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Are pads H1 and G1 on MSP320FG6626 AVCC or DVCC?

Bradford Backus1
Prodigy 190 points
Other Parts Discussed in Thread: MSP430FG6626

There are two packages for the MSP430FG6626: PZ (110 pins) and ZQW (113 ball micro BGA). Table 4.2 of the datasheet for this part lists a row where:

PZ pin 16 and ZQW pads H1 and G2 are listed as 'DVCC'.

However the pin diagram on the datasheet for the PZ part shows PZ pin 16 as 'AVCC'.

Are the PZ Pin 16 and ZQW balls H1/G2 both connected to the same power rail internally? Which power rail are they connected to internally, DVCC or AVCC?

Best Wishes,

Bradiko

  • 0
    Prodigy 190 points
    Sorry the title should say MSP430FG6626.
  • 0
    Guru 74080 points

    You are right - there seems to be a mistake in either the package overview or in the table.

    Here is my opinion:

    Pin 16 of the PZ package and H1 / G2 of the ZQW package is AVCC, so the table is wrong. There is no other AVCC listed in the table. Furthermore multiple rail connections have a number like DVCC1, DVCC2 or DVSS1, DVSS2. This also applies for AVSS1 and AVSS2 which are present. But there is only a single AVCC in the package overview. Since the device has an analog rail, this must be AVCC.

    It would be great if you submit document feedback about this uncertainty / error. There is a link at the bottom of the datasheet.

    Dennis

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