Linking 4017s

Status
Not open for further replies.

bitem2k

New Member
Hi all, anyone have any idea how to link 2 4017s to flash 18 leds?

If i connect to the %10 then linking them would produce numbers like 1- 99.
Where as i need numbers 1 - 20.

thanks very much
 
bitem2k said:
Hi all, anyone have any idea how to link 2 4017s to flash 18 leds?

If i connect to the %10 then linking them would produce numbers like 1- 99.
Where as i need numbers 1 - 20.

thanks very much
Click to expand...
The TI datsheet shows how to cascade them.
 
Texas Instruments' datasheet shows 17 cascaded LEDs.
Bill Bowden shows how to cascade 18 LEDs, uses Mickey Mouse diode gates and he explains how it works:
 

Attachments

  • cascaded 4017s-2.PNG
    43.6 KB · Views: 222
audioguru said:
Texas Instruments' datasheet shows 17 cascaded LEDs.
Bill Bowden shows how to cascade 18 LEDs, uses Mickey Mouse diode gates and he explains how it works:
Click to expand...
Here's a way to cascade 4017s for 18 counts that uses more respectable logic. I didn't show the LEDs.
If anybody needs the CD4017 model (I made it for SWcad, don't know if you could make it work for other simulators), let me know.
 

Attachments

  • cascaded cd4017s.PNG
    20.8 KB · Views: 286
Status
Not open for further replies.

Similar threads

S
Linking a drone camera to LCD glasses
Replies
2
Views
2K
Externet
Linking Hard Drives for RAID... this forum ok for computer stuff?
Replies
2
Views
1K
dknguyen
B
Scavenging 4017s for LED chaser
Replies
10
Views
3K
rjvh
R
B
linking computer to telephone land line
Replies
4
Views
2K
tansis
S
linking transformers
Replies
1
Views
2K
Optikon
Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…