VREFH is tied to VDDA ?

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VREFH is tied to VDDA ?

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dkh
NXP Employee
NXP Employee

 

For the mk64fn1m0Vdc12 device, can you confirm if the VREFH is tied to VDDA in the 121 XBGA package? The datasheet ball out lists VREFH as a pin, so it implies it is not shorted to VDDA. Can you confirm?

 

Can I generally say if VDDA and VREFH are pinned out they are not connected internally. If I recall they are connected internally only on lower pin count parts.

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juan_mendoza
NXP Employee
NXP Employee

If VREFH/VDDA are pinned out to a separate ball, then they would be separate. They are never tied together internally, they could be tied together in the package but that is generally only done for the 32-pin and smaller size packages.

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