LAN9250T/ML - 10/100 Ethernet Controller | Microchip Technology
MPN: LAN9250T/ML ✓ Hoạt độngLAN9250T/ML Tóm tắt
An Ethernet controller is an interface IC that manages communication between an embedded processor and a physical Ethernet network. Within the product hierarchy, the LAN9250 combines an Ethernet MAC, a 10/100 Base-T/TX PHY, host-interface logic, and network-related control functions. The verified product information identifies support for optical-fiber links, IEEE 1588, low-power operation, wake-up, power-on reset, and programmable LED indication.
The device supports a 10/100 Base-T/TX Ethernet connection and offers I2C, SPI, and parallel host-interface options described by the manufacturer as 8/16-bit or SPI/SQI. This interface flexibility allows the same controller family to be used with embedded processors, microcontrollers, DSPs, and other systems with different bus requirements. Its 64-QFN 9 x 9 mm package supports compact surface-mount integration, although detailed footprint dimensions and exposed-pad requirements must be taken from the manufacturer documentation.
Typical implementation uses the controller as the network interface between a host processor and an Ethernet transformer or optical-fiber interface. Digital firmware and drivers connect the selected host bus to the Ethernet MAC, while the integrated PHY handles the physical signaling layer. The low-power mode and wake-up functions can help a system reduce energy use or resume network operation according to product-specific requirements. Programmable LED indication provides a hardware indication of link or activity status.
Because the LAN9250T/ML integrates the MAC and PHY, board planning must address host-bus timing, clocking, power sequencing, magnetic-interface components, controlled-impedance routing, and the exact exposed-pad land pattern. The manufacturer datasheet and its associated errata should be consulted before schematic release. Verification should include operating-voltage limits, transceiver or media-interface implementation, reset behavior, wake-up operation, IEEE 1588 support, and environmental qualification.
This page consolidates the verified manufacturer and distributor information for the LAN9250T/ML, including the 10/100 Ethernet capability, available interfaces, 64-QFN package information, feature list, sourcing links, and practical selection considerations. Detailed electrical limits, timing tables, absolute maximum ratings, pin functions, and package dimensions that were not exposed by the supplied records are intentionally identified as data-needed rather than inferred.
Bộ thay thế dễ dàng lắp đặt cho LAN9250T/ML — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với LAN9250T/ML (cùng hình factor và footprint) — khác nhau ở Product Type, Package, Ethernet Speed, Host Interface.
LAN9250V/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →LAN9250TI/ML
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
LAN9250T/ML Thông số kỹ thuật
| Product Type | 10/100 Base-T/TX Ethernet controller |
| Ethernet Speed | 10/100 Mb/s |
| Integrated PHY | Yes, 10/100 Base-T/TX PHY |
| Host Interface Options | 8/16-bit, SPI, or SQI |
| DigiKey Interface Description | I2C and SPI |
| Hộp | 64-QFN, 9 x 9 mm |
| Kiểu lắp đặt | Surface mount |
| Optical Fiber Support | Supported |
| Time Synchronization | IEEE 1588 |
| Power Management | Low-power mode |
| Wake-Up Function | Supported |
| Power-On Reset | Supported |
| LED Indication | Programmable |
Hướng dẫn cấu hình chân LAN9250T/ML 64-qfn, 9 x 9 mm
Cấu hình chân cho LAN9250T/ML (64-qfn, 9 x 9 mm gói). Số thứ tự chân, chức năng và sơ đồ kết nối được xác định trong tài liệu thông số kỹ thuật của nhà sản xuất. Tham khảo nó để biết footprint và hướng dẫn hàn chính xác.
Không có dữ liệu chân cụ thể sẵn có cho LAN9250T/ML.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LAN9250T/ML phù hợp cho 6 Áp dụngs: Embedded Industrial Ethernet, Networked Sensors and IoT Gateways, Programmable Logic Controller, Precision Timing Network Node, Networked Audio and Video Equipment, Optical Network Equipment.
Embedded Industrial Ethernet
The LAN9250T/ML fits embedded industrial Ethernet equipment because it combines a 10/100 Base-T/TX controller and PHY with 8/16-bit, SPI, or SQI host connectivity in a 64-QFN 9 x 9 mm package. The verified feature set includes IEEE 1588 support, low-power operation, wake-up, reset, and programmable LED indication. A controller can sit between an industrial processor and an Ethernet transformer or approved optical interface. The design team should verify operating-temperature limits, timing, media-interface components, and driver support before release.
Được đề xuất
Networked Sensors and IoT Gateways
The LAN9250T/ML is suitable for a compact gateway that must convert local sensor or actuator data into 10/100 Ethernet traffic. Its selectable parallel, SPI, or SQI host interface allows integration with different embedded processors, while the integrated 10/100 Base-T/TX PHY reduces the external component count compared with a separated MAC and PHY design. Low-power mode and wake-up can support systems that are not continuously active. Firmware, clocking, reset behavior, and environmental ratings must be validated against the manufacturer documentation.
