LAN9118-MT

Controllers Overview

The LAN9118-MT is a high-performance, single-chip 10/100 Ethernet controller designed for embedded applications requiring high data rates and low CPU overhead. It integrates an IEEE 802.3 compliant MAC and PHY with a 32-bit SRAM-like host interface. The device features a 16-KByte configurable FIFO memory buffer capable of storing over 200 packets to eliminate dropped packets. It supports 10BASE-T and 100BASE-TX speeds in full or half-duplex modes, includes Wake on LAN capabilities, and operates within a commercial temperature range of 0°C to +70°C.

Controllers Feature Summary

• Integrates Ethernet MAC and PHY with a high-performance SRAM-like slave interface for glue-less connection to 16-bit and 32-bit microprocessors.
• Features large transmit and receive FIFOs with configurable allocation to accommodate high bandwidth and latency applications while minimizing overrun conditions.
• Supports comprehensive power management modes including Wake on LAN, Magic Packet detection, and Link Status Change for energy-sensitive designs.
• Provides flexible address filtering modes including perfect addressing, hash-filtered multicast, and promiscuous mode for robust network packet handling.

Controllers Applications

• High-end cable, satellite, and IP set-top boxes
• Video distribution systems and multi-room PVRs
• Digital video recorders and high-definition televisions
• Home gateways and digital media clients/servers

Controllers Procurement Notes

Verify the specific suffix 'MT' against the manufacturer's current product identification system to confirm package type and temperature grade. Ensure the ordering code matches the required RoHS compliance status and lead time constraints. Cross-reference the datasheet revision history for any silicon errata that may impact integration. Confirm availability through authorized Microchip distributors to avoid counterfeit components.

Controllers Selection Notes

Select the LAN9118-MT when a non-PCI Ethernet solution is required for 32-bit or 16-bit embedded CPUs. It is suitable for applications needing integrated PHY functionality without external transceivers. Consider this part for designs prioritizing low CPU overhead via Slave-DMA support. Evaluate the 16K-byte internal RAM capacity against expected packet throughput requirements to ensure adequate buffering for burst-mode traffic.

Controllers Part Context

The LAN9118 belongs to a family of non-PCI Ethernet controllers from Microchip Technology. It serves as a bridge between embedded processors and Ethernet networks, replacing legacy PCI-based solutions. The device simplifies hardware design by integrating MAC, PHY, and memory, reducing component count and board space compared to discrete solutions.

Controllers Replacement Considerations

The LAN9118 is pin-compatible with other members of the LAN9118 family, including the LAN9117, LAN9116, and LAN9115. Verify functional differences such as interface width (16-bit vs 32-bit) and feature sets before substituting. Consult the specific datasheets for these variants to ensure compatibility with existing firmware and hardware configurations.