Today we are going to revisit the CD4541 programmable CMOS timer IC. Although this monostable timer chip has been around for a long time, and many other chips have superseded it, the CD4541 IC is ...

If you need a precise time, you could use a microcontroller. Of course, then all your friends will say “Could have done that with a 555!” But the 555 isn’t magic — it uses a capacitor and a comparator ...

While the “should have used a 555” meme is strong around these parts, we absolutely agree with [Kelvin Brammer]’s decision to make this 555-shaped plug-in replacement for the 555 timer chip using ...