26 Aug
2007
26 Aug
'07
6:34 a.m.
Somehow I missed the original, but this are my 2 cents;
Not in my databooks.
Static NMOS RAM 8k x 8
Static NMOS RAM 2k x 8
http://electrickery.xs4all.nl/comp/dai/doc/AM9511.pdf. If you decide not
to use this part or has some spare, I am very interested. I still have a
DAI computer with a socket waiting for such a chip
(http://www.xs4all.nl/~fjkraan/comp/dai/index.html).
A Z80 CTC clone
Fred Jan
Message: 6
Date: Fri, 24 Aug 2007 23:52:47 +0100 (BST)
From: ard at p850ug1.demon.co.uk (Tony Duell)
Subject: Re: Building my own classic style computer update
To: cctalk at classiccmp.org
Message-ID: <m1IOi1N-000J3FC at p850ug1>
Content-Type: text/plain
Nec states it is pin and software compatible in their 'Microcomputers
1983/1984' data book.
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
No idea
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
No idea
AMD AM9511A-1DC
AMD floating point chip
> Sharp LH0081A
>
A Z80 PIO clone
Sharp LH0082
No idea