1.8V GPIO on STM32WB55 Nucleo Pack

[AVILL.3]

Is there a way to use 1.8V NAND Memory Chip using Quad SPI GPIOs in STM32WB55 Nucleo Pack?   

• I already wired-up the 1.8V NAND chip and connected to Quad SPI pins of the Nucleo Pack, but I haven't powered this board up yet.

[TDK]

Looks like the board is designed to run the chip from 3.3V, which is much too high for the 1.8V chip.

No doubt it could be done with a level shifter between the two or other hardware modifications to make the board run from 1.8V, but it would not be easy. It's possible other chips are expecting 3.3V and changing VDD will break their functionality.

[AVILL.3]

There is a 1.8V pin in the Nucleo Pack, and there is also a VDD for the STM32WB55.

Can that that 1.8V be connected to VDD (or Reference pin) so the GPIOs will be on 1.8V?

If not possible, what Level Shifter off-the-shelf board can you reco (fast shifting up to 40MHz at least).

Thanks in advance.

[AVILL.3]

For the level shifter, is this viable? TXB0108?

[AVILL.3]

Here is my wired NAND Mem Chip to the Nucleo Board Pack:

[TDK]

There’s very little chance that will work correctly at 40 MHz given the length of the leads.
I’m not sure on the 1.8V questions. I would consult the schematics to verify the 1.8V pin is a viable supply and that the voltage is indeed 3.3V.
The level shifter data sheet should list bandwidth limits. I can’t imagine it being hard to find one for 40MHz.

[AVILL.3 · Accepted solution]

Finally, I was able to convert the board to have 1.8V in GPIOs.

The idea is based on the user manual's Power management instruction, wherein to take in external 1.8V supply and bypass the PM components related to USB voltage input.