Presenters: Mueez Deen, Samsung Semiconductor, Mobile Marketing Hank Lai, Samsung Semiconductor, Mobile Product Planning Event: Presented at the JEDEC Conference at CES 2014 in Las Vegas Main Topic: Mobile DRAM Solutions and Trends for SmartPhones and Tablets

1. Understanding the Most Advanced
Future Mobile DRAM Solutions
Mueez Deen, Mobile Marketing
Hank Lai, Mobile Product Planning
Samsung Semiconductor Inc.
JEDEC at CES 2014
Copyright © 2014 SAMSUNG

2. What’s Driving Mobile Data Consumption
Smartphone
Tablet
% Data Consumption
% Data Consumption
Video / Communications
45%
50%
Information
12%
17%
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

3. Average Mobile user; Traffic per Month
2017
2012
201 MB
2.0 GB
Traffic/month
Traffic/month
1 Hour of Video
10 Hours of Video
2 Hours of Audio
15 Hours of Audio
1 Video call
5 Video calls
1 App Download
15 App Downloads
10X
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
5X
15X

4. Global Mobile Data Traffic
66% CAGR 2012–2017
12
11.2 EB
Exabytes per Month
10
13X
8
7.4 EB
6
4.7 EB
4
2.8 EB
2
1.6 EB
0.9 EB
0
2012
2013
2014
2015
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
2016
2017

5. Global Mobile Data Traffic,
by Category
66% CAGR 2012–2017
12
Mobile File Sharing (3.5%)
Exabytes per Month
10
Mobile M2M (5.1%)
Mobile Web/Data (24.9%)
8
6
Mobile Video (66.5%)
Figures (n) refer to
2017 traffic share
Video
is
2/3rd
4
2
0
2012
2013
2014
2015
ource: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
2016
2017

6. FaceTime Data Usage Study
Key Findings
Data Usage
Devices
• 3.4 MB per minute average
data consumption across all
device and network types
• iPhone 5: 75% higher data
consumption than iPhone 4
over Wi-Fi
• Nearly 20% higher on mobile
Network Technology
• Wi-Fi data consumption up to
3X greater than cell network
• Less than 10% difference in
3G and 4G data consumption
Source: Cisco Analysis, 2013

7. 10
4%
2-2.5G
Exabytes per Month
3-3.5G
8
4G
51%
6
4
45%
2
10%
76%
14%
0
2012
2013
2014
2015
2016
2017
Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017
© 2013 Cisco and/or its affiliates. All rights reserved.
Cisco Confidential
7

8. Smartphone Market
Mobile 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
18%
40%
(62%)
7%
2%
2%
5%
(51%)
0.3
7%
(34%)
1,459
1,677
1,638
1,566
1.0
0.7
(9%)
(15%)
(42%)
(60%)
5%
1.2
0.4
1,757
1,235
17%
13.7
291
(22%)
470
(32%)
710
(45%)
1005
(61%)
1.5
1,154
(69%)
1,260
(72%)
7.3
9.9
10.8
11.3
16

9. Tablet Market
Tablet 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
57%
38%
2.1
1.5
261%
142%
55%
0.6
29%
1.0
1.0
27%
363
285
221
-5%
31.4
25.4
138
21.9
23.0
59
WB
30
WB
66
WB
89
WB
70
20.0

10. Performance Improves But Power Still An Issue
Smartphone performance exploding  Battery capacity not keeping up
2010
Cellular
2~5Mbps
Wi-Fi
(vs. 2010)
x20
150~300Mbps
x30
Key Mobile Memory Requirements
(B/W)
2020
50~100Mbps
7Gbps
 Faster Performance & More Capability
Display
720p
4,000p
x17
 While Maintaining Low Power Consumption
(Resolution)
Video
720p H.264
x34
4Kp H.265
Battery
5.76W/h
x2.2
13W/h
(Resolution)
Source : ARM

11. What’s Next for Mobile: Wearable Devices?
Smartphones & Tablets still in early stage, but see strong
onset of wearables and potential for future devices
•
•
•
•
•
•
Sensor Enabled
Environment-Aware
Hands-Free, Easy Access
Always On/Always Connected
Development Platforms
Wider Markets/Applications
. . . And they all need Flash

12. Mobile DRAM Technology Trend
•
Strong demand for high speed/bandwidth Mobile DRAM
–
Double the bandwidth every other year : LP2(‘11)  LP3(‘13)  LP4(‘15)
GB/s
LPDDR4x128
~3200Mbps
38.4
51.2
WIO2x512
~800Mbps
LPDDR4Ex64
~4266Mbps
LPDDR3x128
~1600Mbps
25.6
LPDDR2x128
~1066bps
12.8
LPDDR4x64
~3200Mbps
LPDDR3Ex64
~1866Mbps
LPDDR3x64
~1600Mbps
LPDDR2x64
~1066Mbps
LPDDR3x32
~1600Mbps
LPDDR2x32
~800Mbps
0
2012
LPDDR3Ex32
~1866Mbps
2013
* Platform MP : 3~6month later
2014
2015

13. LPDDR4 Key Features
 Evolutionary DRAM technology enables 3.2Gbps and faster
Items
LPDDR4
Comments
CLK
400-800MHz
(~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%↓
Architecture
[# o Ch & DQs]/ Die
# of Bank/channel
Page Size
BL
x32
8
4K
8
2x16
8
2K
16
IDD4 20% ↓
IDD0 10%↓
32B/ch
I/O interface
HSUL
LVSTL
DQ ODT
No term
(VDDQterm option)
VSSQ Term
40% I/O power
reduction
(vs. POD)
CA ODT
No term
VSSterm
Optional
Vref
External
Internal
Speed
Interface
LPDDR3

14. 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
LPDDR4 LVSTL
I/O Power by Interfaces
(mW/Gbps/pin)
VDDQ
VOH
32%
10
8
6
4
2
0
40%
CTT
POD_VDDQ
LVSTL_VSSQ
DDR3
DDR4
LPDDR4

15. 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)
218
Over 70%
Source : Samsung
140
Over 60%
Source : Samsung memory DRAM Design Team (Feb’13)

16. Power Efficiency by Enhanced Architecture
 Core power reduction by adopting advanced
low power-friendly architecture
Low Power 32-bit Architecture
Access Granularity & Page-size/Ch
BL8
x32
32Byte
LPDDR3 : Activated Page 4KB(1Kx32)
BL16
32Byte
x16
x16
LPDDR4 : Activated Page 2KB(1Kx16)
~20% IDD4 reduction
~10% IDD0 reduction

17. Power Efficiency by DRAM Technology
 More than 40% power efficiency improvement by
adopting new architecture, circuits and low VDD
DDR4
mW/GB
ODT
I/O
Core
-40%
LP3_1600
12.8GB/s
Source : Samsung
LP3_1866
14.6GB/s
LP3_2133
17GB/s
LP3_4Ch
LP4
25.6GB/s
WIO2

18. Power Saving with Advanced Technology
 LPDDR4 consumes much less power than LPDDR3
for performing certain tasks
Active
Power
Standby
LPDDR3
Time
Power
Active
Standby
LPDDR4
Time
Power(Area)@LP4 << Power@LP3

19. Summary
• 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
• Please plan to design your next generation
devices with LPDDR4!