11 Apr
2021
11 Apr
'21
7:08 a.m.
Does anyone recall what kind of hardware/software was used to read/write the
early Mitsubishi Melcard EPROM cards with the PCB edge connector contacts?
It was explained to me by someone that a EPROM programmer could be used,
however I've never seen a socket which fits the edge card connector of these
cards.
I've uploaded an image of the edge contact end of this type of card here:
http://www.hammondorganservice.com/downloads/images/melcard.jpg
Seems these were also available in the SRAM variety as well.
Thanks
Don Resor
11 Apr
11 Apr
10:37 a.m.
On 4/11/21 7:08 AM, D. Resor via cctalk wrote:
Does anyone recall what kind of hardware/software was
used to read/write the
early Mitsubishi Melcard EPROM cards with the PCB edge connector contacts?
It was explained to me by someone that a EPROM programmer could be used,
however I've never seen a socket which fits the edge card connector of these
cards.
I don't know if it's exactly what you're looking for, but there's a
potload of information on Bitsavers, starting with PDF page 115:
http://www.bitsavers.org/pdf/mitsubishi/Mitsubishi_VLSI_MOS_Memory_RAM_ROM_…
--Chuck
10:38 a.m.
Isnt that the epson card standard?
Enviado do meu Tele-Movel
Em dom, 11 de abr de 2021 14:37, Chuck Guzis via cctalk <
cctalk at classiccmp.org> escreveu:
On 4/11/21 7:08 AM, D. Resor via cctalk wrote:
Does anyone recall what kind of hardware/software
was used to read/write
the
early Mitsubishi Melcard EPROM cards with the PCB
edge connector
contacts?
It was explained to me by someone that a EPROM programmer could be used,
however I've never seen a socket which fits the edge card connector of
these
cards.
I don't know if it's exactly what you're looking for, but there's a
potload of information on Bitsavers, starting with PDF page 115:
http://www.bitsavers.org/pdf/mitsubishi/Mitsubishi_VLSI_MOS_Memory_RAM_ROM_…
--Chuck
5:08 p.m.
I don't know. I do know that Roland also used something similar though the length of
some of the contact points are different from the Mitsubishi Melcard.
Don Resor
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Alexandre Souza via
cctalk
Sent: Sunday, April 11, 2021 10:38 AM
To: Chuck Guzis <cclist at sydex.com>; General Discussion: On-Topic and Off-Topic
Posts <cctalk at classiccmp.org>
Subject: Re: Mitsubishi Melcard (edge connect type)
Isnt that the epson card standard?
Enviado do meu Tele-Movel
Em dom, 11 de abr de 2021 14:37, Chuck Guzis via cctalk < cctalk at classiccmp.org>
escreveu:
On 4/11/21 7:08 AM, D. Resor via cctalk wrote:
Does anyone recall what kind of hardware/software
was used to
read/write
the
early Mitsubishi Melcard EPROM cards with the PCB
edge connector
contacts?
It was explained to me by someone that a EPROM programmer could be
used, however I've never seen a socket which fits the edge card
connector of
these
cards.
I don't know if it's exactly what you're looking for, but there's a
potload of information on Bitsavers, starting with PDF page 115:
http://www.bitsavers.org/pdf/mitsubishi/Mitsubishi_VLSI_MOS_Memory_RAM
_ROM_and_Memory_Cards_Jan91.pdf
--Chuck
6:15 p.m.
After digging a bit further and disassembling a card I have here which was defective and
peeling apart. I now know that this is a Seiko-Epson not a Mitsubishi Melcard.
Seiko-Epson are 40 Contact Traces. Mitsubishi are 50 Contact Traces. I also found a data
sheet from the p/n silk screened on the PWB of the card here:
https://www.datasheetarchive.com/pdf/download.php?id=11082c69f543ba2dc23ee7…
Thanks for giving me a shove in the right direction.
Don Resor
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of D. Resor via cctalk
Sent: Sunday, April 11, 2021 5:09 PM
To: 'Alexandre Souza' <alexandre.tabajara at gmail.com>; 'General
Discussion: On-Topic and Off-Topic Posts' <cctalk at classiccmp.org>
Subject: RE: Mitsubishi Melcard (edge connect type)
I don't know. I do know that Roland also used something similar though the length of
some of the contact points are different from the Mitsubishi Melcard.
Don Resor
-----Original Message-----
From: cctalk <cctalk-bounces at classiccmp.org> On Behalf Of Alexandre Souza via
cctalk
Sent: Sunday, April 11, 2021 10:38 AM
To: Chuck Guzis <cclist at sydex.com>; General Discussion: On-Topic and Off-Topic
Posts <cctalk at classiccmp.org>
Subject: Re: Mitsubishi Melcard (edge connect type)
Isnt that the epson card standard?
Enviado do meu Tele-Movel
Em dom, 11 de abr de 2021 14:37, Chuck Guzis via cctalk < cctalk at classiccmp.org>
escreveu:
On 4/11/21 7:08 AM, D. Resor via cctalk wrote:
Does anyone recall what kind of hardware/software
was used to
read/write
the
early Mitsubishi Melcard EPROM cards with the PCB
edge connector
contacts?
It was explained to me by someone that a EPROM programmer could be
used, however I've never seen a socket which fits the edge card
connector of
these
cards.
I don't know if it's exactly what you're looking for, but there's a
potload of information on Bitsavers, starting with PDF page 115:
http://www.bitsavers.org/pdf/mitsubishi/Mitsubishi_VLSI_MOS_Memory_RAM
_ROM_and_Memory_Cards_Jan91.pdf
--Chuck
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days inactive
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days old
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