| PartNumber | VSC8256YMR-01 | VSC8254YMR-01 | VSC8257YMR |
| Description | Ethernet ICs 4p 10G WAN/LAN XFI SFI Adv Repeater | Ethernet ICs 2p 10G WAN/LAN XFI SFI MACsec+1588 PHY | Ethernet ICs Quad 10G Ethernet WAN/LAN XFI SFI PHY VeriTime IEEE1588v2 |
| Manufacturer | Microchip | Microchip | Microchip |
| Product Category | Ethernet ICs | Ethernet ICs | Ethernet ICs |
| RoHS | Y | Y | Y |
| Product | Ethernet Transceivers | - | Ethernet Transceivers |
| Number of Transceivers | 4 Transceiver | - | 4 Transceiver |
| Data Rate | 1.25 Gb/s, 9.95 Gb/s, 10.3 Gb/s | - | 10 Gb/s |
| Interface Type | Serial | - | 2-Wire, MDIO, SPI |
| Operating Supply Voltage | 1 V, 1.2 V | - | 1 V, 1.2 V |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | HFCBGA-256 | - | - |
| Packaging | Tray | Tray | Tray |
| Brand | Microchip / Microsemi | Microchip / Microsemi | Microchip / Microsemi |
| Product Type | Ethernet ICs | Ethernet ICs | Ethernet ICs |
| Standard | 1GBASE-KR, 10GBASE-KR | - | - |
| Factory Pack Quantity | 90 | 84 | 90 |
| Subcategory | Communication & Networking ICs | Communication & Networking ICs | Communication & Networking ICs |