24 Aug
2007
24 Aug
'07
5:42 p.m.
Subject: Re: Building my own classic style computer update
From: ard at p850ug1.demon.co.uk (Tony Duell)
Date: Fri, 24 Aug 2007 23:52:47 +0100 (BST)
To: cctalk at classiccmp.org
It is an exact bug for bug and hidden opcode match for Z80/MK3880.
I have been scrounging for parts for my computer, and I believe I have hit
the jackpot. A friend of mine set me up with some older Seiko control system
boards, various revisions, from the late 80s. On them are many ICs,
including RAMs, Z80 CPUs, and PIOs, as well as some AMD Arithmetic
processors, a Z80 SIO/2, and other various components. I want to try to make
my computer from these components. Can anyone point me in a good direction
for the datasheets, preferably online, for these mostly obsolete ICs? Some
of them I don't even know what they are, and some I cannot find online,
presumably because they are obsolete. Here's a partial list of them:
NEC D780C
AFAIK it's an exact equivaletn of a Z80 CPU. I've never found a circuit
that works with one and not the other. > NEC D770008AC-6
You sure of that number?
NEC D4364C-15L
I guess that's a 64K*1 DRAM, similar to a 4164 NEC D8251AC
Equivalent to the Intel 8251, National Semiconductor INS8251, etc. It's a
USART > NEC D449C
6116 ram 2kx8
AMD
AM9511A-1DC
AMD floating point chip
Sharp LH0081A
Sharp LH0082
No idea
Intel 8339
Intel 8325
Are you sure you've not given me the date codes? Intel K3235001
No diea
6330
days inactive
6330
days old
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