Building an FPGA from 74-series logic ICs. For fun and education.
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13 KiB

EESchema Schematic File Version 4
LIBS:ttl-fpga-cache
EELAYER 29 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 3
Title "DISCRETE TTL FPGA"
Date "2019-05-31"
Rev "02"
Comp "Markus Koch <markus@notsyncing.net>"
Comment1 "PCB"
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
8000 3350 7900 3350
Wire Wire Line
7900 3350 7900 3250
$Comp
L power:VCC #PWR04
U 1 1 5FF9C392
P 7900 3250
F 0 "#PWR04" H 7900 3100 50 0001 C CNN
F 1 "VCC" H 7917 3423 50 0000 C CNN
F 2 "" H 7900 3250 50 0001 C CNN
F 3 "" H 7900 3250 50 0001 C CNN
1 7900 3250
-1 0 0 -1
$EndComp
$Comp
L power:GNDD #PWR06
U 1 1 5FF9C39C
P 7800 3450
F 0 "#PWR06" H 7800 3200 50 0001 C CNN
F 1 "GNDD" V 7804 3340 50 0000 R CNN
F 2 "" H 7800 3450 50 0001 C CNN
F 3 "" H 7800 3450 50 0001 C CNN
1 7800 3450
0 1 -1 0
$EndComp
Wire Wire Line
7800 3450 8000 3450
Wire Wire Line
7200 3750 7200 3300
Wire Wire Line
8000 3750 7200 3750
Wire Wire Line
7300 3650 7300 3100
Wire Wire Line
8000 3650 7300 3650
Wire Wire Line
7400 3550 7400 3000
Wire Wire Line
8000 3550 7400 3550
Text Label 7550 4450 0 50 ~ 0
fabric_r3
Text Label 7550 4350 0 50 ~ 0
fabric_r2
Text Label 7550 4250 0 50 ~ 0
fabric_r1
Text Label 7550 4150 0 50 ~ 0
fabric_r0
Wire Wire Line
8000 4450 7550 4450
Wire Wire Line
8000 4350 7550 4350
Wire Wire Line
8000 4250 7550 4250
Wire Wire Line
8000 4150 7550 4150
Entry Wire Line
7550 4350 7450 4450
Entry Wire Line
7550 4250 7450 4350
Entry Wire Line
7550 4150 7450 4250
Entry Wire Line
7550 4450 7450 4550
Wire Bus Line
7450 4550 6800 4550
Wire Wire Line
4450 3300 4450 3250
Wire Wire Line
5000 3250 5000 3300
Wire Wire Line
5000 3300 5650 3300
Wire Wire Line
4450 3250 5000 3250
Connection ~ 4450 3300
Wire Wire Line
4450 3300 4550 3300
Wire Wire Line
4450 3100 4450 3050
Wire Wire Line
4450 3050 5000 3050
Wire Wire Line
5000 3050 5000 3100
Wire Wire Line
5000 3100 5550 3100
Connection ~ 4450 3100
Wire Wire Line
4450 3100 4550 3100
Wire Wire Line
4950 3000 4950 2950
Wire Wire Line
4950 2950 4450 2950
Wire Wire Line
4950 3000 5450 3000
Wire Wire Line
4450 3000 4550 3000
Wire Wire Line
4450 2950 4450 3000
Connection ~ 4450 3000
Wire Wire Line
4200 3400 4300 3400
Wire Wire Line
3900 3000 4450 3000
Wire Wire Line
4000 3100 4450 3100
Wire Wire Line
4100 3300 4450 3300
Entry Wire Line
3900 4250 3800 4150
Entry Wire Line
3900 4550 3800 4450
Entry Wire Line
3900 4450 3800 4350
Entry Wire Line
3900 4350 3800 4250
Wire Wire Line
3350 4150 3800 4150
Wire Wire Line
3350 4250 3800 4250
Wire Wire Line
3350 4350 3800 4350
Wire Wire Line
