https://community.nxp.com/t5/PowerQUICC-Processors/MPC8544-Speed-grades/m-p/1406918#M4075 <P>Yes you can use a MPC8544VJARJA (spec'd at 533M platform, 1067M core) at our existing clock rates (suitable for&nbsp;MPC8544VJAQGA ), without any problem.</P> Mon, 31 Jan 2022 05:27:16 GMT r8070z 2022-01-31T05:27:16Z https://community.nxp.com/t5/PowerQUICC-Processors/MPC8544-Speed-grades/m-p/1406605#M4074 <P>We are currently using a MPC8544VJAQGA in a product. That's running with a 400M platform clock and 1000M core clock.&nbsp; Can we use a MPC8544VJARJA (spec'd at 533M platform, 1067M core) at our exisitng clock rates, without any problem ? In other words, is the faster part guaranteed to run at the slower rate ?&nbsp;</P><P>--ed</P> Fri, 28 Jan 2022 12:32:42 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC8544-Speed-grades/m-p/1406605#M4074 edmoore 2022-01-28T12:32:42Z https://community.nxp.com/t5/PowerQUICC-Processors/MPC8544-Speed-grades/m-p/1406918#M4075 <P>Yes you can use a MPC8544VJARJA (spec'd at 533M platform, 1067M core) at our existing clock rates (suitable for&nbsp;MPC8544VJAQGA ), without any problem.</P> Mon, 31 Jan 2022 05:27:16 GMT https://community.nxp.com/t5/PowerQUICC-Processors/MPC8544-Speed-grades/m-p/1406918#M4075 r8070z 2022-01-31T05:27:16Z