TMS570LC4357: AC overshoot and undershoot thresholds

Archana Rao

Intellectual 915 points

Part Number: TMS570LC4357

Hi,

The datasheet only specifies the DC overshoot and undershoot, but not AC thresholds.

Can you please let me know where can I find AC overshoot and undershoot thresholds for this microcontroller?

Regards,

Archana Rao

over 5 years ago

0 Sunil Oak over 5 years ago

TI__Mastermind 49120 points

Hi Archana,

Are you asking about the AC thresholds for the supplies to the MCU? These supplies are required to have bypass capacitors to filter out AC components from the supplies. The recommended filtering is typically specified in the PMIC's datasheet.

All the tolerances for the supplies are specified in the datasheet in the 'Recommended Operating Conditions" section.

Regards, Sunil

0 Archana Rao over 5 years ago in reply to Sunil Oak

Intellectual 915 points

Hi Sunil,

I would like to know the AC overshoot and undershoot limit that can be handled by inputs of the microcontroller.

From the datasheet, I could get the DC overshoot and undershoot limit as Vcc+300mV and Vss-300mV (VIH max and VIL min respectively).

But, for AC overshoot and undershoot limit, there was no information provided?

Please let us know if it is mentioned in a different nomenclature.

Regards,

Archana Rao

0 Sunil Oak over 5 years ago in reply to Archana Rao

TI__Mastermind 49120 points

Hi Archana,

This post should help you: https://e2e.ti.com/support/microcontrollers/hercules/f/312/t/559146

Regards,

Sunil

Arm-based microcontrollers

Arm-based microcontrollers forum

TMS570LC4357: AC overshoot and undershoot thresholds