$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
-Title ""
-Date ""
+Title "Z80 computer 2"
+Date "2020-04-29"
Rev ""
Comp ""
-Comment1 ""
-Comment2 ""
+Comment1 "License: Creative Commons Attribution Share-Alike (CC BY-SA)"
+Comment2 "Copyright (C) 2020 John Tsiombikas <nuclear@member.fsf.org>"
Comment3 ""
Comment4 ""
$EndDescr
$Comp
-L CPU:Z80CPU U1
+L CPU:Z80CPU U3
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-P 1900 4050
-F 0 "U1" H 2100 2650 50 0000 C CNN
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-F 2 "" H 1900 4450 50 0001 C CNN
-F 3 "www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080" H 1900 4450 50 0001 C CNN
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+F 3 "www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080" H 2000 4450 50 0001 C CNN
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1 0 0 -1
$EndComp
$Comp
-L Memory_EEPROM:28C256 U3
+L Memory_EEPROM:28C256 U6
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-P 3750 4400
-F 0 "U3" H 3900 3350 50 0000 C CNN
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-F 2 "" H 3750 4400 50 0001 C CNN
-F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0006.pdf" H 3750 4400 50 0001 C CNN
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+F 3 "http://ww1.microchip.com/downloads/en/DeviceDoc/doc0006.pdf" H 3850 4400 50 0001 C CNN
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1 0 0 -1
$EndComp
$Comp
-L power:GND #PWR04
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$EndComp
$Comp
-L power:GND #PWR011
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$EndComp
$Comp
-L power:VCC #PWR03
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$EndComp
$Comp
-L power:VCC #PWR010
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$EndComp
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$Comp
-L power:VCC #PWR07
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U 1 1 5EA9AA1C
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1 0 0 -1
$EndComp
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$Comp
-L z80comp2:mc68681 U6
+L z80comp2:mc68681 U8
U 1 1 5EAC419A
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$EndComp
$Comp
-L z80comp2:sram_um61512ak U4
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U 1 1 5EAC72ED
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$EndComp
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+Text Label 4850 3300 0 50 ~ 0
A0
-Text Label 4750 3400 0 50 ~ 0
+Text Label 4850 3400 0 50 ~ 0
A1
-Text Label 4750 3500 0 50 ~ 0
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A2
-Text Label 4750 3600 0 50 ~ 0
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A3
-Text Label 4750 3700 0 50 ~ 0
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A4
-Text Label 4750 3800 0 50 ~ 0
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A5
-Text Label 4750 3900 0 50 ~ 0
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A6
-Text Label 4750 4000 0 50 ~ 0
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A7
-Text Label 4750 4100 0 50 ~ 0
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A8
-Text Label 4750 4200 0 50 ~ 0
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A9
-Text Label 4750 4300 0 50 ~ 0
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A10
-Text Label 4750 4400 0 50 ~ 0
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A11
-Text Label 4750 4500 0 50 ~ 0
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A12
-Text Label 4750 4600 0 50 ~ 0
+Text Label 4850 4600 0 50 ~ 0
A13
-Text Label 4750 4700 0 50 ~ 0
+Text Label 4850 4700 0 50 ~ 0
A14
Entry Wire Line
- 4600 3200 4700 3300
+ 4700 3200 4800 3300
Entry Wire Line
- 4600 3300 4700 3400
+ 4700 3300 4800 3400
Entry Wire Line
- 4600 3400 4700 3500
+ 4700 3400 4800 3500
Entry Wire Line
- 4600 3500 4700 3600
+ 4700 3500 4800 3600
Entry Wire Line
- 4600 3600 4700 3700
+ 4700 3600 4800 3700
Entry Wire Line
- 4600 3700 4700 3800
+ 4700 3700 4800 3800
Entry Wire Line
- 4600 3800 4700 3900
+ 4700 3800 4800 3900
Entry Wire Line
- 4600 3900 4700 4000
+ 4700 3900 4800 4000
Entry Wire Line
- 4600 4000 4700 4100
+ 4700 4000 4800 4100
Entry Wire Line
- 4600 4100 4700 4200
+ 4700 4100 4800 4200
Entry Wire Line
- 4600 4200 4700 4300
+ 4700 4200 4800 4300
Entry Wire Line
- 4600 4300 4700 4400
+ 4700 4300 4800 4400
Entry Wire Line
- 4600 4400 4700 4500
+ 4700 4400 4800 4500
Entry Wire Line
- 4600 4500 4700 4600
+ 4700 4500 4800 4600
Entry Wire Line
- 4600 4600 4700 4700
+ 4700 4600 4800 4700
Wire Wire Line
- 4900 5050 4800 5050
-Text Label 4800 5050 0 50 ~ 0
+ 5000 5050 4900 5050
+Text Label 4900 5050 0 50 ~ 0
~RD
Wire Wire Line
- 4900 5150 4800 5150
-Text Label 4800 5150 0 50 ~ 0
+ 5000 5150 4900 5150
+Text Label 4900 5150 0 50 ~ 0
~WR
Wire Wire Line
- 4900 5250 4650 5250
-Text Label 4650 5250 0 50 ~ 0
+ 5000 5250 4750 5250
+Text Label 4750 5250 0 50 ~ 0
~RAMEN
$Comp
-L power:VCC #PWR013
+L power:VCC #PWR019
U 1 1 5EB3084D
-P 5600 3050
-F 0 "#PWR013" H 5600 2900 50 0001 C CNN
-F 1 "VCC" H 5617 3223 50 0000 C CNN
-F 2 "" H 5600 3050 50 0001 C CNN
-F 3 "" H 5600 3050 50 0001 C CNN
- 1 5600 3050
+P 5550 3050
+F 0 "#PWR019" H 5550 2900 50 0001 C CNN
+F 1 "VCC" H 5567 3223 50 0000 C CNN
+F 2 "" H 5550 3050 50 0001 C CNN
