National Semiconductor Corporation released DP83849IF PHYTER® DUAL Industrial Temperature with Fiber Support (FX) and Flexible Switching Dual Port 10/100 Mb/s Ethernet Physical Layer Transceiver technology. This product has two fully independent 10/100 ports, suitable for multi-port applications, supports MII and RMII interfaces, and also supports copper and fiber media. It also includes a powerful new diagnostic tool to ensure initial network operation and maintenance.
The DP83849IF PHYTER is a dual‑port 10/100 Mb/s Ethernet transceiver designed for industrial applications. It offers flexible port switching, support for both copper and fiber media, and interfaces for MII, RMII, and SNI, providing designers with redundancy, media conversion, and fail‑over capabilities.
The handbook covers pin descriptions, configuration options, auto‑negotiation, LED control, register definitions, electrical specifications, and mechanical dimensions. Detailed diagrams and tables guide users through hardware reset, software reset, diagnostics such as TDR‑based cable testing, and power‑down management.
| Power consumption | <600 mW (typical) |
|---|---|
| MAC interface voltage | 3.3 V |
| Package | 80‑pin TQFP (12 mm × 12 mm) |
The device provides TDR‑based cable diagnostics and dynamic link quality monitoring.
Typical power consumption is less than 600 mW.
It is offered in an 80‑pin TQFP package measuring 12 mm × 12 mm.