EESchema Schematic File Version 2
LIBS:adc-dac
LIBS:memory
LIBS:xilinx
LIBS:microcontrollers
LIBS:dsp
LIBS:microchip
LIBS:analog_switches
LIBS:motorola
LIBS:texas
LIBS:intel
LIBS:audio
LIBS:interface
LIBS:digital-audio
LIBS:philips
LIBS:display
LIBS:cypress
LIBS:siliconi
LIBS:opto
LIBS:atmel
LIBS:contrib
LIBS:power
LIBS:eSim_Plot
LIBS:transistors
LIBS:conn
LIBS:eSim_User
LIBS:regul
LIBS:74xx
LIBS:cmos4000
LIBS:eSim_Analog
LIBS:eSim_Devices
LIBS:eSim_Digital
LIBS:eSim_Hybrid
LIBS:eSim_Miscellaneous
LIBS:eSim_Power
LIBS:eSim_Sources
LIBS:eSim_Subckt
LIBS:eSim_Nghdl
LIBS:eSim_Ngveri
LIBS:eSim_SKY130
LIBS:eSim_SKY130_Subckts
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L tristate_buffer_active_low U8
U 1 1 67FA2026
P 3625 3175
F 0 "U8" H 3550 3000 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 3950 3050 31  0000 C CNN
F 2 "" H 3625 3275 60  0000 C CNN
F 3 "" H 3625 3275 60  0000 C CNN
	1    3625 3175
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U4
U 1 1 67FA20A9
P 3375 2350
F 0 "U4" H 3275 2175 31  0000 C CNN
F 1 "buffer_4pin" H 3550 2100 39  0000 C CNN
F 2 "" H 3525 2375 60  0000 C CNN
F 3 "" H 3525 2375 60  0000 C CNN
	1    3375 2350
	1    0    0    -1  
$EndComp
$Comp
L d_buffer U2
U 1 1 67FA2105
P 1900 1275
F 0 "U2" H 1900 1225 60  0000 C CNN
F 1 "d_buffer" H 1900 1325 60  0000 C CNN
F 2 "" H 1900 1275 60  0000 C CNN
F 3 "" H 1900 1275 60  0000 C CNN
	1    1900 1275
	1    0    0    -1  
$EndComp
$Comp
L d_buffer U3
U 1 1 67FA213B
P 1900 1800
F 0 "U3" H 1900 1750 60  0000 C CNN
F 1 "d_buffer" H 1900 1850 60  0000 C CNN
F 2 "" H 1900 1800 60  0000 C CNN
F 3 "" H 1900 1800 60  0000 C CNN
	1    1900 1800
	1    0    0    -1  
$EndComp
Wire Wire Line
	3350 2000 4550 2000
Wire Wire Line
	1775 2375 3000 2375
Wire Wire Line
	2550 1800 2600 1800
Wire Wire Line
	2600 1800 2600 7225
Wire Wire Line
	2600 2775 3625 2775
Wire Wire Line
	3000 3125 2850 3125
Wire Wire Line
	2850 3125 2850 2375
Connection ~ 2850 2375
Wire Wire Line
	4075 3150 4775 3150
Wire Wire Line
	3925 2375 4175 2375
Wire Wire Line
	4175 2375 4175 3150
Connection ~ 4175 3150
$Comp
L tristate_buffer_active_low U9
U 1 1 67FA23A9
P 3675 4675
F 0 "U9" H 3600 4500 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 4000 4550 31  0000 C CNN
F 2 "" H 3675 4775 60  0000 C CNN
F 3 "" H 3675 4775 60  0000 C CNN
	1    3675 4675
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U5
U 1 1 67FA23AF
P 3425 3850
F 0 "U5" H 3325 3675 31  0000 C CNN
F 1 "buffer_4pin" H 3600 3600 39  0000 C CNN
F 2 "" H 3575 3875 60  0000 C CNN
F 3 "" H 3575 3875 60  0000 C CNN
	1    3425 3850
	1    0    0    -1  
$EndComp
Wire Wire Line
	2600 4275 3675 4275
Wire Wire Line
	2200 3875 3050 3875
Wire Wire Line
	2200 3875 2200 3900
Wire Wire Line
	3050 4625 2800 4625
Wire Wire Line
	2800 4625 2800 3875
Connection ~ 2800 3875
