> > Is there some sort of mutiplexer chip that I can use to choose which > > slave chip I want to send the data/clock signals to? > > Actually you only have to multiplex the clock. Data doesn't mean anything > without a clock. > > A 74HC138 or 74HC139 decoder will do the job. Tie the clock to the E pin > and use the two/three select pins to pick the output. The output will follow > the E pin for the selected output and all other outputs are high. Thank you! This is exactly what I needed. Or a quad AND gate. It's just been so long since I've worked with the 74xxxx thingies that I've fogotten which is which. :) -- D. Jay Newman ! jay@sprucegrove.com ! Xander: Giles, don't make cave-slayer unhappy. http://enerd.ws/robots/ ! -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads