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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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 Posted: Mon Jun 15, 2020 4:52 pm Post subject: CPU Shack: Intel 8741/42 - Offers Accepted |
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The Intel UPI-41/42 is a version of the MCS-48 used mostly for controlling simpler peripherals but found wide use about everywhere
D1 D8041A/8641A 1224E 2643-9729 ROM version $3
D2 D8041A/8641A 1330E 2643-9729 ROM version $3
SOLD D3 MD8741A/B Military $7
SOLD D4 D8741A '77 left print $1
SOLD D5 D8741A '77 right print $1
D6 D8741A S4427 Vertical print $4 new sspec
SOLD D7 D8642 2062 ROM version $2
SOLD OUT D8 D8742 '77 $1
SOLD D9 D8742 '82 $1
SOLD D10 QD8742 w/ Burn-in Screening $3
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Last edited by CPUShack on Wed Jun 17, 2020 4:07 pm; edited 6 times in total |
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Mon Jun 15, 2020 4:58 pm Post subject: |
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| D4 D8741A '77 left print $1 |
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tunder10
Joined: 08 Nov 2006
Posts: 5001
Location: italy
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| Posted: Tue Jun 16, 2020 1:33 am Post subject: |
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| D3 MD8741A/B Military $7 thanks |
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tunder10
Joined: 08 Nov 2006
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| Posted: Tue Jun 16, 2020 1:34 am Post subject: |
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| D7 D8642 2062 ROM version $2 thanks |
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stamasd
Joined: 05 Jun 2014
Posts: 1311
Location: Connecticut
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| Posted: Tue Jun 16, 2020 6:45 am Post subject: |
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| Hmm. Why do the ROM versions have windows? The windows were back then a large part of what made the chips expensive. |
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ph4nt0m
Joined: 01 Jan 2018
Posts: 812
Location: Europe
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| Posted: Tue Jun 16, 2020 8:34 am Post subject: |
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2x D8 D8742 '77 $1
D9 D8742 '82 $1
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Tue Jun 16, 2020 11:19 am Post subject: |
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| stamasd wrote: | | Hmm. Why do the ROM versions have windows? The windows were back then a large part of what made the chips expensive. |
Indeed, but they didn't have a MaskROM version available with the exact same specs, so they painted over the windows and called it a ROM version
They did this with EPROMs as well, like the 2608
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CPUShack
Joined: 16 Jun 2003
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aberco
Joined: 05 Sep 2013
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Location: Paris France
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| Posted: Tue Jun 16, 2020 4:52 pm Post subject: |
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| D5 D8741A '77 right print $1 |
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Twinrocket
Joined: 04 Apr 2012
Posts: 558
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| Posted: Wed Jun 17, 2020 12:57 pm Post subject: |
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D1 D8041A/8641A 1224E 2643-9729 ROM version $2
D2 D8041A/8641A 1330E 2643-9729 ROM version $2 |
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stamasd
Joined: 05 Jun 2014
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Location: Connecticut
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| Posted: Wed Jun 17, 2020 2:46 pm Post subject: |
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D10 QD8742 w/ Burn-in Screening
$2? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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