JAJSFW1E June 2017 – March 2019 66AK2G12
PRODUCTION DATA.
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DDR3_VREFSSTL (VREF) is used as a reference by the input buffers of the DDR3L memories as well as the processor. VREF is intended to be half the DDR3L power supply voltage and is typically generated with the DVDD_DDR and VTT power supply. It should be routed as a nominal 20-mil wide trace with 0.1 µF bypass capacitors near each device connection. Narrowing of VREF is allowed to accommodate routing congestion.