279 lines
6.6 KiB
Plaintext
279 lines
6.6 KiB
Plaintext
EESchema Schematic File Version 4
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EELAYER 30 0
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EELAYER END
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$Descr A4 11693 8268
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encoding utf-8
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Sheet 3 3
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Title "TashTwenty Tiny"
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Date "2022-03-20"
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Rev "1.0"
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Comp "Lostwave"
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Comment1 "https://68kmla.org"
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Comment2 "https://68kmla.org/bb/index.php?threads/tashtwenty-single-chip-dcd-hard-disk-20-interface.39357/"
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Comment3 "https://github.com/lampmerchant/tashtwenty"
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Comment4 ""
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$EndDescr
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$Comp
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L power:+12V #PWR0103
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U 1 1 61A7DDE6
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P 1500 1500
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F 0 "#PWR0103" H 1500 1350 50 0001 C CNN
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F 1 "+12V" H 1515 1673 50 0000 C CNN
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F 2 "" H 1500 1500 50 0001 C CNN
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F 3 "" H 1500 1500 50 0001 C CNN
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1 1500 1500
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1 0 0 -1
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$EndComp
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$Comp
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L Device:LED D1
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U 1 1 61A7E10E
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P 1500 2250
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F 0 "D1" V 1539 2132 50 0000 R CNN
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F 1 "LED" V 1448 2132 50 0000 R CNN
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F 2 "LED_THT:LED_D5.0mm_Horizontal_O3.81mm_Z3.0mm" H 1500 2250 50 0001 C CNN
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F 3 "~" H 1500 2250 50 0001 C CNN
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1 1500 2250
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0 -1 -1 0
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$EndComp
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$Comp
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L power:GND #PWR0119
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U 1 1 61A7EA4F
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P 1500 2500
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F 0 "#PWR0119" H 1500 2250 50 0001 C CNN
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F 1 "GND" H 1505 2327 50 0000 C CNN
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F 2 "" H 1500 2500 50 0001 C CNN
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F 3 "" H 1500 2500 50 0001 C CNN
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1 1500 2500
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1 0 0 -1
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$EndComp
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$Comp
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L Device:R R8
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U 1 1 61A7F7FD
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P 1500 1800
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F 0 "R8" H 1570 1846 50 0000 L CNN
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F 1 "1200" H 1570 1755 50 0000 L CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 1430 1800 50 0001 C CNN
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F 3 "~" H 1500 1800 50 0001 C CNN
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1 1500 1800
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1 0 0 -1
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$EndComp
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Wire Wire Line
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1500 2100 1500 1950
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Wire Wire Line
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1500 1650 1500 1500
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Wire Wire Line
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1500 2500 1500 2400
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$Comp
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L 74xx:74LS08 U2
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U 2 1 61A7FDAB
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P 6400 1500
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F 0 "U2" H 6400 1825 50 0000 C CNN
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F 1 "74ACT08" H 6400 1734 50 0000 C CNN
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F 2 "Package_DIP:DIP-14_W7.62mm" H 6400 1500 50 0001 C CNN
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F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 6400 1500 50 0001 C CNN
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2 6400 1500
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1 0 0 -1
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$EndComp
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$Comp
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L 74xx:74LS08 U2
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U 3 1 61A839C6
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P 6400 2500
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F 0 "U2" H 6400 2825 50 0000 C CNN
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F 1 "74ACT08" H 6400 2734 50 0000 C CNN
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F 2 "Package_DIP:DIP-14_W7.62mm" H 6400 2500 50 0001 C CNN
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F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 6400 2500 50 0001 C CNN
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3 6400 2500
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1 0 0 -1
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$EndComp
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$Comp
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L Device:LED_Dual_ACA D2
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U 1 1 61A8E744
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P 7650 2000
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F 0 "D2" H 7650 1653 50 0000 C CNN
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F 1 "LED_Dual_ACA" H 7650 1744 50 0000 C CNN
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F 2 "LED_THT:LED_D5.0mm-3_Horizontal_O3.81mm_Z3.0mm" H 7650 2000 50 0001 C CNN
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F 3 "~" H 7650 2000 50 0001 C CNN
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1 7650 2000
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-1 0 0 1
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$EndComp
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$Comp
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L Device:R R11
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U 1 1 61A90834
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P 7000 2500
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F 0 "R11" V 6793 2500 50 0000 C CNN
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F 1 "330" V 6884 2500 50 0000 C CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 6930 2500 50 0001 C CNN
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F 3 "~" H 7000 2500 50 0001 C CNN
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1 7000 2500
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0 1 1 0
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$EndComp
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$Comp
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L Device:R R10
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U 1 1 61A90C1F
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P 7000 1500
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F 0 "R10" V 6793 1500 50 0000 C CNN
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F 1 "330" V 6884 1500 50 0000 C CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 6930 1500 50 0001 C CNN
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F 3 "~" H 7000 1500 50 0001 C CNN
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1 7000 1500
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0 1 1 0
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$EndComp
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Wire Wire Line
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6700 1500 6850 1500
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Wire Wire Line
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6700 2500 6850 2500
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Wire Wire Line
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7350 1900 7250 1900
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Wire Wire Line
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7250 1900 7250 1500
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Wire Wire Line
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7250 1500 7150 1500
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Wire Wire Line
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7150 2500 7250 2500
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Wire Wire Line
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7250 2500 7250 2100
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Wire Wire Line
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7250 2100 7350 2100
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Wire Wire Line
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8100 2000 7950 2000
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Text GLabel 4300 1800 0 50 Input ~ 0
