LAN9250TI/PT - 10/100 Ethernet Controller | Microchip
MPN: LAN9250TI/PT ✓ פעילLAN9250TI/PT סקירה
An Ethernet controller is an interface integrated circuit that connects an embedded processor or microcontroller to a physical Ethernet network. The LAN9250 family combines a 10/100 Ethernet media-access controller, integrated transceiver, and host interface in one device. This consolidated architecture reduces external interface components, simplifies firmware integration, and supports cost-conscious embedded products where network connectivity is required.
The LAN9250TI/PT supports 10 Mbps and 100 Mbps Ethernet operation and offers both I2C and SPI connectivity to its host. Its selectable 1.8 V, 2.5 V, and 3.3 V operating voltages allow integration with systems using multiple logic levels. The tape-and-reel ordering suffix identifies the production packaging, while the 64-TQFP exposed-pad construction provides a defined thermal and electrical connection through its center pad.
The integrated Ethernet controller and PHY provide a compact hardware foundation for network-enabled embedded equipment. Designers can use the I2C interface when the host system favors a low-pin-count bus, or select SPI where higher transfer throughput or simpler firmware transaction handling is preferable. Configuration straps and internal registers support integration with a broader range of processor architectures rather than coupling the controller to one specific host family.
Typical applications include industrial Ethernet equipment, factory automation controllers, embedded gateways, serial-to-Ethernet products, data acquisition systems, and networked sensors. The device is particularly suitable for compact embedded platforms that need 10/100 Ethernet without adding a discrete PHY. A 100BASE-FX-oriented variant is not implied by this ordering code; the identified LAN9250TI/PT supports copper Ethernet through its 10BASE-T and 100BASE-TX interfaces.
PCB design should account for the exposed pad, high-speed differential pairs, magnetics, and the manufacturer’s recommended layout. Keep the Ethernet traces short, provide the specified decoupling, and follow the pin-description and layout guidance in the Microchip Technology datasheet. The exposed-pad connection also affects solder assembly and thermal performance, so its land pattern and paste volume should follow the package drawing.
This product page organizes the LAN9250TI/PT electrical identity, package information, sourcing fields, and engineering guidance into one reference. It also distinguishes confirmed technical attributes from parameters that require confirmation in the full manufacturer datasheet, helping engineers plan board-level integration, interface selection, and production sourcing more efficiently.
חלופות תחליף ישיר עבור LAN9250TI/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם LAN9250TI/PT (אותו גורם צורה וטביעת רגל) — שונים ב Host Interface, Package, Product Type.
אין חלופות תואמות Drop-in עבור מוצר זה.
בקשת חלופותLAN9250TI/PT מפרטים
| Product Type | Single-chip 10/100 Ethernet controller |
| Ethernet Speed | 10 Mbps and 100 Mbps |
| Physical Layer Support | 10BASE-T and 100BASE-TX PHY |
| Host Interface | I2C and SPI |
| Supply Voltage Options | 1.8 V, 2.5 V, and 3.3 V |
| מארז | 64-pin TQFP with exposed pad |
| Package Dimensions | 10 mm x 10 mm |
| סוג הרכבה | Surface mount |
| Packaging | Tape and reel |
| טמפרטורת פעולה | -40°C to +85°C |
| Minimum Order Quantity | 1,200 units |
| Reel Quantity | 1,200 units |
| Manufacturer Lead Time | 8 weeks |
| Product Series | LAN9250 |
| Application Class | Embedded 10/100 industrial Ethernet |
מדריך תצורת פינים של LAN9250TI/PT 10 mm x 10 mm
תצורת פינים עבור LAN9250TI/PT (מארזת 10 mm x 10 mm). מספרי פינים, פונקציות ותרשימי חיבורים מוגדרים ב-Datasheet של היצרן. יש לעיין בו לקבלת ה-footprint המדויק והנחיות הלחמה.
אין נתוני פריסת פינים מפורטים עבור LAN9250TI/PT.
