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Original question:

PGA460: PGA460 IO output low voltage 2V?

PGA460: Burn two PGA460 at once

Andy Oyamada
Intellectual 400 points
Part Number: PGA460
Other Parts Discussed in Thread: MSP430F5529,

Hi,

Is it able to burn two PGA460s at once through one gathered UART connection from MSP430F5529 Launch Pad?

I am designing PCB that has two PGA460s and they will be programmed same values to their registers.
If no response was needed for initial burning, I am guessing their UART RXD ports can be connected as one RXD that is connected to Launch Pad UART TXD.

Sorry if it was a wierd question.

Best Regards,
Andy

Here's my current design:

 

  • 0
    TI__Expert 3450 points

    Hi Andy,

    For only receiving data from the MCU, that should be fine. On page 57 of the PGA460 datasheet in the UART programming section, you can find some example UART communication scenarios, and in example 2 below, no response from the PGA is required. Pull up resistors may be a good idea on the PGA RXD lines, since they idle high.  

    Regards,

    Gabriel