[sdiy] Shift register options

[Tom Wiltshire]

Totally agree with Roman. the '595 is an excellent choice, to the point that it or the '594 are the defacto standard for that job.

I commonly use the 74HC166 to do the same job in reverse - parallel in, serial out. Makes reading any number of buttons/encoders/whatever a simple matter of a few pins.

On 6 Feb 2014, at 15:51, Roman Sowa <modular at go2.pl> wrote:

> FWIW, I use them by hundreds, if not thousands without any problems, just to control LEDs. Work like a charm.
> I love the idea of having almost all outputs at one side of the IC.
> 
> You may try some open-drain (TPIC6C595) versions to boost LED current up to 100mA, but beware, they have totally different pinout. OTOH any modern LED gives blinding light at mere 5mA
> 
> Roman
> 
> W dniu 2014-02-06 16:28, Justin Owen pisze:
>> Related to my last uM post...
>> 
>> We're using a 74HC595 shift register/405x multiplexer combo to cycle
>> through some button states. I'm comfortable with the 405x series but
>> I've not used shift registers before...
>> 
>> ...is there a 'better' option than the generic 74HC595?
>> 
>> It's working fine, it's available in DIL and SOIC - just thought I'd
>> ask.
>> 
>> Thanks all,
>> 
>> - J
>> 
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