[sdiy] New TI 5532

[Eric Honour]

I'm actually curious if it would be plausible to add an additional
translation layer that allows a new part to behave like an old one.

In software development, there's a pattern called an "anti-corruption
layer" where you basically segregate legacy code apart from cleaner, more
modern code.  I'm basically envisioning a hardware version of this, but
inverted - a "re-corruption layer".

On Thu, May 7, 2026 at 11:06 AM Matthew Skala via Synth-diy <
synth-diy at synth-diy.org> wrote:

> On Thu, 7 May 2026, Sean Ellis via Synth-diy wrote:
>
> > Just saw this thread, not sure if it was shared here.
> https://groupdiy.com/threads/the-new-ti-5532-chips-are-not-5532s-weve-used-
> > for-decades.93707/
>
> Sounds like the TL074H story over again.
>
> It is a genuine problem that obsolete processes can't be kept running
> indefinitely.  They can't necessarily keep making a chip that they've been
> making for decades, and keep making it exactly the same way, especially
> not with the commercial reality of dwindling demand for old analog parts.
>
> If only one tech knows how to run the machine, and the output of that
> machine already doesn't sell enough to pay his salary, then when that guy
> retires it's not reasonable to expect them to have another one trained,
> and keep doing so forever.  And there can be plenty of little gotchas like
> "Oh, that old analog process involved washing the die in X solvent, which
> we're no longer allowed to use for environmental reasons."  At some point
> they may really have to pull the plug.
>
> But I don't understand why they can't admit that they're outright ending
> production of a given part, and assign a new part number (not just a
> suffix!) for the "better" replacement.  Make it clear that it's a new part
> and not just the evolution of the old one.  The supply of few-digit part
> numbers isn't infinite, but it's big enough; and keeping the reputation
> for dealing with customers honestly instead of jerking us around breaking
> our designs, ought to be worth something.
>
> --
> Matthew Skala
> North Coast Synthesis Ltd.
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