EESchema Schematic File Version 4
EELAYER 30 0
EELAYER END
$Descr A4 11693 8268
encoding utf-8
Sheet 4 5
Title ""
Date ""
Rev ""
Comp ""
Comment1 ""
Comment2 ""
Comment3 ""
Comment4 ""
$EndDescr
$Comp
L 74xx:74LS390 U?
U 1 1 5E2FC3AF
P 3850 2650
F 0 "U?" H 3850 3017 50  0000 C CNN
F 1 "74HC390" H 3850 2926 50  0000 C CNN
F 2 "" H 3850 2650 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 3850 2650 50  0001 C CNN
	1    3850 2650
	1    0    0    -1  
$EndComp
$Comp
L 4xxx:4046 U?
U 1 1 5E2FC7E9
P 3850 5550
F 0 "U?" H 3850 6431 50  0000 C CNN
F 1 "74HC4046" H 3850 6340 50  0000 C CNN
F 2 "" H 3850 5550 50  0001 C CNN
F 3 "https://assets.nexperia.com/documents/data-sheet/HEF4046B.pdf" H 3850 5550 50  0001 C CNN
	1    3850 5550
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS390 U?
U 2 1 5E2FD81E
P 3850 3400
F 0 "U?" H 3850 3767 50  0000 C CNN
F 1 "74HC390" H 3850 3676 50  0000 C CNN
F 2 "" H 3850 3400 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 3850 3400 50  0001 C CNN
	2    3850 3400
	1    0    0    -1  
$EndComp
$Comp
L 74xx:74LS390 U?
U 3 1 5E2FE851
P 4700 1150
F 0 "U?" H 4930 1196 50  0000 L CNN
F 1 "74HC390" H 4930 1105 50  0000 L CNN
F 2 "" H 4700 1150 50  0001 C CNN
F 3 "http://www.ti.com/lit/gpn/sn74LS390" H 4700 1150 50  0001 C CNN
	3    4700 1150
	1    0    0    -1  
$EndComp
Text HLabel 9450 2650 2    50   Input ~ 0
10MHz
Text HLabel 9450 2550 2    50   Input ~ 0
1PPS
$EndSCHEMATC