Overview
The Microchip LAN91C111I-NU-E2, originally developed by SMSC (Standard Microsystems Corporation), is a single-chip Ethernet controller designed to facilitate the implementation of Fast Ethernet connectivity solutions for embedded applications. This device integrates both the MAC (Media Access Controller) and PHY (Physical Layer) portions of the CSMA/CD (Carrier Sense Multiple Access with Collision Detection) protocol, supporting both 10 Mbps and 100 Mbps data rates. It is software compatible with the LAN9000 family of products, ensuring ease of integration and compatibility with existing systems.
Key Specifications
| Specification | Details |
|---|---|
| Data Rate | 10/100 Mbps |
| Bus Interface | 32-bit, 16-bit, or 8-bit |
| Internal Memory | 8 Kbytes FIFO buffer |
| Package Type | 128-pin TQFP (Thin Quad Flat Package) |
| Package Dimensions | 14x14x1mm |
| Soldering Composition | Matte Tin |
| RoHS Compliance | Yes |
Key Features
- Full support for full duplex switched Ethernet.
- Supports burst data transfer to minimize data throughput constraints.
- Flexible host interface options (32-bit, 16-bit, or 8-bit bus).
- Internal 8 Kbytes FIFO buffer for transmit and receive operations.
- Software compatibility with the LAN9000 family of products.
- Analog/Digital device implementing the MAC and PHY portions of the CSMA/CD protocol.
Applications
The LAN91C111I-NU-E2 is designed for use in various embedded applications requiring Fast Ethernet connectivity. These include industrial control systems, medical devices, automotive systems, and other networked embedded systems where reliable and high-speed Ethernet connectivity is essential.
Q & A
- What are the supported data rates for the LAN91C111I-NU-E2? The device supports both 10 Mbps and 100 Mbps data rates.
- What type of bus interface does the LAN91C111I-NU-E2 support? It supports 32-bit, 16-bit, or 8-bit bus interfaces.
- How much internal memory does the LAN91C111I-NU-E2 have? The device has an 8 Kbytes FIFO buffer for transmit and receive operations.
- What is the package type of the LAN91C111I-NU-E2? It is available in a 128-pin TQFP package.
- Is the LAN91C111I-NU-E2 RoHS compliant? Yes, it is RoHS compliant.
- What is the significance of the device being software compatible with the LAN9000 family? This compatibility ensures ease of integration and compatibility with existing systems.
- What are some common applications for the LAN91C111I-NU-E2? It is used in industrial control systems, medical devices, automotive systems, and other networked embedded systems.
- Does the LAN91C111I-NU-E2 support full duplex operation? Yes, it fully supports full duplex switched Ethernet.
- How does the device minimize data throughput constraints? It supports burst data transfer to minimize data throughput constraints.
- What is the soldering composition of the LAN91C111I-NU-E2 package? The package has a matte tin soldering composition.
