Tomotaka Inamura

MC34708, Silicon Errata

Discussion created by Tomotaka Inamura on Jun 25, 2012
Latest reply on Jun 25, 2012 by Tomotaka Inamura

We design our custom board based on MCIMX53-START-R.

DDR_Vref is generated in MC34708, But MC34708 have Silicon Errata. 

The contents of Silicon Errata as follows.(MC34708ER Rev. 5.0, 4/2012)

"Description:VREFDDR output should be 2% accurate over temp. At 85°C, the output accuracy of 

VREFDDR can go as high as 6.5%."

"Workaround:Use an external resistor divider to generate VREFDDR"

 

Would Freescale make a MCIMX53-START-R before this was informed of it?

Should I use an external resistor divider? Or May I use a MC34708 ?

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