TTL Johnson Counter

[muso52]

Hi Guys and Galls,

I know I am getting on a bit but I am having trouble locating a 74LS series Johnson Counter, 0 to 9
not 4bit BCD. Can anybody point me in the right direction please? UK/RS if possible

Thanks,
Willy

 

[ericgibbs]

Hi Guys and Galls,

I know I am getting on a bit but I am having trouble locating a 74LS series Johnson Counter, 0 to 9
not 4bit BCD. Can anybody point me in the right direction please? UK/RS if possible

Thanks,
Willy

hi,
The LS160 and LS162 a synchronous counters, deglitched .

E
Check this link https://en.wikipedia.org/wiki/List_of_7400_series_integrated_circuits


EDIT:
There is a 74HCT4017 version 0f decoded 0 to 9 output

 

[muso52]

Hi Eric,
Thanks but with respect I am looking for a decade (out) device ie, 0 - 9 on individual outputs and not 4 bit. Now 74290 decade counter (separate divide-by-2 and divide-by-5 sections) as listed in the Wiki list I think fits the bill being a 5 stage counter however can not source anywhere. CMOS version is a 4017 I think.

Willy

 

[crutschow]

Don't think there is a 74LS version of a Johnson counter. There is a 744017 available in the CMOS HC/HCT family. Why not use that?

 

[muso52]

Yes agreed, I think that is the best option.
Thanks,

Willy