Understanding the Most Advanced

Future Mobile DRAM Solutions

JEDEC at CES 2014

Mueez Deen, Mobile Marketing

Hank Lai, Mobile Product Planning

Samsung Semiconductor Inc.

Copyright © 2014 SAMSUNG

What’s Driving Mobile Data Consumption

Video / Communications

Tablet Smartphone

45% 50%

% Data Consumption % Data Consumption

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

Average Mobile user; Traffic per Month

2017

2.0 GB Traffic/month

2012

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 Traffic

0

2

4

6

8

10

12

2012 2013 2014 2015 2016 2017

Exab

yte

s p

er

Mo

nth

7.4 EB

0.9 EB

11.2 EB

4.7 EB

2.8 EB

1.6 EB

66% CAGR 2012–2017

Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017

13X

Global Mobile Data Traffic,

by Category

0

2

4

6

8

10

12

2012 2013 2014 2015 2016 2017

Exab

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

2017 traffic share

Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017

Video

is

2/3rd

FaceTime Data Usage Study

Key Findings

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

Devices

• iPhone 5: 75% higher data consumption than iPhone 4 over Wi-Fi

• Nearly 20% higher on mobile

Data Usage

• 3.4 MB per minute average

data consumption across all

device and network types

© 2013 Cisco and/or its affiliates. All rights reserved. Cisco Confidential 7

0

2

4

6

8

10

2012 2013 2014 2015 2016 2017

Ex

ab

yte

s p

er

Mo

nth

2-2.5G

3-3.5G

4G

14%

45%

51%

10%

76%

4%

Source: Cisco VNI Global Mobile Data Traffic Forecast, 2012–2017

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

(60%)

7%

2% 2%

(62%) 18%

(51%) 7%

(42%) 5%

(15%) (9%) 5%

(34%)

1,235

1,459 1,566 1,638

1,677 1,757

291 (22%)

470 (32%)

710 (45%)

1005 (61%)

1,154 (69%)

1,260 (72%)

40%

17%

0.3 0.4

0.7 1.0

1.2 1.5

7.3 9.9

10.8 11.3

13.7 16

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

261%

142%

55% 27% 29%

57%

59

138

221

285

363

WB 66

WB 89

WB 70

0.6 1.0 1.0

1.5

2.1 38%

31.4

20.0

23.0 21.9

25.4

-5%

WB 30

Performance Improves But Power Still An Issue

Smartphone performance exploding

Cellular

Wi-Fi (B/W)

Display (Resolution)

x20 2~5Mbps

150~300Mbps

720p

50~100Mbps

7Gbps

4,000p

x30

x17

x34

2010 2020

Source : ARM

720p H.264 4Kp H.265 Video (Resolution)

(vs. 2010)

Battery x2.2 5.76W/h 13W/h

Battery capacity not keeping up

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 • Development Platforms • Wider Markets/Applications

What’s Next for Mobile: Wearable Devices?

Smartphones & Tablets still in early stage, but see strong onset of wearables and potential for future devices

. . . 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)

0

12.8

25.6

38.4

2012 2013 2014 2015

LPDDR2x32 ~800Mbps

LPDDR3x32 ~1600Mbps

LPDDR3Ex32 ~1866Mbps

LPDDR2x64 ~1066Mbps

LPDDR3x64 ~1600Mbps

LPDDR4x64 ~3200Mbps

LPDDR4Ex64 ~4266Mbps

LPDDR2x128 ~1066bps

LPDDR3x128 ~1600Mbps

LPDDR3Ex64 ~1866Mbps

* Platform MP : 3~6month later

LPDDR4x128 ~3200Mbps

WIO2x512 ~800Mbps 51.2

GB/s

Mobile DRAM Technology Trend

LPDDR4 Key Features

Evolutionary DRAM technology enables 3.2Gbps and faster

Items LPDDR3 LPDDR4 Comments

Speed

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 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)

218 140

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

x16

BL16

x32

BL8

LPDDR4 : Activated Page 2KB(1Kx16)

32Byte

~20% IDD4 reduction ~10% IDD0 reduction

x16

32Byte

LPDDR3 : Activated Page 4KB(1Kx32)

Low Power 32-bit Architecture Access Granularity & Page-size/Ch

Power Efficiency by DRAM Technology

LP3_1600 LP3_1866 LP3_2133 LP3_4Ch LP4 WIO2

ODT

I/O

Core

12.8GB/s 14.6GB/s 17GB/s 25.6GB/s

DDR4

Source : Samsung

-40%

mW/GB

More than 40% power efficiency improvement by

adopting new architecture, circuits and low VDD

Power Saving with Advanced Technology

LPDDR4 consumes much less power than LPDDR3

for performing certain tasks

Time

Power Active

Standby LPDDR3

Time

Power Active

Standby LPDDR4

Power(Area)@LP4 << Power@LP3

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!