Silicon Motion SM2703 - Manual

Mobile Storage
Zoom Family
www.siliconmotion.com
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material contained herein, may be reproduced without written consent of the manufacturer.
© Copyright 2013 Silicon Motion, Inc.
SD 3.0 UHS-I Controller
SM2703
The SM2703 is the state-of-the-art SD memory card
controller that complies with the latest SD 3.0x
specifications. The SM2703 is targeted for portable,
stationary and embedded applications by supporting
full coverage of card capacity including High Capacity
SD Memory Card (SDHC) and Extended Capacity SD
Memory Card (SDXC, more than 32GB and up to
128GB). The advanced security and partitioning
functions just fit the requirements for mobile devices,
including SmartPhone, navigation devices, and
MP3/MP4 media players.
The SM2703 supports the high speed NAND interface,
including ONFI 2.x and Toggle mode, to achieve the
maximum data transfer rate for ever higher
performance. With Silicon Motion’s enhanced flash
technologies, and the powerful, configurable BCH ECC
engine, the SM2703 provides superior security,
flexibility and performance for mainstream products
in the market.
Hightlights
 The most cost-effective UHS-I controller in the
marketplace with unparalleled TLC NAND flash
support, offering read speed of up to 95MB/s
 Superior full HD video recording performance in
both Class 4 and Class 6 devices using only one
TLC die or chip
 Enables consumers to have a better experience in
utilizing more advanced imaging capabilities,
including high megapixel image capture, as well
as full HD video and 3D video recording and
playback on their mobile devices
 Powerful configurable ECC engine that can
significantly improve device endurance
 Strong ESD protection meeting the criteria of +/-
6KV in contact discharge measurement
 Ultra low standby and operating power
consumption (as measure at 85°C)
Key Features
 SD 3.0x Interface

Complies to SD specifications version 2.x/3.0x
(UHS104)

Supports dual voltage 3.3V and 1.8V host
interface power supply

Supports password protection of cards

Switch function command supports Bus Speed
Mode, Command System and future functions

Bus Speed Mode:
- DS: Default Speed mode: 3.3V signaling,
frequency up to 25 MHz, up to 12.5 MB/sec
- HS: High Speed mode: 3.3V signaling,
frequency up to 50 MHz, up to 25 MB/sec
- SD: 1.8V signaling, frequency up to 25 MHz,
up to 12.5 MB/sec
- SDR12: 1.8V signaling, frequency up to 25
MHz, up to 12.5 MB/sec
- SDR25: 1.8V signaling, frequency up to 50
MHz, up to 25 MB/sec
- SDR50: 1.8V signaling, frequency up to 100
MHz, up to 50 MB/sec
- SDR104: 1.8V signaling, frequency up to 208
MHz, up to 104 MB/sec
- DDR50: 1.8V signaling, frequency up to 50
MHz, sampled on both clock edges, up to 50
MB/sec
 Flash Interface

Single channel 8-bit flash interface

Supports up to 4 CE pin function

Global Wear Leveling

Configurable BCH ECC engine
- Zero overhead in the error correction
pipeline to read performance
- Internal data shaping support to increase
data endurance

Supports Samsung/SanDisk/Toshiba/SK
Hynix/Micron/Intel NAND Flash

Supports 2xnm/2ynm/1xnm/1ynm MLC/TLC

Supports 3.3V NAND interface only

Supports Toggle NAND

Supports the ONFI 2.x NAND

Supports 1/2/4-way interleave operation

Supports 2-plane/4-plane operation

Supports 128/192/256/512 page blocks
SD Host
SD 3.0x
Interface
D-RAM
Flash Interface
(Configurable
ECC)
P-RAM P-ROM
Micro
Processor
NAND
Flash