LAN9250

The LAN9250 is a full-featured, single-chip 10/100 Ethernet controller designed for embedded applications where performance,flexibility, ease of integration and system cost control are required. The LAN9250 has been specifically designed to provide high performance and throughput for 16-bit applications. The LAN9250 complies with the IEEE802.3 (full/half-duplex 10BASE-T and 100BASE-TX) Ethernet protocol, IEEE 802.3az Energy Efficient Ethernet (EEE)(100Mbps only), and the IEEE 1588v2 precision time protocol. 100BASE-FX is supported via an external fiber transceiver.

The LAN9250 includes an integrated Ethernet MAC and PHY with a high-performance SRAM-like slave interface. For additional design flexibility SPI and SQI interfaces are also supported. The integrated checksum offload engines enable the automatic generation of the 16-bit checksum for received and transmitted Ethernet frames, offloading the task from the CPU. The LAN9250 also includes large transmit and receive data FIFOs to accommodate high latency applications. In addition, the LAN9250 memory buffer architecture allows highly efficient use of memory resources by optimizing packet granularity. The LAN9250 also supports features which reduce or eliminate packet loss. The internal 16-KByte SRAM can hold over 200 received packets. If the receive FIFO gets too full, the LAN9250 can automatically generate flow control packets to the remote node, or assert back-pressure on the remote node by generating network collisions.

The LAN9250 can be configured to operate via a single 3.3V supply utilizing an integrated 3.3V to 1.2V linear regulator.The linear regulator may be optionally disabled, allowing usage of a high efficiency external regulator for lower system power dissipation

Microchip's complimentary and confidential LANCheck® online design review services are available for customers who have selected our products for their application design-in*.

*The  is subject to Microchip's  and requires a myMicrochip account.

产品特性
  • 16-bit 10/100 industrial Ethernet controller & PHY
  • Interfaces to most 8/16-bit embedded controllers
  • Also 32-bit embedded controllers with an 8/16-bit bus
  • Also supports SPI/SQI
  • Integrated Ethernet PHY with HP Auto-MDIX
  • Integrated Ethernet MAC
  • Compliant with Energy Efficient Ethernet 802.3az
  • Wake on LAN (WoL) support
  • Integrated IEEE 1588v2 hardware time stamp unit
  • Cable diagnostic support
  • 1.8V to 3.3V variable voltage I/O
  • Integrated 1.2V regulator for single 3.3V operation
  • Low pin count and small body size package
技术参数
Parameter Name Value Value
Description 10/100 Industrial Ethernet Controller & PHY 10/100 Industrial Ethernet Controller & PHY
Ethernet Bandwidth 10BASE-T/100BASE-TX 10BASE-T/100BASE-TX
MAC Yes Yes
PHY Yes Yes
TX/RX RAM Buffer(Bytes) 16K 16K
Interrupt Pin 1 1
LEDs 3 3
Op. Voltage (V) 3.3 3.3
# Ethernet Ports 1 1
Temp. Range Min. (°C) -40 -40
Temp. Range Max. (°C) 105 105
Mixed Endian Yes Yes
Checksum Offload Yes Yes
Fiber Support Yes Yes
Interface1 8/16-Bit Host Bus Interface 8/16-Bit Host Bus Interface
Vdd I/O (V) 1.8/2.5/3.3 1.8/2.5/3.3
LinkMD Cable Diag Yes Yes
文档资料
LAN9250 10/100 Industrial Ethernet Controller & PHYData Sheets07/09/20152306KB
AN1900 - Transformerless Applications of Microchip's Ethernet Controller, Switch and EtherCAT ControllerAppNote06/24/2016325KB
AN2157 - Transient Protection in Power Over Ethernet ApplicationsAppNote05/24/2016229KB
AN8.13 - Suggested MagneticsAppNote06/28/2011240KB
EVB-LAN9250 BOMBOM11/05/201534KB
EVB-LAN9250 Gerber FilesGerber Files11/05/2015254KB
Routing Checklist LAN9250 SQFNProduct Document11/20/201540KB
EVB-LAN9250 Schematics , DSNSchematics11/05/20152669KB
EVB-LAN9250 Schemtics , PDFSchematics11/05/2015260KB
Schematic Checklist LAN9250 SQFNSchematics11/20/2015284KB
EVB-LAN9250 Evaluation Board User?s GuideUser Guides11/02/20152215KB
订购型号
Part NumberLeadsPackage TypeTemp RangePacking1+26+100+1000+5000+
LAN9250/ML64QFN0C to +70CTRAY5.824.854.414.083.87
LAN9250/PT64TQFP0C to +70CTRAY6.415.344.854.484.25
LAN9250I/ML64QFN-40C to +85CTRAY6.125.104.634.284.06
LAN9250I/PT64TQFP-40C to +85CTRAY6.735.615.104.714.47
LAN9250T/ML64QFN0C to +70CT/R5.924.934.484.143.93
LAN9250T/PT64TQFP0C to +70CT/R6.505.424.924.554.31
LAN9250TI/ML64QFN-40C to +85CT/R6.215.184.714.354.12
LAN9250TI/PT64TQFP-40C to +85CT/R6.825.695.174.784.53
LAN9250TV/ML64QFN-40C to +105CT/R7.206.005.455.044.78
LAN9250V/ML64QFN-40C to +105CTRAY7.115.925.384.974.72
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器件无铅环保信息
PartNumberDeviceWeightShippingWeightLeadCountPackageTypePackageWidthSolderCompositionJEDECIndicatorRoHSChinaEFUP
LAN9250/ML0.2324001.76923164QFN9x9x0.9mmMatte Tine3
LAN9250I/ML0.2324001.76923164QFN9x9x0.9mmMatte Tine3
LAN9250V/ML0.2324001.76923164QFN9x9x0.9mmMatte Tine3
LAN9250TV/ML0.2324000.37030364QFN9x9x0.9mmMatte Tine3
LAN9250T/ML0.2324000.37030364QFN9x9x0.9mmMatte Tine3
LAN9250TI/ML0.2324000.37030364QFN9x9x0.9mmMatte Tine3
LAN9250/PT0.2867000.00000064TQFP10x10x1.0mmMatte Tine3
LAN9250T/PT0.2867000.87500064TQFP10x10x1.0mmMatte Tine3
LAN9250I/PT0.2867000.00000064TQFP10x10x1.0mmMatte Tine3
LAN9250TI/PT0.2867000.87500064TQFP10x10x1.0mmMatte Tine3
LAN9250 10/100 Industrial Ethernet Controller & PHY LAN9250
AN1900 LAN9355
AN2157 LAN9353
AN8.13 LAN9355
EVB-LAN9250 Gerber Files EVB-LAN9250
Routing Checklist LAN9250 SQFN LAN9250
EVB-LAN9250 Schemtics , PDF EVB-LAN9250
Schematic Checklist LAN9250 SQFN LAN9250
EVB-LAN9250 Evaluation Board User?s Guide EVB-LAN9250
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