Maybe get some indication from Octopart[0], quick scan tells me that there are relevant prodcts by at least TI, Fairchild, STMicro, Intersil, Maxim, New Japan R

Maybe get some indication from Octopart[0], quick scan tells me that there are relevant prodcts by at least TI, Fairchild, STMicro, Intersil, Maxim, New Japan Radio, Diodes Inc., NXP have parts in stock. I'd be surprised if those are all just old stuff and not still being produced. [0]: https://octopart.com/search?q=555&start=0&filter%5Bfields%5D%5Bcategory_uids%5D%5B%5D=d12f1c25e56a0ae8 https://octopart.com/search?q=555&start=0&filter%5Bfields%5D...