DDR4 Compatibility with T1042

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DDR4 Compatibility with T1042

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gokulkrishnan
Contributor III

Hi, 

I am planning on using a DDR4 memory chip along with the T1042 processor. From the datasheet i found that the chip only supports upto 1600 in data rate and has a max clock frequency of 800MHz.

While the DDR4 device requires a clock of 1333MHz. Could you clarify if this would work properly or Shoudl I choose some other configuration ?

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Regards

Gokul

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r8070z
NXP TechSupport
NXP TechSupport

Have a great day,

On www.JEDEC.org they say: The per-pin data rate for DDR4 is specified as 1.6 giga transfers per second to an initial maximum objective of 3.2 giga transfers per second. JEDEC Standard No. 79-4A (DDR4 specifications) says: An application should use the next smaller JEDEC standard tCK(avg) value (1.5, 1.25, 1.071, 0.938 or 0.833 ns). tCK=1.5ns means 667MHz clock frequency and 1333MT data rate.

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