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  Microchip Technology Semiconductor Electronic Components Datasheet  

LAN9250 Datasheet

10/100 Industrial Ethernet Controller & PHY

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LAN9250
10/100 Industrial Ethernet Controller & PHY
Highlights
• 16-bit 10/100 industrial Ethernet controller & PHY
• Interfaces to most 8/16-bit embedded controllers
and 32-bit embedded controllers with an 8/16-bit
bus
• 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
Target Applications
• Cable, satellite, and IP set-top boxes
• Digital televisions & video recorders
• VoIP/Video phone systems
• Home gateways
• Test/Measurement equipment
• Industrial automation systems
Key Benefits
• Single-chip Ethernet controller
- Fully compliant with IEEE 802.3/802.3u standards
- Integrated Ethernet MAC and PHY
- 10BASE-T and 100BASE-TX support
- 100BASE-FX support for external fiber transceiver
- Automatic polarity detection and correction
(HP Auto-MDIX)
- Full- and Half-duplex support
- Full-duplex flow control
- Backpressure for half-duplex flow control
- Preamble generation and removal
- Automatic 32-bit CRC generation and checking
- Automatic payload padding and pad removal
- Loop-back modes
• Eliminates dropped packets
- Internal buffer memory can store over 200 packets
- Automatic PAUSE and back-pressure flow control
• Flexible address filtering modes
- One 48-bit perfect address
- 64 hash-filtered multicast addresses
- Pass all multicast
- Promiscuous mode
- Inverse filtering
- Pass all incoming with status report
- Disable reception of broadcast packets
• 8/16-Bit Host Bus Interface
- Indexed register or multiplexed bus
- 16Kbyte FIFO with flexible TX/RX allocation
- SPI / Quad SPI support
• IEEE 1588v2 hardware time stamp unit
- Global 64-bit tunable clock
- Ordinary clock: master / slave, one-step / two-step, end-
to-end / peer-to-peer delay
- Fully programmable timestamp on TX or RX,
timestamp on GPIO
- 64-bit timer comparator event generation (GPIO or IRQ)
• Comprehensive power management features
- 3 power-down levels
- Wake on link status change (energy detect)
- Magic packet wakeup, Wake on LAN (WoL), wake on
broadcast, wake on perfect DA
- Wakeup indicator event signal
- Link status change
• Power and I/O
- Integrated power-on reset circuit
- Latch-up performance exceeds 150mA
per EIA/JESD78, Class II
- JEDEC Class 3A ESD performance
- Single 3.3V power supply
(integrated 1.2V regulator)
• Additional Features
- Multifunction GPIOs
- General purpose timer
- Optional EEPROM interface
- Ability to use low cost 25MHz crystal for reduced BOM
• Packaging
- Pb-free RoHS compliant 64-pin QFN or 64-pin TQFP-
EP
• Available in commercial, industrial, and extended
industrial* temp. ranges
*Extended temp. (105ºC) is supported only in the 64-QFN with an
external voltage regulator (internal regulator must be disabled) and
2.5V (typ) Ethernet magnetics.
2015 Microchip Technology Inc.
DS00001913A-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

LAN9250 Datasheet

10/100 Industrial Ethernet Controller & PHY

No Preview Available !

LAN9250
TO OUR VALUED CUSTOMERS
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products. To this end, we will continue to improve our publications to better suit your needs. Our publications will be refined and
enhanced as new volumes and updates are introduced.
If you have any questions or comments regarding this publication, please contact the Marketing Communications Department via
E-mail at docerrors@microchip.com. We welcome your feedback.
Most Current Documentation
To obtain the most up-to-date version of this documentation, please register at our Worldwide Web site at:
http://www.microchip.com
You can determine the version of a data sheet by examining its literature number found on the bottom outside corner of any page.
The last character of the literature number is the version number, (e.g., DS30000000A is version A of document DS30000000).
Errata
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rent devices. As device/documentation issues become known to us, we will publish an errata sheet. The errata will specify the
revision of silicon and revision of document to which it applies.
To determine if an errata sheet exists for a particular device, please check with one of the following:
• Microchip’s Worldwide Web site; http://www.microchip.com
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DS00001913A-page 2
2015 Microchip Technology Inc.


Part Number LAN9250
Description 10/100 Industrial Ethernet Controller & PHY
Maker Microchip
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