Wire Wire Line
	4125 4650 4675 4650
Wire Wire Line
	3975 3875 4275 3875
Wire Wire Line
	4275 3875 4275 4650
Connection ~ 4275 4650
$Comp
L tristate_buffer_active_low U10
U 1 1 67FA2560
P 3775 6175
F 0 "U10" H 3700 6000 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 4100 6050 31  0000 C CNN
F 2 "" H 3775 6275 60  0000 C CNN
F 3 "" H 3775 6275 60  0000 C CNN
	1    3775 6175
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U6
U 1 1 67FA2566
P 3525 5350
F 0 "U6" H 3425 5175 31  0000 C CNN
F 1 "buffer_4pin" H 3700 5100 39  0000 C CNN
F 2 "" H 3675 5375 60  0000 C CNN
F 3 "" H 3675 5375 60  0000 C CNN
	1    3525 5350
	1    0    0    -1  
$EndComp
Wire Wire Line
	2600 5775 3775 5775
Wire Wire Line
	2300 5375 3150 5375
Wire Wire Line
	2300 5375 2300 5400
Wire Wire Line
	3150 6125 2900 6125
Wire Wire Line
	2900 6125 2900 5375
Connection ~ 2900 5375
Wire Wire Line
	4225 6150 4775 6150
Wire Wire Line
	4075 5375 4375 5375
Wire Wire Line
	4375 5375 4375 6150
Connection ~ 4375 6150
$Comp
L tristate_buffer_active_low U11
U 1 1 67FA26AE
P 3775 7625
F 0 "U11" H 3700 7450 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 4100 7500 31  0000 C CNN
F 2 "" H 3775 7725 60  0000 C CNN
F 3 "" H 3775 7725 60  0000 C CNN
	1    3775 7625
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U7
U 1 1 67FA26B4
P 3525 6800
F 0 "U7" H 3425 6625 31  0000 C CNN
F 1 "buffer_4pin" H 3700 6550 39  0000 C CNN
F 2 "" H 3675 6825 60  0000 C CNN
F 3 "" H 3675 6825 60  0000 C CNN
	1    3525 6800
	1    0    0    -1  
$EndComp
Wire Wire Line
	2600 7225 3775 7225
Wire Wire Line
	2300 6825 3150 6825
Wire Wire Line
	2300 6825 2300 6850
Wire Wire Line
	3150 7575 2900 7575
Wire Wire Line
	2900 7575 2900 6825
Connection ~ 2900 6825
Wire Wire Line
	4225 7600 4775 7600
Wire Wire Line
	4075 6825 4375 6825
Wire Wire Line
	4375 6825 4375 7600
Connection ~ 4375 7600
Connection ~ 2600 2775
Connection ~ 2600 4275
Connection ~ 2600 5775
Wire Wire Line
	2550 1275 4550 1275
Wire Wire Line
	4550 1275 4550 6450
Wire Wire Line
	4550 6450 3500 6450
Connection ~ 4550 2000
Wire Wire Line
	3500 5000 4550 5000
Connection ~ 4550 5000
Wire Wire Line
	3400 3500 4550 3500
Connection ~ 4550 3500
Wire Wire Line
	1400 1275 1025 1275
Wire Wire Line
	1400 1800 1050 1800
$Comp
L PORT U1
U 1 1 67FA2EEE
P 775 1275
F 0 "U1" H 825 1375 30  0000 C CNN
F 1 "PORT" H 775 1275 30  0000 C CNN
F 2 "" H 775 1275 60  0000 C CNN
F 3 "" H 775 1275 60  0000 C CNN
	1    775  1275
	1    0    0    -1  
$EndComp
$Comp
L tristate_buffer_active_low U16
U 1 1 67FA35AF
P 7450 2450
F 0 "U16" H 7375 2275 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 7775 2325 31  0000 C CNN
F 2 "" H 7450 2550 60  0000 C CNN
F 3 "" H 7450 2550 60  0000 C CNN
	1    7450 2450
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U12
U 1 1 67FA35B5
P 7200 1625