+F 3 "" H 5550 3050 50 0001 C CNN
+ 1 5550 3050
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR012
+L power:VCC #PWR017
U 1 1 5EB32548
-P 4550 5300
-F 0 "#PWR012" H 4550 5150 50 0001 C CNN
-F 1 "VCC" H 4567 5473 50 0000 C CNN
-F 2 "" H 4550 5300 50 0001 C CNN
-F 3 "" H 4550 5300 50 0001 C CNN
- 1 4550 5300
+P 4650 5300
+F 0 "#PWR017" H 4650 5150 50 0001 C CNN
+F 1 "VCC" H 4667 5473 50 0000 C CNN
+F 2 "" H 4650 5300 50 0001 C CNN
+F 3 "" H 4650 5300 50 0001 C CNN
+ 1 4650 5300
1 0 0 -1
$EndComp
Wire Wire Line
- 4550 5300 4550 5350
+ 4650 5300 4650 5350
Wire Wire Line
- 4550 5350 4900 5350
+ 4650 5350 5000 5350
$Comp
-L power:GND #PWR014
+L power:GND #PWR020
U 1 1 5EB37534
-P 5600 5600
-F 0 "#PWR014" H 5600 5350 50 0001 C CNN
-F 1 "GND" H 5605 5427 50 0000 C CNN
-F 2 "" H 5600 5600 50 0001 C CNN
-F 3 "" H 5600 5600 50 0001 C CNN
- 1 5600 5600
+P 5550 5600
+F 0 "#PWR020" H 5550 5350 50 0001 C CNN
+F 1 "GND" H 5555 5427 50 0000 C CNN
+F 2 "" H 5550 5600 50 0001 C CNN
+F 3 "" H 5550 5600 50 0001 C CNN
+ 1 5550 5600
1 0 0 -1
$EndComp
$Comp
-L power:GND #PWR016
+L power:GND #PWR021
U 1 1 5EB3BBF0
-P 7500 5600
-F 0 "#PWR016" H 7500 5350 50 0001 C CNN
-F 1 "GND" H 7505 5427 50 0000 C CNN
-F 2 "" H 7500 5600 50 0001 C CNN
-F 3 "" H 7500 5600 50 0001 C CNN
- 1 7500 5600
+P 7350 5600
+F 0 "#PWR021" H 7350 5350 50 0001 C CNN
+F 1 "GND" H 7355 5427 50 0000 C CNN
+F 2 "" H 7350 5600 50 0001 C CNN
+F 3 "" H 7350 5600 50 0001 C CNN
+ 1 7350 5600
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR015
+L power:VCC #PWR022
U 1 1 5EB3BF7A
-P 7500 2400
-F 0 "#PWR015" H 7500 2250 50 0001 C CNN
-F 1 "VCC" H 7517 2573 50 0000 C CNN
-F 2 "" H 7500 2400 50 0001 C CNN
-F 3 "" H 7500 2400 50 0001 C CNN
- 1 7500 2400
+P 7350 2400
+F 0 "#PWR022" H 7350 2250 50 0001 C CNN
+F 1 "VCC" H 7367 2573 50 0000 C CNN
+F 2 "" H 7350 2400 50 0001 C CNN
+F 3 "" H 7350 2400 50 0001 C CNN
+ 1 7350 2400
1 0 0 -1
$EndComp
Wire Wire Line
- 6950 3000 6600 3000
+ 6800 3000 6450 3000
Wire Wire Line
- 6950 3100 6600 3100
+ 6800 3100 6450 3100
Wire Wire Line
- 6950 3200 6600 3200
+ 6800 3200 6450 3200
Wire Wire Line
- 6950 3300 6600 3300
-Text Label 6800 3000 0 50 ~ 0
+ 6800 3300 6450 3300
+Text Label 6650 3000 0 50 ~ 0
A0
-Text Label 6800 3100 0 50 ~ 0
+Text Label 6650 3100 0 50 ~ 0
A1
-Text Label 6800 3200 0 50 ~ 0
+Text Label 6650 3200 0 50 ~ 0
A2
-Text Label 6800 3300 0 50 ~ 0
+Text Label 6650 3300 0 50 ~ 0
A3
Wire Wire Line
- 6950 4500 6650 4500
-Text Label 6650 4500 0 50 ~ 0
+ 6800 4500 6500 4500
+Text Label 6500 4500 0 50 ~ 0
~UARTEN
NoConn ~ 11900 2450
$Comp
-L z80comp2:z80glue U2
+L z80comp2:z80glue U5
U 1 1 5EB69DED
-P 3750 1550
-F 0 "U2" H 3900 2100 50 0000 C CNN
-F 1 "z80glue" H 3500 1000 50 0000 C CNN
-F 2 "" H 3700 1650 50 0001 C CNN
-F 3 "" H 3700 1650 50 0001 C CNN
- 1 3750 1550
+P 3850 1550
+F 0 "U5" H 4000 2100 50 0000 C CNN
+F 1 "z80glue" H 3600 900 50 0000 C CNN
+F 2 "" H 3800 1650 50 0001 C CNN
+F 3 "" H 3800 1650 50 0001 C CNN
+ 1 3850 1550
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR08
+L power:VCC #PWR013
U 1 1 5EB7EC44
-P 3750 850
-F 0 "#PWR08" H 3750 700 50 0001 C CNN
-F 1 "VCC" H 3767 1023 50 0000 C CNN
-F 2 "" H 3750 850 50 0001 C CNN
-F 3 "" H 3750 850 50 0001 C CNN
- 1 3750 850
+P 3850 750
+F 0 "#PWR013" H 3850 600 50 0001 C CNN
+F 1 "VCC" H 3867 923 50 0000 C CNN
+F 2 "" H 3850 750 50 0001 C CNN
+F 3 "" H 3850 750 50 0001 C CNN
+ 1 3850 750
1 0 0 -1
$EndComp
$Comp
-L power:GND #PWR09
+L power:GND #PWR014
U 1 1 5EB872CE
-P 3750 2250
-F 0 "#PWR09" H 3750 2000 50 0001 C CNN
-F 1 "GND" H 3755 2077 50 0000 C CNN
-F 2 "" H 3750 2250 50 0001 C CNN
-F 3 "" H 3750 2250 50 0001 C CNN
- 1 3750 2250
+P 3850 2350
+F 0 "#PWR014" H 3850 2100 50 0001 C CNN
+F 1 "GND" H 3855 2177 50 0000 C CNN
+F 2 "" H 3850 2350 50 0001 C CNN
+F 3 "" H 3850 2350 50 0001 C CNN
+ 1 3850 2350
1 0 0 -1
$EndComp
Wire Wire Line
- 3200 1100 3000 1100
+ 3300 1000 3100 1000
Wire Wire Line
- 3200 1200 3000 1200
+ 3300 1100 3100 1100
Wire Wire Line
- 3200 1300 3000 1300
+ 3300 1200 3100 1200
Wire Wire Line
- 3200 1400 3000 1400
+ 3300 1300 3100 1300
Wire Wire Line
- 3200 1500 3000 1500
+ 3300 1400 3100 1400
Wire Wire Line
- 3200 1800 3000 1800
+ 3300 1700 3100 1700
Wire Wire Line
- 3200 1900 3000 1900
-Text Label 3050 1100 0 50 ~ 0
+ 3300 1800 3100 1800
+Text Label 3150 1000 0 50 ~ 0
A4
-Text Label 3050 1200 0 50 ~ 0
+Text Label 3150 1100 0 50 ~ 0
A5
-Text Label 3050 1300 0 50 ~ 0
+Text Label 3150 1200 0 50 ~ 0
A6
-Text Label 3050 1400 0 50 ~ 0
+Text Label 3150 1300 0 50 ~ 0
A7
-Text Label 3050 1500 0 50 ~ 0
+Text Label 3150 1400 0 50 ~ 0
A15
-Text Label 3000 1800 0 50 ~ 0
+Text Label 3100 1700 0 50 ~ 0
~MREQ
-Text Label 3000 1900 0 50 ~ 0
+Text Label 3100 1800 0 50 ~ 0
~IOREQ
Entry Wire Line
- 2900 1600 3000 1500
+ 3000 1500 3100 1400
Entry Wire Line
- 2900 1500 3000 1400
+ 3000 1400 3100 1300
Entry Wire Line
- 2900 1400 3000 1300
+ 3000 1300 3100 1200
Entry Wire Line
- 2900 1300 3000 1200
+ 3000 1200 3100 1100
Entry Wire Line
- 2900 1200 3000 1100
-Connection ~ 2900 2600
+ 3000 1100 3100 1000
Wire Wire Line
- 4300 1600 4600 1600
+ 4400 1500 4700 1500
Wire Wire Line
- 4300 1400 4600 1400
+ 4400 1300 4700 1300
Wire Wire Line
- 4300 1500 4600 1500
-Text Label 4300 1400 0 50 ~ 0
+ 4400 1400 4700 1400
