Understanding the Most Advanced Understanding the Most Advanced Future Mobile DRAM SolutionsFuture Mobile DRAM SolutionsFuture Mobile DRAM SolutionsFuture Mobile DRAM Solutions
JEDEC at CES 2014
Mueez Deen, Mobile MarketingHank Lai, Mobile Product PlanningSamsung Semiconductor Inc.
Copyright © 2014 SAMSUNG
What’s Driving Mobile Data ConsumptionWhat’s Driving Mobile Data Consumption
Video / Communications
TabletTabletSmartphone Smartphone
45% 50%
% Data Consumption % Data Consumption
Information 12% 17%
Web Browsing 6% 7%Web Browsing 6% 7%
Social Networking 7% 3%
Music/Audio Streaming 4% 3%
System 16% 13%
Other 10% 7%
Source: Cisco Data Meter, Sep 2012–Dec 2012
Average Mobile user; Traffic per MonthAverage Mobile user; Traffic per Month
20172017
2.0 GB 2.0 GB Traffic/month
20122012
201 MB 201 MB Traffic/month
1 Hour of Video
1 Video call
2 Hours of Audio
1 App Download
10 Hours of Video
5 Video calls
15 Hours of Audio
15 App Downloads
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
10X
15X
5X
Global Mobile Data TrafficGlobal Mobile Data Traffic
6
8
10
12E
xa
byte
s p
er
Mo
nth
7.4 EB
11.2 EB
66% CAGR 2012–2017
13X
0
2
4
6
2012 2013 2014 2015 2016 2017
Ex
ab
yte
s p
er
Mo
nth
0.9 EB
4.7 EB
2.8 EB
1.6 EB
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
Global Mobile Data Traffic, Global Mobile Data Traffic, by Categoryby Category
8
10
12
Ex
ab
yte
s p
er
Mo
nth
Mobile File Sharing (3.5%)
Mobile M2M (5.1%)
Mobile Web/Data (24.9%)
Mobile Video (66.5%)
66% CAGR 2012–2017
Figures (n) refer to
0
2
4
6
2012 2013 2014 2015 2016 2017
Ex
ab
yte
s p
er
Mo
nth
Figures (n) refer to 2017 traffic share
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
Video is
2/3rd
FaceTimeFaceTime Data Usage StudyData Usage StudyKey FindingsKey Findings
Devices
• iPhone 5: 75% higher data consumption than iPhone 4
Data Usage
•• 3.4 MB per minute average 3.4 MB per minute average data consumption across all data consumption across all
Network Technology
•• WiWi--Fi data consumption up to Fi data consumption up to 3X greater than cell network3X greater than cell network
•• Less than 10% difference in Less than 10% difference in 3G and 4G data consumption3G and 4G data consumption
Source: Cisco Analysis, 2013
consumption than iPhone 4 over Wi-Fi
• Nearly 20% higher on mobile
data consumption across all data consumption across all device and network typesdevice and network types
6
8
10
Exab
yte
s p
er
Mo
nth
2-2.5G
3-3.5G
4G
51%
4%
© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7
0
2
4
6
2012 2013 2014 2015 2016 2017
Exab
yte
s p
er
Mo
nth
14%
45%10%76%
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
Smartphone MarketSmartphone MarketMobile phone shipments will total 1,677M in 2014
Smartphone segment will grow by 15% to 1,154M – representing 67% of total shipments
Strong smartphone demand expected due to increased cannibalization of feature phones in emerging markets
(60%)
2%2%
(62%)
18%
(51%)
7%
(42%)
5%(15%)
(9%)
5%
40%40%
0.30.4
0.7
1.0
1.21.5
(60%)
7%7%
(15%)
(34%)
1,235
1,4591,566
1,6381,677 1,757
291(22%)
470(32%)
710(45%)
1005(61%)
1,154(69%)
1,260(72%)
17%17%
0.3
7.39.9
10.811.3
13.716
Tablet MarketTablet MarketTablet shipments will grow 29% to 285M in 2014
Tablet market growth continues, especially in the low-end segment
Tablet average memory content grows 10% to 21.9GB/sys in 2014
261%
142%
55%27%29%
57%57%
0.61.0
1.0
1.5
2.138%38%
27%29%
59
138
221
285
363
WB66
WB89
WB70
31.4
20.0
23.021.9
25.4
--5%5%
WB30
Performance Improves But Power Still An IssuePerformance Improves But Power Still An Issue
Smartphone performance exploding
Cellular
Wi-Fi(B/W)
x202~5Mbps
150~300Mbps
50~100Mbps
7Gbpsx30
2010 2020(vs. 2010)
���� Battery capacity not keeping up
Key Mobile Memory Requirements
Display(Resolution)
720p 4,000px17
x34
Source : ARMSource : ARMSource : ARMSource : ARM
720p H.264 4Kp H.265Video(Resolution)
Battery x2.25.76W/h 13W/h
Key Mobile Memory Requirements� Faster Performance & More Capability� While Maintaining Low Power Consumption
• Sensor Enabled• Environment-Aware• Hands-Free, Easy Access• Always On/Always Connected
What’s Next for Mobile: Wearable Devices?What’s Next for Mobile: Wearable Devices?
