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From: et891892@levels.sait.edu.au
Newsgroups: sci.electronics
Subject: do 'static' DRAMS exist ?
Message-ID: <16271.28268701@levels.sait.edu.au>
Date: 7 May 91 01:22:47 GMT
Organization: University of South Australia
Lines: 25


	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 ..
	
	I would like to have a large amount of RAM ( 1MByte - 4MByte)
	controlled by a MC68HC11 microcontroller , but I can't work
	out a way of refreshing the RAM without using a complicated
	dedicated DRAM controller. The DRAM's do not need to be mapped 
	into the CPU's memory map.

	Please reply to this newsgroup or to 

		et891892@lux.sait.edu.au

	Kym Newbery
-- 
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 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'
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 3rd Year Electronic Engineering Student @ The University of South Australia
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