+Text Label 6500 1300 0 50 ~ 0
~UARTEN
-Text Label 4300 1500 0 50 ~ 0
+Text Label 4400 1400 0 50 ~ 0
~RAMEN
-Text Label 4300 1600 0 50 ~ 0
+Text Label 4400 1500 0 50 ~ 0
~ROMEN
Wire Wire Line
- 6950 4400 6800 4400
-Text Label 6800 4400 0 50 ~ 0
+ 6800 4400 6650 4400
+Text Label 6650 4400 0 50 ~ 0
~WR
Entry Wire Line
- 6500 2900 6600 3000
+ 6350 2900 6450 3000
Entry Wire Line
- 6500 3000 6600 3100
+ 6350 3000 6450 3100
Entry Wire Line
- 6500 3100 6600 3200
+ 6350 3100 6450 3200
Entry Wire Line
- 6500 3200 6600 3300
-Wire Bus Line
- 4300 2600 4600 2600
-Connection ~ 4600 2600
+ 6350 3200 6450 3300
Entry Wire Line
- 6550 4300 6650 4200
+ 6400 4300 6500 4200
Entry Wire Line
- 6550 4200 6650 4100
+ 6400 4200 6500 4100
Entry Wire Line
- 6550 4100 6650 4000
+ 6400 4100 6500 4000
Entry Wire Line
- 6550 4000 6650 3900
+ 6400 4000 6500 3900
Entry Wire Line
- 6550 3900 6650 3800
+ 6400 3900 6500 3800
Entry Wire Line
- 6550 3800 6650 3700
+ 6400 3800 6500 3700
Entry Wire Line
- 6550 3700 6650 3600
+ 6400 3700 6500 3600
Entry Wire Line
- 6550 3600 6650 3500
-Wire Bus Line
- 4250 2600 4600 2600
-Wire Bus Line
- 4600 2600 6500 2600
+ 6400 3600 6500 3500
Wire Wire Line
- 6950 2700 6800 2700
-Text Label 6800 2700 0 50 ~ 0
+ 6800 2700 6650 2700
+Text Label 6650 2700 0 50 ~ 0
~RST
Wire Bus Line
- 6550 4400 6150 4400
+ 6400 4400 6100 4400
Wire Bus Line
- 6150 4400 6150 5850
+ 6100 4400 6100 5850
Wire Bus Line
- 6150 5850 4450 5850
-Connection ~ 4450 5850
+ 6100 5850 4550 5850
+Connection ~ 4550 5850
$Comp
L Device:Crystal_Small Y1
U 1 1 5ED63565
-P 6700 5150
-F 0 "Y1" V 6750 5100 50 0000 R CNN
-F 1 "3.6864MHz" V 6850 5450 50 0000 R CNN
-F 2 "" H 6700 5150 50 0001 C CNN
-F 3 "~" H 6700 5150 50 0001 C CNN
- 1 6700 5150
+P 6550 5150
+F 0 "Y1" V 6600 5100 50 0000 R CNN
+F 1 "3.6864MHz" V 6700 5450 50 0000 R CNN
+F 2 "" H 6550 5150 50 0001 C CNN
+F 3 "~" H 6550 5150 50 0001 C CNN
+ 1 6550 5150
0 -1 -1 0
$EndComp
Wire Wire Line
- 6700 5050 6950 5050
+ 6550 5050 6800 5050
$Comp
-L Device:C_Small C8
+L Device:C_Small C11
U 1 1 5ED7A206
-P 6700 5400
-F 0 "C8" H 6900 5400 50 0000 R CNN
-F 1 "5pF" H 6900 5500 50 0000 R CNN
-F 2 "" H 6700 5400 50 0001 C CNN
-F 3 "~" H 6700 5400 50 0001 C CNN
- 1 6700 5400
+P 6550 5400
+F 0 "C11" H 6750 5400 50 0000 R CNN
+F 1 "5pF" H 6750 5500 50 0000 R CNN
+F 2 "" H 6550 5400 50 0001 C CNN
+F 3 "~" H 6550 5400 50 0001 C CNN
+ 1 6550 5400
1 0 0 1
$EndComp
$Comp
-L Device:C_Small C7
+L Device:C_Small C10
U 1 1 5ED7B05B
-P 6500 5200
-F 0 "C7" H 6700 5200 50 0000 R CNN
-F 1 "15pF" H 6700 5300 50 0000 R CNN
-F 2 "" H 6500 5200 50 0001 C CNN
-F 3 "~" H 6500 5200 50 0001 C CNN
- 1 6500 5200
+P 6350 5200
+F 0 "C10" H 6550 5200 50 0000 R CNN
+F 1 "15pF" H 6550 5300 50 0000 R CNN
+F 2 "" H 6350 5200 50 0001 C CNN
+F 3 "~" H 6350 5200 50 0001 C CNN
+ 1 6350 5200
-1 0 0 1
$EndComp
Wire Wire Line
- 6500 5100 6500 5050
+ 6350 5100 6350 5050
Wire Wire Line
- 6500 5050 6700 5050
+ 6350 5050 6550 5050
Wire Wire Line
- 6700 5300 6700 5250
-Connection ~ 6700 5250
+ 6550 5300 6550 5250
+Connection ~ 6550 5250
Wire Wire Line
- 7500 5600 6700 5600
+ 7350 5600 6550 5600
Wire Wire Line
- 6700 5600 6700 5500
+ 6550 5600 6550 5500
Wire Wire Line
- 6700 5600 6500 5600
+ 6550 5600 6350 5600
Wire Wire Line
- 6500 5600 6500 5300
+ 6350 5600 6350 5300
$Comp
-L Interface_UART:MAX232 U7
+L Interface_UART:MAX232 U9
U 1 1 5EDB13AC
-P 9450 3900
-F 0 "U7" H 9650 2850 50 0000 C CNN
-F 1 "MAX232" H 9450 4150 50 0000 C CNN
-F 2 "" H 9500 2850 50 0001 L CNN
-F 3 "http://www.ti.com/lit/ds/symlink/max232.pdf" H 9450 4000 50 0001 C CNN
- 1 9450 3900
+P 9300 3900
+F 0 "U9" H 9500 2850 50 0000 C CNN
+F 1 "MAX232" H 9300 4150 50 0000 C CNN
+F 2 "" H 9350 2850 50 0001 L CNN
+F 3 "http://www.ti.com/lit/ds/symlink/max232.pdf" H 9300 4000 50 0001 C CNN
+ 1 9300 3900
1 0 0 -1
$EndComp
Wire Bus Line
- 4450 5850 4300 5850
+ 4550 5850 4400 5850
Wire Wire Line
- 8050 3500 8350 3500
-Text Label 8050 3500 0 50 ~ 0
+ 7900 3500 8200 3500
+Text Label 7900 3500 0 50 ~ 0
BANKSEL
-Text Label 8050 3400 0 50 ~ 0
+Text Label 7900 3400 0 50 ~ 0
~RTSA
-Text Label 8050 2700 0 50 ~ 0
+Text Label 7900 2700 0 50 ~ 0
~CTSA
-Text Label 8050 4300 0 50 ~ 0
+Text Label 7900 4300 0 50 ~ 0
TXA
-Text Label 8050 4400 0 50 ~ 0
+Text Label 7900 4400 0 50 ~ 0
RXA
Wire Wire Line
- 8500 3400 8500 4200
+ 8350 3400 8350 4200
Wire Wire Line
- 8500 4200 8650 4200
+ 8350 4200 8500 4200
Wire Wire Line
- 8050 3400 8500 3400
+ 7900 3400 8350 3400
Wire Wire Line
- 8450 2700 8450 4600
+ 8300 2700 8300 4600
Wire Wire Line
- 8450 4600 8650 4600
+ 8300 4600 8500 4600
Wire Wire Line
- 8050 2700 8450 2700
+ 7900 2700 8300 2700
$Comp
-L power:GND #PWR020
+L power:GND #PWR026
U 1 1 5EE75D69
-P 9450 5100
-F 0 "#PWR020" H 9450 4850 50 0001 C CNN
-F 1 "GND" H 9455 4927 50 0000 C CNN
-F 2 "" H 9450 5100 50 0001 C CNN
-F 3 "" H 9450 5100 50 0001 C CNN
- 1 9450 5100
+P 9300 5100
+F 0 "#PWR026" H 9300 4850 50 0001 C CNN
+F 1 "GND" H 9305 4927 50 0000 C CNN
+F 2 "" H 9300 5100 50 0001 C CNN
+F 3 "" H 9300 5100 50 0001 C CNN
+ 1 9300 5100
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR019
+L power:VCC #PWR025
U 1 1 5EE7620F
-P 9450 2700
-F 0 "#PWR019" H 9450 2550 50 0001 C CNN
-F 1 "VCC" H 9467 2873 50 0000 C CNN
-F 2 "" H 9450 2700 50 0001 C CNN
