Apple-2-HW/unified_retro_keyboard
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5fa0f80b4e
unified_retro_keyboard/hardware/interface-osi/interface-osi.sch
Dave 5fa0f80b4e Add OSI interface schematic 
Provides a keyboard interface to interface with OSI computers.  Equivalent to an
OSI 542C.

- Includes sound circuits

- Includes RESET delay circuit

- SHIFT LOCK can be mechanical push-on/push-off or soft toggle, selectable by
jumper.

- Provide SHIFT LOCK LED output.
2020-04-21 14:30:59 -05:00

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EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr USLedger 17000 11000
encoding utf-8
Sheet 1 3
Title "OSI Interface for Universal Retro Keyboard"
Date "2019-08-25"
Rev "1.0"
Comp "OSIWeb.org"
Comment1 "Main Keyboard Interface"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
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Wire Wire Line
11300 5100 12460 5100
Wire Wire Line
11300 5000 12460 5000
Wire Wire Line
11300 4900 12460 4900
Wire Wire Line
11300 4800 12460 4800
Wire Wire Line
11300 4700 12460 4700
Wire Wire Line
11300 4600 12460 4600
Wire Wire Line
11300 4500 12460 4500
Wire Wire Line
11300 4400 12460 4400
Wire Wire Line
11300 4300 12460 4300
Wire Wire Line
11300 4200 12460 4200
Wire Wire Line
11300 4100 12460 4100
Text Label 11450 4900 0 50 ~ 0
Col0
Text Label 11450 5000 0 50 ~ 0
Col1
Text Label 11450 5100 0 50 ~ 0
Col2
Text Label 11450 5200 0 50 ~ 0
Col3
Text Label 11450 5300 0 50 ~ 0
Col4
Text Label 11450 5400 0 50 ~ 0
Col5
Text Label 11450 5500 0 50 ~ 0
Col6
Text Label 11450 5600 0 50 ~ 0
Col7
Text Label 11450 4100 0 50 ~ 0
Row0
Text Label 11450 4200 0 50 ~ 0
Row1
Text Label 11450 4300 0 50 ~ 0
Row2
Text Label 11450 4400 0 50 ~ 0
Row3
Text Label 11450 4800 0 50 ~ 0
Row7
Text Label 11450 4700 0 50 ~ 0
Row6
Text Label 11450 4600 0 50 ~ 0
Row5
Text Label 11450 4500 0 50 ~ 0
Row4
Wire Bus Line
7500 5800 11200 5800
$Comp
L Diode:1N4148 D4
U 1 1 5F662E5C
P 10050 3000
F 0 "D4" H 10000 2150 50 0000 C CNN
F 1 "1N4148" H 10050 3125 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10050 2825 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10050 3000 50 0001 C CNN
1 10050 3000
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D8
U 1 1 5F665916
P 10350 3100
F 0 "D8" H 10300 2350 50 0000 C CNN
F 1 "1N4148" H 10350 3225 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10350 2925 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10350 3100 50 0001 C CNN
1 10350 3100
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D1
U 1 1 5F6799F8
P 10000 3200
F 0 "D1" H 10000 2450 50 0000 C CNN
F 1 "1N4148" H 10000 3325 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10000 3025 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10000 3200 50 0001 C CNN
1 10000 3200
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D5
U 1 1 5F6799FE
P 10300 3300
F 0 "D5" H 10300 2650 50 0000 C CNN
