i.MX 8M Plus - Hardware Developper Guide (IMX8MPHDG Rev 1) - 32.768kHz Crystal Drive Level

[Dan1111]

The i.MX 8M Plus EVK (8MPLUSLPD4-CPU)uses ABS07-32768KHZ-T for the 32.768KHz crystal oscillator which as a typical drive level of 0.1µW and a maximum of 0.5µW.

However, Table 9 in the Hardware Developer's Guide (IMX8MPHDG Rev 1) states that the crystal requires a drive level of at least 1µW. Is this requirement a typo, and is it meant to say 0.1µW ?

[Dan1111]

Thanks Rita,

Isn't that the old Hardware Developers Guide revision?

You attached
IMX8MPHDG Rev 0, 03/2021, which says the drive strength must be at least 0.5µW.

I have
IMX8MPHDG Rev 1, 03/2024, which says drive strength must be at least 1µW.
https://www.nxp.com/webapp/Download?colCode=IMX8MPHDG

[Rita_Wang]

Yes, I attach old one for our rerence design, in your new design please follow the newest version. Thanks

any questions contact us freely

[Dan1111]

In that case, is the 1µW minimum drive level correct?

[Rita_Wang]

Yes, it is correct, please refer to the newest guide. Any questions contact me freely.

[Rita_Wang]

I think you need to download the newest guide document:

I attach it to you.