Path: utzoo!utgpu!watmath!att!dptg!rutgers!usc!cs.utexas.edu!csd4.milw.wisc.edu!uakari.primate.wisc.edu!indri!nic.MR.NET!ns!logajan
From: logajan@ns.network.com (John Logajan)
Newsgroups: comp.sys.atari.st
Subject: Re: 1Mbit DRAM Decoupling
Message-ID: <1534@ns.network.com>
Date: 8 Aug 89 02:42:35 GMT
References: <8908071828.AA10664@tron>
Sender: logajan@ns.network.com (John Logajan)
Organization: Network Systems Corp. Mpls MN
Lines: 16

willing@ICSL.UCLA.EDU (Scott Willingham) writes:
> Does anyone out there happen to know the optimum decoupling
> capacitor value for 1Mbit DRAMS?  If so, do you also know of a
> good supplier for them?

I've constructed RAM boards using .01uf per memory chip, but I usually use
0.1 uf.  It is usually the number of outputs on a chip that determine the
power glitch during switching.  A single bit ram needs less bypassing than
a ram with 8 data lines.  But 0.1uf should be fine for your purposes.
Keep the leads short!  And keep the caps near the chips.  Everybody sells
0.1uf caps!!!!!!!


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- John M. Logajan @ Network Systems; 7600 Boone Ave; Brooklyn Park, MN 55428  -
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