Hi All; I need to connect the 100MHz address bus to memory and several other peripherals. My processor data sheet specifies the address pin load/drv capacitance as 50pF. Now assuming a load capacitance of x pF at each of the peripheral chip pins what is the maximum number of Address input pins to which this signal can be connected un-buffered. Apart from the pin capacitance and the trace capacitance of say 'y' pF are there any considerations? Or is it just enough to add up the pin capacitances and equivalent trace capacitances and keep it within the 50pF specification. Secondly, which is the best routing topology to ensure maximum un-buffered loading. Thanks; Ravi ------------------------------------------------------------------ To unsubscribe from si-list: si-list-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field or to administer your membership from a web page, go to: //www.freelists.org/webpage/si-list For help: si-list-request@xxxxxxxxxxxxx with 'help' in the Subject field List FAQ wiki page is located at: http://si-list.org/wiki/wiki.pl List technical documents are available at: http://www.si-list.org List archives are viewable at: //www.freelists.org/archives/si-list or at our remote archives: http://groups.yahoo.com/group/si-list/messages Old (prior to June 6, 2001) list archives are viewable at: http://www.qsl.net/wb6tpu