SMI SM2258XT Controller（英文）

The SM2258XT is a high-performance SATA 6Gb/s SSD controller ideally suited for cost-effective, small form factor and low power client and industrial storage solutions for PCs, Ultrabooks, Tablet PCs, and other embedded applications. The single-chip, DRAM-less design reduced BOM cost without compromizing performance while enabling 2.5″, 1.8″, slim SATA(MO-297), mSATA(MO-300) and M.2 form factor SSDs. Its ultra-low power consumption effectively extends battery life and optimizes user experience.

The SM2258XT is a complete merchant ASIC/firmware solution supporting 1z nm TLC and 3D NAND from all major NAND suppliers. Leveraging Silicon Motion’s proprietary NANDXtend™ error-correcting code (ECC) technology, the SM2258XT provides a comprehensive data protection and enhances the endurance and retention of TLC NAND, delivering more than three times better durability for TLC SSD.

KEY FEATURES

Ultra High Performance

1. Sequential Read: 540 MB/s*

2. Sequential Write: 450 MB/s*

3. Random Read: 40,000 IOPS*

4. Random Write: 70,000 IOPS*

5. Cost-effective Solution

6. Best-in-class Low Power

7. Average power consumption: 50mW (based on MobileMark’12)

8. Slumber < 20mW DEVSLP < 2mW

Available in Commercial and Industrial Grade

FEATURES

1. Host Interface

2. Industrial Standard SATA Revision 3.1 compliant

3. Industrial Standard ATA/ATAPI-8 and ACS-2 command compliant

4. Supports SATA interface rate of 6Gb/s (backward compatible to 1.5Gb/s and 3Gb/s)

5. Native Command Queuing up to 32 commands

6. SATA Device Sleep (DEVSLP)

7. Data Set Management command (TRIM)

8. Self-Monitoring, Analysis, and Reporting Technology (S.M.A.R.T.)

9. Supports 28-bit and 48-bit LBA (Logical Block Addressing) mode commands

NAND Flash Support

1. Supports 1z nm TLC and 3D NAND

2. Supports ONFI 3.0, Toggle 2.0 interface, and Asynchronous interface

3. Supports 1.8V/3.3V flash I/O

4. Supports 8KB and 16KB page size Supports 1-plane, 2-plane, and 4-plane operation

5. 4 channel flash interface supports up to 16 NAND flash devices

Data Protection and Reliability

1. Supports ATA8 security feature set

2. Internal data shaping technique increases data endurance

3. StaticDataRefresh™ technology ensures data integrity

4. Early weak block retirement option

5. Global wear leveling algorithm evens program/erase count and maximizes SSD lifespan

Architecture

1. 32-bit RISC CPU High-efficiency 64-bit system bus

2. Automatic sleep and wake-up mechanism to save power

3. Built-in voltage detectors for power failure protection

4. Built-in power-on reset and voltage regulators

5. Built-in temperature sensor for SSD temperature detection

6. Supports JTAG emulator interface, bidirectional UART (RS-232) interface, and I2C