Microchip ENC28J60-I/SO Ethernet Controller SPI 28SOIC

The Microchip ENC28J60-I/SO Ethernet Controller is a stand-alone Ethernet controller that provides a simple network interface for any microcontroller equipped with a serial peripheral interface (SPI). It meets all IEEE 802.3 specifications and includes an integrated MAC and 10BASE-T PHY, which simplifies hardware design and reduces component count.

Overview

This device features an 8 Kbyte transmit/receive packet dual-port buffer, an internal DMA module for fast memory copying, and hardware-assisted IP checksum calculation to offload the host controller. Programmable automatic retransmission on collision helps improve data integrity, while programmable pattern matching of up to 64 bytes at a user-defined offset supports efficient packet filtering.

Key Features

• SPI interface with clock rates up to 20 MHz
• IEEE 802.3 compliant with 10BASE-T support
• Integrated MAC and PHY
• 8 Kbyte transmit/receive dual-port packet buffer
• Internal DMA for fast memory copying
• Hardware-assisted IP checksum calculation
• Programmable automatic retransmit on collision
• Programmable pattern matching of up to 64 bytes at a user-defined offset
• Two dedicated pins for LED link and network activity indication

Operating Conditions

The controller operates over a voltage range of 3.1 V to 3.6 V and is housed in a 28-lead SOIC surface-mount package. It is rated for industrial temperature ranges from -40 °C to +85 °C, making it well suited to harsh environments.

Applications

The ENC28J60-I/SO is a versatile solution for embedded networking applications, including VoIP, industrial and building automation, home control, and security systems.