[Coco] Adapting a V9958 64-pin Chip to fit a Solderless Breadboard

Kip Koon computerdoc at sc.rr.com
Mon Dec 2 23:04:54 EST 2013 

Hi Luis!
I created a breadboard adapter sometime ago for the SDIP 64 socket that the
V9958 VDG fits, but I have not sent it off to be fabricated yet.  The design
files are finished I believe.  I need to check that though, because I
remember printing an actual size PCB layout and fitting the actual chip to
the printout like I usually do when finishing a PCB.  When I'm done with the
design, would you like one?  I can finish it up and get the PCB fabricated
and have them available assembled or unassembled as a kit.  I'll need to
find 0.7 pin spaced sockets for this PCB though.  I wouldn't want to have to
unsolder 64 pins!  Ouch!  
You mentioned that you were considering the V9990.  I remember something not
being as good as the V9958, so the V9958 is what I chose.  I don't remember
what that "something" was, maybe it was just the price of the chip at that
time, I just don't remember.  I am very interested in your Yamaha V9958
based VGA compatible Video Display PCB.  Please let me know how you are
doing with the designing of it.  Thank you for the design files for the 80
Column Video Display WordPak.  I appreciate it.  Thanks a bunch.  Take care
my friend.  
Kip

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Luis Antoniosi (CoCoDemus)
Sent: Thursday, November 28, 2013 2:25 PM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless
Breadboard

Hi Kip, did you have any progress on that ?

After my successfully try with 80 column card I want to move to a 9958 one.

I was think in soldering wires from an SDIP-64 socket but I'm having
problems even finding a sdip-64 socket.

So I ultimately thought that i should make the prototype on OSD Park,
becasue if I had to solder 4, 5  evem 10 wires for fixing missing
connections that would be by far better than soldering 64 pins !





On Fri, Apr 5, 2013 at 2:48 AM, Kip Koon <computerdoc at sc.rr.com> wrote:

> Luis,
> I have some disappointing news for you my friend.
> The advertised chip in that ad is exactly the same chip I received.  
> All markings on my chip exactly match the markings in that ad.
> Trust me, that is not a dip64 chip.  It is an sdip64 chip which stands 
> for "shrink dip".  The pins are closer together.  They are spaced 0.07"
apart.
> The pins are not spaced 0.1" apart.  Even the advertiser is the same.
> I don't think a dip64 version exists, unfortunately.  I wish it did.
> The Technical data book only mentions a shrink dip version of the chip 
> at the very beginning of the document.  It's a very interesting chip, 
> I just need to interface to it somehow.  Thanks for the heads up 
> though.  It was an excellent try.  The title of that ad is what lead 
> me to read it too and ultimately buy it.  If you want a dip64 version 
> of this chip, this is not it.
> Kip
>
> -----Original Message-----
> From: coco-bounces at maltedmedia.com 
> [mailto:coco-bounces at maltedmedia.com]
> On
> Behalf Of Luis Antoniosi (CoCoDemus)
> Sent: Thursday, April 04, 2013 3:34 PM
> To: CoCoList for Color Computer Enthusiasts
> Subject: Re: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless 
> Breadboard
>
> what is this ?
>
>
> http://www.ebay.com/itm/IC-V9958-YAMAHA-VDP-IC-MSX-DIP64-NEW-GOOD-QUAL
> ITY-1P CS-/300818499421?pt=LH_DefaultDomain_0&hash=item460a2e075d
>
>
> On Thu, Apr 4, 2013 at 4:27 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
>
> > Luis,
> > There is a dip-64 version?  The V9958 Technical Data Book says it is 
> > a shrink dip.  I'd love to get a dip-64 v9958.
> > Kip
> >
> > -----Original Message-----
> > From: coco-bounces at maltedmedia.com
> > [mailto:coco-bounces at maltedmedia.com]
> > On
> > Behalf Of Luis Antoniosi (CoCoDemus)
> >
> > You can find the DIP-64 version of the V9958 (aka msx-video). Is the 
> > same used on all msx2+ and Turbo Rs.
> >
> > On Thu, Apr 4, 2013 at 3:10 PM, Kip Koon <computerdoc at sc.rr.com> wrote:
> >
> > > Daniel,
> > > This is a much clearer version than I have.  However, the V9958 
> > > Technical Manual v1.0 only covers the differences.
> > > You will also need the V9938 Technical Data Book at the following
> > address.
> > > http://www.msxarchive.nl/pub/msx/docs/datasheets/v9938.pdf
> > > I have an excellent PDF of it, but I don't remember where I got 
> > > it, so I'll email  to anyone who needs it.  I'll post it here when 
> > > I find
> it.
> > > Kip
> > >
> > > -----Original Message-----
> > > From: coco-bounces at maltedmedia.com 
> > > [mailto:coco-bounces at maltedmedia.com]
> > > On
> > > Behalf Of Daniel Campos
> > > Sent: Thursday, April 04, 2013 9:26 AM
> > > To: CoCoList for Color Computer Enthusiasts
> > > Subject: Re: [Coco] Adapting a V9958 64-pin Chip to fit a 
> > > Solderless Breadboard
> > >
> > >
> > > http://primrosebank.net/computers/mtx/projects/mtxplus/V9958-Techn
> > > ic
> > > al
> > > -manua
> > > l_v1.0.pdf
> > >
> > > V9958 is used on the MSX2+ and TurboR MSX machines.
> > >
> > > Regards,
> > > Daniel
> > >
> > >
> > > 2013/4/4 Alan Jones <alwanbi at live.com>
> > >
> > > > Hi Kip,
> > > > Can you point me to the data sheet for V9958 chip?
> > > > I would like to take a look at it.
> > > > Thanks...
> > > >
> > > > Alan
> > > >
> > > > -----Original Message-----
> > > > From: coco-bounces at maltedmedia.com 
> > > > [mailto:coco-bounces at maltedmedia.com]
> > > > On
> > > > Behalf Of Kip Koon
> > > > Sent: Thursday, April 4, 2013 3:44 AM
> > > > To: Coco Email List
> > > > Subject: [Coco] Adapting a V9958 64-pin Chip to fit a Solderless 
> > > > Breadboard
> > > >
> > > > Has anyone ever adapted a V9958 Video Graphics Controller 64-pin 
> > > > chip with tiny spacing on the pins to fit a solderless breadboard?
> > > > I was not aware of this very small pin spacing when I was 
> > > > researching the chip.  I liked the chip's capabilities and at
> > > > $6.40 a chip, the price was too good to pass up!
> > > > This will take some doing.  I may have to compromise and use an 
> > > > earlier chip.  Maybe the TMS9918 or TMS9928.  Were there any 
> > > > others in that chip line.
> > > >
> > > > Were there other chip manufacturers with interesting Video 
> > > > Graphics chips I should consider?
> > > >
> > > > Kip
> > > >
> > > >
> > > > --
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> > > > http://five.pairlist.net/mailman/listinfo/coco
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