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TPS51200: Query related to the TPS51200 VTT specification

Intellectual 920 points

Replies: 1

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Part Number: TPS51200

Hi, 

As per the datasheet page no 14, JEDEC VTT specifications for DDR and DDR2 (JEDEC standard: DDR JESD8-9B May 2002; DDR2 JESD8-15A Sept 2003) mentioned as

                                          VVTTREF – 40 mV < VVTT < VVTTREF + 40 mV

Is this limits +/-40mV still applicable for DDR4 too. Please confirm?

Regards,
Naveen

  • Hi Naveen, 

    The JEDEC VTT spec for DDR and DDR2 does not apply to DDR4. 

    You may need to check DDR4 datasheet. Different DDR4 DIMM may have different VTT tolerance spec. 

    Thanks

    Qian

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