TMS570LS1227: TMS570LS1227 osc accuracy requirement

user5021450

Prodigy 90 points

Part Number: TMS570LS1227

We want to know the osc accuracy requirement of TMS570LS1227,osc's ppm requirement.

We use 16M osc for the MCU.

osc's ppm requirement,just like this:

over 7 years ago

0 QJ Wang over 7 years ago

TI__Guru**** 197446 points

Hello,

Crystals is pretty accurate. We don't have special crystal ppm requirements for MCU. The accuracy is needed when high speed communication is used such as USB, Ethernet, and FlexRay which have very tight tolerances. For example, to meet the IEEE802.x, 40ppm or lower may be required.

0 user5021450 over 7 years ago in reply to QJ Wang

Prodigy 90 points

Thank you for your answer.

There isn't special crystal ppm requirements for MCU,because of the Crystals is pretty accurate?

We choose 16MHz±20ppm OSC for TMS570LS1227 is OK?

Please~~~help~~~

0 QJ Wang over 7 years ago in reply to user5021450

TI__Guru**** 197446 points

I mean the crystal ppm requirements is based on your application.

Arm-based microcontrollers

Arm-based microcontrollers forum

TMS570LS1227: TMS570LS1227 osc accuracy requirement