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wepwawet
Joined: 18 Mar 2004
Posts: 2574
Location: Seligenstadt - Germany
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 Posted: Sat Dec 30, 2006 11:01 am Post subject: Motorola 2901 white |
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My latest addition: a white Motorola 2901.
Funny that a few weeks after the first white Motorola chip that I've ever seen appears I happen to own an own:-) |
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wepwawet
Joined: 18 Mar 2004
Posts: 2574
Location: Seligenstadt - Germany
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| Posted: Sat Dec 30, 2006 11:03 am Post subject: |
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| CPUShack wrote: | | here is an interesting TI TMS1000 in a very early high densisty skinny DIP |
Do you know if there was any functional sense in those split pins? |
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CPUShack
Joined: 16 Jun 2003
Posts: 12831
Location: State of Jefferson, USA
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chip68
Joined: 19 Oct 2004
Posts: 1056
Location: Central Pennsylvania
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| Posted: Sat Dec 30, 2006 12:20 pm Post subject: |
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Slots like that are often used for thermal/mechanical stress relief. Could be that they were used to lower the bending force required in setting up the pins, since the leadframe starts out completely flat.
- CMW |
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CPUShack
Joined: 16 Jun 2003
Posts: 12831
Location: State of Jefferson, USA
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| Posted: Sun Dec 31, 2006 2:36 am Post subject: |
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perhaps, but the force to bend them is already very low.
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Visit The CPU Shack of microprocessor history and information. |
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jrmunro
Joined: 01 Feb 2003
Posts: 2842
Location: Vancouver, Canada
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| Posted: Sat Apr 14, 2007 7:18 pm Post subject: |
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Very nice chip.
John |
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chiptalk
Joined: 17 Jun 2003
Posts: 1837
Location: USA
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| Posted: Sat Apr 14, 2007 9:56 pm Post subject: |
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Very very nice chip Genna. You were quick with that buy-it-now. 
I asked if he had another right after it sold, but he did not.  |
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jrmunro
Joined: 01 Feb 2003
Posts: 2842
Location: Vancouver, Canada
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| Posted: Sun Apr 22, 2007 3:02 am Post subject: |
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I just bought one of these also.
John |
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Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
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| Posted: Sat May 05, 2007 10:14 am Post subject: |
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| Found this one - at least 68000 is really vintage technology |
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debs3759
Joined: 18 Jan 2006
Posts: 5128
Location: In the computer room
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| Posted: Tue May 08, 2007 6:08 am Post subject: |
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| Unzlbunzl wrote: | | Found this one - at least 68000 is really vintage technology |
Datecode = week 23, 2000. Not vintage and also not very rare - just too new to be in many collections
Early 68000 may be considered vintage, but the 68SEC part numbers are a much more recent, lower power version of the 68000 core.
In fact, although this part number is no longer available new, the 16MHz part can be bought new from Freescale (although it is no longer in production). This chip ceased to be available for ordering on 30 Jun 2006 and for delivery on 30 Dec 2006.
This chip may be better posted in the "General Discussion (Modern chips)" area (I'm not disputing that it may be the only one known to be in a collection, as I have not checked that...)
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OMG, I finally found out what's wrong with my brain:
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Debs |
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isa-d
Joined: 16 Aug 2006
Posts: 1522
Location: Italy
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| Posted: Fri May 11, 2007 12:42 pm Post subject: |
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| Some of the last addiction at my collection. |
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el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
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| Posted: Fri May 11, 2007 2:03 pm Post subject: |
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(Awesome chips, nice finds Debs!)
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My microprocessor collection: The Gecko's CPU Library |
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chiptalk
Joined: 17 Jun 2003
Posts: 1837
Location: USA
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| Posted: Fri May 11, 2007 2:18 pm Post subject: |
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| Love the MC6809L! |
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debs3759
Joined: 18 Jan 2006
Posts: 5128
Location: In the computer room
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| Posted: Sat May 12, 2007 5:17 am Post subject: |
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| isa-d wrote: | | Some of the last addiction at my collection. |
hehe, I'm not sure if that was a typo or a joke Nice finds.
What is the NEC chip? I know the D765 (Floppy Drive Controller), but not similar part numbers around it....
| el_gecko wrote: | | (Awesome chips, nice finds Debs!) |
LOL, I certainly wouldn't complain if it had been me that found them
_________________
OMG, I finally found out what's wrong with my brain:
On the left side, there's nothing right, and on the right side there's nothing left!
Debs
Last edited by debs3759 on Sat May 12, 2007 6:25 am; edited 1 time in total |
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el_gecko
Joined: 25 May 2005
Posts: 1553
Location: Nice, France
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| Posted: Sat May 12, 2007 6:23 am Post subject: |
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| debs3759 wrote: |
| el_gecko wrote: | | (Awesome chips, nice finds Debs!) |
LOL, I certainly would complain if it had been me that found them |
LOL, sorry I made a mistake, dont really know why  
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My microprocessor collection: The Gecko's CPU Library |
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