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66AK2H unused pins

Keigo Ishii
Intellectual 820 points
Other Parts Discussed in Thread: 66AK2H06

Hello.

I don't use the following pins of 66AK2H06.

 - TSPUSHEVT0
 - TSPUSHEVT1
 - TSSYNCEVT
 - TSCOMPOUT
 - TSREFCLKN
 - TSREFCLKP
 - TSRXCLKOUT0N
 - TSRXCLKOUT0P
 - TSRXCLKOUT1N
 - TSRXCLKOUT1P

Could you please let me know how these unused pins should be connected?

Best regards,
Keigo Ishii

  • 0
    TI__Expert 4760 points

    Hi Keigo Ishii,

    The recommended connections for the unused pins are given below. Please refer page no 57 on the keystone 2 hardware design guide for more details SPRABV0 and the device specific datasheet for the supported peripherals.

    Pin Name

    Pin Type

    Internal Option

    Recommendation

    TSPUSHEVT0

    IOZ

    Pull Down

    Can be floated

    TSPUSHEVT1

    IOZ

    Pull Down

    Can be floated

    TSSYNCEVT

    O

    Pull Down

    Can be floated

    TSCOMPOUT

    O

    Pull Down

    Can be floated

    TSREFCLKN

    I

    --

    Pull down with 1K resistor

    TSREFCLKP

    I

    --

    Pull Up to 1.8V with 1k resistor

    TSRXCLKOUT0N

    O

    --

    Can be floated

    TSRXCLKOUT0P

    O

    --

    TSRXCLKOUT1N

    O

    --

    Can be floated

    TSRXCLKOUT1P

    O

    --

     

    Each peripheral section includes recommendations on how to handle pins on interfaces that are disabled or for unused pins on interfaces that are enabled. Generally, if internal pull-up or pull-down resistors are included, the pins can be left unconnected. Any pin that is output-only can always be left unconnected. Normally, if internal pull-up and pull-down resistors are not included, pins can still be floated with no functional issues for the device.

    Please refer page no 57 on the keystone 2 hardware design guide for more details SPRABV0

    Regards

    Antony

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