F 1 "1N4148" H 10300 3425 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10300 3125 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10300 3300 50 0001 C CNN
1 10300 3300
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D2
U 1 1 5F68D360
P 10000 3400
F 0 "D2" H 10000 2750 50 0000 C CNN
F 1 "1N4148" H 10000 3525 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10000 3225 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10000 3400 50 0001 C CNN
1 10000 3400
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D6
U 1 1 5F68D366
P 10300 3500
F 0 "D6" H 10300 2950 50 0000 C CNN
F 1 "1N4148" H 10300 3625 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10300 3325 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10300 3500 50 0001 C CNN
1 10300 3500
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D3
U 1 1 5F6A06A8
P 10000 3600
F 0 "D3" H 10000 3050 50 0000 C CNN
F 1 "1N4148" H 10000 3725 50 0001 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10000 3425 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10000 3600 50 0001 C CNN
1 10000 3600
1 0 0 -1
$EndComp
$Comp
L Diode:1N4148 D7
U 1 1 5F6A06AE
P 10300 3700
F 0 "D7" H 10300 3250 50 0000 C CNN
F 1 "1N4148" H 10300 4460 50 0000 C CNN
F 2 "Diode_THT:D_DO-35_SOD27_P7.62mm_Horizontal" H 10300 3525 50 0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/1N4148_1N4448.pdf" H 10300 3700 50 0001 C CNN
1 10300 3700
1 0 0 -1
$EndComp
Wire Wire Line
9750 3700 10150 3700
Wire Wire Line
10450 3700 11100 3700
Wire Wire Line
10150 3600 11100 3600
Wire Wire Line
9850 3600 9750 3600
Wire Wire Line
9750 3500 10150 3500
Wire Wire Line
9850 3400 9750 3400
Wire Wire Line
9750 3300 10150 3300
Wire Wire Line
9850 3200 9750 3200
Wire Wire Line
9750 3100 10200 3100
Wire Wire Line
9900 3000 9750 3000
Wire Wire Line
10200 3000 11100 3000
Wire Wire Line
10500 3100 11100 3100
Wire Wire Line
10150 3200 11100 3200
Wire Wire Line
10450 3300 11100 3300
Wire Wire Line
10150 3400 11100 3400
Wire Wire Line
10450 3500 11100 3500
Wire Wire Line
2700 7300 2650 7300
Wire Wire Line
2650 7300 2650 7700
Wire Wire Line
2650 7700 3200 7700
Connection ~ 5600 3100
Wire Wire Line
5600 3100 5600 3150
Wire Wire Line
5100 2650 4800 2650
Wire Wire Line
4800 2650 4800 4900
Wire Wire Line
5100 4900 4800 4900
Connection ~ 4800 4900
Wire Wire Line
5050 3100 5600 3100
Wire Wire Line
5050 3100 5050 2750
Wire Wire Line
5050 2750 5100 2750
Wire Wire Line
5600 5300 5600 5350
Wire Wire Line
5600 5350 5050 5350
Wire Wire Line
5050 5350 5050 5000
Wire Wire Line
5050 5000 5100 5000
Connection ~ 5600 5350
Wire Wire Line
5600 5350 5600 5400
Wire Wire Line
8650 3900 8650 7500
Wire Wire Line
3250 3200 3250 1750
Wire Wire Line
1500 3200 3250 3200
Wire Wire Line
3250 1750 4900 1750
Wire Wire Line
3400 1950 3400 3300
Wire Wire Line
3400 1950 4900 1950
Wire Wire Line
1500 3300 3400 3300
Wire Wire Line
3550 3400 3550 2150
Wire Wire Line
3550 2150 4900 2150
Wire Wire Line
