System Benefits of EZ NAND/ Enhanced ClearNAND Flash

Transcription

1 System enefits of Z NN/ nhanced learnn lash arla Lay Micron Technology, Inc. ugust

2 genda NN hallenges Scaling omplexity The Z NN Solution dditional ontroller enefits nhanced learnn Summary ugust

3 The rawbacks of NN Scaling ndurance Requirement s 72nm 50nm 34nm 25nm 20nm

4 omplexity vs. Logic Increasing RRs requires more to achieve equivalent URs

5 The Z NN Solution Minimizes impact of NN technology transitions Latest technology can be used sooner llows host processor to focus on system-level optimization Internal controller offers performance and scaling benefits Provides buffer to reduce channel loading, improving signal integrity ugust

6 Raw NN vs. Z-NN System Using Raw NN lock Management river Vs. System Using Z-NN lock Management river NN bus Z-NN: Relieves Host s burden Host maintains control: lock Management NN NN bus Vddi Z-NN ontroller NN Z-NN

7 Z NN: Loading Improvements System Using Raw NN Raw NN 8 ie Package lash LUN lash LUN System Using Z NN Z NN 8 ie Package lash LUN lash LUN ontrol & Q[7:0]1 1 2 ontrol & 3 4 Q[7:0]2 ontrol & Q[7:0]1 Z NN ontroller 1 ontrol & 2 Q[7:0]2 Host NN ontroller Raw NN: Loading increases with additional NN die May limit I/O speed; reduce system performance Host NN ontroller Z NN: Z NN ontroller serves as buffer to NN die llows for faster I/O speed with more NN die ugust

8 dditional ontroller enefits Internal ontroller allows for additional features: ommand Queuing Multi-ore/Multithreaded rchitecture Support LUN Optimization ommands optimized to utilize LUNs efficiently; reduces Host command complexity Power Management Limit number of active LUNs, etc. ugust

9 ommand Queuing vailable on nhanced learnn via nhanced ommand Set llows commands to be queued if LUNs are busy R/RS queue dependent on command queue depth PRORM queue dependent on buffer availability ugust

10 LUN Optimization Internal ontroller is able to optimize LUN usage by combining commands where possible Multi-LUN commands dditional NN optimization llows each NN vender to utilize expertise without requiring host to customize commands ugust

11 Power Management Internal ontroller can assist with power management Limit number of active LUNs dditional power management techniques llows each Z NN device to be tailored for power/performance based on application requirements ugust

12 nhanced learnn X8 NN Interface hannel 01 nhanced learnn ontroller ommand Queue hannel 02 hannel 01 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

13 nhanced learnn X8 NN Interface hannel 01 nhanced learnn ontroller ommand Queue hannel 02 H I hannel 01 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

14 nhanced learnn X8 NN Interface hannel 01 nhanced learnn ontroller ommand Queue hannel 02 H I hannel 01 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

15 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

16 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

17 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

18 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

19 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

20 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

21 nhanced learnn X8 NN Interface H I hannel 01 nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 H I 0 I 1 I 2 I 3 Up to 4 LUN per channel ugust

22 nhanced learnn X8 NN Interface H I hannel 01 I nhanced learnn ontroller ommand Queue hannel 01 hannel 02 hannel 02 H I 0 I 1 H I 2 I 3 Up to 4 LUN per channel ugust

23 Summary Z NN allows host to optimize NN usage for each application dditional features are available based on internal controller capabilities nhanced learnn provides flexible NN solution to suit many applications ugust

24 2009 Micron Technology, Inc. 24