[sdiy] SRAMs 2114 vs 6514 - whats the difference ?

[Mike Bryant]

The 2xxx series SRAMs were in NMOS, whereas 6xxx series were in early metal gate CMOS.   The 2xxx series used more power but tended to be slightly more reliable at first, but that advantage disappeared by the early 80s.
________________________________
From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of Didrik Madheden via Synth-diy <synth-diy at synth-diy.org>
Sent: 06 May 2024 09:08
To: Florian Anwander <fanwander at mnet-online.de>
Cc: *SYNTH DIY <synth-diy at synth-diy.org>
Subject: Re: [sdiy] SRAMs 2114 vs 6514 - whats the difference ?

6514 seems to use a tenth of the power that the 2114 does. 7 mA vs 70 mA max operating current. Not sure if there's anything else that's significant.

/Didrik

On Mon, 6 May 2024, 07:54 Florian Anwander, <fanwander at mnet-online.de<mailto:fanwander at mnet-online.de>> wrote:
Hello,

Can anyone tell me what the difference is between the 2114 and the 6514 SRAM? There are a few variants with different read/write times, but in general I can't find any real difference in the datasheets. (again this is for my OB-Xa, which uses two 2114 and two 6514 - the 6514 are missing, quite likely replaced by a 6116 on the JLCooper MIDI-interface board).

Thanks in advance
Florian

--
http://www.florian-anwander.de/

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