Vicky, I have successfully used 2.5V CMOS device with SSTL_2 device in a point-to-point application. I believe you can use LVTTL 2.5V device as well. Make sure that you simulate it, and be extra careful about the crosstalk, particularly as it affects the falling edge of the data transitions. Regards, Ravinder Server PCB Development Hitachi Global Storage Technologies Email: Ravinder.Ajmani@xxxxxxxxxxxxxx Vicky Kunwar <kunwar_vikrant@xxxxxxxxx> Sent by: si-list-bounce@xxxxxxxxxxxxx 07/28/2005 03:00 AM Please respond to kunwar_vikrant@xxxxxxxxx To si-list@xxxxxxxxxxxxx cc Subject [SI-LIST] LVTTL SSTL interface Hi All, I am wondering if an LVTTL 2.5 device can connect with SSTL_2 device. Can LVTTL output meet the SSTL_2 interface specs? I tried to find the converter but had no luck. Can you please suggest me if it can be connected without any converter in between? regards Vicky ------------------------------------------------------------------ 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?Si-List_FAQ 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