15 Dec
2018
15 Dec
'18
11:43 a.m.
On 12/15/2018 1:22 AM, Rod G8DGR via cctalk wrote:
I have an idea to produce an MM-8 clone using RAM
that acts like core when turned off.
Can anybody suggest a chip that will do this?
Rod Smallwood
Sent from Mail for Windows 10
I used Everspin MRAM chips for my PDP-8e memory cards. It's just like
SRAM, fast at 35 ns, and unlimited read/write endurance.
Only drawback is it's 3.3 volts only. I just used level converters. It's
a magnetoresistive memory, feels just like core.
$12 for a 64K x 16 chip at Digikey.
Bob
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
15 Dec
15 Dec
11:48 a.m.
1201.. 1201 .. Processing large amount of data...
Rod
Sent from Mail for Windows 10
From: Bob Rosenbloom via cctalk
Sent: 15 December 2018 16:45
To: cctalk at classiccmp.org
Subject: Re: Core memory emulator using non volatile ram.
On 12/15/2018 1:22 AM, Rod G8DGR via cctalk wrote:
I have an idea to produce an MM-8 clone using RAM
that acts like core when turned off.
Can anybody suggest a chip that will do this?
Rod Smallwood
Sent from Mail for Windows 10
I used Everspin MRAM chips for my PDP-8e memory cards. It's just like
SRAM, fast at 35 ns, and unlimited read/write endurance.
Only drawback is it's 3.3 volts only. I just used level converters. It's
a magnetoresistive memory, feels just like core.
$12 for a 64K x 16 chip at Digikey.
Bob
--
Vintage computers and electronics
www.dvq.com
www.tekmuseum.com
www.decmuseum.org
2046
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2046
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