AU80610004653AASLBMG 데이터 시트보기 (PDF) - Intel

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AU80610004653AASLBMG

Intel® Atom™ Processor N400 & N500 Series

Intel 

Introduction

1.2

1.2.1

Interfaces

System Memory Support

Support DDr2 SDRAMs (N450 and N470 support DDR2 only)

• One channel of DDR2 memory (consists of 64-bit of data lines):

— Maximum of two SO-DIMMs in Raw Card-A or Raw Card-C format

• Memory DDR2 data transfer rates of 667 MT/s

• I/O Voltage of 1.8 V for DDR2

• Non-ECC, unbuffered DDR2 SO-DIMMs only

• 512-Mb, 1-Gb and 2-Gb DDR2 DRAM technologies supported

• Maximum of 2-GB memory capacity supported

— Maximum 1-GB memory capacity on one SO-DIMM or Memory Down

• Memory organizations:

— Two SO-DIMMs

— One SO-DIMM only

— One SO-DIMM and One Memory Down (based on simulations only)

• Up to 32 simultaneous open pages (assuming 4 Ranks of 8 Bank Devices)

• Partial Writes to memory using Data Mask signals (DM)

• On-Die Termination (ODT)

• Intel® Fast Memory Access (Intel FMA)

— Just-in-Time Command Scheduling

— Command Overlap

— Out-of-Order Scheduling

— Opportunistic Writes

• Support memory thermal management scheme to selectively manage reads and/or

writes. Memory thermal management can be triggered by either on-die thermal

sensor, or by preset limits. Management limits are determined by weighted sum of

various commands that are scheduled on the memory interface.

•

Support DDR3 SDRAMs:

• Support for DDR3 at data transfer rate of 667 MT/s

• One channel of DDR3 memory (consists of 64-bit of data lines): Maximum of two

SO-DIMMs in Raw Card-A or Raw Card-B format

• I/O Voltage of 1.5 V for DDR3

Datasheet

9

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