Overview
The DP83849I, produced by Texas Instruments, is a highly reliable and feature-rich dual-port 10/100 Mb/s Ethernet Physical Layer Transceiver. This device is designed for industrial applications, offering enhanced flexibility and reliability for Ethernet connectivity on the factory floor. It features two fully independent 10/100 ports, supporting multi-port applications with unique port switching capabilities. This includes integrated range extension, media conversion, hardware-based failover, and port monitoring. The DP83849I is built using low-power 3.3-V, 0.18-µm CMOS technology, ensuring low power consumption and high performance.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Technology | Low-power 3.3-V, 0.18-µm CMOS | |
| Ports | Dual 10/100 Mb/s Ethernet ports | |
| Interfaces | MII, RMII, SNI | |
| Power Consumption | < 600 mW Typical | |
| Auto-Negotiation | IEEE 802.3u Auto-Negotiation and Parallel Detection | |
| MAC Interface | 3.3-V MAC Interface | |
| Clock Reference | 25 MHz crystal/oscillator input | |
| Package | 80-pin TQFP (12-mm × 12-mm) | |
| Operating Temperature | Industrial temperature range | |
| ESD Ratings | Human body model (HBM): ±4000 V |
Key Features
- Low-power consumption (<600 mW typical)
- IEEE 802.3u MII, RMII, and SNI interfaces
- IEEE 802.3u Auto-Negotiation and Parallel Detection
- Auto-MDIX for 10/100 Mb/s
- Energy Detection Mode
- Dynamic Integrity Utility and Dynamic Link Quality Monitoring
- TDR-based Cable Diagnostic and Cable Length Detection
- Optimized latency for real-time Ethernet
- Programmable LED support for link, 10/100 Mb/s mode, activity, duplex, and collision detect
- Single register access for complete PHY status
- 10/100 Mb/s Packet BIST (Built-In Self Test)
- IEEE 1149.1 JTAG interface
Applications
- Medical Instrumentation
- Wireless Remote Base Station
- Factory Automation
- General Embedded Applications
- Motor and Motion Control
Q & A
- What is the primary function of the DP83849I?
The DP83849I is a dual-port 10/100 Mb/s Ethernet Physical Layer Transceiver designed for industrial applications.
- What interfaces does the DP83849I support?
The DP83849I supports MII, RMII, and SNI interfaces.
- What is the typical power consumption of the DP83849I?
The typical power consumption is less than 600 mW.
- Does the DP83849I support auto-negotiation?
- What is the package type and size of the DP83849I?
The DP83849I comes in an 80-pin TQFP package with a body size of 12-mm × 12-mm.
- What are some of the key features of the DP83849I?
Key features include low-power consumption, auto-MDIX, energy detection mode, dynamic link quality monitoring, and TDR-based cable diagnostics.
- What applications is the DP83849I suited for?
The DP83849I is suited for medical instrumentation, wireless remote base stations, factory automation, general embedded applications, and motor and motion control.
- Does the DP83849I support real-time Ethernet?
- What diagnostic tools does the DP83849I provide?
The DP83849I includes TDR-based cable diagnostics and dynamic link quality monitoring.
- Is the DP83849I compliant with any specific standards?
