Ethernet PHY, supporting 100Mbps/1000Mbps/2.5Gbps
| Part | Package | Size | Interface | Introduction |
| YT8512C/H | QFN-32 | 5*5 mm^2 | MII/RMII(support 3.3V) | 100BASE-TX PHY |
| YT8522C/H/A/E | QFN-32 | 5*5 mm^2 | MII/RMII(support 3.3V/2.5/1.8V/1.5V) | 100BASE-TX PHY |
| YT8521SC | QFN-48 | 6*6 mm^2 | RGMII/SGMII (RGMII support 3.3V/2.5V/1.8V) (Serdes support Fiber1000/100/SGMII) | 1000Base-T PHY |
| YT8531C/P/H | QFN-32 | 5*5 mm^2 | RGMII/SGMII (RGMII support 3.3V/2.5V/1.8V) (Serdes support Fiber1000/100/SGMII) | 1000Base-T PHY |
| YT8531SC/SH | QFN-48 | 6*6 mm^2 | RGMII/SGMII (RGMII support 3.3V/2.5V/1.8V) (Serdes support Fiber1000/100/SGMII) | 1000Base-T PHY |
| YT8821C/H | QFN-48 | 6*6 mm^2 | SGMII-Plus Serdes support 2500BASEX/fiber1000/100/SGMII | 2.5GBASE-T PHY |
| YT8618C/H | LQFP128-E | 14*20mm^2 | Support two QSGMII (5Gbps) | 8*1000Base-T PHY |
| YT8614C/H | LQFP176-E | 20*20mm^2 | Support one QSGMII (5Gbps) | 4*1000Base-X PHT |
