From: tsjoit@htsa.aha.nl (T. H. Tsim)
Subject: Re: RAMs &ROMs with ALE latches (for 8051's)
Organization: Hogeschool van Amsterdam, The Netherlands, E.E. & C.S. Dept.
Keywords: 8051, 373,
Lines: 21


>>In article <1qg98sINNokf@sheoak.ucnv.edu.au> jeff@redgum.ucnv.edu.au (j. pethybridge) writes:
>>>	Hello again,
>>> I asked this a year ago, but i am still looking.
>>> I am getting sick of having to use a HC373 

I didn't catch your posting one year ago, but I presume you like to leave out
an extra a-latch ? (I presume you allready know there is a '573 but that couldnt
be the question, could it ? ;-)

During my student-trainee project, I discouvered a nice device, it's a PSD301  
from Waferscale Integration. In one single (44 PLCC I think it was) package
it contained: ROM, RAM, I/O lines and a programmable addressdecoder...

As far as I can recall, it can be hooked directly with a MCS-51 series uP ... 
Neat huh ? But it needs programming before assembly, so it wasn't suitable
for my project. Perhaps usefull for you (future) plans ?


Greetings!