1500 3400 3550 3400
Wire Wire Line
3700 2350 3700 3500
Wire Wire Line
3700 2350 4900 2350
Wire Wire Line
1500 3500 3700 3500
Wire Wire Line
3700 3600 3700 4000
Wire Wire Line
3700 4000 4900 4000
Wire Wire Line
3550 3700 3550 4200
Wire Wire Line
1500 3700 3550 3700
Wire Wire Line
3550 4200 4900 4200
Wire Wire Line
3400 3800 3400 4400
Wire Wire Line
1500 3800 3400 3800
Wire Wire Line
3400 4400 4900 4400
Wire Wire Line
3250 4000 3250 4600
Wire Wire Line
1500 4000 3250 4000
Wire Wire Line
3250 4600 4900 4600
Wire Wire Line
4700 8300 10400 8300
Wire Wire Line
1900 8000 10400 8000
Wire Wire Line
6100 4000 7950 4000
Wire Wire Line
6100 2050 8050 2050
Wire Wire Line
6100 1950 8150 1950
Wire Wire Line
6100 1850 8250 1850
Wire Wire Line
6100 4100 7850 4100
Wire Wire Line
6100 4200 7750 4200
Wire Wire Line
6100 4300 7650 4300
Wire Wire Line
8250 1850 8250 6750
Connection ~ 8250 1850
Wire Wire Line
8250 1850 8550 1850
Wire Wire Line
8150 1950 8150 6850
Wire Wire Line
8150 6850 10400 6850
Connection ~ 8150 1950
Wire Wire Line
8150 1950 8500 1950
Wire Wire Line
8050 2050 8050 6950
Wire Wire Line
8050 6950 10400 6950
Connection ~ 8050 2050
Wire Wire Line
8050 2050 8450 2050
Wire Wire Line
7950 4000 7950 7050
Wire Wire Line
7950 7050 10400 7050
Connection ~ 7950 4000
Wire Wire Line
7950 4000 8450 4000
Wire Wire Line
7850 4100 7850 7150
Wire Wire Line
7850 7150 10400 7150
Connection ~ 7850 4100
Wire Wire Line
7850 4100 8500 4100
Wire Wire Line
7750 4200 7750 7250
Wire Wire Line
7750 7250 10400 7250
Connection ~ 7750 4200
Wire Wire Line
7750 4200 8550 4200
Wire Wire Line
7650 4300 7650 7350
Wire Wire Line
7650 7350 10400 7350
Connection ~ 7650 4300
Wire Wire Line
7650 4300 8600 4300
Wire Wire Line
8350 1750 8600 1750
Connection ~ 8350 1750
Wire Wire Line
6100 1750 8350 1750
Wire Wire Line
8350 1750 8350 6650
Wire Wire Line
3700 7000 3900 7000
Wire Wire Line
3900 7000 3900 7100
Wire Wire Line
3900 7100 4100 7100
Wire Wire Line
4800 4900 4800 6600
Wire Wire Line
4700 6600 4800 6600
Wire Wire Line
3900 6600 4100 6600
$Comp
L 74xx:74LS04 U3
U 1 1 5EF5DD97
P 4400 6600
F 0 "U3" H 4450 6750 50 0000 C CNN
F 1 "74LS04" H 4450 6450 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4400 6600 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 4400 6600 50 0001 C CNN
1 4400 6600
1 0 0 -1
$EndComp
Wire Wire Line
4700 7100 7050 7100
Wire Wire Line
7050 7100 7050 7500
Wire Wire Line
7050 7500 8650 7500
$Comp
L Device:C C5
U 1 1 6064F317
P 4650 9400
F 0 "C5" H 4765 9446 50 0000 L CNN
F 1 "C" H 4765 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 4688 9250 50 0001 C CNN
F 3 "~" H 4650 9400 50 0001 C CNN
1 4650 9400
1 0 0 -1
$EndComp
$Comp
L Device:C C6
U 1 1 6064F31D
P 5050 9400
F 0 "C6" H 5165 9446 50 0000 L CNN
F 1 "C" H 5165 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 5088 9250 50 0001 C CNN
F 3 "~" H 5050 9400 50 0001 C CNN
1 5050 9400
1 0 0 -1
$EndComp
$Comp
L Device:C C7
