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From: cjp@megatek.UUCP (Christopher J. Pikus)
Newsgroups: sci.electronics
Subject: Re: do 'static' DRAMS exist ?
Message-ID: <4952@valhalla.megatek.uucp>
Date: 13 May 91 18:31:41 GMT
References: <16271.28268701@levels.sait.edu.au>
Organization: Megatek Corporation, San Diego, Ca.
Lines: 26

et891892@levels.sait.edu.au writes:
> 
> 	Has anybody heard of DRAM chips / simms that have a built-in
> 	refresh counter that doesn't need to be clocked externally ?
>          I thought I read somewhere that Samsung make chips (KM4C1002)
> 	that are pseudo static ..
> 	
>  -----------------------------------------------------------------------------
>  Kym B Newbery - >>MAATSUYKER<< |                - MISTAKES -
>  UNIX: et891892@lux.sait.edu.au |    ' Doctors bury them.........
>  VMS:  et891892@lv.sait.edu.au  |         ...engineers get buried by them'
>  -----------------------------------------------------------------------------

	These are called pseudo-static DRAMS. They offer the density and low
power consumption of DRAM with the simplicity of static RAM. They have the
refresh circuitry and addressing (RAS/CAS) inside the chip.

	Hitachi makes them. Someone mentioned Micron too but they are US based
and you might have an easier time getting Japaneese parts.


-- 
Gun control means being able to hit your target....
Christopher J. Pikus,               Megatek Corp.
INTERNET:     cjp@megatek.uucp      San Diego, CA
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