-F 3 "" H 9450 2700 50 0001 C CNN
- 1 9450 2700
+P 9300 2700
+F 0 "#PWR025" H 9300 2550 50 0001 C CNN
+F 1 "VCC" H 9317 2873 50 0000 C CNN
+F 2 "" H 9300 2700 50 0001 C CNN
+F 3 "" H 9300 2700 50 0001 C CNN
+ 1 9300 2700
1 0 0 -1
$EndComp
$Comp
-L Device:C C9
+L Device:C C12
U 1 1 5EE7734D
-P 8650 3150
-F 0 "C9" H 8650 3250 50 0000 L CNN
-F 1 "0.1uF" H 8550 2950 50 0000 L CNN
-F 2 "" H 8688 3000 50 0001 C CNN
-F 3 "~" H 8650 3150 50 0001 C CNN
- 1 8650 3150
+P 8500 3150
+F 0 "C12" H 8500 3250 50 0000 L CNN
+F 1 "0.1uF" H 8400 2950 50 0000 L CNN
+F 2 "" H 8538 3000 50 0001 C CNN
+F 3 "~" H 8500 3150 50 0001 C CNN
+ 1 8500 3150
1 0 0 -1
$EndComp
$Comp
-L Device:C C10
+L Device:C C13
U 1 1 5EEBDB7E
-P 10250 3150
-F 0 "C10" H 10100 3250 50 0000 L CNN
-F 1 "0.1uF" H 10000 3050 50 0000 L CNN
-F 2 "" H 10288 3000 50 0001 C CNN
-F 3 "~" H 10250 3150 50 0001 C CNN
- 1 10250 3150
+P 10100 3150
+F 0 "C13" H 9950 3250 50 0000 L CNN
+F 1 "0.1uF" H 9850 3050 50 0000 L CNN
+F 2 "" H 10138 3000 50 0001 C CNN
+F 3 "~" H 10100 3150 50 0001 C CNN
+ 1 10100 3150
-1 0 0 -1
$EndComp
$Comp
-L Device:C C11
+L Device:C C14
U 1 1 5EEBE0D7
-P 10450 3500
-F 0 "C11" V 10400 3600 50 0000 L CNN
-F 1 "0.1uF" V 10400 3200 50 0000 L CNN
-F 2 "" H 10488 3350 50 0001 C CNN
-F 3 "~" H 10450 3500 50 0001 C CNN
- 1 10450 3500
+P 10300 3500
+F 0 "C14" V 10250 3600 50 0000 L CNN
+F 1 "0.1uF" V 10250 3200 50 0000 L CNN
+F 2 "" H 10338 3350 50 0001 C CNN
+F 3 "~" H 10300 3500 50 0001 C CNN
+ 1 10300 3500
0 -1 1 0
$EndComp
Wire Wire Line
- 10300 3500 10250 3500
+ 10150 3500 10100 3500
Wire Wire Line
- 10250 3800 10300 3800
+ 10100 3800 10150 3800
$Comp
-L Device:C C12
+L Device:C C15
U 1 1 5EEC6839
-P 10450 3800
-F 0 "C12" V 10400 3900 50 0000 L CNN
-F 1 "0.1uF" V 10400 3500 50 0000 L CNN
-F 2 "" H 10488 3650 50 0001 C CNN
-F 3 "~" H 10450 3800 50 0001 C CNN
- 1 10450 3800
+P 10300 3800
+F 0 "C15" V 10250 3900 50 0000 L CNN
+F 1 "0.1uF" V 10250 3500 50 0000 L CNN
+F 2 "" H 10338 3650 50 0001 C CNN
+F 3 "~" H 10300 3800 50 0001 C CNN
+ 1 10300 3800
0 -1 1 0
$EndComp
$Comp
-L power:VCC #PWR023
+L power:VCC #PWR029
U 1 1 5EEEF5D1
-P 10800 3400
-F 0 "#PWR023" H 10800 3250 50 0001 C CNN
-F 1 "VCC" H 10817 3573 50 0000 C CNN
-F 2 "" H 10800 3400 50 0001 C CNN
-F 3 "" H 10800 3400 50 0001 C CNN
- 1 10800 3400
+P 10650 3400
+F 0 "#PWR029" H 10650 3250 50 0001 C CNN
+F 1 "VCC" H 10667 3573 50 0000 C CNN
+F 2 "" H 10650 3400 50 0001 C CNN
+F 3 "" H 10650 3400 50 0001 C CNN
+ 1 10650 3400
1 0 0 -1
$EndComp
Wire Wire Line
- 10800 3400 10800 3500
+ 10650 3400 10650 3500
Wire Wire Line
- 10800 3500 10600 3500
+ 10650 3500 10450 3500
$Comp
-L power:GND #PWR021
+L power:GND #PWR027
U 1 1 5EEF812A
-P 10700 3850
-F 0 "#PWR021" H 10700 3600 50 0001 C CNN
-F 1 "GND" H 10705 3677 50 0000 C CNN
-F 2 "" H 10700 3850 50 0001 C CNN
-F 3 "" H 10700 3850 50 0001 C CNN
- 1 10700 3850
+P 10550 3850
+F 0 "#PWR027" H 10550 3600 50 0001 C CNN
+F 1 "GND" H 10555 3677 50 0000 C CNN
+F 2 "" H 10550 3850 50 0001 C CNN
+F 3 "" H 10550 3850 50 0001 C CNN
+ 1 10550 3850
1 0 0 -1
$EndComp
Wire Wire Line
- 10600 3800 10700 3800
+ 10450 3800 10550 3800
Wire Wire Line
- 10700 3800 10700 3850
+ 10550 3800 10550 3850
Wire Wire Line
- 8050 4300 8400 4300
+ 7900 4300 8250 4300
Wire Wire Line
- 8050 4400 8650 4400
+ 7900 4400 8500 4400
Wire Wire Line
- 8400 4300 8400 4000
+ 8250 4300 8250 4000
Wire Wire Line
- 8400 4000 8650 4000
-Text Label 8550 4000 0 50 ~ 0
+ 8250 4000 8500 4000
+Text Label 8400 4000 0 50 ~ 0
TXA
-Text Label 8500 4600 0 50 ~ 0
+Text Label 8350 4600 0 50 ~ 0
~CTSA
-Text Label 8500 4200 0 50 ~ 0
+Text Label 8350 4200 0 50 ~ 0
~RTSA
-Text Label 8500 4400 0 50 ~ 0
+Text Label 8350 4400 0 50 ~ 0
RXA
$Comp
L Connector:Conn_01x03_Male J1
U 1 1 5F03FE41
-P 8700 4850
-F 0 "J1" H 8750 4700 50 0000 R CNN
-F 1 "SERB" H 8800 4600 50 0000 R CNN
-F 2 "" H 8700 4850 50 0001 C CNN
-F 3 "~" H 8700 4850 50 0001 C CNN
- 1 8700 4850
+P 8550 4850
+F 0 "J1" H 8600 4700 50 0000 R CNN
+F 1 "SERB" H 8650 4600 50 0000 R CNN
+F 2 "" H 8550 4850 50 0001 C CNN
+F 3 "~" H 8550 4850 50 0001 C CNN
+ 1 8550 4850
-1 0 0 -1
$EndComp
-Text Label 8150 4750 0 50 ~ 0
+Text Label 8000 4750 0 50 ~ 0
RXDB
-Text Label 8150 4850 0 50 ~ 0
+Text Label 8000 4850 0 50 ~ 0
TXDB
Wire Wire Line
- 8050 4650 8050 4850
+ 7900 4650 7900 4850
Wire Wire Line
- 8050 4850 8500 4850
+ 7900 4850 8350 4850
Wire Wire Line
- 8050 4550 8100 4550
+ 7900 4550 7950 4550
Wire Wire Line
- 8100 4550 8100 4750
+ 7950 4550 7950 4750
Wire Wire Line
- 8100 4750 8500 4750
+ 7950 4750 8350 4750
$Comp
-L power:GND #PWR018
+L power:GND #PWR024
U 1 1 5F09F89E
-P 8450 4950
-F 0 "#PWR018" H 8450 4700 50 0001 C CNN
-F 1 "GND" H 8455 4777 50 0000 C CNN
-F 2 "" H 8450 4950 50 0001 C CNN
-F 3 "" H 8450 4950 50 0001 C CNN
- 1 8450 4950
+P 8300 4950
+F 0 "#PWR024" H 8300 4700 50 0001 C CNN
+F 1 "GND" H 8305 4777 50 0000 C CNN
+F 2 "" H 8300 4950 50 0001 C CNN
+F 3 "" H 8300 4950 50 0001 C CNN
+ 1 8300 4950
1 0 0 -1
$EndComp
$Comp
L Connector:DB9_Male J2
U 1 1 5F10B0BC
-P 11000 4600
-F 0 "J2" H 10950 5150 50 0000 L CNN
-F 1 "SERA" H 10900 4050 50 0000 L CNN
-F 2 "" H 11000 4600 50 0001 C CNN
-F 3 " ~" H 11000 4600 50 0001 C CNN
- 1 11000 4600
+P 10850 4600
+F 0 "J2" H 10800 5150 50 0000 L CNN
