LAN9250T/PT

Product Overview

Category

The LAN9250T/PT belongs to the category of Ethernet controllers.

Use

It is primarily used for providing Ethernet connectivity in various electronic devices and systems.

Characteristics

• High-performance Ethernet controller
• Supports 10/100 Mbps data rates
• Designed for industrial applications
• Low power consumption
• Robust and reliable operation

Package

The LAN9250T/PT comes in a compact package, suitable for surface mount technology (SMT) assembly.

Essence

The essence of the LAN9250T/PT lies in its ability to enable Ethernet communication in industrial devices, ensuring reliable and efficient data transfer.

Packaging/Quantity

The product is typically packaged in reels or trays, with varying quantities depending on the manufacturer's specifications.

Specifications

• Data Rate: 10/100 Mbps
• Interface: SPI (Serial Peripheral Interface)
• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFN (Quad Flat No-Lead)

Detailed Pin Configuration

The LAN9250T/PT has the following pin configuration:

1. VDDIO: Power supply for I/O pins
2. VDD33: Power supply for internal circuitry
3. GND: Ground reference
4. INT_N: Interrupt output
5. SCLK: Serial clock input
6. MOSI: Master Out Slave In data input
7. MISO: Master In Slave Out data output
8. CS_N: Chip select input
9. RESET_N: Reset input
10. REF_CLK: Reference clock input
11. TX_EN: Transmit enable output
12. TXD[3:0]: Transmit data outputs
13. RXD[3:0]: Receive data inputs
14. CRS_DV: Carrier Sense/Data Valid input
15. RX_ER: Receive error output
16. MDIO: Management data I/O
17. MDC: Management data clock

Functional Features

• Integrated Ethernet MAC (Media Access Control) and PHY (Physical Layer)
• Supports full-duplex and half-duplex communication modes
• Auto-negotiation for link speed and duplex mode
• Built-in DMA (Direct Memory Access) engine for efficient data transfer
• Supports various network protocols, including TCP/IP and UDP
• Provides hardware-assisted checksum offloading for improved performance

Advantages and Disadvantages

Advantages

• High-performance Ethernet controller suitable for industrial applications
• Low power consumption for energy-efficient operation
• Compact package for easy integration into electronic devices
• Robust and reliable communication capabilities

Disadvantages

• Limited to 10/100 Mbps data rates, not suitable for higher-speed networks
• Requires external components for complete Ethernet connectivity
• May require additional software development for specific applications

Working Principles

The LAN9250T/PT operates by receiving and transmitting Ethernet frames through its integrated MAC and PHY. It communicates with the host microcontroller using the SPI interface. The built-in DMA engine ensures efficient data transfer between the LAN9250T/PT and the host system.

Detailed Application Field Plans

The LAN9250T/PT finds applications in various industrial systems, including:

1. Industrial automation
2. Robotics
3. Process control
4. Factory automation
5. Building management systems
6. Energy management systems

Detailed and Complete Alternative Models

1. LAN8720: Similar Ethernet controller with reduced features and lower cost.
2. LAN9352/LAN9353: Dual-port Ethernet controllers for applications requiring multiple interfaces.
3. LAN7430/LAN7431: Gigabit Ethernet controllers for high-speed network applications.

These alternative models provide different features and capabilities to suit specific application requirements.

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