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
LIBS:mc1489-cache
EELAYER 25 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 1 1
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
Wire Wire Line
	5550 4150 5550 4900
Wire Wire Line
	7700 4200 7700 4850
Wire Wire Line
	7700 4850 7750 4850
Wire Wire Line
	5550 4500 7700 4500
Connection ~ 7700 4500
Connection ~ 5550 4500
Wire Wire Line
	8050 5700 8050 5900
Wire Wire Line
	8050 5900 8150 5900
Wire Wire Line
	7400 3350 7400 3200
Wire Wire Line
	5250 3300 5250 3050
Wire Wire Line
	5850 5750 5850 5950
Text GLabel 5850 5950 3    60   Input ~ 0
gnd
Text GLabel 8150 5900 2    60   Input ~ 0
gnd
Text GLabel 7400 3200 0    60   Input ~ 0
gnd
Text GLabel 5250 3050 0    60   Input ~ 0
gnd
Wire Wire Line
	4850 3750 4600 3750
Wire Wire Line
	4800 5200 4550 5200
Wire Wire Line
	5250 5750 5000 5750
Wire Wire Line
	6250 5300 6250 5200
Wire Wire Line
	7000 5150 7000 5050
Wire Wire Line
	7450 5700 7300 5700
Wire Wire Line
	8450 5250 8450 5050
Wire Wire Line
	8450 3900 8450 4000
Wire Wire Line
	7000 3800 7000 3950
Wire Wire Line
	8000 3350 8150 3350
Wire Wire Line
	5850 3300 5950 3300
Wire Wire Line
	6300 3850 6300 3700
$Comp
L PORT U1
U 3 1 679A35F2
P 6200 3300
F 0 "U1" H 6250 3400 30  0000 C CNN
F 1 "PORT" H 6200 3300 30  0000 C CNN
F 2 "" H 6200 3300 60  0000 C CNN
F 3 "" H 6200 3300 60  0000 C CNN
	3    6200 3300
	-1   0    0    1   
$EndComp
$Comp
L PORT U1
U 6 1 679A361D
P 4750 5750
F 0 "U1" H 4800 5850 30  0000 C CNN
F 1 "PORT" H 4750 5750 30  0000 C CNN
F 2 "" H 4750 5750 60  0000 C CNN
F 3 "" H 4750 5750 60  0000 C CNN
	6    4750 5750
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 4 1 679A363E
P 6000 5200
F 0 "U1" H 6050 5300 30  0000 C CNN
F 1 "PORT" H 6000 5200 30  0000 C CNN
F 2 "" H 6000 5200 60  0000 C CNN
F 3 "" H 6000 5200 60  0000 C CNN
	4    6000 5200
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 5 1 679A3661
P 4300 5200
F 0 "U1" H 4350 5300 30  0000 C CNN
F 1 "PORT" H 4300 5200 30  0000 C CNN
F 2 "" H 4300 5200 60  0000 C CNN
F 3 "" H 4300 5200 60  0000 C CNN
	5    4300 5200
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 1 1 679A3686
P 4350 3750
F 0 "U1" H 4400 3850 30  0000 C CNN
F 1 "PORT" H 4350 3750 30  0000 C CNN
F 2 "" H 4350 3750 60  0000 C CNN
F 3 "" H 4350 3750 60  0000 C CNN
	1    4350 3750
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 2 1 679A36AD
P 6050 3700
F 0 "U1" H 6100 3800 30  0000 C CNN
F 1 "PORT" H 6050 3700 30  0000 C CNN
F 2 "" H 6050 3700 60  0000 C CNN
F 3 "" H 6050 3700 60  0000 C CNN
	2    6050 3700
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 7 1 679A36D6
P 4900 3250
F 0 "U1" H 4950 3350 30  0000 C CNN
F 1 "PORT" H 4900 3250 30  0000 C CNN
F 2 "" H 4900 3250 60  0000 C CNN
F 3 "" H 4900 3250 60  0000 C CNN
