 2750 4800 2550
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$Comp
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L power:GND #PWR0139
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U 1 1 5EC9F7AD
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P 4900 3850
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@ -1276,11 +1217,11 @@ Text Label 4800 5750 0 50 ~ 0
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RA19
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Text Label 4800 5850 0 50 ~ 0
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RA18
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Text Label 4000 2950 2 50 ~ 0
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Text Label 4000 4950 2 50 ~ 0
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~WE~
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Text Label 4000 3150 2 50 ~ 0
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Text Label 4000 1650 2 50 ~ 0
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~OE~
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Text Label 4000 3350 2 50 ~ 0
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Text Label 4000 1750 2 50 ~ 0
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~CS~
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$Comp
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L Device:C_Small C11
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@ -1496,58 +1437,6 @@ Connection ~ 8350 1600
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Wire Wire Line
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8350 1600 8650 1600
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Connection ~ 8650 1600
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$Comp
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L power:GND #PWR0149
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U 1 1 5EC0D3D0
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P 3800 4750
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F 0 "#PWR0149" H 3800 4500 50 0001 C CNN
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F 1 "GND" H 3800 4600 50 0000 C CNN
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F 2 "" H 3800 4750 50 0001 C CNN
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F 3 "" H 3800 4750 50 0001 C CNN
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1 3800 4750
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-1 0 0 -1
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$EndComp
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Wire Wire Line
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3800 4750 4000 4750
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$Comp
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L power:GND #PWR0150
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U 1 1 5EC0F52D
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P 3800 3650
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F 0 "#PWR0150" H 3800 3400 50 0001 C CNN
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F 1 "GND" H 3800 3500 50 0000 C CNN
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F 2 "" H 3800 3650 50 0001 C CNN
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F 3 "" H 3800 3650 50 0001 C CNN
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1 3800 3650
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-1 0 0 -1
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$EndComp
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Wire Wire Line
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4000 3650 3800 3650
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Wire Wire Line
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3800 3650 3800 3550
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Wire Wire Line
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3800 3050 4000 3050
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Connection ~ 3800 3650
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Wire Wire Line
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4000 3250 3800 3250
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Connection ~ 3800 3250
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Wire Wire Line
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3800 3250 3800 3050
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Wire Wire Line
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4000 3450 3800 3450
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Connection ~ 3800 3450
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Wire Wire Line
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3800 3450 3800 3250
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Wire Wire Line
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3800 3550 4000 3550
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Connection ~ 3800 3550
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Wire Wire Line
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3800 3550 3800 3450
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NoConn ~ 4800 2950
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NoConn ~ 4800 3150
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NoConn ~ 4800 3350
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NoConn ~ 4800 3450
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NoConn ~ 4800 3550
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NoConn ~ 4800 4650
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Wire Wire Line
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2500 2850 2600 2850
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Wire Wire Line
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@ -1626,35 +1515,6 @@ F 3 "" H 4000 4050 50 0001 C CNN
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-1 0 0 -1
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$EndComp
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$Comp
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L GW_Logic:74245 U9
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U 1 1 5EC8934F
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P 4400 4500
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F 0 "U9" H 4400 5100 50 0000 C CNN
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F 1 "74AHC245" H 4400 3900 50 0000 C CNN
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F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 3850 50 0001 C TNN
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F 3 "" H 4400 4600 60 0001 C CNN
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F 4 "C132987" H 4400 4500 50 0001 C CNN "LCSC Part"
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1 4400 4500
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-1 0 0 -1
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$EndComp
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Wire Wire Line
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3900 2650 3900 2850
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Wire Wire Line
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3800 2650 3900 2650
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$Comp
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L power:GND #PWR0131
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U 1 1 5EC5BB53
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P 3800 2650
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F 0 "#PWR0131" H 3800 2400 50 0001 C CNN
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F 1 "GND" H 3800 2500 50 0000 C CNN
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F 2 "" H 3800 2650 50 0001 C CNN
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F 3 "" H 3800 2650 50 0001 C CNN
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1 3800 2650
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1 0 0 -1
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$EndComp
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Wire Wire Line
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3900 2850 4000 2850
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$Comp
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L power:GND #PWR0153
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U 1 1 A08D2337
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P 8350 6050
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@ -1842,4 +1702,18 @@ F 4 "C319052" H 5700 2550 50 0001 C CNN "LCSC Part"
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1 5700 2550
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1 0 0 -1
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$EndComp
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$Comp
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L GW_Logic:74245 U9
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U 1 1 5EC8934F
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P 4400 4500
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F 0 "U9" H 4400 5100 50 0000 C CNN
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F 1 "74AHC245" H 4400 3900 50 0000 C CNN
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F 2 "stdpads:TSSOP-20_4.4x6.5mm_P0.65mm" H 4400 3850 50 0001 C TNN
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F 3 "" H 4400 4600 60 0001 C CNN
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F 4 "C132987" H 4400 4500 50 0001 C CNN "LCSC Part"
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1 4400 4500
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-1 0 0 -1
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$EndComp
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Text Label 4800 4650 0 50 ~ 0
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RA9
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$EndSCHEMATC
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