| View previous topic :: View next topic |
| Author |
Message |
UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
|
 Posted: Wed Dec 30, 2009 9:18 am Post subject: |
 |
|
| bccwchan wrote: |
Hi Paolo,
I have one TDM chip similar to MITE2,
it reads on front
TDM CIA2
124582 A00-00
TC180GJ4YH-0020
Do you have any information about it?
Thanks in advance,
Billy
Bccwchan |
Hi,
it's the same kind of ASIC: Toshiba gate array, up to 560K usable gates (CMOS). The first line, TDM CIA2, denotes the customer/owner of the ASIC's logic scheme (TDM, maybe Tandem Computer or something similar) and the specific chip's function (CIA2). What's "CIA2"? I don't know! Usually these are acronyms for the ASIC function/purpose. The second line is the "generic" component name, that is the name of the gate array in itself: every gate array of this family (TC180G) has a similar name, regardless of its specific function.
This is a datasheet (family TC160G, similar but with less usable gates):
http://www.datasheetcatalog.com/datasheets_pdf/T/C/1/6/TC160G.shtml.
In my previous post there is an error (my apologies!!!): Toshiba TC180G are 560K, not 18K gate arrays (0.5 microns, 3.3V operation, sea-of-gate layout).
IMHO this is an useful document for everyone interested in Toshiba's custom chips: http://www.cadfamily.com/download/EDA/MicroChip/CMOS%20ASIC.Design.Manual.pdf.
Paolo |
|
| Back to top |
|
 |
bccwchan
Joined: 20 Sep 2004
Posts: 2585
Location: Hong Kong
|
| Posted: Wed Dec 30, 2009 8:03 pm Post subject: |
|
|
Hi Paolo,
Thanks for your useful information.
I bought the Toshiba in 2005 but know nothing about it. Now its id have been found.
Thank you very much.
Happy New Year to all.
Billy
Bccwchan |
|
| Back to top |
|
|
lither
Joined: 04 Dec 2005
Posts: 1362
Location: Taiwan
|
| Posted: Tue Feb 02, 2010 3:39 am Post subject: |
|
|
| susl45 wrote: |
IBM PR233 blank top
Lither have some I remembered. Maybe you can show some of yours(top and bottom)
|
here is the picture
http://www.cpu-world.com/forum/viewtopic.php?t=12736&highlight=ibm+6x86
| susl45 wrote: | but still missed several blank top cyrix ES (I think they are sample chips as well)  |
i am sure they for test but not sure if they are sample or not
here is the story
2 years ago , i bought a bundle of chips from an engineer belonged to RD team of motherboard company )
including IBM 6x86 C4 sample , the blank 6x86, and several AMD /intel sample
he told me these chips were send to their team for test and after test they were stored in some closet
a few years later , their company was moving to a new house .
before they were sold for scrap , he picked up some
actually , he was quite astonished by the price i offered and sound very regreted that he didnt grasp more
although i am lucky to get about 20 chips from him. , i still feel sad about those chips scraped ( actually most of the chips they tested were scrapped)... |
|
| Back to top |
|
|
susl45
Joined: 27 Dec 2007
Posts: 3179
Location: CHU
|
| Posted: Tue Feb 02, 2010 9:18 am Post subject: |
|
|
| lither wrote: | | susl45 wrote: |
IBM PR233 blank top
Lither have some I remembered. Maybe you can show some of yours(top and bottom)
|
here is the picture
http://www.cpu-world.com/forum/viewtopic.php?t=12736&highlight=ibm+6x86
| susl45 wrote: | | but still missed several blank top cyrix ES (I think they are sample chips as well) |
i am sure they for test but not sure if they are sample or not
here is the story
2 years ago , i bought a bundle of chips from an engineer belonged to RD team of motherboard company )
including IBM 6x86 C4 sample , the blank 6x86, and several AMD /intel sample
he told me these chips were send to their team for test and after test they were stored in some closet
a few years later , their company was moving to a new house .
before they were sold for scrap , he picked up some
actually , he was quite astonished by the price i offered and sound very regreted that he didnt grasp more
although i am lucky to get about 20 chips from him. , i still feel sad about those chips scraped ( actually most of the chips they tested were scrapped)... |
Hi lither, thanks for the info.
The code on the bottom of my IBM blank code is different from yours, mine is:
"971127 "
"258F"
so production code is 1997 11th week? the format is different from other IBM 6x86.
Maybe Neon_WA know more details 
Yes, I am also very regreted that had not grabed the whole lot (as the seller did not send me photos of the whole lot.., missed quite a lot sample chips )
_________________
**********************
Trade list
http://www.cpu-world.com/forum/viewtopic.php?t=15832
************************* |
|
| Back to top |
|
|
|
|
|
|
|
You can post new topics in this forum
You can reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum
|
|
Powered by phpBB © 2001 phpBB Group
|
