LAN91C110-PU

Product Overview

Category: Integrated Circuit (IC)

Use: LAN91C110-PU is a high-performance Ethernet controller designed for use in embedded systems. It provides a reliable and efficient solution for connecting devices to local area networks (LANs).

Characteristics: - High-speed Ethernet connectivity - Low power consumption - Small form factor - Robust performance - Easy integration into existing systems

Package: LAN91C110-PU is available in a compact package, making it suitable for space-constrained applications.

Essence: LAN91C110-PU serves as a bridge between an embedded system and an Ethernet network, enabling seamless communication and data transfer.

Packaging/Quantity: The LAN91C110-PU is typically sold in reels or trays, with quantities varying depending on the supplier.

Specifications

• Ethernet Standard: IEEE 802.3
• Data Rate: 10 Mbps or 100 Mbps (auto-negotiation supported)
• Interface: Serial Peripheral Interface (SPI)
• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Package Type: QFP (Quad Flat Package)

Detailed Pin Configuration

The LAN91C110-PU features a specific pin configuration that facilitates its integration into various systems. Here is a detailed breakdown of the pin assignments:

1. VDD - Power supply voltage
2. GND - Ground
3. INT - Interrupt output
4. CS - Chip select input
5. SCLK - Serial clock input
6. SI - Serial data input
7. SO - Serial data output
8. RESET - Reset input
9. ALE - Address latch enable
10. ADDR[0:7] - Address bus
11. D[0:15] - Data bus
12. IRQ - Interrupt request input
13. RDY - Ready output
14. WR - Write enable input

Functional Features

• Full-duplex and half-duplex operation modes
• Automatic polarity correction
• Built-in collision detection and avoidance mechanisms
• Support for various network protocols (TCP/IP, UDP, etc.)
• Integrated DMA controller for efficient data transfer
• Power management features to optimize energy consumption

Advantages and Disadvantages

Advantages: - High-speed Ethernet connectivity enables fast data transfer - Low power consumption prolongs battery life in portable devices - Compact form factor allows for easy integration into space-constrained systems - Robust performance ensures reliable network communication - Easy integration into existing systems reduces development time and effort

Disadvantages: - Limited compatibility with older Ethernet standards - Relatively higher cost compared to some alternative models - Requires knowledge of SPI interface for proper integration

Working Principles

LAN91C110-PU operates by receiving and transmitting Ethernet frames over the network. It utilizes the SPI interface to communicate with the host system, exchanging control and data signals. The integrated DMA controller efficiently manages data transfer between the LAN91C110-PU and the host system's memory.

Detailed Application Field Plans

The LAN91C110-PU finds applications in various fields, including but not limited to: - Industrial automation - Home automation - Internet of Things (IoT) devices - Automotive electronics - Medical equipment - Consumer electronics

Its high-performance Ethernet connectivity makes it suitable for any application requiring reliable and fast network communication.

Detailed and Complete Alternative Models

While LAN91C110-PU is a versatile Ethernet controller, there are alternative models available that cater to different requirements. Some notable alternatives include:

1. LAN8720 - Low-power Ethernet PHY
2. ENC28J60 - Standalone Ethernet controller with integrated MAC and PHY
3. W5500 - Ethernet controller with built-in TCP/IP stack

These alternative models offer different features and capabilities, allowing developers to choose the most suitable option for their specific application needs.

In conclusion, LAN91C110-PU is a high-performance Ethernet controller designed for embedded systems. Its compact size, low power consumption, and robust performance make it an ideal choice for various applications requiring reliable network connectivity. While it has some limitations, its advantages outweigh the disadvantages, making it a popular choice among developers.