Silicon Motion SM2268XT 3rd-Gen PCIe Gen4 SSD Controller for Future TLC and QLC 3D NAND Flash

Silicon Motion Technology Corp. announced the SM2268XT, a high-performance PCIe Gen4 SSD controller solution optimized for higher speed NAND transfer rates.

The SM2268XT’s performance and reliability allows customers to accelerate development of next-gen SSDs using current and future TLC and QLC 3D NAND flash with data integrity and correction without compromising throughput and latency.

It features a dual-core ARM R8 CPU with 4 lanes of 16Gb/s PCIe data flow and supports 4 NAND channels with up to 3,200MT/s per channel, enabling designers to take advantage of higher throughput next-gen high-speed TLC and QLC 3D NAND flash. Its multi-core design automatically balances the compute load to deliver sequential read and write speeds of 7,400MB/s and 6,500MB/s, and random RW speed of 1,200,000 IO/s. In addition, its architecture enables lower power consumption and data protection, providing performance and reliability in a cost-effective DRAM-less PCIe Gen4 NVMe SSD solution.

The SM2268XT offers a system bus architecture, Host Memory Buffer (HMB) function and the company’s 8th gen NANDXtend ECC technology with a performance-optimized 4KB LDPC engine and RAID to maximize error correction capability. It is designed for next gen, cost effective TLC and QLC 3D NAND flash to enable high-value SSDs for a broader range of laptop PCs from performance to mainstream to value.

“We are proud to introduce the SM2268XT for Client SSDs,” said Wallace Kou, president and CEO. “We have been scaling our SSD controller design wins with leading PC OEMs, and this latest evolution of our PCIe Gen4 controllers demonstrates our commitment to developing products these customers want and need to support future higher speed NAND.“

“We are excited about this high-performance PCIe Gen4 controller from Silicon Motion,” said Atsushi Inoue, senior director, memory division, Kioxia Corp., “We believe that SM2268XT will upgrade the standard of high-performance SSDs to the next level together with our leading BiCS FLASH technology.”

“PCIe Gen4 SSDs are experiencing explosive growth with shipments almost doubling in 2022 and will continue to be the mainstay storage solution in PCs for the next few years,” says Greg Wong, president, Forward Insights. “Silicon Motion’s latest SM2268XT DRAM-less controller enables cost-effective, high-performance storage in PCs supporting the most advanced 3D NAND technologies.”

The company is sampling SM2268XT to key customers.