Which companies have "switch debouncer" IC?

[onemilimeter]

switch debouncer

So far I know Maxim and On Semiconductor have such IC, i.e. MAX6818 and MC14490 respectively. Pls advise if any other company also has such IC. Thanks.

 

[kupper]

switch debouncer ic delay

can you add capacitors to the switch? or do some sort of software debouncing?
Also maybe this article can be of use? h**p://www.ganssle.com/debouncing.pdf

* => t

 

[echo47]

max6818

That PDF almost discovers a simple digital solution, but misses it.

Sample the button signal at a rate that slightly slower than the maximum bounce duration. For example, 50 Hz sampling rejects up to 20ms of bounce. You can do that in your microcontroller by using a timer loop, or in hardware by using a D flip-flop and 555 timer.

 

[Nandulal]

debouncer

You can use Dual 2-Input NAND to form the S-R latch. You can use NL27WZ00 IC from OnSemi.

Nandu

 

[funnynypd]

switch debouncer ic

freescale got this feature on its micro.

 

[rikie_rizza]

Use omron switches, its mechanical construction are better. add 40ms delay after the read switch function if you are using microcontroller. I've use maxim's switch debouncer, its good but its a waste. u can save several $ by not using that.