3350 4450 3800 4450
Text Label 3800 4150 2 50 ~ 0
fabric_l0
Text Label 3800 4250 2 50 ~ 0
fabric_l1
Text Label 3800 4350 2 50 ~ 0
fabric_l2
Text Label 3800 4450 2 50 ~ 0
fabric_l3
Wire Wire Line
3350 3550 3900 3550
Wire Wire Line
3900 3550 3900 3000
Wire Wire Line
3350 3650 4000 3650
Wire Wire Line
4000 3650 4000 3100
Wire Wire Line
3350 3750 4100 3750
Wire Wire Line
4100 3750 4100 3300
Wire Wire Line
3350 3850 4200 3850
Wire Wire Line
4200 3850 4200 3400
Wire Wire Line
3550 3450 3350 3450
$Comp
L power:GNDD #PWR05
U 1 1 5FE8BD0F
P 3550 3450
F 0 "#PWR05" H 3550 3200 50 0001 C CNN
F 1 "GNDD" V 3554 3340 50 0000 R CNN
F 2 "" H 3550 3450 50 0001 C CNN
F 3 "" H 3550 3450 50 0001 C CNN
1 3550 3450
0 -1 -1 0
$EndComp
$Comp
L power:VCC #PWR03
U 1 1 5FE8B843
P 3450 3250
F 0 "#PWR03" H 3450 3100 50 0001 C CNN
F 1 "VCC" H 3467 3423 50 0000 C CNN
F 2 "" H 3450 3250 50 0001 C CNN
F 3 "" H 3450 3250 50 0001 C CNN
1 3450 3250
1 0 0 -1
$EndComp
Wire Wire Line
3450 3350 3450 3250
Wire Wire Line
3350 3350 3450 3350
Wire Wire Line
6800 3400 7100 3400
Text Label 3950 4550 0 50 ~ 0
fabric_l[3..0]
Wire Wire Line
7100 3400 7100 3850
Wire Wire Line
7100 3850 8000 3850
Wire Wire Line
3350 3950 8000 3950
Text Notes 3100 4500 2 63 ~ 0
VCC\nGND\nCLK\nRST\nSCK\nMOSI\nMISO\nMOSI_D\nI0\nI1\nI2\nI3
Text Notes 8250 4500 0 63 ~ 0
VCC\nGND\nCLK\nRST\nSCK\nmiso\nmosi\n\nI0\nI1\nI2\nI3
Wire Wire Line
5250 5600 5250 5550
$Comp
L power:VCC #PWR012
U 1 1 60046AFF
P 5250 5550
F 0 "#PWR012" H 5250 5400 50 0001 C CNN
F 1 "VCC" H 5150 5650 50 0000 C CNN
F 2 "" H 5250 5550 50 0001 C CNN
F 3 "" H 5250 5550 50 0001 C CNN
1 5250 5550
1 0 0 -1
$EndComp
$Comp
L power:GNDD #PWR09
U 1 1 60046AF5
P 5200 5200
F 0 "#PWR09" H 5200 4950 50 0001 C CNN
F 1 "GNDD" H 5204 5045 50 0000 C CNN
F 2 "" H 5200 5200 50 0001 C CNN
F 3 "" H 5200 5200 50 0001 C CNN
1 5200 5200
1 0 0 -1
$EndComp
Wire Wire Line
5200 5150 5350 5150
Wire Wire Line
5350 5150 5350 5600
Text Label 6350 5150 3 50 ~ 0
fabric_b3
Text Label 6250 5150 3 50 ~ 0
fabric_b2
Text Label 6150 5150 3 50 ~ 0
fabric_b1
Text Label 6050 5150 3 50 ~ 0
fabric_b0
Wire Wire Line
6350 5600 6350 5150
Wire Wire Line
6250 5600 6250 5150
Wire Wire Line
6150 5600 6150 5150
Wire Wire Line
6050 5600 6050 5150
Entry Wire Line
6250 5150 6350 5050
Entry Wire Line
6150 5150 6250 5050
Entry Wire Line
6050 5150 6150 5050
Entry Wire Line
6350 5150 6450 5050
$Sheet
S 4550 2700 2250 2250
U 5D77FDBE
F0 "LogicBlock" 50
F1 "logic_block.sch" 50
F2 "fabric_b[3..0]" I R 6800 4850 50
F3 "fabric_t[3..0]" I R 6800 2800 50
F4 "fabric_l[3..0]" I L 4550 4550 50
F5 "fabric_r[3..0]" I R 6800 4550 50
F6 "rst_n" I L 4550 3100 50