U 1 1 6064F323
P 5450 9400
F 0 "C7" H 5565 9446 50 0000 L CNN
F 1 "C" H 5565 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 5488 9250 50 0001 C CNN
F 3 "~" H 5450 9400 50 0001 C CNN
1 5450 9400
1 0 0 -1
$EndComp
$Comp
L Device:C C8
U 1 1 6064F329
P 5850 9400
F 0 "C8" H 5965 9446 50 0000 L CNN
F 1 "C" H 5965 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 5888 9250 50 0001 C CNN
F 3 "~" H 5850 9400 50 0001 C CNN
1 5850 9400
1 0 0 -1
$EndComp
Wire Wire Line
4650 9250 5050 9250
Connection ~ 5050 9250
Wire Wire Line
5050 9250 5450 9250
Connection ~ 5450 9250
Wire Wire Line
5450 9250 5850 9250
Connection ~ 4650 9550
Wire Wire Line
4650 9550 5050 9550
Connection ~ 5050 9550
Wire Wire Line
5050 9550 5450 9550
Connection ~ 5450 9550
Wire Wire Line
5450 9550 5850 9550
Connection ~ 4650 9250
Wire Wire Line
4300 9250 4650 9250
Connection ~ 4300 9250
Wire Wire Line
4300 9550 4650 9550
Connection ~ 4300 9550
$Comp
L Device:C C9
U 1 1 606D38CE
P 6250 9400
F 0 "C9" H 6365 9446 50 0000 L CNN
F 1 "C" H 6365 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 6288 9250 50 0001 C CNN
F 3 "~" H 6250 9400 50 0001 C CNN
1 6250 9400
1 0 0 -1
$EndComp
Wire Wire Line
5850 9250 6250 9250
Wire Wire Line
5850 9550 6250 9550
Entry Wire Line
13000 7200 13100 7300
Entry Wire Line
13000 7100 13100 7200
Entry Wire Line
13000 7000 13100 7100
Entry Wire Line
13000 6900 13100 7000
Entry Wire Line
13000 6800 13100 6900
Entry Wire Line
13000 6700 13100 6800
Entry Wire Line
13000 7300 13100 7400
Text Label 13250 6800 0 50 ~ 0
Col1
Text Label 13250 6900 0 50 ~ 0
Col2
Text Label 13250 7000 0 50 ~ 0
Col3
Text Label 13250 7100 0 50 ~ 0
Col4
Text Label 13250 7200 0 50 ~ 0
Col5
Text Label 13250 7300 0 50 ~ 0
Col6
Text Label 13250 7400 0 50 ~ 0
Col7
Wire Bus Line
11200 5800 13000 5800
Connection ~ 11200 5800
Entry Wire Line
13000 6500 13100 6600
Entry Wire Line
13000 6600 13100 6700
Text Label 13250 6600 0 50 ~ 0
Row1
Text Label 13250 6700 0 50 ~ 0
Row7
Wire Wire Line
12100 7500 14300 7500
Wire Wire Line
12100 7700 14300 7700
Wire Wire Line
13100 6600 14300 6600
Wire Wire Line
13100 6700 14300 6700
Wire Wire Line
13100 6800 14300 6800
Wire Wire Line
13100 6900 14300 6900
Wire Wire Line
13100 7000 14300 7000
Wire Wire Line
13100 7100 14300 7100
Wire Wire Line
13100 7200 14300 7200
Wire Wire Line
13100 7300 14300 7300
Wire Wire Line
13100 7400 14300 7400
$Comp
L power:GND #PWR016
U 1 1 609E5C10
P 12800 8100
F 0 "#PWR016" H 12800 7850 50 0001 C CNN
F 1 "GND" H 12805 7927 50 0000 C CNN
F 2 "" H 12800 8100 50 0001 C CNN
F 3 "" H 12800 8100 50 0001 C CNN
1 12800 8100
1 0 0 -1
$EndComp
Wire Wire Line
12800 8100 12800 7600
Wire Wire Line
12800 7600 14300 7600
$Comp
L Connector_Generic:Conn_01x12 J4
U 1 1 60A345E3
P 14500 7100
F 0 "J4" H 14460 7720 50 0000 L CNN
F 1 "Sound" H 14180 6390 50 0000 L CNN
F 2 "" H 14500 7100 50 0001 C CNN
F 3 "~" H 14500 7100 50 0001 C CNN
1 14500 7100
1 0 0 -1
$EndComp
Wire Wire Line
