LAN8720 Transceiver: Pinout, Benefit and Datasheet [Video]
24 Terminations 1.2V 24 Pin LAN8720A Receivers 2/2 Drivers/Receivers 1 Functions









24 Terminations 1.2V 24 Pin LAN8720A Receivers 2/2 Drivers/Receivers 1 Functions
LAN8720 is a Small Footprint RMII 10/100 Ethernet Transceiver with HP Auto-MDIX Support. This article mainly introduces pinout, benefit, datasheet and other detailed information about Microchip Technology LAN8720.

ESP32 ETH LAN8720
LAN8720 Description
The LAN8720 is a low-power 10BASE-T /100BASE-TX physical layer (PHY) transceiver that transmits and receives on unshielded twisted-pair cable. It is available in both extended commercial and industrial temperature operating versions.
The LAN8720 Interfaces to the MAC layer using a variable voltage digital Interface via the RMII Interface The digital Interface pins are tolerant to 3.6V.
The LAN8720 implements Auto-Negotiation to automatically determine the best possible speed and duplex mode of operation. HP Auto-MDIX support allows using a direct connect LAN cable, or a cross-over path cable.
LAN8720 Pinout
LAN8720 CAD Model
The followings are Symbol, Footprint, 3D Model of LAN8720.

Symbol

Footprint

3D Model
LAN8720 Features
• Single-Chip Ethernet Physical Layer Transceiver (PHY)
• Comprehensive FlexPWR® Technology
- Flexible Power Management Architecture
- LVCMOS Variable I/O Voltage Range: +1.6V to +3.6V
- Integrated 1.2V Regulator
• HP Auto-MDIX Support
• Miniature 24-pin QFN /SQFN Lead-Free RoHS Compliant Packages (4 x 4mm).
Specifications
- TypeParameter
- Factory Lead Time6 Weeks
- Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Surface Mount - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Surface Mount - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
24-VFQFN Exposed Pad - Number of Pins24
- Weight67.698661mg
- Usage LevelIndustrial grade
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
-40°C~85°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tray - Published2012
- JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e3 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
3 (168 Hours) - Number of Terminations24
- TypeTransceiver
- Terminal Finish
Terminal Finish refers to the surface treatment applied to the terminals or leads of electronic components to enhance their performance and longevity. It can improve solderability, corrosion resistance, and overall reliability of the connection in electronic assemblies. Common finishes include nickel, gold, and tin, each possessing distinct properties suitable for various applications. The choice of terminal finish can significantly impact the durability and effectiveness of electronic devices.
Matte Tin (Sn) - annealed - Voltage - Supply
Voltage - Supply refers to the range of voltage levels that an electronic component or circuit is designed to operate with. It indicates the minimum and maximum supply voltage that can be applied for the device to function properly. Providing supply voltages outside this range can lead to malfunction, damage, or reduced performance. This parameter is critical for ensuring compatibility between different components in a circuit.
1.6V~3.6V - Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
QUAD - Terminal Form
Occurring at or forming the end of a series, succession, or the like; closing; concluding.
NO LEAD - Peak Reflow Temperature (Cel)
Peak Reflow Temperature (Cel) is a parameter that specifies the maximum temperature at which an electronic component can be exposed during the reflow soldering process. Reflow soldering is a common method used to attach electronic components to a circuit board. The Peak Reflow Temperature is crucial because it ensures that the component is not damaged or degraded during the soldering process. Exceeding the specified Peak Reflow Temperature can lead to issues such as component failure, reduced performance, or even permanent damage to the component. It is important for manufacturers and assemblers to adhere to the recommended Peak Reflow Temperature to ensure the reliability and functionality of the electronic components.
NOT SPECIFIED - Number of Functions1
- Supply Voltage
Supply voltage refers to the electrical potential difference provided to an electronic component or circuit. It is crucial for the proper operation of devices, as it powers their functions and determines performance characteristics. The supply voltage must be within specified limits to ensure reliability and prevent damage to components. Different electronic devices have specific supply voltage requirements, which can vary widely depending on their design and intended application.
3.3V - Terminal Pitch
The center distance from one pole to the next.
0.5mm - Time@Peak Reflow Temperature-Max (s)
Time@Peak Reflow Temperature-Max (s) refers to the maximum duration that an electronic component can be exposed to the peak reflow temperature during the soldering process, which is crucial for ensuring reliable solder joint formation without damaging the component.
