I
have two C005 timer chips.
Each chip works as a one-shot timer.
Trigger: active LOW.
During timing, OUTPUT = HIGH.
When timing ends, OUTPUT changes to LOW.
My idea is to cross-connect them:
Output A → Trigger B
Output B → Trigger A
At power-up both triggers are pulled HIGH. I manually trigger Timer A once.
My question is:
Will this oscillate indefinitely, or does the C005 require the trigger input to return HIGH before accepting the next falling edge?
Has anyone actually tested this?

 

My question is:
Will this oscillate indefinitely, or does the C005 require the trigger input to return HIGH before accepting the next falling edge?

You can connect the inputs using capacitors to each other but the circuit will self oscillate when power is connected.

 

unless trigger input is oneshot type, adding capacitor will be needed to ensure trigger is just a short pulse (shorter than period of the timer).

 

After looking at the specs again the output is normally high with the trigger input high.
Even coupling with caps won't work.
When either chip is manually triggered both outputs will go low and I believe simply time out.

 

Quite possibly a logic buffer , probably eith AC coupling,(such as the suggested capacitor), will assure the desired alternate action. Probably the two timers should not be set with exactly the same time.