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- Xref: sparky comp.lsi:738 comp.arch:11574
- Path: sparky!uunet!psinntp!parlan!richardw
- From: richardw@hub.parallan.com (Richard Walter)
- Newsgroups: comp.lsi,comp.arch
- Subject: Re: Intel's 100-Million Transistor Device
- Message-ID: <VFmJVB1w164w@hub.parallan.com>
- Date: Wed, 09 Dec 92 17:39:06 PST
- References: <1992Dec8.203828.18070@adobe.com>
- Organization: Parallan Computer, Mountain View CA
- Lines: 52
-
- pngai@adobe.com (Phil Ngai) writes:
-
- > In article <DOCONNOR.92Dec8082938@potato.sedona.intel.com> doconnor@sedona.in
- > >Second, don't forget about flash. Intel is building way-dense
- > >flash memories, and claims flash will be denser than DRAM
- > >as device geometries shrink further.
- >
- > Could you please tell me where I can buy Intel FLASH devices?
- > Or should I ask _when_ I can buy them?
- >
- > --
- > Remember Melvin Ancheta.
-
- Where to buy Intel FLASH devices? Why not call INTEL ???????????
- They have been in full production and available for at least a year, if
- not longer. (I'll be showing my age here, but FLASH ROMs are the ONLY
- ROM chips which I have ever used, and I graduated in '90). You should
- have absolutely no problems getting F010 (128Kx8) or F020 (256Kx8) chips
- in either 32-DIP or 32-PLCC. The newer F001 (1Mx8) chips should be
- into general availability by now, but they only come in 40TSOP packages,
- so they are not easy to work with (ie: soldered on board, not socketed),
- so most of them are used in PCMCIA memory type cards.
-
- I can name at least 4 major PC makers who are shipping systems with
- FLASH BIOS ROMs. They are great for upgrading, the users can just dial
- up a BBS and download a new BIOS. Most companies don't want to
- advertise it much because of the fear of some complete bone-headed loser
- idiot writing a virus which wipes out ROMs. That would be a major
- problem. (Intel lore: Early 386SL specs had a pin on the processor
- called FLASH_DISASTER which meant that you were in the middle of re-
- flashing your ROMs when something happened. If the pin was active on
- a boot, then the SL was supposed to fetch it's code from the parallel
- port and not from the ROM. That way you could rescue a dead machine
- without needing to pop the chip. That pin, however, was dropped from
- later versions and never made it into the chips.)
-
- Also, Intel owns the FLASH market (yea, USA!), but they are not the only
- people who have FLASH chips. AMD and Atmel make them also. (In fact,
- AMD and Atmel make 5V only flash; The Intel ones still require 12V
- to program). Also, AT&T makes serial FLASH ROMs which are used in the
- SunDisk(tm) solid state drive system.
-
- Now, to the point of FLASH overtaking DRAM in size with shrinking geometry,
- although I've heard this argument, I admit that I don't understand it.
- Can't DRAM take advantage of shrinking geometry also? So if a FLASH cell
- can be made smaller than a DRAM cell, then why aren't FLASH cells in
- today's technology smaller than DRAMS in today's technology, and so would
- have higher density? Anyone??
-
- Sincerely,
- Richard Walter
- richardw@parallan.com
-