LAN91C111

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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.

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
  • Supports Multiple Embedded Processor Host Interfaces ARM SH Power PC Coldfire 680X0, 683XX MIPS R3000
  • 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
  • LED Outputs (User Selectable - Up to Two LED Functions at One Time) Link Activity Full Duplex 10/100 Transmit Receive
  • Link
  • Activity
  • Full Duplex
  • 10/100
  • Transmit
  • Receive
Parameter
Parameter Name Value Value
Description 10Based-T/100Based-TX Ethernet Controller with 16/32 bit interface 10Based-T/100Based-TX Ethernet Controller with 16/32 bit interface
Ethernet Bandwidth 10Base-T/ 100Base-TX 10Base-T/ 100Base-TX
MAC Yes Yes
PHY Yes Yes
TX/RX RAM Buffer(Bytes) 8K 8K
Interrupt Pin 1 1
LEDs 2 2
Op. Voltage (V) 3.3 3.3
# Ethernet Ports 1 1
Temp. Range Min. (°C) -40 -40
Temp. Range Max. (°C) 85 85
Interface1 16 bit or 32 bit Host Bus 16 bit or 32 bit Host Bus
Vdd I/O (V) 3.3 3.3
Documents
LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC + PHY Data SheetData Sheets06/27/20111531KB
AN10.12 - Performance Analysis and Software Optimization on Systems Using the LAN91C111AppNote01/14/2004216KB
AN10.17 - Home Power Line Support for the LAN91C111AppNote01/23/20092223KB
AN10.7 - Parallel Crystal Circuit Input Voltage ControlAppNote11/12/2003134KB
AN11.2 - Current Measurements and Measurement Procedures for the LAN91C111 and LAN91C111 Evaluation BoardAppNote01/29/2009188KB
AN2157 - Transient Protection in Power Over Ethernet ApplicationsAppNote05/24/2016229KB
AN8.13 - Suggested MagneticsAppNote06/28/2011240KB
AN9.11 - Understanding the Chip ID and Revision RegistersAppNote08/07/2001110KB
AN9.6 - SMSC LAN91C111 32.16.8-Bit Three-In-One Fast Ethernet Controller Technical Reference ManualAppNote08/15/2008677KB
LAN91C111 IBIS ModelIBIS06/02/2003288KB
LAN91C111 VTQFP IBISIBIS02/22/2005276KB
LAN91C111i QFP IBIS modelIBIS02/16/2007268KB
LAN9000 Diagnostic and Setup Utilities (ETX, ISMC9000, MIIPHY, CIS and ENABLERSSoftware Library02/06/2014
LAN91C111 DOS ODI Driver Version 4.5Software Library02/06/2014
LAN91C111 Linux Driver Version 2.03 SourceSoftware Library02/06/2014
LAN91C111 Packet Driver Version 1.2CSoftware Library02/06/2014
LAN91C111 VxWorks Driver Version 2.1Software Library02/06/2014
LAN91C111 Windows 98 Driver Version 3.12BSoftware Library02/06/2014
LAN91C111 Windows CE Driver 5.04/4.x for X86Software Library02/06/2014
LAN91C111 Windows CE Driver Version 3.0Software Library02/06/2014
LAN91C111 Windows XP Embedded Driver Version 5.1.1.0Software Library02/06/2014
SRC-111-CENET Source CodeSoftware Library02/06/2014
SRC-111-CENET86 Source CodeSoftware Library02/06/2014
SRC-111-CENETXS Source CodeSoftware Library02/06/2014
SRC-111-NDIS Source CodeSoftware Library02/06/2014
SRC-111-ODI Source CodeSoftware Library02/06/2014
SRC-111-PKT Source CodeSoftware Library02/06/2014
SRC-111-VX Source CodeSoftware Library02/06/2014
SRC-111-XP Source CodeSoftware Library02/06/2014
LAN91C111 128-pin QFP Package Component Placement ChecklistDesign Checklist06/14/2004215KB
LAN91C111 128-pin QFP Package Routing ChecklistDesign Checklist11/06/2003202KB
LAN91C111 128-pin TQFP Package Component Placement ChecklistDesign Checklist06/24/2003215KB
LAN91C111 128-pin TQFP Package Routing ChecklistDesign Checklist08/07/2003202KB
LAN91C111 QFP Rev D Schematic ChecklistDesign Checklist02/16/200763KB
LAN91C111 TQFP Rev E Schematic ChecklistDesign Checklist04/20/200563KB
LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC + PHY Data BriefProduct Briefs06/27/2011197KB
LAN91C111 Reference Design BOMSchematics04/19/200722KB
LAN91C111 Reference Design Jumper ListSchematics11/01/2004406KB
LAN91C111 Reference Design SchematicSchematics04/26/200764KB
Ordering Information
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
LAN91C111I-NS128QFP-40C to +85CTRAY26.9122.4320.3919.6919.47
LAN91C111I-NU128TQFP-40C to +85CTRAY25.0220.8518.9518.3118.10
LAN91C111-NS128QFP0C to +70CTRAY24.7520.6318.7518.1117.91
LAN91C111-NU128TQFP0C to +70CTRAY22.8719.0617.3316.7416.55
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RoHS Information
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
LAN91C111-NS1.8064006.803030128QFP14x20x2.7Matte Tine3
LAN91C111I-NS1.8064006.803030128QFP14x20x2.7Matte Tine3
LAN91C111-NS-A001.8064006.803030128QFP14x20x2.7Matte Tine3
LAN91C111-NU0.5575002.888889128TQFP14x14x1mmMatte Tine3
LAN91C111I-NU0.5575002.888889128TQFP14x14x1mmMatte Tine3
LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC + PHY Data Sheet LAN91C111
AN10.12 LAN91C111
AN10.17 LAN91C111
AN10.7 LAN91C111
AN11.2 LAN91C111
AN2157 LAN9353
AN8.13 LAN9354
AN9.11 LAN91C96
AN9.6 LAN91C111
LAN91C111 128-pin QFP Package Component Placement Checklist LAN91C111
LAN91C111 128-pin QFP Package Routing Checklist LAN91C111
LAN91C111 128-pin TQFP Package Component Placement Checklist LAN91C111
LAN91C111 128-pin TQFP Package Routing Checklist LAN91C111
LAN91C111 QFP Rev D Schematic Checklist LAN91C111
LAN91C111 TQFP Rev E Schematic Checklist LAN91C111
LAN91C111 10/100 Non-PCI Ethernet Single Chip MAC + PHY Data Brief LAN91C111
LAN91C111 Reference Design BOM LAN91C111
LAN91C111 Reference Design Jumper List LAN91C111
LAN91C111 Reference Design Schematic LAN91C111
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