When stocks of the old Pico 2’s (using RP2350A2/A3 as below) have diminished….
They’ll be using the new A4 stepping….This brings 5V tolerance on all pins. Security fixes. GPIO pull down resistor issue fixed etc.
There is also a new RRP2354A and RP2354B with internal flash !, yet beyond my logic it’s only 2Mb compared to the 4Mb added to current Pico 2’s !?.
Shame they didn’t improve it further….
None of this is new.
All RP2350’s are 5v tolerant (not just the new stepping.)
They fixed what they could through just metal layer changes.
only 2Mb compared to the 4Mb added to current Pico 2’s !?.
There’s a big difference between cramming a flash chip inside the package and having a completely separate package. And there really isn’t a compelling commercial reason to put more than 2M in there anyway.
Shame they didn’t improve it further….
Should they have bought you a pony too? 
