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MSP430F673x DVSYS terminal

takin
Prodigy 200 points
Other Parts Discussed in Thread: MSP430F6733

Hello

I have one question.

About Pin No.59 DVSYS on the MSP430F6733, if I don't use it, how can I handle it?

I confirmed with SLAA517E, and it shows DVSYS is connected to the GND through capacitor. IS IT RIGHT?  

  • 0
    TI__Guru 56685 points
    Hello takin,

    Please see device datasheet for proper connection of DVSYS and VDSYS. This information is located in Table 6 - Terminal Descriptions and the Auxiliary Supplies - Recommended Operating Conditions table.
  • 0 in reply to Jace H
    Prodigy 200 points
    Hello JH

    I saw the data sheet and it shows follow
    ThepinsVDSYSandDVSYSmustbeconnectedexternallyonboardforproperdeviceoperation.

    If you have another comment, would you show me that.

    BTW the EVB data sheet shows VDSYS connect GND thorough the capacitor.
    What is the proper device operation?
    Also I don't use AUX supplies.
    What should I do?
  • 0 in reply to takin
    TI__Guru 56685 points

    Hello takin,

    Terminal Functions table:

    VDSYS must be connected to DVSYS for device operation. VDSYS must also have CVSYS connected to it similar to how VCORE needs CVCORE.

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