TMS320C5517: IO voltage

Guru 11350 points

Part Number: TMS320C5517

Hi,

I have a question about VC5506 and C5517.

Our customer are using VC5506 on their system.
But they are planning to replace from VC5506 to C5517 and they have question about C5517 I/O voltage.
They want to supply 3.0V to C5517 DVDD(I/O voltage)

In their system, other external devices need 3.0V.
So,they are also supplying 3.0V for VC5506 I/O voltage(DVDD).
3.0V is in the range of VC5506 DVDD(Device supply voltage), so there are no problem.
VC5506 DVDD range is 2.7V - 3.6V.

If they replace to C5517, can they still use 3.0V for C5517 I/O voltage?

From datasheet of C5517, I/O voltage is 1.8V/2.75V/3.3V.
But 3.0V is in the range of each 2.75V and 3.3V.

2.75V range is "2.48V - 3.02V".
3.3V range is "2.97V - 3.63V.

best regards,
g.f.

  • Hi,

    It should be possible, the 3.3 variant of the DVDD suplly ranges from 2.97 to 3.63V, see 5.2 Recommended Operating Conditions from C5517 Data Manual:

     

    However, I'd recommend, if possible to change their design so that they use the typical 3.3V for DVDD. 

    Best Regards, 
    Yordan

     


     Please click the Verify Answer button on this post if it answers your question.

       Please make sure you read the forum guidelines first.