+F 1 "SERA" H 10750 4050 50 0000 L CNN
+F 2 "" H 10850 4600 50 0001 C CNN
+F 3 " ~" H 10850 4600 50 0001 C CNN
+ 1 10850 4600
1 0 0 1
$EndComp
Wire Wire Line
- 10250 4000 10400 4000
+ 10100 4000 10250 4000
Wire Wire Line
- 10250 4400 10700 4400
+ 10100 4400 10550 4400
Wire Wire Line
- 10400 4000 10400 4600
+ 10250 4000 10250 4600
Wire Wire Line
- 10400 4600 10700 4600
+ 10250 4600 10550 4600
Wire Wire Line
- 10250 4200 10350 4200
+ 10100 4200 10200 4200
Wire Wire Line
- 10350 4200 10350 4500
+ 10200 4200 10200 4500
Wire Wire Line
- 10350 4500 10700 4500
+ 10200 4500 10550 4500
Wire Wire Line
- 10250 4600 10300 4600
+ 10100 4600 10150 4600
Wire Wire Line
- 10300 4600 10300 4700
+ 10150 4600 10150 4700
Wire Wire Line
- 10300 4700 10700 4700
+ 10150 4700 10550 4700
$Comp
-L power:GND #PWR022
+L power:GND #PWR028
U 1 1 5F1878FB
-P 10700 5050
-F 0 "#PWR022" H 10700 4800 50 0001 C CNN
-F 1 "GND" H 10705 4877 50 0000 C CNN
-F 2 "" H 10700 5050 50 0001 C CNN
-F 3 "" H 10700 5050 50 0001 C CNN
- 1 10700 5050
+P 10550 5050
+F 0 "#PWR028" H 10550 4800 50 0001 C CNN
+F 1 "GND" H 10555 4877 50 0000 C CNN
+F 2 "" H 10550 5050 50 0001 C CNN
+F 3 "" H 10550 5050 50 0001 C CNN
+ 1 10550 5050
1 0 0 -1
$EndComp
Wire Wire Line
- 10700 5000 10700 5050
-NoConn ~ 10700 4200
-NoConn ~ 10700 4300
-NoConn ~ 10700 4800
-NoConn ~ 10700 4900
-Text Label 10500 4400 0 50 ~ 0
+ 10550 5000 10550 5050
+NoConn ~ 10550 4200
+NoConn ~ 10550 4300
+NoConn ~ 10550 4800
+NoConn ~ 10550 4900
+Text Label 10350 4400 0 50 ~ 0
SRTX
-Text Label 10500 4500 0 50 ~ 0
+Text Label 10350 4500 0 50 ~ 0
SRTS
-Text Label 10500 4600 0 50 ~ 0
+Text Label 10350 4600 0 50 ~ 0
STXA
-Text Label 10500 4700 0 50 ~ 0
+Text Label 10350 4700 0 50 ~ 0
SCTS
Wire Bus Line
- 3050 2600 4600 2600
-Wire Bus Line
- 2900 5850 4450 5850
-Connection ~ 6700 5050
-Connection ~ 6700 5600
-Text Label 6750 5250 0 50 ~ 0
+ 3000 5850 4550 5850
+Connection ~ 6550 5050
+Connection ~ 6550 5600
+Text Label 6600 5250 0 50 ~ 0
UCLK
Wire Wire Line
- 6700 5250 6950 5250
-Connection ~ 7500 5600
+ 6550 5250 6800 5250
+Connection ~ 7350 5600
Wire Wire Line
- 1200 4050 900 4050
-Text Label 950 4050 0 50 ~ 0
+ 1300 4050 1000 4050
+Text Label 1050 4050 0 50 ~ 0
~WAIT
$Comp
L Device:R R3
U 1 1 5F385448
-P 750 4050
-F 0 "R3" V 850 4050 50 0000 L CNN
-F 1 "4.7k" V 750 3950 50 0000 L CNN
-F 2 "" V 680 4050 50 0001 C CNN
-F 3 "~" H 750 4050 50 0001 C CNN
- 1 750 4050
+P 850 4050
+F 0 "R3" V 950 4050 50 0000 L CNN
+F 1 "4.7k" V 850 3950 50 0000 L CNN
+F 2 "" V 780 4050 50 0001 C CNN
+F 3 "~" H 850 4050 50 0001 C CNN
+ 1 850 4050
0 -1 -1 0
$EndComp
-Text Label 1050 3150 0 50 ~ 0
+Text Label 1150 3150 0 50 ~ 0
CLK
-Text Label 950 3550 0 50 ~ 0
+Text Label 1050 3550 0 50 ~ 0
~INT
Wire Wire Line
- 1200 3550 900 3550
+ 1300 3550 1000 3550
$Comp
L power:VCC #PWR01
U 1 1 5F3DA2B2
-P 600 3350
-F 0 "#PWR01" H 600 3200 50 0001 C CNN
-F 1 "VCC" H 600 3500 50 0000 C CNN
-F 2 "" H 600 3350 50 0001 C CNN
-F 3 "" H 600 3350 50 0001 C CNN
- 1 600 3350
+P 700 3350
+F 0 "#PWR01" H 700 3200 50 0001 C CNN
+F 1 "VCC" H 700 3500 50 0000 C CNN
+F 2 "" H 700 3350 50 0001 C CNN
+F 3 "" H 700 3350 50 0001 C CNN
+ 1 700 3350
1 0 0 -1
$EndComp
$Comp
L Device:R R2
U 1 1 5F3D9F65
-P 750 3550
-F 0 "R2" V 850 3550 50 0000 L CNN
-F 1 "4.7k" V 750 3450 50 0000 L CNN
-F 2 "" V 680 3550 50 0001 C CNN
-F 3 "~" H 750 3550 50 0001 C CNN
- 1 750 3550
+P 850 3550
+F 0 "R2" V 950 3550 50 0000 L CNN
+F 1 "4.7k" V 850 3450 50 0000 L CNN
+F 2 "" V 780 3550 50 0001 C CNN
+F 3 "~" H 850 3550 50 0001 C CNN
+ 1 850 3550
0 -1 1 0
$EndComp
Wire Wire Line
- 600 3350 600 3450
-Connection ~ 600 3550
+ 700 3350 700 3450
+Connection ~ 700 3550
Wire Wire Line
- 600 3550 600 4050
+ 700 3550 700 4050
$Comp
-L Device:C C1
+L Device:C C2
U 1 1 5F442E26
P 1850 7150
-F 0 "C1" H 1900 7250 50 0000 L CNN
+F 0 "C2" H 1900 7250 50 0000 L CNN
F 1 "0.1uF" H 1900 7050 50 0000 L CNN
F 2 "" H 1888 7000 50 0001 C CNN
F 3 "~" H 1850 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L Device:C C2
+L Device:C C3
U 1 1 5F444327
P 2150 7150
-F 0 "C2" H 2200 7250 50 0000 L CNN
+F 0 "C3" H 2200 7250 50 0000 L CNN
F 1 "0.1uF" H 2200 7050 50 0000 L CNN
F 2 "" H 2188 7000 50 0001 C CNN
F 3 "~" H 2150 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L Device:C C3
+L Device:C C4
U 1 1 5F444547
P 2450 7150
-F 0 "C3" H 2500 7250 50 0000 L CNN
+F 0 "C4" H 2500 7250 50 0000 L CNN
F 1 "0.1uF" H 2500 7050 50 0000 L CNN
F 2 "" H 2488 7000 50 0001 C CNN
F 3 "~" H 2450 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L Device:C C4
+L Device:C C6
U 1 1 5F444841
P 2750 7150
-F 0 "C4" H 2800 7250 50 0000 L CNN
+F 0 "C6" H 2800 7250 50 0000 L CNN
F 1 "0.1uF" H 2800 7050 50 0000 L CNN
F 2 "" H 2788 7000 50 0001 C CNN
F 3 "~" H 2750 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L Device:C C5
+L Device:C C7
U 1 1 5F444B0C
P 3050 7150
-F 0 "C5" H 3100 7250 50 0000 L CNN
+F 0 "C7" H 3100 7250 50 0000 L CNN
F 1 "0.1uF" H 3100 7050 50 0000 L CNN
F 2 "" H 3088 7000 50 0001 C CNN
F 3 "~" H 3050 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L Device:C C6
+L Device:C C8
U 1 1 5F444DC1
P 3350 7150
-F 0 "C6" H 3400 7250 50 0000 L CNN
+F 0 "C8" H 3400 7250 50 0000 L CNN
F 1 "0.1uF" H 3400 7050 50 0000 L CNN
F 2 "" H 3388 7000 50 0001 C CNN
