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SATA Solid-State Drive Controller
SATA
Host
DDR/
DDR2/
Mobile DDR
Flash
Controller
DRAM
Controller
ROM
SRAM
Power
Saving
Control
SATA
Interface
32-bit
RISC CPU
NAND
Flash
Die(s)
SM2244
The SM2244 is an extremely high-performance
SATAII SSD Controller, supporting the new
generation high-speed synchronous mode NAND and
delivering the world highest transfer rate among 4-
channel SATA Solid-State Drives. The SSD controller
provides small-form factor to be more adaptive to the
applications for mobile consumer electronics such as
tablet PC, Netbook, mini-SATA (MO-300A), and Half-
slim SSD (MO-297).
In addition to advanced features and customized
supports, the SM2244 offers longer SSD lifetime with
lower write amplification and wear leveling factor
(WLF). To satisfy the requirements for industrial,
military, and consumer storage systems, the SM2244
is the best solution to the compromise between
performance, power consumption, form size, and cost
considerations.
Applications
SATA II Solid State Disk
Embedded Application
High-Speed NAND Storage
Package
LFBGA 225-ball
Lead-free and RoHS Compliant
Key Features
SATA Interface
Compliant with Serial ATA Revision 2.6 specification
1.5 Gbps/ 3.0 Gbps interface rate
Supports Native Command Queuing
Supports TRIM command based on ATA-8
Supports 48-bit Logical Block Addressing (LBA)
Supports partial and slumber mode
Flash Interface
Supports ONFI 2.1/2.2 Synchronous/Asynchronous
Interface
Supports Toggle Synchronous Interface
4 parallel channel flash interface
8 CE pins per channel support up to 32 flash devices
Global Wear Leveling
Flash Memory Support
Supports all 2x/3x nm MLC/SLC NAND Flash
Supports 2KB, 4KB, and 8KB page size
2-plane Interleave structure
Supports External DRAM
DDR/DDR2/Mobile DDR
Supports 16-bit data bus width only
Supports DRAM with capacity of up to 2Gb
Robust Data Protection
Enhanced hardware BCH ECC engine
Software/Hardware write protect option
StaticDataRefresh technology ensures data integrity
Early weak block retirement option
Multiple data security zones
Controller Core
32-bit RISC CPU
Built-in 1.2V Power-On-Reset
Built-in 2.5V and 2.3V voltage detectors for power
fail protection
Automatic sleep and wake-up mechanism to save
power
Upgradeable Firmware
Supports firmware in system programming (ISP)
function for firmware upgrade
Operating Temperature
Commercial version: 0°C ~ 70°C
Industrial version: -40°C ~ 85°C
(1 pages)
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