Overview
The LAN91C111I-NU is a single-chip Ethernet controller produced by Microchip Technology. This device is designed to support full duplex switched Ethernet and integrates both the Media Access Controller (MAC) and Physical Layer (PHY) functions. It is particularly useful for applications requiring 10/100 Mbps Ethernet connectivity without the need for a PCI interface. The LAN91C111I-NU is packaged in a 128-pin TQFP (Thin Quad Flat Pack) and is RoHS compliant, making it suitable for a wide range of industrial and commercial applications.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Package Type | 128-TQFP (14x14x1mm) |
| Operating Voltage | 3.3 V |
| Ethernet Speed | 10/100 Mbps |
| Interface | MII, EISA, ISA |
| Internal Memory | 8 Kbytes for Receive and Transmit FIFO Buffers |
| Compliance | RoHS Compliant |
| Temperature Range | Industrial Temperature Range |
Key Features
- Fully supports full duplex switched Ethernet.
- Integrated MAC and PHY functions.
- 8 Kbytes internal memory for receive and transmit FIFO buffers.
- Supports MII, EISA, and ISA interfaces.
- Single chip solution for 10/100 Mbps Ethernet connectivity.
- RoHS compliant and lead-free packaging.
Applications
The LAN91C111I-NU is suitable for various applications requiring reliable and efficient Ethernet connectivity. These include:
- Industrial control systems.
- Embedded systems.
- Networked appliances.
- Automotive systems.
- Medical devices.
Q & A
- What is the primary function of the LAN91C111I-NU?
The LAN91C111I-NU is a single-chip Ethernet controller that integrates both MAC and PHY functions for 10/100 Mbps Ethernet connectivity. - What package type does the LAN91C111I-NU use?
The LAN91C111I-NU is packaged in a 128-pin TQFP (Thin Quad Flat Pack). - Is the LAN91C111I-NU RoHS compliant?
Yes, the LAN91C111I-NU is RoHS compliant and lead-free. - What interfaces does the LAN91C111I-NU support?
The LAN91C111I-NU supports MII, EISA, and ISA interfaces. - What is the operating voltage of the LAN91C111I-NU?
The operating voltage of the LAN91C111I-NU is 3.3 V. - How much internal memory does the LAN91C111I-NU have?
The LAN91C111I-NU has 8 Kbytes of internal memory for receive and transmit FIFO buffers. - What are some common applications for the LAN91C111I-NU?
Common applications include industrial control systems, embedded systems, networked appliances, automotive systems, and medical devices. - Does the LAN91C111I-NU support full duplex operation?
Yes, the LAN91C111I-NU fully supports full duplex switched Ethernet. - What is the temperature range for the LAN91C111I-NU?
The LAN91C111I-NU operates within the industrial temperature range. - Where can I find detailed specifications for the LAN91C111I-NU?
Detailed specifications can be found on the official Microchip Technology website, as well as on distributor websites such as Heisener and Mouser Electronics.
