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LZF7000
Joined: 10 Aug 2006
Posts: 258
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 Posted: Wed Apr 18, 2007 12:46 pm Post subject: Hitachi 4004????? [topic back from the dead] |
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4004, DIP 16, in the board. & p4201
this is 4004 family.?????? |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Wed Apr 18, 2007 12:56 pm Post subject: |
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That is a Hitatchi logo on the bottom chip. I do not think that is an Intel 4004. Hitachi part numbers start with HD, so the part number would be HD35404, but I can not find any data. I also would not expect to find a 4004 on the edge of a board like that.
Edit: I see the P4201A is a clock generator. Its datasheet states " Complete Clock requirements for MCS-40 systems" So maybe I am wrong. If you post a pictue of the back of the board it may be possible to trace the tracks between the chips and determine if it is possibly a 4004. |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Wed Apr 18, 2007 1:42 pm Post subject: |
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Pinouts.
Last edited by JAC on Fri Apr 20, 2007 5:37 pm; edited 1 time in total |
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JAC
Joined: 24 Jul 2005
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Fri Apr 20, 2007 8:31 am Post subject: |
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This would be a nice find!
Can you show us the rest of the board and maybe tell us something where it comes from? |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Fri Apr 20, 2007 10:06 am Post subject: |
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| Yes, it would be good to see the back of the board showing the traces for further investigation. Also maybe a picture of the rest of the board/machine? |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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Unzlbunzl
Joined: 30 Jan 2007
Posts: 468
Location: Graz, Austria
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| Posted: Fri Apr 20, 2007 12:17 pm Post subject: |
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| Quote: | | my best guess is a shift register but I could be wrong |
like other HD35xxxxxxxs |
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CPUShack
Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA
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wepwawet
Joined: 18 Mar 2004
Posts: 3019
Location: Seligenstadt - Germany
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| Posted: Fri Apr 20, 2007 2:00 pm Post subject: |
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therefor it would be nice to see the rest of the board.
maybe there's a boring microcontroller that shows it can't be a 4004 cpu. |
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LZF7000
Joined: 10 Aug 2006
Posts: 258
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| Posted: Sat Apr 21, 2007 12:39 pm Post subject: send mail to japan. |
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If send mail to japan , ask Hitatchi server will better & easy .
My english no good. |
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LZF7000
Joined: 10 Aug 2006
Posts: 258
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| Posted: Sat Apr 21, 2007 1:12 pm Post subject: sent to Hitachi. |
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The ic information question alrready sent to Hitachi.
but I don't know waite how long time . |
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Marcin
Joined: 02 Jan 2005
Posts: 8519
Location: Poland
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| Posted: Sat Apr 21, 2007 2:42 pm Post subject: Re: sent to Hitachi. |
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| LZF7000 wrote: | The ic information question alrready sent to Hitachi.
but I don't know waite how long time . |
Propably never ...
_________________
Visit ABC CPU - Virtual CPU Museum. |
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chip68
Joined: 19 Oct 2004
Posts: 1024
Location: Central Pennsylvania
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| Posted: Sun Apr 22, 2007 1:23 am Post subject: |
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| JAC wrote: | | Just notice on the Intel datasheet Vss is marked as most positive voltage. I have always known Vss to be ground. |
See my explanation HERE.
- CMW |
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JAC
Joined: 24 Jul 2005
Posts: 3469
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| Posted: Sun Apr 22, 2007 5:00 am Post subject: |
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| chip68 wrote: | | JAC wrote: | | Just notice on the Intel datasheet Vss is marked as most positive voltage. I have always known Vss to be ground. |
See my explanation HERE.
- CMW |
ah.. thank you. |
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