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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Thu Aug 15, 2019 2:19 pm Post subject: CPU Shack: TRW 4K MRAM dies - 4 Left |
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Here are some unusual ones
These are sets of 25 original MRAM (Magnetic RAM) made back in the 1980's.
They were fab'd by TRW in CMOS but I think they were probably being made for Honeywell (which was experimenting with MRAM back in the mid-1980s)
12 trays of these, 25 dies per tray
$10 each tray
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Last edited by CPUShack on Mon Dec 30, 2019 11:36 pm; edited 5 times in total |
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Thu Aug 15, 2019 2:23 pm Post subject: |
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| Let's have one tray please |
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Bator
Joined: 28 Oct 2013
Posts: 1285
Location: Russia / Yakutia & Siberia
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| Posted: Thu Aug 15, 2019 2:33 pm Post subject: |
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One tray for me please.
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karman
Joined: 10 Aug 2017
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Location: Spain
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| Posted: Thu Aug 15, 2019 2:42 pm Post subject: |
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| One tray for me please |
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magictom
Joined: 14 May 2009
Posts: 2281
Location: Hawaii
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| Posted: Thu Aug 15, 2019 2:59 pm Post subject: |
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Andreycpu
Joined: 13 Feb 2016
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Location: Russia
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| Posted: Thu Aug 15, 2019 3:40 pm Post subject: |
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| one tray please |
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CHips
Joined: 01 May 2016
Posts: 834
Location: Switzerland
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| Posted: Thu Aug 15, 2019 3:48 pm Post subject: |
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Wow, that already existed since 198x?
But they still have not revolutionized the computer memories... Ssd and Ram convergence is still yet to happen...
Let's take one tray please  !
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Last edited by CHips on Thu Aug 15, 2019 4:06 pm; edited 2 times in total |
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stevejam
Joined: 30 Dec 2017
Posts: 803
Location: Metaluna aka Bellevue WA
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| Posted: Thu Aug 15, 2019 3:49 pm Post subject: |
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| One tray please! |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Thu Aug 15, 2019 4:11 pm Post subject: |
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| CHips wrote: | Wow, that already existed since 198x?
But they still have not revolutionized the computer memories... Ssd and Ram convergence is still yet to happen...
Let's take one tray please ! |
They didnt scale well at all, so took a long time to make it work at usable scales and power usage
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cvandijk
Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands
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| Posted: Thu Aug 15, 2019 11:34 pm Post subject: |
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| 1 tray for me, thanks |
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xhoba
Joined: 20 Apr 2009
Posts: 4596
Location: Picardie, France
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tunder10
Joined: 08 Nov 2006
Posts: 5001
Location: italy
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| Posted: Fri Aug 16, 2019 4:06 am Post subject: |
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| One tray for me thanks |
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stamasd
Joined: 05 Jun 2014
Posts: 1311
Location: Connecticut
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| Posted: Fri Aug 16, 2019 5:18 am Post subject: |
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| CPUShack wrote: | | CHips wrote: | Wow, that already existed since 198x?
But they still have not revolutionized the computer memories... Ssd and Ram convergence is still yet to happen...
Let's take one tray please ! |
They didnt scale well at all, so took a long time to make it work at usable scales and power usage |
Yeah getting the density took a few decades. I think only recently they got a 256MB module working in a reasonable size. The only commercial product I know of so far is a hybrid drive, with spinning platters and a MRAM cache. |
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f00bar
Joined: 02 Jan 2016
Posts: 137
Location: Darmstadt, Germany
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| Posted: Fri Aug 16, 2019 8:29 am Post subject: |
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| and one for me, please! |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Fri Aug 16, 2019 11:51 am Post subject: |
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| stamasd wrote: | | CPUShack wrote: | | CHips wrote: | Wow, that already existed since 198x?
But they still have not revolutionized the computer memories... Ssd and Ram convergence is still yet to happen...
Let's take one tray please ! |
They didnt scale well at all, so took a long time to make it work at usable scales and power usage |
Yeah getting the density took a few decades. I think only recently they got a 256MB module working in a reasonable size. The only commercial product I know of so far is a hybrid drive, with spinning platters and a MRAM cache. |
Yah Everspin demo'd it not long ago
Its slightly better then cold fusion 'it'll be ready in 2 years' LOL
3 Left of these
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