LAN9250T/PT - 10/100 Ethernet Controller | Microchip
MPN: LAN9250T/PT ✓ Hoạt độngLAN9250T/PT Tóm tắt
An Ethernet controller is an interface IC that connects an embedded processor or programmable controller to a physical Ethernet network. The LAN9250 combines the Media Access Controller, which manages frame transmission and reception, with the physical-layer transceiver required to connect to a 10/100 Base-T network. This integration places the device within the embedded networking interface IC category and reduces external circuitry compared with a discrete MAC and PHY implementation.
Key features include support for 10/100 Base-T/TX networking, an 8-bit or 16-bit SPI/SQI host interface, I2C configuration support, jumbo-frame handling, hardware packet filtering, and Wake-on-LAN. The I2C and SPI interfaces support embedded processor integration, while packet filtering helps the host ignore unnecessary traffic. Wake-on-LAN allows a connected system to respond to designated network wake events when otherwise inactive.
The LAN9250 uses separate parallel host and serial host-interface options to accommodate different embedded architectures. Its integrated MAC and PHY organization allows the system processor to concentrate on application processing rather than low-level Ethernet framing and line signaling. The available verified material identifies the device as a full-featured single-chip controller intended to balance integration flexibility, performance, ease of implementation, and system cost.
Typical applications include industrial Ethernet gateways, embedded control systems, test and measurement equipment, communications equipment, and networked microcontroller platforms. An industrial gateway benefits from the integrated 10/100 Ethernet interface, while an embedded controller can use the serial host interface and packet filtering to manage traffic efficiently. The same integration can simplify Wake-on-LAN-enabled remote equipment.
PCB design should preserve the exposed-pad thermal and electrical requirements of the 64-pin TQFP package and follow the manufacturer's recommended power, clock, interface, and Ethernet-line layouts. Designers should confirm the complete pin assignments and reference design from the manufacturer datasheet before release because the supplied search results do not expose an authoritative pin table.
This page consolidates verified distributor pricing, package and interface details, drop-in replacement evidence, application guidance, and design cautions into one engineering-focused reference. It distinguishes confirmed facts from parameters that require confirmation directly from the Microchip LAN9250 datasheet.
Bộ thay thế dễ dàng lắp đặt cho LAN9250T/PT — 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/PT (cùng hình factor và footprint) — khác nhau ở Ethernet Speed, Package, Product Type.
LAN9250/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →LAN9250T/PT Thông số kỹ thuật
| Product Type | 10/100 Base-T/TX Ethernet Controller |
| Integrated Functions | MAC and PHY |
| Ethernet Speed | 10/100 Base-T |
| Host Interface | I2C, SPI |
| Serial Host Interface | 8-bit/16-bit SPI/SQI |
| Jumbo Frame Support | Supported |
| Packet Filtering | Supported |
| Wake-on-LAN | Supported |
| Hộp | 64-TQFP-EP (10 mm x 10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Supplier Availability Signal | Shown in stock and shipping by DigiKey as of 2026-10-29 |
| Verified Unit Price | 8.385 USD as of 2026-10-29 |
Hướng dẫn cấu hình chân LAN9250T/PT 64-tqfp-ep (10 mm x 10 mm)
Cấu hình chân cho LAN9250T/PT (64-tqfp-ep (10 mm x 10 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/PT.
Tham khảo: tài liệu kỹ thuật cho cấu hình chân đầy đủ.
Ứng dụng tiêu biểu
LAN9250T/PT phù hợp cho 6 Áp dụngs: Industrial Ethernet Gateway, Networked Microcontroller Controller, Test and Measurement Ethernet Interface, Communication Equipment, Wake-on-LAN Remote Equipment, Embedded Data Acquisition System.
Industrial Ethernet Gateway
The LAN9250T/PT fits an industrial Ethernet gateway because it combines the 10/100 Base-T MAC and PHY in one 64-pin TQFP-EP device. The host processor can use the I2C or SPI/SQI interface while the controller handles Ethernet framing and physical-layer signaling. Packet filtering reduces unnecessary traffic presented to the embedded processor, and jumbo-frame support can improve throughput for larger payloads. The verified distributor data confirms the controller and package but does not provide operating-temperature limits, so industrial temperature-range suitability must be confirmed from the manufacturer ordering information before deployment.
Được đề xuất
Networked Microcontroller Controller
The LAN9250T/PT is suitable for a networked embedded controller requiring a compact Ethernet connection without separate MAC and PHY components. Its 8-bit or 16-bit SPI/SQI host interface supports processors that favor serial communication, while I2C provides an additional control path. The single-chip approach simplifies firmware and PCB integration compared with a discrete network interface. Jumbo-frame support and packet filtering help match Ethernet behavior to the host workload, although the final interrupt, descriptor, and buffer configuration must follow the Microchip datasheet.