F 0 "U12" H 7100 1450 31  0000 C CNN
F 1 "buffer_4pin" H 7375 1375 39  0000 C CNN
F 2 "" H 7350 1650 60  0000 C CNN
F 3 "" H 7350 1650 60  0000 C CNN
	1    7200 1625
	1    0    0    -1  
$EndComp
Wire Wire Line
	5925 1650 6825 1650
Wire Wire Line
	6425 1175 6425 6500
Wire Wire Line
	6425 2050 7450 2050
Wire Wire Line
	6825 2400 6675 2400
Wire Wire Line
	6675 2400 6675 1650
Connection ~ 6675 1650
Wire Wire Line
	7900 2425 8600 2425
Wire Wire Line
	7750 1650 8000 1650
Wire Wire Line
	8000 1650 8000 2425
Connection ~ 8000 2425
$Comp
L tristate_buffer_active_low U17
U 1 1 67FA35C5
P 7500 3950
F 0 "U17" H 7425 3775 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 7825 3825 31  0000 C CNN
F 2 "" H 7500 4050 60  0000 C CNN
F 3 "" H 7500 4050 60  0000 C CNN
	1    7500 3950
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U13
U 1 1 67FA35CB
P 7250 3125
F 0 "U13" H 7150 2950 31  0000 C CNN
F 1 "buffer_4pin" H 7425 2875 39  0000 C CNN
F 2 "" H 7400 3150 60  0000 C CNN
F 3 "" H 7400 3150 60  0000 C CNN
	1    7250 3125
	1    0    0    -1  
$EndComp
Wire Wire Line
	6425 3550 7500 3550
Wire Wire Line
	6025 3150 6875 3150
Wire Wire Line
	6875 3900 6625 3900
Wire Wire Line
	6625 3900 6625 3150
Connection ~ 6625 3150
Wire Wire Line
	7950 3925 8500 3925
Wire Wire Line
	7800 3150 8100 3150
Wire Wire Line
	8100 3150 8100 3925
Connection ~ 8100 3925
$Comp
L tristate_buffer_active_low U18
U 1 1 67FA35DA
P 7600 5450
F 0 "U18" H 7525 5275 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 7925 5325 31  0000 C CNN
F 2 "" H 7600 5550 60  0000 C CNN
F 3 "" H 7600 5550 60  0000 C CNN
	1    7600 5450
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U14
U 1 1 67FA35E0
P 7350 4625
F 0 "U14" H 7250 4450 31  0000 C CNN
F 1 "buffer_4pin" H 7525 4375 39  0000 C CNN
F 2 "" H 7500 4650 60  0000 C CNN
F 3 "" H 7500 4650 60  0000 C CNN
	1    7350 4625
	1    0    0    -1  
$EndComp
Wire Wire Line
	6425 5050 7600 5050
Wire Wire Line
	6125 4650 6975 4650
Wire Wire Line
	6975 5400 6725 5400
Wire Wire Line
	6725 5400 6725 4650
Connection ~ 6725 4650
Wire Wire Line
	8050 5425 8600 5425
Wire Wire Line
	7900 4650 8200 4650
Wire Wire Line
	8200 4650 8200 5425
Connection ~ 8200 5425
$Comp
L tristate_buffer_active_low U19
U 1 1 67FA35EF
P 7600 6900
F 0 "U19" H 7525 6725 60  0000 C CNN
F 1 "tristate_buffer_active_low" H 7925 6775 31  0000 C CNN
F 2 "" H 7600 7000 60  0000 C CNN
F 3 "" H 7600 7000 60  0000 C CNN
	1    7600 6900
	-1   0    0    -1  
$EndComp
$Comp
L buffer_4pin U15
U 1 1 67FA35F5
P 7350 6075
F 0 "U15" H 7250 5900 31  0000 C CNN
F 1 "buffer_4pin" H 7525 5825 39  0000 C CNN
F 2 "" H 7500 6100 60  0000 C CNN
F 3 "" H 7500 6100 60  0000 C CNN
	1    7350 6075
	1    0    0    -1  
$EndComp
Wire Wire Line
	6425 6500 7600 6500
Wire Wire Line
	6125 6100 6975 6100
Wire Wire Line
	6975 6850 6725 6850
