Sean RS Costall wrote: > Assuming that ceramic resonators are, in fact, cheaper than > crystals, are they available in very low frequencies? All I have > been able to locate is 4 MHz and up parts. I would need one that > worked at 32 kHz. Sorry, Sean... Ceramic resonators aren't available at those frequencies. Even if they were, they'd be about one inch square and would be VERY shock-sensitive. You'll have to use a crystal for this application. -Andy Andrew Warren - fastfwd@ix.netcom.com Fast Forward Engineering, Vista, California http://www.geocities.com/SiliconValley/2499