LAN91C111I-NU Network Controllers by Microchip Technology

10/100 Base-T/TX Ethernet Controller with 16/32 Bit Interface

Status: Active
Series: LAN91C111
RoHS: Compliant
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The Microchip LAN91C111 is designed to facilitate the implementation of a third generation of Fast Ethernet connectivity solutions for embedded applications. For this third generation of products, flexibility and integration dominate the design requirements. The LAN91C111 is a mixed signal Analog/Digital device that implements the MAC and PHY portion of the CSMA/CD protocol at 10 and 100 Mbps. The design will also minimize data throughput constraints utilizing a 32-bit, 16-bit or 8-bit bus Host interface in embedded applications.

The total internal memory FIFO buffer size is 8 Kbytes, which is the total chip storage for transmit and receive operations.

The Microchip LAN91C111 is software compatible with the LAN9000 family of products.


*The LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

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Prices starting from US$25.29

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Features

Single Chip Ethernet Controller
Dual Speed - 10/100 Mbps
Fully Supports Full Duplex Switched Ethernet
Supports Burst Data Transfer
8 Kbytes Internal Memory for Receive and Transmit FIFO Buffers
Enhanced Power Management Features
Optional Configuration via Serial EEPROM Interface
Supports 8, 16 and 32 Bit CPU Accesses
Internal 32 Bit Wide Data Path (into Packet Buffer Memory)
Built-in Transparent Arbitration for Slave Sequential Access Architecture
Flat MMU Architecture with Symmetric Transmit and Receive Structures and Queues
3.3V Operation with 5V Tolerant I/O Buffers
Single 25 MHz Reference Clock for Both PHY and MAC
External 25 MHz Output Pin for an External PHY Supporting PHY's Physical Media
Low Power CMOS Design
ARM
SH
Power PC
Coldfire
680X0, 683XX
MIPS R3000
3.3V MII (Media Independent Interface) MAC-PHY Interface Running at Nibble Rate
MII Management Serial Interface
128 Pin QFP RoHS compliant package
128 Pin TQFP 1.0 mm height RoHS compliant package
Commercial Temperature Range from 0°C to 70°C (LAN91C111)
Industrial Temperature Range from -40°C to 85°C (LAN91C111i)
Fully Integrated IEEE 802.3/802.3u - 100BASE-TX/10BASE-T Physical Layer
Auto Negotiation: 10/100, Full/Half Duplex
On Chip Wave Shaping - No External Filters Required
Adaptive Equalizer
Baseline Wander Correction
Link
Activity
Full Duplex
10/100
Transmit
Receive

Specifications

Comments 10Base-T/100Base-TX Ethernet Controller with 16/32 bit interface
Ethernet Bandwidth 10/100Mbps
TX/RX RAM Buffer(Bytes) 8K
Interrupt Pin 1
LEDs 2
Op. Voltage (V) 0
# Ethernet Ports 1
Temp Range Min -40
Temp Rang Max 85
Mixed Endian No
Checksum Offload No
# of Ether Ports 0
Fiber Support No
Interface 16-bit or 32-bit
Buffer size Rx (KB) 0
Buffer size Tx (KB) 0
Supply voltage (V) 0
Vdd I/O (V) 3.3
LinkMD Cable Diag No
ESD Rating (KV) 0
WOL No
Largets Pkt-Size Bytes 0
# of VLAN 0
Pins | Packaging 128 | TQFP
Temp Range -40C to +85C
Packing Media Tray (90)

Last 6 months Inventory & Pricing History


Resources






Environmental Information

JEDEC Indicator e3
ROHS Compliant
China EFUP Compliant
Device Weight (g) 0.5575
Shipping Weight (kg) 1.8
Lead Count 128
Package Type TQFP
Package Width or Size 14x14x1mm
Soldering Composition Matte Tin

Alternative Descriptions

Microchip LAN91C111I-NU Controller IC | RS
10/100 Non-PCI Ethernet Single Chip MAC and PHY | Microchip Technology
Ethernet Controller, MAC & PHY Ethernet Controller, IEEE 802.3, IEEE 802.3u, 2.97 V, 3.63 V, TQFP | Avnet Silica
Ethernet Controller, 100 Mbps, Ieee 802.3, Ieee 802.3U, 2.97 V, 3.63 V, Tqfp, 128 Rohs Compliant: Yes |Microchip Technology LAN91C111I-NU | Newark Electronics
LAN91C111I Series 3.3 V 10/100 Non-PCI Ethernet Single Chip MAC + PHY - TQFP-128 | Future Electronics
IC: Ethernet controller | TME
LAN91C111I-NU, ETHERNET CONTROLLER 10/100 MBITS/S MII, EISA, ISA,3.3V,128-PIN TQFP | RS Americas
CONTROLLER, ENET, MAC+PHY, 128TQFP | Farnell


Frequently Asked Questions

Where can I find additional details, specifications and documents for a LAN91C111I-NU?

Additional datasheets, footprints and schematics for LAN91C111I-NU are listed on our Part Details page. You can also find images and similar parts to LAN91C111I-NU on this page.

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Distributor pricing and stock information is available for LAN91C111I-NU on our Product Comparison page. Access via the 'View Pricing & Stock' button to view LAN91C111I-NU price breaks, MOQs, lead times, inventory and SKUs from distributors.

What category does LAN91C111I-NU fall under?

The LAN91C111I-NU is listed under Semiconductors - ICs > Network Controllers > Ethernet Controllers.

Can I view similar or alternative parts?

You can view similar parts to LAN91C111I-NU when available in the Ethernet Controllers range under the specifications section at the bottom of the details page.

Who can I contact for technical support of the product?

Submit any questions directly to the customer support team of the distributor listing the product. For the LAN91C111I-NU you can contact the distributor directly for product support, shipping queries etc.

Is the LAN91C111I-NU RoHS compliant?

Yes. This part has been flagged as RoHS Compliant by Microchip Technology.

Which authorised distributors for LAN91C111I-NU have stock available?

Authorised distributors including RS, Microchip Technology, Avnet Silica, Newark Electronics and Future Electronics have stock available or on a lead time for LAN91C111I-NU.

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