This http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjS7-Lcr_7MAhVLPlIKHcmDB8wQFggcMAA&url=http://www.customsiliconsolutions.com/downloads/Revised%20Standard%20products/CSS555C_Spec.pdf&usg=AFQjCNGtdxhSl2lTdvHun1JVfEFmgOXGyA&bvm=bv.123325700,d.aXo&cad=rja might work. It's not a 555 timer, but it acts sort of, like one. It's also programmable.

I didn't look at all of the details.

 

This http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&ved=0ahUKEwjS7-Lcr_7MAhVLPlIKHcmDB8wQFggcMAA&url=http://www.customsiliconsolutions.com/downloads/Revised%20Standard%20products/CSS555C_Spec.pdf&usg=AFQjCNGtdxhSl2lTdvHun1JVfEFmgOXGyA&bvm=bv.123325700,d.aXo&cad=rja might work. It's not a 555 timer, but it acts sort of, like one. It's also programmable.

I didn't look at all of the details.

Nice IC, unfortunately, i its not a popular IC and hard to get

 

Hello guys, i'm planning on buying

fairly easy to do. I took the code I showed on the 16f54 clock project and made a pulse generator: 2 pps, 10% duty cycle (active low). on a pic10f200, it takes 134 bytes of flash and 15 bytes of ram, without any optimization. So still more room for other features.

I think you will find for long-period precision timing, simple mcus is really the way to go.

I'm planning on buying the PIC K150 programmer with 10pcs's of 12F509 ic's, and of those 10, i will decap one or 2.

But i wan't to know whether i can get negative (V-) as output. I can't find answer anywhere. So the 20Hz pulsing output is V- not V+. Is that possible with this IC?

Thanks

 

http://www.jameco.com/1/1/4849-css555-is-micropower-timer-soic-8.html

http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2146433_-1

 

http://www.jameco.com/1/1/4849-css555-is-micropower-timer-soic-8.html

http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_2146433_-1

Thanks for the link. I will keep an eye on it for feature projects as this ultra low powered version of the 555 looks very usefull.