Microchip 10/100 Ethernet Controller 44QFN

This stand-alone Fast Ethernet Controller from Microchip features an industry-standard Serial Peripheral Interface (SPI) or a flexible parallel interface. It is designed to serve as an Ethernet network interface for any microcontroller equipped with SPI or a standard parallel port.

Meeting all IEEE 802.3 specifications applicable to 10Base-T and 100Base-TX Ethernet, this controller includes optional clauses such as auto-negotiation. It incorporates multiple packet filtering schemes to limit incoming packets and provides an internal, 16-bit wide DMA for fast data throughput. Additionally, it supports hardware IP checksum calculations. For applications requiring the security and authentication features of SSL, TLS, and other cryptography-related protocols, a block of hardware security acceleration engines is provided.

Key Features

• IEEE 802.3 compliant Fast Ethernet controller
• Integrated MAC and 10/100Base-T PHY
• Hardware security acceleration engines
• 24kB Transmit/receive packet buffer SRAM
• Supports one 10/100Base-T port with automatic polarity detection and correction
• Supports auto-negotiation and pause control frames
• Automatic transmit and receive flow control
• Supports half and full-duplex operation
• Programmable automatic retransmit on collision, padding, and CRC generation
• Programmable automatic rejection of erroneous and runt packets
• Support for unicast, multicast, broadcast packets, and promiscuous reception
• Programmable pattern matching and transmit/receive interrupts

With compact dimensions of 43mm x 33mm x 15mm and a lightweight design of just 0.22 grams, this surface-mount device is ideal for space-constrained networking applications.