ENC28J60-I/SO

Product Overview

Category: Integrated Circuit (IC)

Use: The ENC28J60-I/SO is a versatile Ethernet controller chip that provides network connectivity to microcontrollers and other embedded systems. It enables these devices to communicate over an Ethernet network, allowing for remote control, data transfer, and internet connectivity.

Characteristics: - Small form factor - Low power consumption - Supports full-duplex or half-duplex communication - Compatible with 10BASE-T and 100BASE-TX Ethernet networks - Built-in MAC and PHY layers - SPI interface for easy integration with microcontrollers

Package: The ENC28J60-I/SO is available in a small outline (SO) package, which is suitable for surface mount applications. This package ensures easy integration into electronic circuits and provides mechanical stability.

Essence: The essence of the ENC28J60-I/SO lies in its ability to provide cost-effective Ethernet connectivity to microcontroller-based systems. It eliminates the need for additional Ethernet modules or complex circuitry, making it an ideal choice for resource-constrained designs.

Packaging/Quantity: The ENC28J60-I/SO is typically sold in reels or tubes, containing a specified quantity of chips per package. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply Voltage: 3.3V
• Operating Temperature Range: -40°C to +85°C
• Data Rate: 10 Mbps or 100 Mbps (auto-negotiation supported)
• Interface: Serial Peripheral Interface (SPI)
• Memory: 8 KB transmit/receive packet dual-port SRAM
• Supported Protocols: TCP/IP, UDP, ICMP, ARP, IPv4, and more

Pin Configuration

The ENC28J60-I/SO features a total of 28 pins, which are assigned specific functions for proper operation. The pin configuration is as follows:

Pin 1: VSS Pin 2: VDD Pin 3: INT Pin 4: WOL Pin 5: SO Pin 6: SI Pin 7: SCK Pin 8: CS Pin 9: RESET Pin 10: VCAP Pin 11: VREF Pin 12: VREG Pin 13: VBAT Pin 14: NC Pin 15: AN0 Pin 16: AN1 Pin 17: AN2 Pin 18: AN3 Pin 19: AN4 Pin 20: AN5 Pin 21: AN6 Pin 22: AN7 Pin 23: AN8 Pin 24: AN9 Pin 25: AN10 Pin 26: AN11 Pin 27: AN12 Pin 28: AN13

Functional Features

• Integrated MAC and PHY layers for Ethernet communication
• Supports half-duplex and full-duplex modes of operation
• Automatic retransmission on collision detection
• Programmable wake-on-LAN (WOL) functionality
• Built-in 8 KB dual-port SRAM for transmit/receive packet buffering
• Flexible SPI interface for easy integration with microcontrollers

Advantages and Disadvantages

Advantages: - Compact size and low power consumption - Cost-effective solution for adding Ethernet connectivity to microcontroller-based systems - Supports various network protocols for seamless integration into existing networks - Easy to integrate with microcontrollers using the SPI interface

Disadvantages: - Limited memory capacity for packet buffering - Requires external components for voltage regulation and clock generation - May require additional circuitry for certain applications, such as power-over-Ethernet (PoE)

Working Principles

The ENC28J60-I/SO operates by interfacing with a microcontroller or other host device through the SPI interface. It handles the low-level Ethernet communication protocols, including packet transmission and reception, collision detection, and MAC address filtering.

When a data packet is received, the ENC28J60-I/SO buffers it in its internal SRAM and notifies the host device through an interrupt pin. The host device can then read the packet from the chip's memory and process it accordingly. Similarly, when the host device wants to transmit a packet, it writes the packet data to the chip's memory, and the ENC28J60-I/SO takes care of transmitting it over the Ethernet network.

Detailed Application Field Plans

The ENC28J60-I/SO finds applications in various fields where microcontroller-based systems require Ethernet connectivity. Some common application areas include:

1. Internet of Things (IoT) devices: Enables IoT devices to connect to the internet and communicate with other devices or cloud services.
2. Industrial automation: Provides network connectivity to control systems, allowing for remote monitoring