Wire Wire Line
	6725 6850 6725 6100
Connection ~ 6725 6100
Wire Wire Line
	8050 6875 8600 6875
Wire Wire Line
	7900 6100 8200 6100
Wire Wire Line
	8200 6100 8200 6875
Connection ~ 8200 6875
Connection ~ 6425 2050
Connection ~ 6425 3550
Connection ~ 6425 5050
Wire Wire Line
	8375 1200 8375 5725
Wire Wire Line
	8375 5725 7325 5725
Wire Wire Line
	7325 4275 8375 4275
Connection ~ 8375 4275
Wire Wire Line
	7225 2775 8375 2775
Connection ~ 8375 2775
$Comp
L PORT U1
U 8 1 67FA3AB8
P 5025 3150
F 0 "U1" H 5075 3250 30  0000 C CNN
F 1 "PORT" H 5025 3150 30  0000 C CNN
F 2 "" H 5025 3150 60  0000 C CNN
F 3 "" H 5025 3150 60  0000 C CNN
	8    5025 3150
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 7 1 67FA3C3D
P 4925 4650
F 0 "U1" H 4975 4750 30  0000 C CNN
F 1 "PORT" H 4925 4650 30  0000 C CNN
F 2 "" H 4925 4650 60  0000 C CNN
F 3 "" H 4925 4650 60  0000 C CNN
	7    4925 4650
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 9 1 67FA3DC7
P 5025 6150
F 0 "U1" H 5075 6250 30  0000 C CNN
F 1 "PORT" H 5025 6150 30  0000 C CNN
F 2 "" H 5025 6150 60  0000 C CNN
F 3 "" H 5025 6150 60  0000 C CNN
	9    5025 6150
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 10 1 67FA3EEE
P 5025 7600
F 0 "U1" H 5075 7700 30  0000 C CNN
F 1 "PORT" H 5025 7600 30  0000 C CNN
F 2 "" H 5025 7600 60  0000 C CNN
F 3 "" H 5025 7600 60  0000 C CNN
	10   5025 7600
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 16 1 67FA4049
P 8850 2425
F 0 "U1" H 8900 2525 30  0000 C CNN
F 1 "PORT" H 8850 2425 30  0000 C CNN
F 2 "" H 8850 2425 60  0000 C CNN
F 3 "" H 8850 2425 60  0000 C CNN
	16   8850 2425
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 15 1 67FA4226
P 8750 3925
F 0 "U1" H 8800 4025 30  0000 C CNN
F 1 "PORT" H 8750 3925 30  0000 C CNN
F 2 "" H 8750 3925 60  0000 C CNN
F 3 "" H 8750 3925 60  0000 C CNN
	15   8750 3925
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 17 1 67FA4356
P 8850 5425
F 0 "U1" H 8900 5525 30  0000 C CNN
F 1 "PORT" H 8850 5425 30  0000 C CNN
F 2 "" H 8850 5425 60  0000 C CNN
F 3 "" H 8850 5425 60  0000 C CNN
	17   8850 5425
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 18 1 67FA4589
P 8850 6875
F 0 "U1" H 8900 6975 30  0000 C CNN
F 1 "PORT" H 8850 6875 30  0000 C CNN
F 2 "" H 8850 6875 60  0000 C CNN
F 3 "" H 8850 6875 60  0000 C CNN
	18   8850 6875
	-1   0    0    -1  
$EndComp
$Comp
L PORT U1
U 19 1 67FA473F
P 9750 2275
F 0 "U1" H 9800 2375 30  0000 C CNN
F 1 "PORT" H 9750 2275 30  0000 C CNN
F 2 "" H 9750 2275 60  0000 C CNN
F 3 "" H 9750 2275 60  0000 C CNN
	19   9750 2275
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 2 1 67FA485A
P 800 1800
F 0 "U1" H 850 1900 30  0000 C CNN
F 1 "PORT" H 800 1800 30  0000 C CNN
F 2 "" H 800 1800 60  0000 C CNN
F 3 "" H 800 1800 60  0000 C CNN
	2    800  1800
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 14 1 67FA4CFD
