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AN46982 - PLL Considerations in QDRII/II+/DDRII/II+SRAMS

Last Updated: 09/21/2012
Version: *D

AN46982 provides an overview of the operation of QDR-II/II+/DDR-II/II+ SRAMs in PLL disabled mode.

Introduction

QDRTM SRAM family of devices has a phase-locked loop (PLL) within the device to synchronize the output data to the input clocks thereby enabling the device to operate at higher frequencies.

QDR-II/II+/DDR-II/II+ devices can be operated with PLL enabled or PLL disabled. This application note provides an overview of the operation of the device when the PLL is disabled.


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Spec No: 001-46982; Sunset Owner: PRIT; Secondary Owner: VIDB; Sunset Date: 02/09/12

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