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© 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
(1 pages)
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