F7 "clk" I L 4550 3000 50
F8 "isp_mosi" I L 4550 3400 50
F9 "isp_sck" I L 4550 3300 50
F10 "isp_miso" O R 6800 3400 50
$EndSheet
Wire Bus Line
6800 4850 6900 4850
Wire Bus Line
6900 4850 6900 5050
Wire Wire Line
5450 5600 5450 3000
Connection ~ 5450 3000
Wire Wire Line
5450 3000 7400 3000
Wire Wire Line
5550 5600 5550 3100
Connection ~ 5550 3100
Wire Wire Line
5550 3100 7300 3100
Wire Wire Line
5650 5600 5650 3300
Connection ~ 5650 3300
Wire Bus Line
3900 4550 4550 4550
Wire Wire Line
5750 4050 5750 5600
Wire Wire Line
3350 4050 5750 4050
Text Notes 6400 5850 3 63 ~ 0
VCC\nGND\nCLK\nRST\nSCK\nMOSI_D\n\n\nI0\nI1\nI2\nI3
$Comp
L Connector:Conn_01x12_Female J4
U 1 1 60090C3D
P 5750 5800
F 0 "J4" H 5700 6400 50 0000 C CNN
F 1 "Bottom" V 5650 5050 50 0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Horizontal" H 5750 5800 50 0001 C CNN
F 3 "~" H 5750 5800 50 0001 C CNN
1 5750 5800
0 -1 1 0
$EndComp
Text Notes 6400 1800 1 63 ~ 0
VCC\nGND\nCLK\nRST\nSCK\nMOSI_D\n\n\nI0\nI1\nI2\nI3
$Comp
L power:VCC #PWR01
U 1 1 600A7963
P 5150 2150
F 0 "#PWR01" H 5150 2000 50 0001 C CNN
F 1 "VCC" H 5250 2200 50 0000 C CNN
F 2 "" H 5150 2150 50 0001 C CNN
F 3 "" H 5150 2150 50 0001 C CNN
1 5150 2150
-1 0 0 -1
$EndComp
Wire Wire Line
5250 2250 5150 2250
Wire Wire Line
5250 2050 5250 2250
Text Label 6350 2500 1 50 ~ 0
fabric_t3
Text Label 6250 2500 1 50 ~ 0
fabric_t2
Text Label 6150 2500 1 50 ~ 0
fabric_t1
Text Label 6050 2500 1 50 ~ 0
fabric_t0
Wire Wire Line
6350 2050 6350 2500
Wire Wire Line
6250 2050 6250 2500
Wire Wire Line
6150 2050 6150 2500
Wire Wire Line
6050 2050 6050 2500
Entry Wire Line
6250 2500 6350 2600
Entry Wire Line
6150 2500 6250 2600
Entry Wire Line
6050 2500 6150 2600
Entry Wire Line
6350 2500 6450 2600
Wire Bus Line
6900 2800 6800 2800
Wire Bus Line
6900 2600 6900 2800
Text Label 6250 5050 0 50 ~ 0
fabric_b[3..0]
Text Label 6450 2600 0 50 ~ 0
fabric_t[3..0]
Wire Wire Line
5450 2050 5450 3000
Wire Wire Line
5550 3100 5550 2050
Wire Wire Line
5650 3300 7200 3300
Wire Wire Line
5650 3300 5650 2050
Wire Notes Line
6400 3400 4950 3400
Wire Notes Line
6400 3400 6300 3350
Wire Notes Line
6400 3400 6300 3450
Text Label 6900 4550 0 50 ~ 0
fabric_r[3..0]
Wire Wire Line
5750 2050 5750 2500
Wire Wire Line
5750 2500 4300 2500
Wire Wire Line
4300 2500 4300 3400
Connection ~ 4300 3400
Wire Wire Line
4300 3400 4550 3400
Wire Notes Line
8550 3850 8650 3850
Wire Notes Line
8550 3950 8600 3900
Wire Notes Line
8550 3950 8600 4000
Wire Notes Line
8650 3950 8550 3950
Wire Notes Line
8650 3850 8650 3950
Wire Notes Line
2850 3950 2600 3950
Wire Notes Line
2600 3950 2600 4050
Wire Notes Line
2600 4050 2700 4050
Wire Notes Line