NOT SPECIFIED - Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
LAN8720A - Qualification Status
An indicator of formal certification of qualifications.
Not Qualified - Operating Supply Voltage
The voltage level by which an electrical system is designated and to which certain operating characteristics of the system are related.
1.2V - Number of Channels1
- Interface
In electronic components, the term "Interface" refers to the point at which two different systems, devices, or components connect and interact with each other. It can involve physical connections such as ports, connectors, or cables, as well as communication protocols and standards that facilitate the exchange of data or signals between the connected entities. The interface serves as a bridge that enables seamless communication and interoperability between different parts of a system or between different systems altogether. Designing a reliable and efficient interface is crucial in ensuring proper functionality and performance of electronic components and systems.
Ethernet - Max Supply Current
Max Supply Current refers to the maximum amount of electrical current that a component can draw from its power supply under normal operating conditions. It is a critical parameter that ensures the component operates reliably without exceeding its thermal limits or damaging internal circuitry. Exceeding this current can lead to overheating, performance degradation, or failure of the component. Understanding this parameter is essential for designing circuits that provide adequate power while avoiding overload situations.
21mA - Data Rate
Data Rate is defined as the amount of data transmitted during a specified time period over a network. It is the speed at which data is transferred from one device to another or between a peripheral device and the computer. It is generally measured in Mega bits per second(Mbps) or Mega bytes per second(MBps).
100 Mbps - Protocol
In electronic components, the parameter "Protocol" refers to a set of rules and standards that govern the communication between devices. It defines the format, timing, sequencing, and error checking methods for data exchange between different components or systems. Protocols ensure that devices can understand and interpret data correctly, enabling them to communicate effectively with each other. Common examples of protocols in electronics include USB, Ethernet, SPI, I2C, and Bluetooth, each with its own specifications for data transmission. Understanding and adhering to protocols is essential for ensuring compatibility and reliable communication between electronic devices.
RMII - Number of Drivers/Receivers2/2
- Duplex
In the context of electronic components, "Duplex" refers to a type of communication system that allows for bidirectional data flow. It enables two devices to communicate with each other simultaneously, allowing for both sending and receiving of data at the same time. Duplex communication can be further categorized into two types: half-duplex, where data can be transmitted in both directions but not at the same time, and full-duplex, where data can be sent and received simultaneously. This parameter is crucial in networking and telecommunications systems to ensure efficient and effective data transmission between devices.
Full - Number of Transceivers1
- Simplex/Duplex
In electronic components, the parameter "Simplex/Duplex" refers to the type of communication or data transmission mode supported by the component. Simplex communication is a one-way communication mode where data flows only in one direction, from the sender to the receiver. This means that the sender can only transmit data, and the receiver can only receive data. On the other hand, duplex communication is a two-way communication mode where data can flow in both directions, allowing for simultaneous transmission and reception of data between two devices. Understanding whether a component supports simplex or duplex communication is important for determining how data will be exchanged between devices and ensuring compatibility in a given system.
Full Duplex - Ambient Temperature Range High
This varies from person to person, but it is somewhere between 68 and 77 degrees F on average. The temperature setting that is comfortable for an individual may fluctuate with humidity and outside temperature as well. The temperature of an air conditioned room can also be considered ambient temperature.
85°C - Height1mm
- Length4.1mm
- Width4.1mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsData RateNumber of TransceiversSupply VoltageTerminal PitchTypeMoisture Sensitivity Level (MSL)View Compare
LAN8720AI-CP
24-VFQFN Exposed Pad
24
100 Mbps
1
3.3 V
0.5 mm
Transceiver
3 (168 Hours)
24-VFQFN Exposed Pad
24
100 Mbps
1
3.3 V
0.5 mm
Transceiver
3 (168 Hours)
24-VFQFN Exposed Pad
24
100Mbps
1
1.2 V
0.5 mm
Transceiver
3 (168 Hours)
24-VFQFN Exposed Pad
24
100 Mbps
1
-
0.5 mm
Transceiver
3 (168 Hours)
LAN8720 Power Supply Diagram
The following figures are LAN8720 Power Supply Diagram.

