home products Semiconductors Ethernet & PoE Ethernet Controllers LAN9250 - 10/100 Base-T/TX Ethernet Controller with 8/16 Bit/SPI/SQI Interface
LAN9250 - 10/100 Base-T/TX Ethernet Controller with 8/16 Bit/SPI/SQI Interface
Microchip
LAN9250

LAN9250 - 10/100 Base-T/TX Ethernet Controller with 8/16 Bit/SPI/SQI Interface

Manufacturer: Microchip

Datasheet: LAN9250

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Delivers to Europe.

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Product Detail

Status: In Production
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 LANCheck online design review service is subject to Microchip's Program Terms and Conditions and requires a myMicrochip account.

LAN9250 - 10/100 Base-T/TX Ethernet Controller with 8/16 Bit/SPI/SQI Interface
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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.

LAN9250
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LAN9250
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Technical Specification

Ethernet Bandwidth:
10/100Mbps
Interface:
8/16-bit Host Bus or SPI
PHY:
Yes
TX/RX RAM Buffer(Bytes):
16k
Status:
In Production
MAC:
Yes
Automotive Grade:
No
Fiber Support:
Yes
Interrupt Pin:
1
IEEE 1588:
Yes
WOL:
Yes
EEE:
Yes
LEDs:
3
Cable Diag:
Yes
Op. Voltage (V):
0
Vdd I/O (V):
1.8/2.5/3.3
Temp Range Min. (°C):
-40
Temp Range Max. (°C):
105
Packages:
64/QFN, 64/TQFP

Manufacturer

Microchip

Microchip Technology Inc. develops and manufactures semiconductor products for various embedded control applications worldwide. Its portfolio comprises 8- and 16-bit pic microcontrollers and 16-bit dspic digital signal controllers, which feature onboard flash (reprogrammable) memory technology; and linear, mixed-signal, power management, thermal management, battery management, and interface devices.

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