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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Mon Aug 28, 2023 2:04 pm Post subject: CPU Shack: Rad Hard McDonnell Douglas MDC281 CPUs - SOLD |
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The McDonnell Douglas MDC281 was one of the first implementations of the MUIL-STD-750A processor.
It was released in 1984 on a 4 micron rad hard CMOS/SOS process and implemented the 1750A CPU on 3 chips on a 64 pin MCM DIP
The 3 chips were a Control Unit, Execution Unit and Interrupt Unit.
These are radiation hardened by design, topography, and process, and can withstand over 140MeV charges with no upsets.
The MDC was used in the main flight controller of the F-15E Strike Eagle, the HUD and power plat controllers of the C-17 Cargo plane, as well as many sattelites.
I have 2 versions
One has 3 20MHz chips in a 20MHz rated module, and one oddball (with a lower serial #) used a 15MHz CU in the 20MHz Module
Each come with their own case
9x MDC281-20MGB $125
SOLDx MDC281-20MGB w/ one 15MHz CU $140
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Last edited by CPUShack on Tue Aug 29, 2023 1:05 am; edited 2 times in total |
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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dennydo
Joined: 22 Feb 2021
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Bator
Joined: 28 Oct 2013
Posts: 1285
Location: Russia / Yakutia & Siberia
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| Posted: Mon Aug 28, 2023 2:57 pm Post subject: |
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2"MDC281-20MGB $125
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Last edited by Bator on Mon Aug 28, 2023 3:04 pm; edited 1 time in total |
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xhoba
Joined: 20 Apr 2009
Posts: 4596
Location: Picardie, France
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xi11west
Joined: 07 Mar 2005
Posts: 1526
Location: Houston, TX
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| Posted: Mon Aug 28, 2023 3:01 pm Post subject: |
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| 1x MDC281-20MGB $125 |
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dps
Joined: 01 Jun 2009
Posts: 2717
Location: Saint-Petersburg, Russia
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| Posted: Mon Aug 28, 2023 3:25 pm Post subject: |
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| 1x MDC281-20MGB $125 |
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Chriscosmo12
Joined: 14 May 2023
Posts: 426
Location: Texas, USA
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| Posted: Mon Aug 28, 2023 4:02 pm Post subject: |
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1x MDC281-20MGB $125
Hopefully in fairly good condition. Thanks!
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Vegeta
Joined: 13 Apr 2013
Posts: 7049
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| Posted: Mon Aug 28, 2023 5:39 pm Post subject: |
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1x MDC281-20MGB $125
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Williac
Joined: 25 Feb 2022
Posts: 933
Location: Canada
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| Posted: Mon Aug 28, 2023 7:14 pm Post subject: |
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| 1x MDC281-20MGB $125 |
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yk
Joined: 17 Oct 2011
Posts: 539
Location: CN
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| Posted: Mon Aug 28, 2023 11:58 pm Post subject: |
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| 1x MDC281-20MGB $125 |
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tunder10
Joined: 08 Nov 2006
Posts: 5001
Location: italy
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| Posted: Tue Aug 29, 2023 2:09 am Post subject: |
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| MDC281-20MGB $125 for me if possible thanks |
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mavroxur
Joined: 06 Jul 2005
Posts: 1192
Location: Wichita Falls, TX
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| Posted: Tue Aug 29, 2023 6:38 pm Post subject: |
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| If any are left, I'll take one please |
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