F 3 "~" H 3350 7150 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L power:GND #PWR06
+L power:GND #PWR010
U 1 1 5F4451AA
P 2600 7300
-F 0 "#PWR06" H 2600 7050 50 0001 C CNN
+F 0 "#PWR010" H 2600 7050 50 0001 C CNN
F 1 "GND" H 2605 7127 50 0000 C CNN
F 2 "" H 2600 7300 50 0001 C CNN
F 3 "" H 2600 7300 50 0001 C CNN
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR05
+L power:VCC #PWR09
U 1 1 5F4467BC
P 2600 7000
-F 0 "#PWR05" H 2600 6850 50 0001 C CNN
+F 0 "#PWR09" H 2600 6850 50 0001 C CNN
F 1 "VCC" H 2600 7150 50 0000 C CNN
F 2 "" H 2600 7000 50 0001 C CNN
F 3 "" H 2600 7000 50 0001 C CNN
$Comp
L Device:R R1
U 1 1 5F463EA2
-P 750 3450
-F 0 "R1" V 850 3450 50 0000 L CNN
-F 1 "4.7k" V 750 3350 50 0000 L CNN
-F 2 "" V 680 3450 50 0001 C CNN
-F 3 "~" H 750 3450 50 0001 C CNN
- 1 750 3450
+P 850 3450
+F 0 "R1" V 950 3450 50 0000 L CNN
+F 1 "4.7k" V 850 3350 50 0000 L CNN
+F 2 "" V 780 3450 50 0001 C CNN
+F 3 "~" H 850 3450 50 0001 C CNN
+ 1 850 3450
0 -1 -1 0
$EndComp
-Connection ~ 600 3450
+Connection ~ 700 3450
Wire Wire Line
- 600 3450 600 3550
+ 700 3450 700 3550
Wire Wire Line
- 900 3450 1200 3450
-Text Label 950 3450 0 50 ~ 0
+ 1000 3450 1300 3450
+Text Label 1050 3450 0 50 ~ 0
~NMI
$Comp
-L 74xx:74LS05 U5
-U 1 1 5F4A99C1
-P 7450 6200
-F 0 "U5" H 7450 6050 50 0000 C CNN
-F 1 "74LS05" H 7550 6350 50 0000 C CNN
-F 2 "" H 7450 6200 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 7450 6200 50 0001 C CNN
- 1 7450 6200
+L 74xx:74LS05 U4
+U 2 1 5F4A99C1
+P 7300 6200
+F 0 "U4" H 7300 6050 50 0000 C CNN
+F 1 "74LS05" H 7400 6350 50 0000 C CNN
+F 2 "" H 7300 6200 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 7300 6200 50 0001 C CNN
+ 2 7300 6200
-1 0 0 1
$EndComp
$Comp
L Diode:1N4148 D1
U 1 1 5F4AD646
-P 8200 6200
-F 0 "D1" H 8200 5984 50 0000 C CNN
-F 1 "1N4148" H 8200 6075 50 0000 C CNN
-F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8200 6025 50 0001 C CNN
-F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 8200 6200 50 0001 C CNN
- 1 8200 6200
+P 8050 6200
+F 0 "D1" H 8050 5984 50 0000 C CNN
+F 1 "1N4148" H 8050 6075 50 0000 C CNN
+F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 8050 6025 50 0001 C CNN
+F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 8050 6200 50 0001 C CNN
+ 1 8050 6200
-1 0 0 1
$EndComp
$Comp
-L Device:R R4
+L Device:R R8
U 1 1 5F4AE323
-P 7900 6050
-F 0 "R4" H 7830 6004 50 0000 R CNN
-F 1 "4k7" H 7830 6095 50 0000 R CNN
-F 2 "" V 7830 6050 50 0001 C CNN
-F 3 "~" H 7900 6050 50 0001 C CNN
- 1 7900 6050
+P 7750 6050
+F 0 "R8" H 7680 6004 50 0000 R CNN
+F 1 "4k7" H 7680 6095 50 0000 R CNN
+F 2 "" V 7680 6050 50 0001 C CNN
+F 3 "~" H 7750 6050 50 0001 C CNN
+ 1 7750 6050
1 0 0 1
$EndComp
$Comp
-L power:VCC #PWR017
+L power:VCC #PWR023
U 1 1 5F4B4193
-P 7900 5900
-F 0 "#PWR017" H 7900 5750 50 0001 C CNN
-F 1 "VCC" H 7917 6073 50 0000 C CNN
-F 2 "" H 7900 5900 50 0001 C CNN
-F 3 "" H 7900 5900 50 0001 C CNN
- 1 7900 5900
+P 7750 5900
+F 0 "#PWR023" H 7750 5750 50 0001 C CNN
+F 1 "VCC" H 7767 6073 50 0000 C CNN
+F 2 "" H 7750 5900 50 0001 C CNN
+F 3 "" H 7750 5900 50 0001 C CNN
+ 1 7750 5900
1 0 0 -1
$EndComp
Wire Wire Line
- 8050 5250 8050 6200
-Connection ~ 8050 6200
+ 7900 5250 7900 6200
+Connection ~ 7900 6200
Wire Wire Line
- 8350 6200 8650 6200
-Text Label 8350 6200 0 50 ~ 0
+ 8200 6200 8500 6200
+Text Label 8200 6200 0 50 ~ 0
UARTEN
Wire Wire Line
- 7750 6200 7900 6200
-Connection ~ 7900 6200
+ 7600 6200 7750 6200
+Connection ~ 7750 6200
Wire Wire Line
- 7900 6200 8050 6200
+ 7750 6200 7900 6200
Wire Wire Line
- 7150 6200 750 6200
+ 7000 6200 850 6200
Wire Wire Line
- 750 6200 750 4250
+ 850 6200 850 4250
Wire Wire Line
- 750 4250 900 4250
+ 850 4250 1000 4250
Wire Wire Line
- 900 4250 900 4050
-Connection ~ 900 4050
+ 1000 4250 1000 4050
+Connection ~ 1000 4050
Wire Wire Line
- 4300 1300 4600 1300
-Text Label 4300 1300 0 50 ~ 0
+ 4400 1200 4700 1200
+Text Label 4400 1200 0 50 ~ 0
UARTEN
Wire Wire Line
- 8050 5150 8200 5150
-Text Label 8050 5150 0 50 ~ 0
+ 7900 5150 8050 5150
+Text Label 7900 5150 0 50 ~ 0
~INT
Wire Wire Line
- 8450 4950 8500 4950
-Text Notes 3850 2150 0 50 ~ 0
+ 8300 4950 8350 4950
+Text Notes 3950 2300 0 50 ~ 0
GAL16V8: glue.pld
$Comp
-L power:VCC #PWR02
+L power:VCC #PWR04
U 1 1 5F6A583C
-P 1200 5150
-F 0 "#PWR02" H 1200 5000 50 0001 C CNN
-F 1 "VCC" H 1217 5323 50 0000 C CNN
-F 2 "" H 1200 5150 50 0001 C CNN
-F 3 "" H 1200 5150 50 0001 C CNN
- 1 1200 5150
+P 1300 5150
+F 0 "#PWR04" H 1300 5000 50 0001 C CNN
+F 1 "VCC" H 1317 5323 50 0000 C CNN
+F 2 "" H 1300 5150 50 0001 C CNN
+F 3 "" H 1300 5150 50 0001 C CNN
+ 1 1300 5150
1 0 0 -1
$EndComp
Wire Wire Line
- 3200 1700 3000 1700
-Text Label 3100 1700 0 50 ~ 0
+ 3300 1600 3100 1600
+Text Label 3200 1600 0 50 ~ 0
~M1
Wire Wire Line
- 3200 2000 3000 2000
-Text Label 3000 2000 0 50 ~ 0
+ 3300 1900 3100 1900
+Text Label 3100 1900 0 50 ~ 0
~RFSH
Wire Wire Line
- 4300 1800 4600 1800
-Text Label 4300 1800 0 50 ~ 0
+ 4400 1700 4700 1700
+Text Label 4400 1700 0 50 ~ 0
~IACK
Wire Wire Line
- 6950 4700 6750 4700
-Text Label 6750 4700 0 50 ~ 0
+ 6800 4700 6600 4700
+Text Label 6600 4700 0 50 ~ 0
~IACK
$Comp
-L 74xx:74HC14 U8
-U 1 1 5F7B3414
-P 750 2400
-F 0 "U8" V 550 2400 50 0000 L CNN
-F 1 "74HC14" H 750 2250 50 0000 L CNN
