OVERVIEW
The ENC28J60 is a stand-alone Ethernet controller with an industry standard Serial Peripheral Interface (SPI). It is designed to serve as an Ethernet network interface for any controller equipped with SPI.

Ethernet Controller Features
• IEEE 802.3™ Compatible Ethernet Controller
• Fully Compatible with 10/100/1000Base-T Networks
• Integrated MAC and 10Base-T PHY
• Supports One 10Base-T Port with Automatic Polarity Detection and Correction
• Supports Full and Half-Duplex modes
• Programmable Automatic Retransmit on Collision
• Programmable Padding and CRC Generation
• Programmable Automatic Rejection of Erroneous Packets
• SPI Interface with Clock Speeds up to 20 MHz

Buffer
• 8-Kbyte Transmit/Receive Packet Dual Port SRAM
• Configurable Transmit/Receive Buffer Size
• Hardware Managed Circular Receive FIFO
• Byte-Wide Random and Sequential Access with Auto-Increment
• Internal DMA for Fast Data Movement
• Hardware Assisted Checksum Calculation for Various Network Protocols

Medium Access Controller (MAC) Features
• Supports Unicast, Multicast and Broadcast Packets
• Programmable Receive Packet Filtering and Wake-up Host on Logical AND or OR of the Following:
   - Unicast destination address
   - Multicast address
   - Broadcast address
   - Magic Packet™
   - Group destination addresses as defined by 64-bit Hash Table
   - Programmable Pattern Matching of up to 64 bytes at user-defined offset

Physical Layer (PHY) Features
• Loopback mode
• Two Programmable LED Outputs for LINK, TX, RX, Collision and Full/Half-Duplex Status

Operational
• Six Interrupt Sources and One Interrupt Output Pin
• 25 MHz Clock Input Requirement
• Clock Out Pin with Programmable Prescaler
• Operating Voltage of 3.1V to 3.6V (3.3V typical)
• 5V Tolerant Inputs
• Temperature Range: -40°C to +85°C Industrial, 0°C to +70°C Commercial (SSOP only)
• 28-Pin SPDIP, SSOP, SOIC, QFN Packages