Silicon Motion SM2683EN - Manual

Mobile Storage
Zoom Family
www.siliconmotion.com
This publication, including all photographs, illustrations and software, is protected under
international copyright laws, with all rights reserved. Neither this publication, nor any of the
material contained herein, may be reproduced without written consent of the manufacturer.
© Copyright 2011 Silicon Motion, Inc.
SD Controller
SM2683EN
The SM2683EN is one of the most advanced SD
controllers that support the SD2.0 specifications (with
backward compatibility to SD1.0/1.1 specifications).
The SM2683EN is applicable for a variety of
applications requiring an SD interface and flash
storage.
With advanced technology, embedded regulator/
voltage detector/oscillator, and configurable BCH
ECC engine, the SM2683EN provides the maximum
flexibility and extraordinary performance, and a cost-
effective solution at a competitive price.
As the mainstream flash process migrates to 30nm,
20nm and bellow, the ECC function becomes more
vital than ever. With the configurable BCH ECC, the
SM2683EN provides full support for all NAND flash
chips currently in the market, including those made by
Samsung, SanDisk, Toshiba, Hynix, and Intel/Micron.
Applications
 SD cards of all form factors, including
SD/miniSD/microSD
 Embedded system
General Features
 Enhanced ESD design
 Package: Die form/46-pin LGA
Key Features
 Supports SD memory card

Supports SD specifications v1.01/v1.1/v2.0

Applicable for single host voltage (3.3V)

4-bit data bus with max 50MHz bus clock rate

Supports Content Protection for Recordable
Media (CPRM)

Supports standard capacity SD memory cards
(≤ 2GB)

Supports SDHC capacity (4-32GB)
 Supports SD standard commands

Command class 0, 2, 4, 5, 6, 7, 8, 10
 Supports firmware In System Programming
(ISP)

Controller firmware upgradeable

Capable of adding new features
 Flash interface

Supports single channel 8-bit flash interface

Supports 4-way interleave

8 CE pins on the channel to support up to 8
flash chips (die/LGA48)

Supports only 3.3V flash for SD cards

Supports 1.8V flash only when the flash chips
are powered independently
 Flash memory supported

Configurable BCH ECC

Support 2-bits and 3-bits per cell MLC NAND
type Flash

Supports SLC NAND flash

Support 256 page/block & 384 page/block
architecture

Supports flash with 4KB/8KB page architecture

Supports 2-plane operation
SD Host
SD
Interface
DMA
Controller
Flash Memory
Interface with
BCH-ECC
RAM ROM
Micro
Processor
NAND
Flash