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Cpuswe
Joined: 15 Mar 2005
Posts: 2214
Location: Karlskrona, Sweden
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 Posted: Sat Jan 14, 2006 1:11 pm Post subject: Found inside a DEC Microvax 3100 |
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Where down in the basement at work going through some computer junk. Found these in a DEC Microvax 3100 and since mounted in sockets they had to come home with me.
What are they?
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sat Jan 14, 2006 1:48 pm Post subject: |
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| they look like eproms? look under the white sticker. |
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fRaSsL
Joined: 31 Mar 2003
Posts: 1570
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| Posted: Sat Jan 14, 2006 5:13 pm Post subject: |
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16bit EPROM. Not very common and still expensive to buy.
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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| Posted: Sat Jan 14, 2006 6:41 pm Post subject: |
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| fRaSsL wrote: | | 16bit EPROM. Not very common and still expensive to buy. |
ehh you must have misread hrm, they are both 1Mbit EPORMs, very common
27C210 = 271024 = CMOS 64k x 16
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jd
Joined: 01 Jan 2006
Posts: 1562
Location: Canada
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| Posted: Sat Jan 14, 2006 10:57 pm Post subject: |
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Ok again wrong... and some right 
Since we now know I'm an EProm freak 
The bottom one is----->
Am27C1024, 1 Megabit (65 Kx 16-Bit) CMOS EPROM, Advanced Micro Devices, RFQ · Semiconductor Data ... AM27C1024, Electronic Component / Semiconductor . |
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CPUShack
Joined: 16 Jun 2003
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Cpuswe
Joined: 15 Mar 2005
Posts: 2214
Location: Karlskrona, Sweden
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| Posted: Sun Jan 15, 2006 5:28 am Post subject: |
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Ok, thanks! A simple "its eproms" would have been enough!
They are tradeable if anyone wants them.
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JAC
Joined: 24 Jul 2005
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| Posted: Sun Jan 15, 2006 5:46 am Post subject: |
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| I said it |
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fRaSsL
Joined: 31 Mar 2003
Posts: 1570
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| Posted: Sun Jan 15, 2006 6:07 am Post subject: |
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| CPUShack wrote: | | fRaSsL wrote: | | 16bit EPROM. Not very common and still expensive to buy. |
ehh you must have misread hrm, they are both 1Mbit EPORMs, very common
27C210 = 271024 = CMOS 64k x 16 |
No,no.I'm right. 16bit x 64k... = 16bit EPROM.  All bits are parallelon the outside of the EPROM
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CPUShack
Joined: 16 Jun 2003
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jd
Joined: 01 Jan 2006
Posts: 1562
Location: Canada
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| Posted: Sun Jan 15, 2006 8:30 pm Post subject: |
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...tis what I said  |
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Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
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| Posted: Mon May 07, 2007 3:35 pm Post subject: |
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| This is what i found in an microvax 3100 80. But wheres the cpu? |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Mon May 07, 2007 3:44 pm Post subject: |
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| That is a nice board.. display it! |
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Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
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| Posted: Mon May 07, 2007 5:37 pm Post subject: |
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| that a good idea - i would have kept the whole thing for experimenting, but i noticed there was no graphics card inside (after 5 months storage), so i took it apart which let 2 S80C188XL12 and MC68EC020FG25 come out of it at least. notice: somebody should make some peripherals for harddisks to let them run ms dos or mac os! |
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Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
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| Posted: Mon May 07, 2007 5:47 pm Post subject: |
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| done... next to my 1936 Puch bycicle frame and vw beetle hub cap - i have the car for it too |
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