P 5875 6100
F 0 "U1" H 5925 6200 30  0000 C CNN
F 1 "PORT" H 5875 6100 30  0000 C CNN
F 2 "" H 5875 6100 60  0000 C CNN
F 3 "" H 5875 6100 60  0000 C CNN
	14   5875 6100
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 13 1 67FA514E
P 5875 4650
F 0 "U1" H 5925 4750 30  0000 C CNN
F 1 "PORT" H 5875 4650 30  0000 C CNN
F 2 "" H 5875 4650 60  0000 C CNN
F 3 "" H 5875 4650 60  0000 C CNN
	13   5875 4650
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 12 1 67FA526B
P 5775 3150
F 0 "U1" H 5825 3250 30  0000 C CNN
F 1 "PORT" H 5775 3150 30  0000 C CNN
F 2 "" H 5775 3150 60  0000 C CNN
F 3 "" H 5775 3150 60  0000 C CNN
	12   5775 3150
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 11 1 67FA574A
P 5675 1650
F 0 "U1" H 5725 1750 30  0000 C CNN
F 1 "PORT" H 5675 1650 30  0000 C CNN
F 2 "" H 5675 1650 60  0000 C CNN
F 3 "" H 5675 1650 60  0000 C CNN
	11   5675 1650
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 6 1 67FA58D8
P 2050 6850
F 0 "U1" H 2100 6950 30  0000 C CNN
F 1 "PORT" H 2050 6850 30  0000 C CNN
F 2 "" H 2050 6850 60  0000 C CNN
F 3 "" H 2050 6850 60  0000 C CNN
	6    2050 6850
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 5 1 67FA5B41
P 2050 5400
F 0 "U1" H 2100 5500 30  0000 C CNN
F 1 "PORT" H 2050 5400 30  0000 C CNN
F 2 "" H 2050 5400 60  0000 C CNN
F 3 "" H 2050 5400 60  0000 C CNN
	5    2050 5400
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 4 1 67FA5D52
P 1950 3900
F 0 "U1" H 2000 4000 30  0000 C CNN
F 1 "PORT" H 1950 3900 30  0000 C CNN
F 2 "" H 1950 3900 60  0000 C CNN
F 3 "" H 1950 3900 60  0000 C CNN
	4    1950 3900
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 3 1 67FA5F93
P 1525 2375
F 0 "U1" H 1575 2475 30  0000 C CNN
F 1 "PORT" H 1525 2375 30  0000 C CNN
F 2 "" H 1525 2375 60  0000 C CNN
F 3 "" H 1525 2375 60  0000 C CNN
	3    1525 2375
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 20 1 67FA6271
P 9750 2575
F 0 "U1" H 9800 2675 30  0000 C CNN
F 1 "PORT" H 9750 2575 30  0000 C CNN
F 2 "" H 9750 2575 60  0000 C CNN
F 3 "" H 9750 2575 60  0000 C CNN
	20   9750 2575
	1    0    0    -1  
$EndComp
Wire Wire Line
	10000 2275 10175 2275
Wire Wire Line
	10175 2275 10175 2575
Wire Wire Line
	10175 2575 10000 2575
$Comp
L eSim_GND #PWR01
U 1 1 67FA6444
P 10325 2425
F 0 "#PWR01" H 10325 2175 50  0001 C CNN
F 1 "eSim_GND" H 10325 2275 50  0000 C CNN
F 2 "" H 10325 2425 50  0001 C CNN
F 3 "" H 10325 2425 50  0001 C CNN
	1    10325 2425
	0    -1   -1   0   
$EndComp
Wire Wire Line
	10325 2425 10175 2425
Connection ~ 10175 2425
Text Label 2600 2025 0    60   ~ 0
TE
Text Label 3050 1275 0    60   ~ 0
PE
Wire Wire Line
	6425 1175 6450 1175
Wire Wire Line
	7175 1275 8375 1275
Connection ~ 8375 1275
Text Label 6450 1175 0    60   ~ 0
TE
Text Label 8375 1200 0    60   ~ 0
PE
$EndSCHEMATC