[SI-LIST] : Advice for long bus?

Chris Bobek ([email protected])
Wed, 28 Apr 1999 09:57:21 -0700

We are designing a board that has a micro with a 32 bit address/data bus
which will ultimately go to 14 loads (memory, flash, various other devices).
The bus speed hasn't been decided yet, but it will be either 33 or 66MHz.
Most everything is 3V logic.

Question: Would it be advantageous to use an alternative signaling scheme
(such as GTL) instead of the LVTTL? There will probably be buffer/drivers
anyhow since the micro won't be able to drive 14 loads.

Does anybody have any other suggestions/advice? I realize you may need more
info for this, but I want to keep this brief/high-level.

Thank you,


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