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LAN9218-MT
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LAN9218-MT

Product Overview

Category: Network Interface Controller (NIC)

Use: The LAN9218-MT is a high-performance Ethernet controller designed for embedded applications. It provides a reliable and efficient solution for connecting devices to local area networks (LANs).

Characteristics: - High-speed data transfer capabilities - Low power consumption - Compact package size - Robust design for industrial environments

Package: The LAN9218-MT comes in a small form factor package, making it suitable for space-constrained applications. It is available in surface mount technology (SMT) packaging.

Essence: The LAN9218-MT is an essential component for enabling network connectivity in embedded systems. It allows devices to communicate with each other over Ethernet networks, facilitating data exchange and remote control.

Packaging/Quantity: The LAN9218-MT is typically sold in reels or trays, depending on the manufacturer's packaging standards. The exact quantity may vary, but it is commonly available in quantities of 100 or more.

Specifications

  • Interface: 10/100 Mbps Ethernet
  • Operating Voltage: 3.3V
  • Operating Temperature: -40°C to +85°C
  • Data Transfer Rate: Up to 100 Mbps
  • Supported Protocols: TCP/IP, UDP, IPv4, IPv6
  • Host Interface: SPI, Microwire, or 8/16-bit parallel bus
  • Power Consumption: <200mW (typical)
  • Package Dimensions: 7mm x 7mm (approx.)

Pin Configuration

The LAN9218-MT features a compact pin configuration that enables easy integration into various system designs. The following table provides a detailed pinout description:

| Pin Number | Pin Name | Description | |------------|----------|-------------| | 1 | VDD | Power Supply (3.3V) | | 2 | GND | Ground | | 3 | TXD0 | Transmit Data 0 | | 4 | TXD1 | Transmit Data 1 | | 5 | RXD0 | Receive Data 0 | | 6 | RXD1 | Receive Data 1 | | 7 | CRS | Carrier Sense | | 8 | COL | Collision Detect | | 9 | MDC | Management Data Clock | | 10 | MDIO | Management Data I/O | | ... | ... | ... |

Note: The pin configuration may vary depending on the specific package variant.

Functional Features

The LAN9218-MT offers several functional features that enhance its performance and usability:

  • Integrated MAC and PHY: The controller integrates both the Media Access Control (MAC) and Physical Layer (PHY) functions, reducing the need for external components.
  • Auto-Negotiation: The LAN9218-MT supports auto-negotiation, allowing it to automatically determine the best communication parameters with the connected device.
  • Wake-on-LAN Support: It provides Wake-on-LAN functionality, enabling devices to be remotely powered on or awakened from sleep mode.
  • Jumbo Frame Support: The controller supports jumbo frames, allowing for more efficient transmission of large data packets.
  • Built-in Diagnostics: It includes built-in diagnostics for monitoring link status, cable integrity, and other network-related parameters.

Advantages and Disadvantages

Advantages: - High-performance Ethernet connectivity - Low power consumption - Compact form factor - Robust design for industrial applications - Integrated MAC and PHY for simplified integration

Disadvantages: - Limited to 10/100 Mbps Ethernet speeds - May require additional components for certain applications (e.g., magnetics)

Working Principles

The LAN9218-MT operates based on the principles of Ethernet communication. It uses the MAC and PHY functions to transmit and receive data packets over the network. The controller follows the Ethernet protocol standards, ensuring compatibility with other Ethernet devices.

When connected to a network, the LAN9218-MT establishes a link with the remote device through auto-negotiation. It then enables data transfer by encoding and decoding the information using the Ethernet protocol. The integrated diagnostics monitor the link status and provide feedback on network performance.

Application Field Plans

The LAN9218-MT is widely used in various embedded systems that require reliable network connectivity. Some of the common application fields include:

  1. Industrial Automation: The controller enables communication between industrial devices, facilitating real-time control and monitoring in factory automation systems.
  2. Internet of Things (IoT): It provides network connectivity to IoT devices, allowing them to exchange data and communicate with cloud services.
  3. Home Automation: The LAN9218-MT enables smart home devices to connect to local networks, enabling centralized control

技術ソリューションにおける LAN9218-MT の適用に関連する 10 件の一般的な質問と回答をリストします。

Sure! Here are 10 common questions and answers related to the application of LAN9218-MT in technical solutions:

  1. Q: What is LAN9218-MT? A: LAN9218-MT is a highly integrated Ethernet controller with an embedded 10/100 Ethernet MAC and PHY.

  2. Q: What are the key features of LAN9218-MT? A: The key features of LAN9218-MT include support for MII/RMII interfaces, 8KB transmit/receive FIFOs, and various power management modes.

  3. Q: What applications can LAN9218-MT be used for? A: LAN9218-MT can be used in various applications such as industrial automation, home automation, IoT devices, and embedded systems requiring Ethernet connectivity.

  4. Q: How does LAN9218-MT connect to a microcontroller or processor? A: LAN9218-MT connects to a microcontroller or processor using either the MII (Media Independent Interface) or RMII (Reduced Media Independent Interface) interface.

  5. Q: Can LAN9218-MT support both half-duplex and full-duplex communication? A: Yes, LAN9218-MT supports both half-duplex and full-duplex communication modes.

  6. Q: What is the maximum data transfer rate supported by LAN9218-MT? A: LAN9218-MT supports a maximum data transfer rate of 100 Mbps.

  7. Q: Does LAN9218-MT support auto-negotiation? A: Yes, LAN9218-MT supports auto-negotiation, allowing it to automatically determine the best possible connection speed and duplex mode.

  8. Q: Can multiple LAN9218-MT devices be connected together in a network? A: Yes, multiple LAN9218-MT devices can be connected together in a network using standard Ethernet switches or hubs.

  9. Q: What power supply voltage does LAN9218-MT require? A: LAN9218-MT requires a power supply voltage of 3.3V.

  10. Q: Are there any evaluation boards or development kits available for LAN9218-MT? A: Yes, there are evaluation boards and development kits available that provide a platform for testing and prototyping with LAN9218-MT.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.