30 Jul
2025
30 Jul
'25
6:34 p.m.
Iff a device has a 5V tollerant input and the device at the other end is TTL that is
essentially what you are doing - fitting a real level shifter
In the case of the RP2050, subject to the mask revision being A4 ...
Martin
-----Original Message-----
From: emanuel stiebler [mailto:emu@e-bbes.com]
Sent: 30 July 2025 22:07
To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org>rg>; Martin
Bishop <mjd.bishop(a)emeritus-solutions.com>
Cc: Paul Koning <paulkoning(a)comcast.net>
Subject: Re: [cctalk] Re: RP2350 5V Input Tollerant Pins
On 2025-07-30 16:15, Paul Koning via cctalk wrote:
Just put real level shifter on the board, and sleep better ...
On Jul 30, 2025, at 3:07 PM, Martin Bishop
<mjd.bishop(a)emeritus-solutions.com> wrote:
https://www.eenewseurope.com/en/raspberry-pi-spins-its-rp2350-adds-5v-suppo… was my
point of departure, doubtless a recycled press release.
Yikes. Assuming that is accurate, Raspberry Pi screwed up very severely by claiming 5V
support in the data sheet without saying it only applies to the A4 rev. Any number of
people will fry their chips because of this blunder.