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RD
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Text GLabel 6000 2600 0 50 Input ~ 0
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WR
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Wire Wire Line
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6000 2600 6100 2600
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$Comp
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L 74xx:74LS08 U2
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U 1 1 61A935ED
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P 6400 3500
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F 0 "U2" H 6400 3825 50 0000 C CNN
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F 1 "74ACT08" H 6400 3734 50 0000 C CNN
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F 2 "Package_DIP:DIP-14_W7.62mm" H 6400 3500 50 0001 C CNN
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F 3 "http://www.ti.com/lit/gpn/sn74LS08" H 6400 3500 50 0001 C CNN
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1 6400 3500
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1 0 0 -1
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$EndComp
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Text GLabel 6000 3600 0 50 Input ~ 0
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~ENABLE
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Wire Wire Line
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6000 3600 6100 3600
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Wire Wire Line
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4300 1800 4450 1800
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Wire Wire Line
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5750 2300 5750 2400
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Wire Wire Line
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5750 1900 5750 2000
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$Comp
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L power:+5V #PWR0121
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U 1 1 61A97370
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P 5750 1900
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F 0 "#PWR0121" H 5750 1750 50 0001 C CNN
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F 1 "+5V" H 5765 2073 50 0000 C CNN
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F 2 "" H 5750 1900 50 0001 C CNN
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F 3 "" H 5750 1900 50 0001 C CNN
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1 5750 1900
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1 0 0 -1
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$EndComp
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$Comp
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L Device:R R9
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U 1 1 61A96CB0
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P 5750 2150
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F 0 "R9" H 5820 2196 50 0000 L CNN
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F 1 "10k" H 5820 2105 50 0000 L CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 5680 2150 50 0001 C CNN
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F 3 "~" H 5750 2150 50 0001 C CNN
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1 5750 2150
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1 0 0 -1
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$EndComp
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$Comp
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L power:+5V #PWR0124
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U 1 1 61AB25B5
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P 5250 900
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F 0 "#PWR0124" H 5250 750 50 0001 C CNN
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F 1 "+5V" H 5265 1073 50 0000 C CNN
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F 2 "" H 5250 900 50 0001 C CNN
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F 3 "" H 5250 900 50 0001 C CNN
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1 5250 900
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1 0 0 -1
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$EndComp
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$Comp
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L Device:R R13
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U 1 1 61AB25BF
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P 5250 1250
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F 0 "R13" H 5320 1296 50 0000 L CNN
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F 1 "10k" H 5320 1205 50 0000 L CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 5180 1250 50 0001 C CNN
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F 3 "~" H 5250 1250 50 0001 C CNN
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1 5250 1250
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1 0 0 -1
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$EndComp
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$Comp
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L Transistor_BJT:BC337 Q1
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U 1 1 61AB9694
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P 5150 1800
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F 0 "Q1" H 5341 1846 50 0000 L CNN
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F 1 "BC337" H 5341 1755 50 0000 L CNN
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F 2 "Package_TO_SOT_THT:TO-92_Inline" H 5350 1725 50 0001 L CIN
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F 3 "https://diotec.com/tl_files/diotec/files/pdf/datasheets/bc337.pdf" H 5150 1800 50 0001 L CNN
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1 5150 1800
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1 0 0 -1
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$EndComp
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$Comp
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L Device:R R12
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U 1 1 61ABBEBE
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P 4600 1800
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F 0 "R12" V 4393 1800 50 0000 C CNN
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F 1 "10k" V 4484 1800 50 0000 C CNN
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F 2 "Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal" V 4530 1800 50 0001 C CNN
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F 3 "~" H 4600 1800 50 0001 C CNN
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1 4600 1800
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0 1 1 0
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$EndComp
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Wire Wire Line
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4750 1800 4950 1800
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$Comp
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L power:GND #PWR0125
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U 1 1 61ABD1D4
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P 5250 2100
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F 0 "#PWR0125" H 5250 1850 50 0001 C CNN
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F 1 "GND" H 5255 1927 50 0000 C CNN
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F 2 "" H 5250 2100 50 0001 C CNN
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F 3 "" H 5250 2100 50 0001 C CNN
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1 5250 2100
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1 0 0 -1
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$EndComp
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Wire Wire Line
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5250 2100 5250 2000
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Wire Wire Line
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5250 1600 5250 1500
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Connection ~ 5250 1500
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Wire Wire Line
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5250 900 5250 1100
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Wire Wire Line
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5250 1500 5750 1500
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Wire Wire Line
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5250 1500 5250 1400
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Wire Wire Line
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8100 2000 8100 3500
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Wire Wire Line
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5750 1600 5750 1500
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Wire Wire Line
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5750 1600 6100 1600
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Wire Wire Line
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5750 1500 5750 1400
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Wire Wire Line
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5750 1400 6100 1400
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Connection ~ 5750 1500
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Wire Wire Line
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5750 3400 5750 2400
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Wire Wire Line
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5750 2400 6100 2400
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Connection ~ 5750 2400
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Wire Wire Line
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5750 3400 6100 3400
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Wire Wire Line
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6700 3500 8100 3500
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Text Notes 6600 3950 0 50 Italic 0
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This gate will sink the led when /ENABLE is low.\n\nRead is /ENABLE low AND RD low\nWrite is /ENABLE low and WR high
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$EndSCHEMATC
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