Colin, There was a thread that appeared about 6 months ago about the (Texas Instruments) TPIC6A595 Shift register, so I know that people are using them. It is cascadable and can also drive LEDs and Relays, etc... I've cascaded 18 simultaneously to control 144 LEDs (on Guitar Fretboard as a teaching tool) and had great luck with them! -Jeff Hi, I'm guessing that lots of folks use 8 bit shift registers to get data into and out of PICs. So I was just wondering what are the most popular para in/ser out and ser in/para out devices. Do you use any that are daisy chainable? TIA Colin _________________________________________________________________ Add photos to your e-mail with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details. -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.