CXMT Pioneers Mass-Production of LPDDR6
21 days ago
- CXMT has started mass production of LPDDR6 memory, debuting in Xiaomi's new flagship smartphone, the Xiaomi 18 Fold, marking the world's first commercial deployment of LPDDR6 in a flagship phone.
- The LPDDR6 chip offers 16GB capacity, supports a maximum data rate of 12800 Mbps (10667 Mbps when paired with an SoC), delivering 60% higher bandwidth than LPDDR5X while cutting power consumption by 20%.
- Key design innovations include a dual-channel architecture with 24-bit native I/O, per-pin calibration for pre-emphasis and DFE, and an intelligent training mechanism for high-speed signal accuracy.
- Power efficiency is enhanced through dual-rail DVFS with hardware-level voltage separation and a dynamic efficiency mode that intelligently schedules operations across varying workloads.
- RAS improvements include Link ECC, On Die ECC, new Per Row Activation Counting (PRAC) to defend against row hammer attacks, and Memory Built-In Self-Test (MBIST) for data integrity.
- Through Design-Process Co-Optimization (DTCO), over 100 optimizations were applied to circuits and layout design rules, enabling smaller, higher-performing CMOS transistors.
- Packaging uses a 1295-ball FBGA PoP with High-K EMC molding, reducing die thermal resistance by roughly 40% and improving heat dissipation during high-load operation.
- LPDDR6 is positioned to support future applications including smartphones, PCs, smart wearables, smart vehicles, edge servers, and robotics, with CXMT scaling production for broader adoption.