3950 7700 4100 7700
$Comp
L 74xx:74LS04 U3
U 3 1 5EF73E4B
P 4400 7700
F 0 "U3" H 4450 7850 50 0000 C CNN
F 1 "74LS04" H 4500 7550 50 0000 C CNN
F 2 "Package_DIP:DIP-14_W7.62mm" H 4400 7700 50 0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS04" H 4400 7700 50 0001 C CNN
3 4400 7700
1 0 0 -1
$EndComp
Wire Wire Line
8250 6750 10400 6750
Wire Wire Line
8350 6650 10400 6650
$Sheet
S 10400 6250 1700 2400
U 6013A2E7
F0 "Sound" 50
F1 "Sound.sch" 50
F2 "KD0" I L 10400 6650 50
F3 "KD1" I L 10400 6750 50
F4 "KD2" I L 10400 6850 50
F5 "KD3" I L 10400 6950 50
F6 "KD4" I L 10400 7050 50
F7 "KD5" I L 10400 7150 50
F8 "KD6" I L 10400 7250 50
F9 "KD7" I L 10400 7350 50
F10 "NI" I L 10400 8000 50
F11 "SI" I L 10400 8300 50
F12 "Noise1" O R 12100 7700 50
F13 "Noise2" O R 12100 7500 50
F14 "SOUND_EN" I L 10400 7700 50
$EndSheet
Wire Wire Line
4700 7700 10400 7700
Entry Wire Line
12800 1500 12900 1600
Entry Wire Line
12800 1600 12900 1700
Text Label 13000 1600 0 50 ~ 0
Col0
Wire Bus Line
11200 1150 12800 1150
NoConn ~ 12500 3050
NoConn ~ 12500 3150
NoConn ~ 12500 3250
NoConn ~ 12500 3350
NoConn ~ 12500 3450
NoConn ~ 12500 3550
NoConn ~ 12500 3650
NoConn ~ 12500 3750
NoConn ~ 12000 3750
NoConn ~ 12000 3650
NoConn ~ 12000 3550
NoConn ~ 12500 2950
NoConn ~ 12500 2850
NoConn ~ 12500 1850
NoConn ~ 12500 1950
NoConn ~ 12500 2050
NoConn ~ 12500 2150
Text Label 13000 1700 0 50 ~ 0
Row0
$Sheet
S 13400 1200 1600 2200
U 5D770C6B
F0 "special_keys" 50
F1 "special_keys.sch" 50
F2 "~RESET" I R 15000 1700 50
F3 "Col0" I L 13400 1600 50
F4 "Row0" O L 13400 1700 50
F5 "ShiftLock_1" U L 13400 2250 50
F6 "ShiftLock_2" U L 13400 2350 50
F7 "ShiftLock_LED+" O L 13400 2450 50
F8 "ShiftLock_LED-" O L 13400 2550 50
F9 "Break_1" U L 13400 2650 50
F10 "Break_2" U L 13400 2750 50
$EndSheet
Wire Wire Line
12900 1600 13400 1600
Wire Wire Line
12900 1700 13400 1700
Wire Wire Line
12500 2250 13400 2250
Wire Wire Line
12500 2350 13400 2350
Wire Wire Line
12500 2450 13400 2450
Wire Wire Line
12500 2550 13400 2550
Wire Wire Line
12500 2650 13400 2650
Wire Wire Line
12500 2750 13400 2750
$Comp
L Device:C C10
U 1 1 61CE638B
P 6650 9400
F 0 "C10" H 6765 9446 50 0000 L CNN
F 1 "C" H 6765 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 6688 9250 50 0001 C CNN
F 3 "~" H 6650 9400 50 0001 C CNN
1 6650 9400
1 0 0 -1
$EndComp
Wire Wire Line
6250 9250 6650 9250
Wire Wire Line
6250 9550 6650 9550
$Comp
L Device:C C11
U 1 1 61CE6393
P 7050 9400
F 0 "C11" H 7165 9446 50 0000 L CNN
F 1 "C" H 7165 9355 50 0000 L CNN
F 2 "Capacitor_THT:CP_Radial_Tantal_D4.5mm_P2.50mm" H 7088 9250 50 0001 C CNN
F 3 "~" H 7050 9400 50 0001 C CNN
1 7050 9400
1 0 0 -1
$EndComp
Wire Wire Line
6650 9250 7050 9250
Wire Wire Line
6650 9550 7050 9550
Wire Bus Line
12800 1150 12800 1600
Wire Bus Line
7500 2450 7500 5800
Wire Bus Line
13000 5800 13000 7300
Wire Bus Line
11200 1150 11200 5800
$EndSCHEMATC
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