31 Dec
2008
31 Dec
'08
11:03 a.m.
On Dec 31, 2008, at 10:43 AM, bfranchuk at jetnet.ab.ca wrote:
Guy Sotomayor wrote:
The problem is that to get the density in order to put this on one
board (even hex) you have to do SMT. There's no way around it.
You're also looking at mostly 3.3v parts as well. It took me a while
before I went down this road, but now I'm pretty committed to this
approach. I've also decided that any boards that I do from here on
out are going to be a minimum of 4 layers. It just makes the routing
*so* much easier by not having to figure out how to route power (or
multiple powers) and ground. Also being able to put some passives (ie
bypass caps and pull-up/down resistors) on the back side of the board
helps too.
TTFN - Guy
I'd be looking at using 133MHz SSRAMs which
are available in at
least 512K x 36 (QFP - SMT). So you'd need 2 parts.
I am a Thru The Hole guy myself ...