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

Mon Dec 2 23:07:40 EST 2013

Afaik the v9990 is SMD only. I'm interested in one adapter.

Thxs,
On 2013-12-02 11:05 PM, "Kip Koon" <computerdoc at sc.rr.com> wrote:

> 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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