LAN8187I-JT

Product Overview

Category: Integrated Circuit (IC)

Use: LAN8187I-JT is a high-performance Ethernet transceiver designed for use in local area network (LAN) applications. It provides reliable and efficient data transmission over Ethernet networks.

Characteristics: - High-speed data transfer - Low power consumption - Compact size - Easy integration into existing systems

Package: The LAN8187I-JT comes in a small form factor package, making it suitable for space-constrained applications. It is available in a surface mount package.

Essence: LAN8187I-JT is an essential component for establishing Ethernet connectivity in various devices such as computers, routers, switches, and other network equipment.

Packaging/Quantity: The LAN8187I-JT is typically sold in reels or trays, with a quantity of 2500 units per reel/tray.

Specifications

• Data Transfer Rate: Up to 100 Mbps
• Interface: MII (Media Independent Interface)
• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFN (Quad Flat No-Lead)
• Dimensions: 5mm x 5mm

Detailed Pin Configuration

The LAN8187I-JT has the following pin configuration:

1. VDDA: Analog Power Supply
2. VSSA: Analog Ground
3. TXD0: Transmit Data 0
4. TXD1: Transmit Data 1
5. TX_EN: Transmit Enable
6. RXD0: Receive Data 0
7. RXD1: Receive Data 1
8. CRS_DV: Carrier Sense/Data Valid
9. RX_ER: Receive Error
10. REF_CLK: Reference Clock
11. MDC: Management Data Clock
12. MDIO: Management Data I/O
13. VDDC: Core Power Supply
14. VSSC: Core Ground

Functional Features

• Auto-negotiation: LAN8187I-JT supports auto-negotiation, allowing it to automatically determine the best possible connection speed and duplex mode.
• Wake-on-LAN (WoL): This feature enables the LAN8187I-JT to wake up a device remotely from a low-power state when a specific network activity is detected.
• Loopback Mode: The IC provides a loopback mode for testing and troubleshooting purposes, allowing the user to verify the integrity of the Ethernet link.

Advantages and Disadvantages

Advantages: - High-speed data transfer capability - Low power consumption - Compact size for easy integration - Supports auto-negotiation and Wake-on-LAN features

Disadvantages: - Limited operating temperature range (-40°C to +85°C) - Requires external components for complete Ethernet connectivity

Working Principles

The LAN8187I-JT operates based on the principles of Ethernet communication. It receives data packets from the transmitting device, encodes them into electrical signals, and transmits them over the Ethernet cable. On the receiving end, it decodes the received signals back into data packets and delivers them to the receiving device.

Detailed Application Field Plans

The LAN8187I-JT can be used in various applications, including: 1. Desktop computers and laptops 2. Network switches and routers 3. Industrial automation systems 4. Internet of Things (IoT) devices 5. Embedded systems

Detailed and Complete Alternative Models

1. LAN8720: Similar to LAN8187I-JT, this IC offers high-performance Ethernet connectivity with additional features such as Energy-Efficient Ethernet (EEE) support.
2. DP83848: This IC provides robust Ethernet connectivity with integrated physical layer transceiver (PHY) and supports extended temperature range operation.
3. KSZ8081: A compact Ethernet transceiver with low power consumption and advanced features like LinkMD® cable diagnostics.

These alternative models offer similar functionality to the LAN8187I-JT and can be considered as alternatives based on specific application requirements.

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