Được đề xuất
Test and Measurement Ethernet Interface
The LAN9250T/PT can add 10/100 Base-T connectivity to test and measurement equipment where remote control and data transfer are required. Integrating the MAC and PHY reduces the number of network interface components, while SPI/SQI permits a deterministic host connection to an FPGA or embedded controller. Packet filtering can suppress irrelevant traffic in multi-instrument environments, and jumbo frames may benefit bulk result transfers. The engineering trade-off is that the verified 64-pin exposed-pad package requires careful thermal design and exact layout compliance with the manufacturer reference circuit.
Được đề xuất
Communication Equipment
The LAN9250T/PT is appropriate for embedded communications equipment requiring a compact 10/100 Ethernet connection and flexible host-controller support. I2C and SPI/SQI allow the network interface to be paired with processors selected for control, protocol processing, or real-time requirements. Packet filtering is useful in equipment that receives traffic from multiple endpoints, and Wake-on-LAN supports remote maintenance and power-management workflows. The available verified data confirms these features but does not state latency, cable-length, or EMC limits, so those characteristics require direct datasheet review.
Được đề xuất
Wake-on-LAN Remote Equipment
The LAN9250T/PT supports Wake-on-LAN functionality, making it relevant to remote equipment that must remain connected but wake or respond to designated network events. The integrated PHY and MAC provide the complete 10/100 interface needed at the board level, while the serial host interface allows the system controller to manage power states. Designers should define packet filters so normal background traffic does not prevent low-power operation. The supplied evidence confirms Wake-on-LAN support but does not provide wake thresholds, current consumption, or timing values.
Được đề xuất
Embedded Data Acquisition System
The LAN9250T/PT can provide a 10/100 Base-T network path for embedded data-acquisition systems that need centralized monitoring or remote access. Its integrated MAC and PHY reduce external interface complexity, while the 8-bit or 16-bit SPI/SQI option supports high-speed host transfers. Jumbo-frame support can lower protocol overhead when transferring large sampled datasets, and packet filtering can restrict traffic to recognized equipment addresses. The choice must account for thermal dissipation through the exposed pad and the manufacturer's recommended Ethernet magnetics and layout implementation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho LAN9250T/PT — 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 | LAN9250/PT |
|---|---|---|
| Package | 64-TQFP-EP (10 mm x 10 mm) | 64-TQFP-EP (10 mm x 10 mm) |
| Brand | Microchip Technology | Microchip Technology |
| Product Type | 10/100 Base-T/TX Ethernet Controller | 10/100 Base-T/TX Ethernet Controller |
| Integrated Functions | MAC and PHY | MAC and PHY |
| Host Interface | I2C, SPI | I2C, SPI |
| Ethernet Speed | 10/100 Base-T | 10/100 Base-T |
Bảo phân biệt quan trọng
- Integrated Ethernet controller and PHY (vsLAN9250/PT)
- Flexible embedded host connectivity (vsLAN9250/PT)
- Network traffic-management features (vsLAN9250/PT)
Ghi chú thiết kế
Follow the Microchip LAN9250 reference layout for the 64-pin TQFP exposed-pad package, including thermal-pad connection, via arrangement, power-plane geometry, and high-speed Ethernet traces. Keep the controller, its supporting passive network, and the required magnetics in the same signal path specified by the manufacturer. The supplied excerpts do not provide the complete pin table or PCB stack-up, so fabrication details must be taken directly from the official datasheet and reference design.
Treat the exposed thermal pad as both an electrical connection and a heat-spreading feature. Use the package land pattern and thermal-via arrangement specified by Microchip, and verify junction-temperature limits under the maximum expected ambient temperature and Ethernet activity. Because the verified results do not disclose thermal resistance or operating-temperature limits, neither value is estimated here; obtain them from the datasheet before conducting a thermal sign-off.
Route the SPI/SQI, I2C, clock, and interrupt signals according to the host-interface timing and layout guidance in the manufacturer datasheet. Pay particular attention to clock source placement, return paths, and trace-length relationships identified for the selected operating mode. Avoid adding long stubs or splitting power planes beneath high-speed signals, and validate the final interface with an appropriate signal-integrity or functional test.
Do not substitute the LAN9250/PT solely from its distributor description without checking the complete ordering table, device revision, temperature grade, and exposed-pad implementation. The verified excerpts establish the same package and major interfaces but do not expose every ordering suffix difference. Also verify the required Ethernet magnetics, termination, clock, supply, and decoupling values directly from the Microchip datasheet before releasing a new PCB.
Thông tin tuân thủ
The supplied verified web results do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. These fields remain unknown rather than being inferred from the manufacturer or package.
