Vietsemi Technology's hardened DDR4/3/2 SDRAM PHY and LPDDR5/4x/4/3/2 SDRAM PHY IP is a silicon-proven, Combo PHY supporting speeds up to 4266 Mbps. It is fully compliant with the DFI 4.0 specification, and features include slew rate control, per-bit de-skew, gate training, read and write leveling and built-in self test (BIST).

The hardened PHY macros are currently available in the following technology levels: