topic Re: DDR4 Compatibility with T1042 in T-Series https://community.nxp.com/t5/T-Series/DDR4-Compatibility-with-T1042/m-p/619054#M1589 <HTML><HEAD></HEAD><BODY><P>Have a great day,</P><P>On <A href="https://community.nxp.com/www.JEDEC.org" target="test_blank">www.JEDEC.org</A> 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.</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 23 Nov 2016 17:48:47 GMT r8070z 2016-11-23T17:48:47Z DDR4 Compatibility with T1042 https://community.nxp.com/t5/T-Series/DDR4-Compatibility-with-T1042/m-p/619053#M1588 <HTML><HEAD></HEAD><BODY><P>Hi,&nbsp;</P><P>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.</P><P>While the DDR4 device requires a clock of 1333MHz. Could you clarify if this would work properly or Shoudl I choose some other configuration ?</P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_1.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/10702i1DC191B4D210AA85/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_1.png" alt="pastedImage_1.png" /></span></P><P></P><P><span class="lia-inline-image-display-wrapper" image-alt="pastedImage_2.png"><img src="https://community.nxp.com/t5/image/serverpage/image-id/10755iFDE37E9E1F5E7FAE/image-size/large?v=v2&amp;px=999" role="button" title="pastedImage_2.png" alt="pastedImage_2.png" /></span></P><P>Regards</P><P>Gokul</P></BODY></HTML> Wed, 23 Nov 2016 11:16:31 GMT https://community.nxp.com/t5/T-Series/DDR4-Compatibility-with-T1042/m-p/619053#M1588 gokulkrishnan 2016-11-23T11:16:31Z Re: DDR4 Compatibility with T1042 https://community.nxp.com/t5/T-Series/DDR4-Compatibility-with-T1042/m-p/619054#M1589 <HTML><HEAD></HEAD><BODY><P>Have a great day,</P><P>On <A href="https://community.nxp.com/www.JEDEC.org" target="test_blank">www.JEDEC.org</A> 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.</P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 23 Nov 2016 17:48:47 GMT https://community.nxp.com/t5/T-Series/DDR4-Compatibility-with-T1042/m-p/619054#M1589 r8070z 2016-11-23T17:48:47Z