The DP83849I PHYTER® DUAL is a highly reliable, feature-rich device perfectly suited for industrial applications enabling Ethernet on the factory floor. The DP83849I features two fully independent 10/100 ports for multi-port applications. NATIONAL’s unique port switching capability also allows the two ports to be configured to provide fully integrated range extension, media conversion, hardware-based failover, and port monitoring. The DP83849I provides optimum flexibility in MPU selection by supporting both MII and RMII interfaces. In addition, this device includes a powerful new diagnostics tool to ensure initial network operation and maintenance. In addition to the TDR scheme, commonly used for detecting faults during installation, NATIONAL’s innovative cable diagnostics scheme is also used to identify network faults.
The DP838491 PHYTER® Dual Industrial Temperature Ethernet PHY provides two independent 10/100 Mb/s ports with flexible port switching, auto‑MDIX, and real‑time link‑quality monitoring. It supports both MII and RMII interfaces, making it suitable for a wide range of industrial applications such as factory automation, motor control, and wireless remote base stations.
The device is built in a low‑power 0.18 µm CMOS process, consumes less than 600 mW typical, and is offered in an 80‑pin TQFP package (12 mm × 12 mm). Detailed register maps, pin descriptions, and timing specifications are provided for hardware designers and firmware developers.
| Technology | 0.18 µm CMOS |
|---|---|
| Power Consumption | <600 mW typical |
| Package | 80‑pin TQFP (12 mm × 12 mm) |
| Supported Speeds | 10/100 Mb/s on both ports |
| Auto‑MDIX | Supported for 10/100 Mb/s |
| Interface Types | MII and RMII |
It supports 10 Mb/s and 100 Mb/s on both Ethernet ports.
Yes, Auto‑MDIX is provided for 10/100 Mb/s operation.
The device works with both MII and RMII interfaces.
It is supplied in an 80‑pin TQFP package measuring 12 mm × 12 mm.