1.1 Features

12

• Deterministic, Low Transmit and Receive

Latency

• Selectable Frequency Synchronized Clock

Output

• Dynamic Link Quality Monitoring

• TDR Based Cable Diagnostic and Cable Length

Detection

• 10/100 Mb/s Packet BIST (Built in Self Test)

• Error-Free Operation up to 150 Meters CAT5

Cable

• ESD Protection - 8 kV Human Body Model

• 2.5 V and 3.3 V I/Os and MAC Interface

• Auto-MDIX for 10/100 Mbps

• Auto-Crossover in Forced Modes of Operation

• RMII Rev. 1.2 and MII MAC Interface

• RMII Master Mode

• Synchronous Ethernet

• 25 MHz MDC and MDIO Serial Management

Interface

• IEEE 802.3u 100BASE-FX Fiber Interface

• IEEE 1149.1 JTAG

• Programmable LED Support for Link, 10 /100

Mb/s Mode, Duplex, Activity, and Collision

Detect

• Optional 100BASE-TX Fast Link Loss Detection

• Industrial Temperature Range

• 48 Pin WQFN Package (7mm) x (7mm)

1.2 Applications

• Factory Automation

• General Embedded Applications

1.3 Description

The DP83620 is a highly reliable, feature rich device suited for industrial applications. The DP83620 offers

low power consumption, including several intelligent power down states. In addition to low power, the

DP83620 is optimized for cable length performance far exceeding IEEE specifications. The DP83620

includes a 25MHz clock out. This allows the application to be designed with a minimum of external parts,

which in turn results in the lowest possible total cost of the solution.

The DP83620 offers innovative diagnostic features unique to Texas Instruments, including dynamic

monitoring of link quality during standard operation for fault prediction. These advanced features allow the

system designer to implement a fault prediction mechanism to detect and warn of deteriorating and

changing link conditions. This single port fast Ethernet transceiver can support both copper and fiber

media. The DP838620 also provides flexibility by supporting both MII and RMII interfaces.