31 Dec
2008
31 Dec
'08
4:40 p.m.
Subject: Re: What kind of IC is this
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Wed, 31 Dec 2008 22:50:52 +0000 (GMT)
To: cctalk at classiccmp.org
Yes, but IIRC the 8048 series (common in classic computer stuff) doesn't...
-tony
My fractional portion of currency is that the 630x is a hitachi varient of the
680x (6800 single chip mpus). I've seen and have some them from older hard
disks and DC300 tape drives that had mechanically expired.
Allison
If
you're lucky, eitehr th microcontroller is old enough not to
have any
security features, or they're not used. In which case you remove
the chip
from the PCB and stick it in a suitable programmer.
Even the original Intel 8051/8751, circa 1980, has security
bits. :-( There are ways to get around (at least) those, though. 
9 Jan
9 Jan
1:06 a.m.
On Wednesday 31 December 2008 07:40:03 pm Allison wrote:
I have some of these, HD6303Y in particular, and a databook that covers
them. That particular chip was used with an external 27C256 in a musical
keyboard where an upgrade offered by the mfr. replaced it with a masked part,
so I got some nice salvage out of the deal. :-)
Rather odd packaging, though, 64-pin "shrunk" DIP. I did manage to snag a
wire-wrap socket for these as a sample at a trade show, but I'm still either
going to have to drill a bunch of holes in my perfboard or bend the pins or
something to use it.
Maybe one of these days...
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, a critter that can
be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin
Subject: Re:
What kind of IC is this
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Wed, 31 Dec 2008 22:50:52 +0000 (GMT)
To: cctalk at classiccmp.org
Yes, but IIRC the 8048 series (common in classic computer stuff)
doesn't...
-tony
My fractional portion of currency is that the 630x is a hitachi varient of
the 680x (6800 single chip mpus). I've seen and have some them from older
hard disks and DC300 tape drives that had mechanically expired.
Allison If
you're lucky, eitehr th microcontroller is old enough not to
have any security features, or they're not used. In which case you
remove the chip from the PCB and stick it in a suitable programmer.
Even the original Intel 8051/8751, circa 1980, has security
bits. :-( There are ways to get around (at least) those, though. 
27 Apr
27 Apr
12:52 p.m.
On Fri, Jan 9, 2009 at 5:06 AM, Roy J. Tellason <rtellason at verizon.net> wrote:
I have a board someone gave me to strip for parts - it has some
7-segment LEDs and a few other bits of interest (it looks like the
front panel for some sort of electronic instrument). I wasn't
planning on extracting the CPU, but I could.
Difficulties with working with the package format are certainly
coloring my opinion about wanting to re-use it. I have a couple of
"real" 6800s and 6802s. I guess I'd have to read the 6303 datasheet
to determine if it had any features that made it interesting enough to
attempt to reuse.
-ethan
My fractional
portion of currency is that the 630x is a hitachi varient of
the 680x (6800 single chip mpus)...
I have some of these, ?HD6303Y in particular, ?and a databook that covers
them...
Rather odd packaging, ?though, ?64-pin "shrunk" DIP. ?I did manage to snag a
wire-wrap socket for these as a sample at a trade show, ?but I'm still either
going to have to drill a bunch of holes in my perfboard or bend the pins or
something to use it.
5669
days inactive
5785
days old
2 comments
3 participants
participants (3)
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ajp166＠bellatlantic.net -
ethan.dicks＠gmail.com -
rtellason＠verizon.net