	7    4900 3250
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 10 1 679A3701
P 6750 3950
F 0 "U1" H 6800 4050 30  0000 C CNN
F 1 "PORT" H 6750 3950 30  0000 C CNN
F 2 "" H 6750 3950 60  0000 C CNN
F 3 "" H 6750 3950 60  0000 C CNN
	10   6750 3950
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 12 1 679A372E
P 6750 5050
F 0 "U1" H 6800 5150 30  0000 C CNN
F 1 "PORT" H 6750 5050 30  0000 C CNN
F 2 "" H 6750 5050 60  0000 C CNN
F 3 "" H 6750 5050 60  0000 C CNN
	12   6750 5050
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 11 1 679A375D
P 7050 5700
F 0 "U1" H 7100 5800 30  0000 C CNN
F 1 "PORT" H 7050 5700 30  0000 C CNN
F 2 "" H 7050 5700 60  0000 C CNN
F 3 "" H 7050 5700 60  0000 C CNN
	11   7050 5700
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 13 1 679A3796
P 8200 5050
F 0 "U1" H 8250 5150 30  0000 C CNN
F 1 "PORT" H 8200 5050 30  0000 C CNN
F 2 "" H 8200 5050 60  0000 C CNN
F 3 "" H 8200 5050 60  0000 C CNN
	13   8200 5050
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 9 1 679A37C9
P 8200 4000
F 0 "U1" H 8250 4100 30  0000 C CNN
F 1 "PORT" H 8200 4000 30  0000 C CNN
F 2 "" H 8200 4000 60  0000 C CNN
F 3 "" H 8200 4000 60  0000 C CNN
	9    8200 4000
	1    0    0    -1  
$EndComp
$Comp
L PORT U1
U 8 1 679A37FE
P 8400 3350
F 0 "U1" H 8450 3450 30  0000 C CNN
F 1 "PORT" H 8400 3350 30  0000 C CNN
F 2 "" H 8400 3350 60  0000 C CNN
F 3 "" H 8400 3350 60  0000 C CNN
	8    8400 3350
	-1   0    0    1   
$EndComp
$Comp
L PORT U1
U 14 1 679A3835
P 6650 4900
F 0 "U1" H 6700 5000 30  0000 C CNN
F 1 "PORT" H 6650 4900 30  0000 C CNN
F 2 "" H 6650 4900 60  0000 C CNN
F 3 "" H 6650 4900 60  0000 C CNN
	14   6650 4900
	0    -1   -1   0   
$EndComp
Wire Wire Line
	5150 3250 5250 3250
Connection ~ 5250 3250
Wire Wire Line
	6650 4650 6650 4500
Connection ~ 6650 4500
$Comp
L MC1489_0 X1
U 1 1 679A3C30
P 5550 3650
F 0 "X1" H 5550 3650 60  0000 C CNN
F 1 "MC1489_0" H 5550 3550 60  0000 C CNN
F 2 "" H 5550 3550 60  0001 C CNN
F 3 "" H 5550 3550 60  0001 C CNN
	1    5550 3650
	1    0    0    -1  
$EndComp
$Comp
L MC1489_0 X3
U 1 1 679A3C93
P 7700 3700
F 0 "X3" H 7700 3700 60  0000 C CNN
F 1 "MC1489_0" H 7700 3600 60  0000 C CNN
F 2 "" H 7700 3600 60  0001 C CNN
F 3 "" H 7700 3600 60  0001 C CNN
	1    7700 3700
	1    0    0    -1  
$EndComp
$Comp
L MC1489_0 X2
U 1 1 679A3FCC
P 5550 5400
F 0 "X2" H 5550 5400 60  0000 C CNN
F 1 "MC1489_0" H 5550 5300 60  0000 C CNN
F 2 "" H 5550 5300 60  0001 C CNN
F 3 "" H 5550 5300 60  0001 C CNN
	1    5550 5400
	-1   0    0    1   
$EndComp
$Comp
L MC1489_0 X4
U 1 1 679A4021
P 7750 5350
F 0 "X4" H 7750 5350 60  0000 C CNN
F 1 "MC1489_0" H 7750 5250 60  0000 C CNN
F 2 "" H 7750 5250 60  0001 C CNN
F 3 "" H 7750 5250 60  0001 C CNN
	1    7750 5350
	-1   0    0    1   
$EndComp
$EndSCHEMATC