-F 2 "" H 750 2400 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 750 2400 50 0001 C CNN
- 1 750 2400
+L 74xx:74HC14 U1
+U 6 1 5F7B3414
+P 850 2400
+F 0 "U1" V 650 2400 50 0000 L CNN
+F 1 "74HC14" H 850 2250 50 0000 L CNN
+F 2 "" H 850 2400 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 850 2400 50 0001 C CNN
+ 6 850 2400
0 1 1 0
$EndComp
Wire Wire Line
- 750 2700 750 3150
+ 850 2700 850 3150
Wire Wire Line
- 750 3150 1200 3150
+ 850 3150 1300 3150
Wire Wire Line
- 750 2100 750 1850
-Text Label 750 2050 1 50 ~ 0
+ 850 2100 850 1850
+Text Label 850 2050 1 50 ~ 0
UCLK
Wire Wire Line
- 1200 1650 1250 1650
+ 1300 1650 1350 1650
$Comp
-L power:VCC #PWR025
+L power:VCC #PWR03
U 1 1 5F97FBA6
-P 1200 1650
-F 0 "#PWR025" H 1200 1500 50 0001 C CNN
-F 1 "VCC" H 1200 1800 50 0000 C CNN
-F 2 "" H 1200 1650 50 0001 C CNN
-F 3 "" H 1200 1650 50 0001 C CNN
- 1 1200 1650
+P 1300 1650
+F 0 "#PWR03" H 1300 1500 50 0001 C CNN
+F 1 "VCC" H 1300 1800 50 0000 C CNN
+F 2 "" H 1300 1650 50 0001 C CNN
+F 3 "" H 1300 1650 50 0001 C CNN
+ 1 1300 1650
1 0 0 -1
$EndComp
Wire Wire Line
- 650 1350 650 1250
+ 750 1350 750 1250
$Comp
-L power:GND #PWR024
+L power:GND #PWR02
U 1 1 5F96EC3C
-P 650 1350
-F 0 "#PWR024" H 650 1100 50 0001 C CNN
-F 1 "GND" H 655 1177 50 0000 C CNN
-F 2 "" H 650 1350 50 0001 C CNN
-F 3 "" H 650 1350 50 0001 C CNN
- 1 650 1350
+P 750 1350
+F 0 "#PWR02" H 750 1100 50 0001 C CNN
+F 1 "GND" H 755 1177 50 0000 C CNN
+F 2 "" H 750 1350 50 0001 C CNN
+F 3 "" H 750 1350 50 0001 C CNN
+ 1 750 1350
1 0 0 -1
$EndComp
-Connection ~ 1100 1250
+Connection ~ 1200 1250
Wire Wire Line
- 1050 1250 1100 1250
+ 1150 1250 1200 1250
$Comp
L Switch:SW_Push SW1
U 1 1 5F933400
-P 850 1250
-F 0 "SW1" H 850 1535 50 0000 C CNN
-F 1 "RESET" H 850 1444 50 0000 C CNN
-F 2 "" H 850 1450 50 0001 C CNN
-F 3 "~" H 850 1450 50 0001 C CNN
- 1 850 1250
+P 950 1250
+F 0 "SW1" H 950 1535 50 0000 C CNN
+F 1 "RESET" H 950 1444 50 0000 C CNN
+F 2 "" H 950 1450 50 0001 C CNN
+F 3 "~" H 950 1450 50 0001 C CNN
+ 1 950 1250
1 0 0 -1
$EndComp
-Connection ~ 1750 1050
+Connection ~ 1850 1050
Wire Wire Line
- 1400 1050 1750 1050
+ 1500 1050 1850 1050
Wire Wire Line
- 1400 950 1400 1050
+ 1500 950 1500 1050
Wire Wire Line
- 1100 950 1400 950
+ 1200 950 1500 950
Wire Wire Line
- 1100 1250 1250 1250
+ 1200 1250 1350 1250
$Comp
-L Device:R R6
+L Device:R R5
U 1 1 5F901EA0
-P 1100 1100
-F 0 "R6" H 1170 1146 50 0000 L CNN
-F 1 "1M" V 1100 1050 50 0000 L CNN
-F 2 "" V 1030 1100 50 0001 C CNN
-F 3 "~" H 1100 1100 50 0001 C CNN
- 1 1100 1100
+P 1200 1100
+F 0 "R5" H 1270 1146 50 0000 L CNN
+F 1 "1M" V 1200 1050 50 0000 L CNN
+F 2 "" V 1130 1100 50 0001 C CNN
+F 3 "~" H 1200 1100 50 0001 C CNN
+ 1 1200 1100
1 0 0 -1
$EndComp
-NoConn ~ 1250 1450
+NoConn ~ 1350 1450
$Comp
-L power:VCC #PWR028
+L power:VCC #PWR011
U 1 1 5F8CF8A4
-P 2600 1150
-F 0 "#PWR028" H 2600 1000 50 0001 C CNN
-F 1 "VCC" H 2617 1323 50 0000 C CNN
-F 2 "" H 2600 1150 50 0001 C CNN
-F 3 "" H 2600 1150 50 0001 C CNN
- 1 2600 1150
+P 2700 1150
+F 0 "#PWR011" H 2700 1000 50 0001 C CNN
+F 1 "VCC" H 2717 1323 50 0000 C CNN
+F 2 "" H 2700 1150 50 0001 C CNN
+F 3 "" H 2700 1150 50 0001 C CNN
+ 1 2700 1150
1 0 0 -1
$EndComp
-Text Label 2250 1250 0 50 ~ 0
+Text Label 2350 1250 0 50 ~ 0
RST
Wire Wire Line
- 2250 1250 2450 1250
+ 2350 1250 2550 1250
Wire Wire Line
- 2600 1850 1750 1850
+ 2700 1850 1850 1850
Wire Wire Line
- 2250 1650 2600 1650
-Connection ~ 2600 1450
+ 2350 1650 2700 1650
+Connection ~ 2700 1450
Wire Wire Line
- 2600 1450 2600 1650
+ 2700 1450 2700 1650
$Comp
-L Device:C_Small C13
+L Device:C_Small C5
U 1 1 5F880397
-P 2600 1750
-F 0 "C13" H 2509 1704 50 0000 R CNN
-F 1 "0.1uF" H 2509 1795 50 0000 R CNN
-F 2 "" H 2600 1750 50 0001 C CNN
-F 3 "~" H 2600 1750 50 0001 C CNN
- 1 2600 1750
+P 2700 1750
+F 0 "C5" H 2609 1704 50 0000 R CNN
+F 1 "0.1uF" H 2609 1795 50 0000 R CNN
+F 2 "" H 2700 1750 50 0001 C CNN
+F 3 "~" H 2700 1750 50 0001 C CNN
+ 1 2700 1750
1 0 0 1
$EndComp
Wire Wire Line
- 2250 1450 2600 1450
+ 2350 1450 2700 1450
$Comp
-L Device:R R7
+L Device:R R6
U 1 1 5F8611FE
-P 2600 1300
-F 0 "R7" H 2650 1350 50 0000 L CNN
-F 1 "9.1k" V 2600 1200 50 0000 L CNN
-F 2 "" V 2530 1300 50 0001 C CNN
-F 3 "~" H 2600 1300 50 0001 C CNN
- 1 2600 1300
+P 2700 1300
+F 0 "R6" H 2750 1350 50 0000 L CNN
+F 1 "9.1k" V 2700 1200 50 0000 L CNN
+F 2 "" V 2630 1300 50 0001 C CNN
+F 3 "~" H 2700 1300 50 0001 C CNN
+ 1 2700 1300
1 0 0 -1
$EndComp
$Comp
-L power:VCC #PWR026
+L power:VCC #PWR05
U 1 1 5F860836
-P 1750 1050
-F 0 "#PWR026" H 1750 900 50 0001 C CNN
-F 1 "VCC" H 1767 1223 50 0000 C CNN
-F 2 "" H 1750 1050 50 0001 C CNN
-F 3 "" H 1750 1050 50 0001 C CNN
- 1 1750 1050
+P 1850 1050
+F 0 "#PWR05" H 1850 900 50 0001 C CNN
+F 1 "VCC" H 1867 1223 50 0000 C CNN
+F 2 "" H 1850 1050 50 0001 C CNN
+F 3 "" H 1850 1050 50 0001 C CNN
+ 1 1850 1050
1 0 0 -1
$EndComp
$Comp
-L power:GND #PWR027
+L power:GND #PWR06
U 1 1 5F860553
-P 1750 1850
-F 0 "#PWR027" H 1750 1600 50 0001 C CNN
-F 1 "GND" H 1755 1677 50 0000 C CNN
-F 2 "" H 1750 1850 50 0001 C CNN
-F 3 "" H 1750 1850 50 0001 C CNN
- 1 1750 1850
+P 1850 1850
+F 0 "#PWR06" H 1850 1600 50 0001 C CNN
+F 1 "GND" H 1855 1677 50 0000 C CNN
+F 2 "" H 1850 1850 50 0001 C CNN
+F 3 "" H 1850 1850 50 0001 C CNN
