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SAM3U-PowerMgmt-Slide12

A new feature on the SAM3U is on-die termination or ODT. Resistances are conventionally added externally to improve impedance matching and avoid signal reflection which can result in erroneous data transmission and current peaks degrading the EMI behavior of the system. The SAM3S has integrated series resistances on the outputs with a typical value of 35 Ohms, which result in a reduced BOM cost, real estate savings, and facilitate PCB design. 

PTM Published on: 2012-01-18