2650 4000 2700 4050
Wire Notes Line
2700 4050 2650 4100
Wire Notes Line
2450 3850 2850 3850
Wire Notes Line
2850 3850 2800 3800
Wire Notes Line
2850 3850 2800 3900
Wire Notes Line
5750 6200 5750 6350
Wire Notes Line
5750 6350 5700 6300
Wire Notes Line
5750 6350 5800 6300
Wire Notes Line
5750 1300 5750 1450
Wire Notes Line
5750 1450 5700 1400
Wire Notes Line
5750 1450 5800 1400
Text Notes 1900 3850 0 50 ~ 0
PROGRAMMER
Wire Notes Line
2850 3750 2450 3750
Wire Notes Line
2850 3750 2800 3700
Wire Notes Line
2850 3750 2800 3800
Wire Notes Line
2450 3650 2450 3950
Wire Notes Line
2450 3950 1850 3950
Wire Notes Line
1850 3950 1850 3650
Wire Notes Line
1850 3650 2450 3650
Wire Wire Line
5850 5600 5850 2050
Wire Wire Line
5350 2250 5350 2050
$Comp
L power:GNDD #PWR02
U 1 1 600A7959
P 5350 2250
F 0 "#PWR02" H 5350 2000 50 0001 C CNN
F 1 "GNDD" H 5354 2095 50 0000 C CNN
F 2 "" H 5350 2250 50 0001 C CNN
F 3 "" H 5350 2250 50 0001 C CNN
1 5350 2250
-1 0 0 -1
$EndComp
Wire Wire Line
5150 2250 5150 2150
Wire Wire Line
5200 5150 5200 5200
NoConn ~ 5950 2050
NoConn ~ 8000 4050
NoConn ~ 5950 5600
Wire Notes Line
3150 1850 8200 1850
Wire Notes Line
8200 1850 8200 5800
Wire Notes Line
8200 5800 3150 5800
Wire Notes Line
3150 5800 3150 1850
$Comp
L Connector:Conn_01x12_Male J1
U 1 1 5CF30EFB
P 5750 1850
F 0 "J1" H 5850 2450 50 0000 R CNN
F 1 "Top" V 5850 1200 50 0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Horizontal" H 5750 1850 50 0001 C CNN
F 3 "~" H 5750 1850 50 0001 C CNN
1 5750 1850
0 -1 1 0
$EndComp
$Comp
L Connector:Conn_01x12_Male J3
U 1 1 5CF23FEF
P 8200 3850
F 0 "J3" H 8300 4450 50 0000 R CNN
F 1 "Right" H 8400 3200 50 0000 R CNN
F 2 "Connector_PinHeader_2.54mm:PinHeader_1x12_P2.54mm_Horizontal" H 8200 3850 50 0001 C CNN
F 3 "~" H 8200 3850 50 0001 C CNN
1 8200 3850
-1 0 0 -1
$EndComp
$Comp
L Connector:Conn_01x12_Female J2
U 1 1 5FE88CA2
P 3150 3850
F 0 "J2" H 3100 4450 50 0000 C CNN
F 1 "Left" H 3050 3200 50 0000 C CNN
F 2 "Connector_PinSocket_2.54mm:PinSocket_1x12_P2.54mm_Horizontal" H 3150 3850 50 0001 C CNN
F 3 "~" H 3150 3850 50 0001 C CNN
1 3150 3850
-1 0 0 -1
$EndComp
$Comp
L Device:CP C1
U 1 1 5CF70F0E
P 3550 5150
F 0 "C1" H 3668 5196 50 0000 L CNN
F 1 "10u" H 3668 5105 50 0000 L CNN
F 2 "Capacitor_SMD:C_1206_3216Metric" H 3588 5000 50 0001 C CNN
F 3 "~" H 3550 5150 50 0001 C CNN
1 3550 5150
1 0 0 -1
$EndComp
$Comp
L power:VCC #PWR07
U 1 1 5CF715DB
P 3550 4900
F 0 "#PWR07" H 3550 4750 50 0001 C CNN
F 1 "VCC" H 3567 5073 50 0000 C CNN
F 2 "" H 3550 4900 50 0001 C CNN
F 3 "" H 3550 4900 50 0001 C CNN
1 3550 4900
1 0 0 -1
$EndComp
Wire Wire Line
3550 5000 3550 4900
$Comp
L Device:LED D?