Power Supply Diagram(1.2V Supplied By Internal Regulator)

Power Supply Diagram (1.2V Supplied By External Source)
LAN8720 System Block Diagram
LAN8720 Alternatives
| Part Number | Description | Manufacturer |
| LAN8740-EN-TRTELECOMMUNICATION CIRCUITS | Ethernet Transceiver | Microchip Technology Inc |
| LAN8710AI-EZK-TR-ABCTELECOMMUNICATION CIRCUITS | DATACOM, ETHERNET TRANSCEIVER | Microchip Technology Inc |
| LAN8740A-EN-TRTELECOMMUNICATION CIRCUITS | Ethernet Transceiver, 5 X 5 MM, 0.90 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, SQFN-32 | SMSC |
| LAN8710AI-EZK-TRTELECOMMUNICATION CIRCUITS | DATACOM, ETHERNET TRANSCEIVER, QCC32, 5 X 5 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, QFN-32 | Microchip Technology Inc |
| LAN8710A-EZK-TRTELECOMMUNICATION CIRCUITS | Ethernet Transceiver, 1-Trnsvr, CMOS, 5 X 5 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, QFN-32 | SMSC |
| LAN8740AI-ENTELECOMMUNICATION CIRCUITS | Ethernet Transceiver, 5 X 5 MM, 0.90 MM HEIGHT, HALOGEN FREE AND ROHS COMPLIANT, SQFN-32 | SMSC |
| LAN8720AI-CP-TRTELECOMMUNICATION CIRCUITS | Ethernet Transceiver, 1-Trnsvr, CMOS, 4 X 4 MM, 0.85 MM HEIGHT, ROHS COMPLIANT, QFN-24 | SMSC |
| LAN8740I-ENTELECOMMUNICATION CIRCUITS | Ethernet Transceiver | Microchip Technology Inc |
| LAN8720A-CP-TRTELECOMMUNICATION CIRCUITS | DATACOM, ETHERNET TRANSCEIVER, QCC24, 4 X 4 MM, 0.85 MM HEIGHT, ROHS COMPLIANT, QFN-24 | Microchip Technology Inc |
| LAN8710AI-EZCTELECOMMUNICATION CIRCUITS | DATACOM, ETHERNET TRANSCEIVER, QCC32, 5 X 5 MM, 0.90 MM HEIGHT, ROHS COMPLIANT, QFN-32 | Microchip Technology Inc |
LAN8720 Benefits
• High-Performance 10/100 Ethernet Transceiver
- Compliant With IEEE802.3/802.3u (Fast Ethernet)
- Compliant With ISO 802-3/IEEE 802.3 (10BASE-T)
- Loop-Back Modes
- Auto-Negotiation
- Automatic Polarity Detection And Correction
- Link Status Change Wake-Up Detection
- Vendor-Specific Register Functions
- Supports The Reduced Pin Count RMII Interface
• Power And I/Os
- Various Low Power Modes
- Integrated Power-On Reset Circuit
- Two Status LED Outputs
- Latch-Up Performance Exceeds 150mA Per EIA /JESD 78, Class II
- May Be Used With A Single 3.3V Supply
• Additional Features
- Ability To Use A Low-Cost 25Mhz Crystal For Reduced BOM
• Packaging
- 24-Pin QFN/SQFN (4x4 mm) Lead-Free RoHS Compliant Package With RMII
• Environmental
- Extended Commercial Temperature Range (0°C to +85°C)
- Industrial Temperature Range Version Available (-40°C to +85°C)
LAN8720 Applications
• Set-Top Boxes
• Networked Printers and Servers
• Test Instrumentation
• LAN on Motherboard
• Embedded Telecom Applications
• Video Record/Playback Systems
• Cable Modems/Routers
• DSL Modems/Routers
• Digital Video Recorders
• IP and Video Phones
• Wireless Access Points
• Digital Televisions
• Digital Media Adapters/Servers
• Gaming Consoles
• POE Applications (Refer to Application Note
LAN8720 Package
LAN8720 Manufacturer
Microchip Technology Inc. is an American manufacturer of microcontrollers, memory and analog semiconductors. Its products include microcontrollers (PIC microcontrollers, dsPIC / PIC24, PIC32), serial EEPROM, serial SRAM, KEELOQ components, radio frequency (RF) components, thermal components, power and battery management analog components, and linear , Interface and mixed signal components. There are also some interface components including USB, ZigBee/MiWi, CANbus and Ethernet. The company is headquartered in Chandler, Arizona, and its wafer fabs are located in Tempe, Arizona and Gresham, Oregon.
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Datasheet PDF
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