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The LAN8720A-CP-TR is a high-performance, low-power single-chip Ethernet physical layer (PHY) transceiver. It is primarily employed to enable high-speed network connectivity for devices, supporting both 10BASE-T and 100BASE-TX standards, meaning it can operate at either 10Mbps or 100Mbps speeds. It communicates with the Ethernet MAC (Media Access Control) layer via RMII (Reduced Media Independent Interface), an interface that helps reduce pin count and simplify design.

The following are the key specifications for the LAN8720A-CP-TR:

Core Function: 10/100Mbps Ethernet Physical Layer Transceiver (PHY)

Interface Type: RMII (connects to MAC controller)

Supply Voltage: 1.6V to 3.6V (I/O voltage)

Data Rate: 10Mbps, 100Mbps

Package: 24-VFQFN exposed pad (also known as 24-QFN, dimensions 4x4mm)

Operating Temperature: 0°C to +85°C (commercial grade)

Number of Pins: 24

Integrated Regulator: Yes (1.2V)

Auto-Negotiation: Supported

HP Auto-MDIX: Supported

LAN8720A-CP-TR Features

High Performance: Supports 10BASE-T and 100BASE-TX standards in both full-duplex and half-duplex modes.

High Integration: Incorporates a voltage regulator and signal conditioning circuit, eliminating the need for additional external components.

Power Optimisation: Utilises flexPWR technology with a typical operating current of 21mA, offering multiple low-power modes.

Auto-negotiation: Automatically determines optimal speed and duplex operation modes.

Environmental resilience: Operating temperature range of -40°C to +85°C, suitable for industrial and commercial environments.

User-friendly: Supports auto-negotiation for dynamic adjustment of optimal communication parameters.

High reliability: Incorporates over-temperature protection, short-circuit protection, and electrostatic discharge (ESD) safeguards.

Typical Application Areas

The LAN8720A-CP-TR is ideally suited for diverse embedded applications requiring network connectivity:

Consumer electronics: Network printers, servers, set-top boxes, digital televisions (DTV), gaming consoles, digital video recorders (DVR), cable/DSL modems and routers, wireless access points, IP and video telephones.

Industrial control and automation: Industrial control systems, test and measurement instruments, embedded telecommunications applications.

Computers and office equipment: LAN interfaces on motherboards.

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