Graham North wrote:
> I think I am going to need an I/O expander on my current project. I
have
> decided upon the PCA9554, but can not find a supplier in the UK!

 May be PIC16F871 could serve as the I/O expander:
~$3.5 retail, ~30 I/O lines. I've bought them today.

 Mike.

--
http://www.piclist.com hint: PICList Posts must start with ONE topic:
[PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads