Re: MOS8520R4 - 1988 vs. 1991

From: Frank Wolf <webmaster_at_frank-wolf.org>
Date: Wed, 29 Jan 2020 12:37:16 +0100
Message-ID: <82d80d75-27dc-0a27-046d-58cbc31ea1d6_at_frank-wolf.org>
No... circuit seems to be identical.

Though they changed the masks which was expensive they didn't want to
introduce new part numbers.


On 29/01/2020 12:31, Ed Spittles wrote:
> On Wed, 29 Jan 2020 at 10:51, fhw72 <webmaster_at_frank-wolf.org 
> <mailto:webmaster_at_frank-wolf.org>> wrote:
>
>     Both chips are 8520R4 (obviously)... but still not the same.
>
>
> I'm seeing tweaks to the metallisation around the pads, looks like 
> trying to reduce stray resistance. Anything else?
Received on 2020-05-30 00:28:01

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