Silicon Motion SM2244LT - 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.
SATA Solid-State Drive Controller
SATA Host
UART I/F
NAND
Flash
Chips
SATA PHY SATA MAC
Bus Controller
ROM
RAM
ECC
I 2 C
Controller
Main
System
Buffer
Security Encoder/Decoder
Micro
Processor
Flash
Controller
SM2244LT
The SM2244LT controller offers high performance
and low power consumption for SATA Solid State
Drive. Equipped with powerful Error Correction
Coding (ECC) and flash interface, this controller can
support new generation flash including Toggle and
ONFI DDR NAND.
The SM2244LT offers advanced technology to
transfer data to the host via a high efficiency DMA
engine and delivers the extraordinary performance in
data read/write speed. Further, Silicon Motion
optimized wear leveling, bad block management, data
security technologies, and flash management
technologies ensures the best data reliability for
SATA SSD applications. The SM2244LT is the best
solution to the compromise between performance,
security, form factor size, and cost considerations to
satisfy the requirements for industrial, military, and
consumer storage systems.
Applications
 SATA 3Gb/s Solid State Disk
 Embedded Application
 High-Speed NAND Storage
Package
 88-pin QFN (2-channel Flash I/F)
 144-ball LFBGA (4-channel Flash I/F)
 Lead-free and RoHS Compliant
Key Features
 SATA Interface

Compliant with Serial ATA Rev. 2.6 specification
with 1.5Gb/s and 3Gb/s interface rate
 Compliant with ATA/ATAPI-8

Supports SATA DEVSLP
 Supports PHY Sleep mode (CFast PHYSLP)

Supports partial and slumber mode
 Supports 48-bit Logical Block Addressing (LBA)
 Flash Interface

Supports ONFI 2.x / Toggle 1.0
Synchronous/Asynchronous interface

Up to 8 CE pins per channel
 Global Wear Leveling
 Flash Memory Support
 Supports 1.8V and 3.3V NAND Flash

Supports 1 / 2/ 4 Channel NAND operation
 Supports 2KB, 4KB, 8KB and 16KB page size

Supports 1-plane, 2-plane and 4-plane operations
 Advanced Security Features
 Supports quick erase and ATA8 security feature

Supports real time FDE with AES 128/256-bit
strength

Supports Hardware SHA 256 and TRNG
 Robust Data Protection

Hardware BCH ECC engine

Data shaping for higher data reliability

Software/Hardware write protect option

StaticDataRefresh ensures data integrity
 Early weak block retirement option
 Controller Core
 Supports bi-directional UART (RS-232) interface

Supports I 2 C master/slave interface
 Automatic sleep and wake-up mechanism

Built-in thermal resistance for temp. detection

Built-in 2.7V and 4.0V voltage detectors for
power fail protection
 Upgradeable Firmware
 Operating Temperature

Commercial version: 0°C ~ 70°C
 Industrial version: -40°C ~ 85°C