Smartphones & Tablets still in early stage, but see strong onset of wearables and potential for future devices
• Always On/Always Connected• Development Platforms• Wider Markets/Applications
. . . And they all need Flash
• Strong demand for high speed/bandwidth Mobile DRAM
– Double the bandwidth every other year : LP2(‘11) � LP3(‘13) � LP4(‘15)
38.4
LPDDR4x64
LPDDR4Ex64
~4266Mbps
LPDDR3x128
LPDDR4x128
~3200Mbps
WIO2x512
~800Mbps51.2
GB/s
Mobile DRAM Technology Trend
0
12.8
25.6
2012 2013 2014 2015
LPDDR2x32
~800Mbps
LPDDR3x32
~1600Mbps
LPDDR3Ex32
~1866MbpsLPDDR2x64
~1066Mbps
LPDDR3x64
~1600Mbps
LPDDR4x64
~3200Mbps
LPDDR2x128
~1066bps
LPDDR3x128
~1600Mbps
LPDDR3Ex64
~1866Mbps
* Platform MP : 3~6month later
LPDDR4 Key Features
� Evolutionary DRAM technology enables 3.2Gbps and faster
Items LPDDR3 LPDDR4 Comments
Speed
CLK400-800MHz
(~1066MHz w/ LP3E)800-1600MHz
2X, Pursues higher
speed
CMD/ADDR DDR SDR -
DQ DDR DDR
Band Width 12.8GB/s+ (2ch) 25.6GB/s+ (2ch) 2X
Voltage VDD2/VDDQ/VDD1 1.2/1.2/1.8 1.1/1.1/1.8 Total Pd 10%↓Voltage VDD2/VDDQ/VDD1 1.2/1.2/1.8 1.1/1.1/1.8 Total Pd 10%↓
Architecture
[# o Ch & DQs]/ Die x32 2x16 IDD4 20% ↓
# of Bank/channel 8 8 -
Page Size 4K 2K IDD0 10%↓
BL 8 16 32B/ch
Interface
I/O interface HSUL LVSTL 40% I/O power reduction (vs. POD)DQ ODT
No term (VDDQterm option)
VSSQ Term
CA ODT No term VSSterm Optional
Vref External Internal
LPDDR4 - Innovative Interface LVSTL
LVSTL (Low Voltage Swing Terminated Logic)• High frequency operation with less IO power consumption• No DC power consumption when driving “low”• Lower Cio, small Xtalk and SSN, because of small swing• Stronger reference plane• Easy voltage scaling
0
2
4
6
8
10
CTT POD_VDDQ LVSTL_VSSQ
DDR3 DDR4 LPDDR4
(mW/Gbps/pin)
32%
40%
VDDQ
VOH
LPDDR4 LVSTL I/O Power by Interfaces
LPDDR4 3.2Gbps and Beyond
LPDDR4 LVSTL enables stable 3.2Gbps with 70% UI• Initial SI study result shows prominent 4.3Gbps
with 60% UI @ 350mV swing• Further enhancement by reducing trace length, optimizing
channel - SOC/PKG/DRAM and lower Cio
3.2Gbps Data Eye Diagram (ODT=60ohm) 4.3Gbps Data Eye Diagram (ODT=60ohm)
218218140140
Over 70%Over 60%
Source : Samsung memory DRAM Design Team (Feb’13)Source : Samsung
Power Efficiency by Enhanced Architecture
� Core power reduction by adopting advanced low power-friendly architecture
x32
BL8
32Byte
Low Power 32-bit Architecture Access Granularity & Page-size/Ch
x16
BL16
LPDDR4 : Activated Page 2KB(1Kx16)
32Byte
~20% IDD4 reduction ~10% IDD0 reduction
x16
LPDDR3 : Activated Page 4KB(1Kx32)
Power Efficiency by DRAM Technology
ODT
I/O
CoreDDR4
-40%
mW/GB
� More than 40% power efficiency improvement by adopting new architecture, circuits and low VDD
LP3_1600 LP3_1866 LP3_2133 LP3_4Ch LP4 WIO2
12.8GB/s 14.6GB/s 17GB/s 25.6GB/s
Source : Samsung
Power Saving with Advanced Technology
� LPDDR4 consumes much less power than LPDDR3 for performing certain tasks
Time
Power Active
StandbyLPDDR3
Time
Time
Power Active
StandbyLPDDR4
Power(Area)@LP4 << Power@LP3
SummarySummary
• Mobile devices continue to demand higher performance without sacrificing battery life
• LPDDR4 is the most power efficient (mW/GBps) memory that will meet these demands handily demands handily
• Please plan to design your next generation devices with LPDDR4!
Thank You!Thank You!