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Application Report Abstract
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Low-Power Support Using Texas Instruments SN74SSTV16857 and SN74SSTV16859

The Texas Instruments SN74SSTV16857 and SN74SSTV16859 registers support the low-power mode of the DDR-DIMM. This application report explains the low-power mode and the features of the registers that support the low-power mode. Also, the considerations that the system designer must be aware of when implementing the low-power state of a registered memory module are explained. The sequence that must be followed to utilize the register properly is detailed, including the interpretation of the associated register timing specifications. Finally, the different static- and dynamic-current specifications are analyzed, along with examples of how to calculate the dynamic operating current requirement of the registers.

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