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
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Features- 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
| Parameter|
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
|
|
Documents
Ordering Information
| Part Number | Leads | Package Type | Temp Range | Packing | 1+ | 26+ | 100+ | 1000+ | 5000+ |
|---|
| LAN9250/ML | 64 | QFN | 0C to +70C | TRAY | 5.82 | 4.85 | 4.41 | 4.08 | 3.87 |
| LAN9250/PT | 64 | TQFP | 0C to +70C | TRAY | 6.41 | 5.34 | 4.85 | 4.48 | 4.25 |
| LAN9250I/ML | 64 | QFN | -40C to +85C | TRAY | 6.12 | 5.10 | 4.63 | 4.28 | 4.06 |
| LAN9250I/PT | 64 | TQFP | -40C to +85C | TRAY | 6.73 | 5.61 | 5.10 | 4.71 | 4.47 |
| LAN9250T/ML | 64 | QFN | 0C to +70C | T/R | 5.92 | 4.93 | 4.48 | 4.14 | 3.93 |
| LAN9250T/PT | 64 | TQFP | 0C to +70C | T/R | 6.50 | 5.42 | 4.92 | 4.55 | 4.31 |
| LAN9250TI/ML | 64 | QFN | -40C to +85C | T/R | 6.21 | 5.18 | 4.71 | 4.35 | 4.12 |
| LAN9250TI/PT | 64 | TQFP | -40C to +85C | T/R | 6.82 | 5.69 | 5.17 | 4.78 | 4.53 |
| LAN9250TV/ML | 64 | QFN | -40C to +105C | T/R | 7.20 | 6.00 | 5.45 | 5.04 | 4.78 |
| LAN9250V/ML | 64 | QFN | -40C to +105C | TRAY | 7.11 | 5.92 | 5.38 | 4.97 | 4.72 |
相关开发工具
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RoHS Information
| PartNumber | DeviceWeight | ShippingWeight | LeadCount | PackageType | PackageWidth | SolderComposition | JEDECIndicator | RoHS | ChinaEFUP |
|---|
| LAN9250/ML | 0.232400 | 1.769231 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 |  |  |
| LAN9250I/ML | 0.232400 | 1.769231 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 | | |
| LAN9250V/ML | 0.232400 | 1.769231 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 | | |
| LAN9250TV/ML | 0.232400 | 0.370303 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 | | |
| LAN9250T/ML | 0.232400 | 0.370303 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 | | |
| LAN9250TI/ML | 0.232400 | 0.370303 | 64 | QFN | 9x9x0.9mm | Matte Tin | e3 | | |
| LAN9250/PT | 0.286700 | 0.000000 | 64 | TQFP | 10x10x1.0mm | Matte Tin | e3 | | |
| LAN9250T/PT | 0.286700 | 0.875000 | 64 | TQFP | 10x10x1.0mm | Matte Tin | e3 | | |
| LAN9250I/PT | 0.286700 | 0.000000 | 64 | TQFP | 10x10x1.0mm | Matte Tin | e3 | | |
| LAN9250TI/PT | 0.286700 | 0.875000 | 64 | TQFP | 10x10x1.0mm | Matte Tin | e3 | | |