Được đề xuất
Programmable Logic Controller
The LAN9250T/ML can provide a dedicated 10/100 Ethernet endpoint for a programmable logic controller or compact automation controller. Its host interface choices allow the network subsystem to operate beside a real-time processor without requiring the processor to implement the Ethernet PHY itself. Programmable LED indication supports local link and activity diagnostics, while wake-up and low-power modes may assist duty-cycled operation. The implementation must confirm controller operating limits, bus timing, reset sequencing, and the required industrial qualification.
Được đề xuất
Precision Timing Network Node
The LAN9250T/ML is relevant to network equipment requiring IEEE 1588-related functionality because IEEE 1588 support is included in the verified feature set. The controller can serve a processor-based timing node with a 10/100 Ethernet connection and a host bus selected to match the processor architecture. Engineers should confirm the supported timing mode, timestamping accuracy, clock source, and interoperability profile in the manufacturer documentation. PCB implementation must preserve clock and Ethernet signal integrity.
Được đề xuất
Networked Audio and Video Equipment
The LAN9250T/ML can act as the management or control network interface in professional audio, video, and test equipment that also uses Ethernet for synchronization or configuration. Its 10/100 Mb/s performance is suitable for control traffic and device management, while the integrated PHY reduces board space in space-constrained 64-QFN designs. The low-power and wake-up features can assist standby behavior. Exact host throughput, buffering, interrupt behavior, and media-interface implementation should be verified before selecting it for a particular product architecture.
Được đề xuất
Optical Network Equipment
The LAN9250T/ML is a candidate for optical-network equipment because the verified LCSC listing explicitly identifies optical-fiber support alongside its 10/100 controller and PHY functions. A host processor can use the parallel, SPI, or SQI interface while the controller manages Ethernet traffic and programmable LED status indication. The design must still define the exact optical transceiver or media-conversion path, signal levels, timing budget, and isolation requirements. Confirm those details in the manufacturer datasheet because the supplied records do not specify a particular optical module interface.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LAN9250T/ML — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | LAN9250V/ML | LAN9250TI/ML |
|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) | 64-QFN (9 x 9 mm) |
| Ethernet Speed | 10/100 Mb/s | 10/100 Mb/s | 10/100 Mb/s |
| Integrated PHY | 10/100 Base-T/TX PHY | 10/100 Base-T/TX PHY | 10/100 Base-T/TX PHY |
Bảo phân biệt quan trọng
- Integrated 10/100 controller and PHY (vsLAN9250V/ML)
- Flexible embedded host connectivity (vsLAN9250TI/ML)
- Timing and power-management feature integration (vsLAN9250V/ML)
Ghi chú thiết kế
Create the footprint from the official LAN9250 64-QFN 9 x 9 mm package drawing rather than inferring it from the distributor title. Confirm pin numbering, pad dimensions, solder-mask clearance, and the exposed-pad geometry. Place decoupling capacitors close to their assigned supply pins and provide a low-impedance ground connection to the exposed pad. The supplied records establish the package size and pin count but do not expose the land pattern.
Separate Ethernet media signals from clocks, SPI or SQI activity, switching-power nodes, and sensitive analog inputs. Use the manufacturer reference layout for the selected external media interface, and verify return paths and reference planes continuously. If the board supports optical conversion, keep the optical-device differential path away from clocks and processor buses. Complete signal-integrity and impedance validation on the final stack-up.
The selected 8/16-bit, SPI, or SQI mode determines the host timing budget and clocking architecture. Validate setup and hold timing with the exact processor, cable, switching, and configuration used in production. Do not assume that the abbreviated interface descriptions establish identical timing across ordering codes. Review the manufacturer datasheet for required clock sources, reset sequencing, interrupt behavior, and supported bus configurations.
A common design mistake is treating a package-compatible LAN9250 ordering code as an automatic functional substitute. Before using LAN9250V/ML or LAN9250TI/ML, compare the ordering-code table, supply voltage, temperature grade, clock options, strap pins, and exposed-pad requirements. Also check the manufacturer errata because the datasheet notice states that minor operational differences and recommended workarounds may exist for current devices.
Plan the Ethernet controller supply rails with sufficient startup margin and account for the inrush and load behavior of any external magnetics or media interface. Use the manufacturer-recommended capacitance and ESR characteristics, and validate sequencing against the host processor. The supplied records do not expose operating or absolute-maximum voltage values, so those must be obtained from the official datasheet before the schematic or power tree is released.
Thông tin tuân thủ
The supplied manufacturer and distributor records do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. IEEE 1588 is identified as a supported feature, but that protocol reference is not a material-compliance declaration.
