Path: utzoo!attcan!uunet!decwrl!hayes.fai.alaska.edu!acad3.fai.alaska.edu!ftpam1 From: ftpam1@acad3.fai.alaska.edu (MUNTS PHILLIP A) Newsgroups: sci.electronics Subject: Re: 32K by 8 FIFO Message-ID: <1990Sep15.043727.18883@hayes.fai.alaska.edu> Date: 15 Sep 90 04:37:27 GMT References: <6334@castle.ed.ac.uk> Sender: usenet@hayes.fai.alaska.edu (J Random USENET) Reply-To: ftpam1@acad3.fai.alaska.edu Organization: University of Alaska Fairbanks Lines: 35 News-Software: VAX/VMS VNEWS 1.3-4 In article <6334@castle.ed.ac.uk>, elee24@castle.ed.ac.uk (H Bruce) writes... >Does anyone know of the existence of 32K by FIFO ? >If so could you tell me how much it costs ? > >If the cost is two high I may consider making one myself. >The main components that I think I would need are: > >1 32K by 8 static RAM >2 15 bit up/down counters (one for FIFO head, one for tail) >1 15 bit comparator to check that head and tail don't collide. > >If anyone has any any comments on building FIFO's I would like to hear them. > The biggest FIFO I have seen data for is the IDT7M206 at 16K by 9. It is a multichip module and will cost big $$$. You could do the same thing yourself with the common .5/1/2/4... K monolithic FIFO's, which have a depth expansion mechanism. (IDT is Integrated Device Technology, 408-727-6116). >Thanks, > >Henry Bruce. > > > >PS I am an active UNIX and net user that does a lot of work with the 8051 > microcontroller family. However there does not appear to be an appropriate > newsgroup. Any one interested in setting up comp.sys.8051 ???? Yes. I work with various sorts of 51 parts and play with the DS5000 from Dallas Semiconductor. Philip Munts N7AHL NRA Extremist, etc. University of Alaska, Fairbanks