U 1 1 5CFB92E6
P 4150 5200
AR Path="/5D77FDBE/5D7AF013/5CFB92E6" Ref="D?" Part="1"
AR Path="/5D77FDBE/5CFB92E6" Ref="D?" Part="1"
AR Path="/5CFB92E6" Ref="D1" Part="1"
F 0 "D1" V 4200 5100 50 0000 R CNN
F 1 "PWR" V 4100 5100 50 0000 R CNN
F 2 "LED_SMD:LED_0603_1608Metric" H 4150 5200 50 0001 C CNN
F 3 "~" H 4150 5200 50 0001 C CNN
1 4150 5200
0 -1 -1 0
$EndComp
$Comp
L Device:R R?
U 1 1 5CFB92EC
P 3950 5000
AR Path="/5D77FDBE/5D7AF013/5CFB92EC" Ref="R?" Part="1"
AR Path="/5D77FDBE/5CFB92EC" Ref="R?" Part="1"
AR Path="/5CFB92EC" Ref="R1" Part="1"
F 0 "R1" H 4020 5046 50 0000 L CNN
F 1 "470" H 4020 4955 50 0000 L CNN
F 2 "Resistor_SMD:R_0603_1608Metric" V 3880 5000 50 0001 C CNN
F 3 "~" H 3950 5000 50 0001 C CNN
1 3950 5000
0 -1 -1 0
$EndComp
$Comp
L power:VCC #PWR08
U 1 1 5CFBED78
P 3750 4900
F 0 "#PWR08" H 3750 4750 50 0001 C CNN
F 1 "VCC" H 3767 5073 50 0000 C CNN
F 2 "" H 3750 4900 50 0001 C CNN
F 3 "" H 3750 4900 50 0001 C CNN
1 3750 4900
1 0 0 -1
$EndComp
Wire Wire Line
3800 5000 3750 5000
Wire Wire Line
3750 5000 3750 4900
Wire Wire Line
4100 5000 4150 5000
Wire Wire Line
4150 5000 4150 5050
Wire Wire Line
3550 5400 3550 5300
$Comp
L power:GNDD #PWR010
U 1 1 5CF71B50
P 3550 5400
F 0 "#PWR010" H 3550 5150 50 0001 C CNN
F 1 "GNDD" V 3554 5290 50 0000 R CNN
F 2 "" H 3550 5400 50 0001 C CNN
F 3 "" H 3550 5400 50 0001 C CNN
1 3550 5400
1 0 0 -1
$EndComp
Wire Wire Line
4150 5350 4150 5400
$Comp
L power:GNDD #PWR011
U 1 1 5CFBCC03
P 4150 5400
F 0 "#PWR011" H 4150 5150 50 0001 C CNN
F 1 "GNDD" V 4154 5290 50 0000 R CNN
F 2 "" H 4150 5400 50 0001 C CNN
F 3 "" H 4150 5400 50 0001 C CNN
1 4150 5400
1 0 0 -1
$EndComp
Wire Bus Line
7450 4250 7450 4550
Wire Bus Line
3900 4250 3900 4550
Wire Bus Line
6150 2600 6900 2600
Wire Bus Line
6150 5050 6900 5050
$EndSCHEMATC