In SX Microcontrollers, SX/B Compiler and SX-Key Tool, bean wrote: I depends on what you want to do. The SX will run @ 4MHz, 1MHz, 128KHz, and 32KHz on it's own internal clock. BUT...The internal clock is not acurate enough for sensitive timing (like serial communications). Bean. ---------- End of Message ---------- You can view the post on-line at: http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=138836#m138841 Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)