+ 1 1850 1850
1 0 0 -1
$EndComp
$Comp
-L Timer:LM555 U9
+L Timer:LM555 U2
U 1 1 5F85DCB5
-P 1750 1450
-F 0 "U9" H 1900 1800 50 0000 C CNN
-F 1 "LM555" H 1750 1450 50 0000 C CNN
-F 2 "" H 1750 1450 50 0001 C CNN
-F 3 "http://www.ti.com/lit/ds/symlink/lm555.pdf" H 1750 1450 50 0001 C CNN
- 1 1750 1450
+P 1850 1450
+F 0 "U2" H 2000 1800 50 0000 C CNN
+F 1 "LM555" H 1850 1450 50 0000 C CNN
+F 2 "" H 1850 1450 50 0001 C CNN
+F 3 "http://www.ti.com/lit/ds/symlink/lm555.pdf" H 1850 1450 50 0001 C CNN
+ 1 1850 1450
1 0 0 -1
$EndComp
$Comp
-L 74xx:74LS05 U10
+L 74xx:74LS05 U4
U 1 1 5F9CB042
-P 2350 800
-F 0 "U10" H 2350 650 50 0000 C CNN
-F 1 "74LS05" H 2450 950 50 0000 C CNN
-F 2 "" H 2350 800 50 0001 C CNN
-F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 2350 800 50 0001 C CNN
- 1 2350 800
+P 2450 800
+F 0 "U4" H 2450 650 50 0000 C CNN
+F 1 "74LS05" H 2550 950 50 0000 C CNN
+F 2 "" H 2450 800 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74LS05" H 2450 800 50 0001 C CNN
+ 1 2450 800
1 0 0 -1
$EndComp
Wire Wire Line
- 2050 800 2050 1050
+ 2150 800 2150 1050
Wire Wire Line
- 2050 1050 2450 1050
+ 2150 1050 2550 1050
Wire Wire Line
- 2450 1050 2450 1250
-Text Label 2750 800 0 50 ~ 0
+ 2550 1050 2550 1250
+Text Label 2850 800 0 50 ~ 0
~RST
$Comp
-L Device:R R5
+L Device:R R4
U 1 1 5FA0761C
-P 950 2700
-F 0 "R5" H 1020 2746 50 0000 L CNN
-F 1 "4.7k" V 950 2600 50 0000 L CNN
-F 2 "" V 880 2700 50 0001 C CNN
-F 3 "~" H 950 2700 50 0001 C CNN
- 1 950 2700
+P 1050 2700
+F 0 "R4" H 1120 2746 50 0000 L CNN
+F 1 "4.7k" V 1050 2600 50 0000 L CNN
+F 2 "" V 980 2700 50 0001 C CNN
+F 3 "~" H 1050 2700 50 0001 C CNN
+ 1 1050 2700
1 0 0 -1
$EndComp
-Text Notes 1250 700 0 50 ~ 0
+Text Notes 1350 700 0 50 ~ 0
Power-on reset
Wire Wire Line
- 2650 800 2900 800
+ 2750 800 3000 800
Wire Wire Line
- 950 2850 1200 2850
+ 1050 2850 1300 2850
Wire Wire Line
- 950 2550 1900 2550
-Connection ~ 1900 2550
-Connection ~ 2600 1650
-Connection ~ 1750 1850
+ 1050 2550 2000 2550
+Connection ~ 2000 2550
+Connection ~ 2700 1650
+Connection ~ 1850 1850
$Comp
-L Device:C_Small C?
+L Device:C_Small C1
U 1 1 5FC80F1C
-P 1100 1700
-F 0 "C?" H 1009 1654 50 0000 R CNN
-F 1 "0.1uF" H 1009 1745 50 0000 R CNN
-F 2 "" H 1100 1700 50 0001 C CNN
-F 3 "~" H 1100 1700 50 0001 C CNN
- 1 1100 1700
+P 1200 1700
+F 0 "C1" H 1109 1654 50 0000 R CNN
+F 1 "0.1uF" H 1109 1745 50 0000 R CNN
+F 2 "" H 1200 1700 50 0001 C CNN
+F 3 "~" H 1200 1700 50 0001 C CNN
+ 1 1200 1700
1 0 0 1
$EndComp
Wire Wire Line
- 1100 1800 1100 1850
+ 1200 1800 1200 1850
+Wire Wire Line
+ 1200 1850 1850 1850
+Wire Wire Line
+ 1200 1600 1200 1250
+NoConn ~ 1300 5250
+NoConn ~ 1300 4150
+Wire Wire Line
+ 1300 3850 1100 3850
+Text Label 1200 3850 0 50 ~ 0
+~M1
+Wire Wire Line
+ 1300 3950 1100 3950
+Text Label 1100 3950 0 50 ~ 0
+~RFSH
+Connection ~ 4700 2600
+Wire Bus Line
+ 4600 2600 4700 2600
+Wire Bus Line
+ 4700 2600 6350 2600
+Wire Bus Line
+ 3150 2600 4700 2600
+Connection ~ 3000 2600
+Wire Wire Line
+ 3300 2000 3100 2000
+Wire Wire Line
+ 3300 2100 3100 2100
+Text Label 3200 2000 0 50 ~ 0
+~RD
+Text Label 3200 2100 0 50 ~ 0
+~WR
+$Comp
+L 74xx:74HC14 U1
+U 5 1 5FEF66B9
+P 5600 1300
+F 0 "U1" H 5550 1450 50 0000 L CNN
+F 1 "74HC14" H 5550 1150 50 0000 L CNN
+F 2 "" H 5600 1300 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 5600 1300 50 0001 C CNN
+ 5 5600 1300
+ 1 0 0 -1
+$EndComp
+$Comp
+L Device:C_Small C9
+U 1 1 5FEF828C
+P 5100 1100
+F 0 "C9" H 5008 1054 50 0000 R CNN
+F 1 "0.1uF" H 5008 1145 50 0000 R CNN
+F 2 "" H 5100 1100 50 0001 C CNN
+F 3 "~" H 5100 1100 50 0001 C CNN
+ 1 5100 1100
+ -1 0 0 1
+$EndComp
+$Comp
+L Device:R R7
+U 1 1 5FF0FBDF
+P 4850 1300
+F 0 "R7" V 4750 1250 50 0000 L CNN
+F 1 "120R" V 4850 1200 50 0000 L CNN
+F 2 "" V 4780 1300 50 0001 C CNN
+F 3 "~" H 4850 1300 50 0001 C CNN
+ 1 4850 1300
+ 0 1 1 0
+$EndComp
+$Comp
+L power:VCC #PWR018
+U 1 1 5FF26567
+P 5100 1000
+F 0 "#PWR018" H 5100 850 50 0001 C CNN
+F 1 "VCC" H 5117 1173 50 0000 C CNN
+F 2 "" H 5100 1000 50 0001 C CNN
+F 3 "" H 5100 1000 50 0001 C CNN
+ 1 5100 1000
+ 1 0 0 -1
+$EndComp
+$Comp
+L 74xx:74HC14 U1
+U 4 1 5FF485F0
+P 6200 1300
+F 0 "U1" H 6150 1450 50 0000 L CNN
+F 1 "74HC14" H 6150 1150 50 0000 L CNN
+F 2 "" H 6200 1300 50 0001 C CNN
+F 3 "http://www.ti.com/lit/gpn/sn74HC14" H 6200 1300 50 0001 C CNN
+ 4 6200 1300
+ 1 0 0 -1
+$EndComp
+Wire Wire Line
+ 6500 1300 6800 1300
Wire Wire Line
- 1100 1850 1750 1850
+ 5000 1300 5100 1300
Wire Wire Line
- 1100 1600 1100 1250
+ 5100 1200 5100 1300
Wire Bus Line
- 6500 2600 6500 3200
+ 6350 2600 6350 3200
Wire Bus Line
- 2900 1200 2900 2600
+ 3000 1100 3000 2600
Wire Bus Line
- 6550 3400 6550 4400
+ 6400 3400 6400 4400
Wire Bus Line
- 4450 3600 4450 5850
+ 4550 3600 4550 5850
Wire Bus Line
- 2900 4650 2900 5850
+ 3000 4650 3000 5850
Wire Bus Line
- 3050 2600 3050 4800
+ 3150 2600 3150 4800
Wire Bus Line
- 4600 2600 4600 4600
+ 4700 2600 4700 4600
Wire Bus Line
- 2900 2600 2900 4250
+ 3000 2600 3000 4250
+Connection ~ 5100 1300
+Wire Wire Line
+ 5100 1300 5300 1300
+Text Notes 5350 950 0 50 ~ 0
+Delay the UART ~CS~ for a few ns to bring the\ntiming between R/~W~ and ~CS~ within spec\n(this might have been a red herring and not necessary)
$EndSCHEMATC
projects / z80comp2 / commitdiff