עיינו ב- גיליון נתונים עבור תצורת פינים מלאה.
יישומים טיפוסיים
LAN9250TI/PT מתאים עבור 6 יישוםs: Industrial Ethernet Gateway, Factory Automation Controller, Data Acquisition System, Networked Sensor Node, Serial-to-Ethernet Product, Embedded Test and Measurement Instrument.
Industrial Ethernet Gateway
The LAN9250TI/PT fits an industrial Ethernet gateway that must bridge a low-power embedded controller to a 10/100 network. Its integrated 10BASE-T and 100BASE-TX PHY eliminates a separate copper-network interface, while I2C and SPI host connectivity allows the designer to match the gateway processor’s available peripheral. The 1.8 V, 2.5 V, and 3.3 V operating options support mixed-voltage industrial logic. The trade-off is that the 64-pin TQFP exposed-pad package requires careful high-speed layout and a properly designed Ethernet magnetics and power network.
מומלץ
Factory Automation Controller
The LAN9250TI/PT can add wired networking to a factory automation controller without requiring a separate Ethernet MAC and PHY in the design. A host processor can use SPI for efficient register and packet-buffer access, or I2C where pin availability is more important. Supporting both 10 Mbps and 100 Mbps provides flexibility for plant-network segmentation. Designers should budget board area for the 10 mm by 10 mm TQFP, magnetics, isolation requirements, and exposed-pad thermal design while maintaining the manufacturer’s recommended Ethernet trace geometry.
מומלץ
Data Acquisition System
The LAN9250TI/PT is suitable for a distributed data-acquisition system that must move measurement or control records over 10/100 Ethernet. Its integrated PHY shortens the signal path between the controller and copper Ethernet interface, and the selectable host supply voltages simplify integration with processors operating at different logic levels. The controller supports I2C and SPI, allowing firmware architecture to follow the acquisition platform. Designers should evaluate packet throughput, interrupt latency, driver support, and environmental requirements rather than treating Ethernet speed alone as sufficient.
מומלץ
Networked Sensor Node
The LAN9250TI/PT can give a compact sensor node a standard 10/100 Ethernet connection for configuration, telemetry, and remote monitoring. I2C is useful when the sensor node has limited host pins, while SPI may suit a higher-throughput embedded controller. Supporting 1.8 V, 2.5 V, and 3.3 V helps accommodate low-voltage sensor platforms, but the complete power tree must be checked against the Ethernet controller’s operating conditions. Ethernet magnetics, surge protection, thermal management, and grounded enclosure strategy remain essential for dependable industrial deployment.
מומלץ
Serial-to-Ethernet Product
The LAN9250TI/PT is appropriate for a serial-to-Ethernet product that converts a legacy serial stream into a 10/100 network connection. The embedded host can use SPI or I2C to exchange Ethernet frames and status information, while the integrated PHY simplifies the copper interface compared with a discrete implementation. This architecture can support industrial gateways, point-of-sale systems, and service equipment. The design must account for host throughput, protocol latency, packet buffering, watchdog behavior, and the exposed pad’s contribution to package thermal performance.
מומלץ
Embedded Test and Measurement Instrument
The LAN9250TI/PT can provide wired data transfer in an embedded test and measurement instrument that needs standard 10/100 Ethernet connectivity. The integrated controller and PHY reduce the number of external network-interface components, while SPI can provide a practical host path for continuous instrument-data transfer. The selectable operating voltages support processor and logic-level integration. For laboratory and production equipment, validate electromagnetic compatibility, grounding, isolation, enclosure behavior, and sustained data throughput rather than relying only on nominal 100 Mbps line rate.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור LAN9250TI/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה |
|---|---|
| Product Type | Single-chip 10/100 Ethernet controller |
| Brand | Microchip Technology |
| Package | 64-pin TQFP with exposed pad, 10 mm x 10 mm |
| Ethernet Speed | 10 Mbps and 100 Mbps |
| Physical Layer | Integrated 10BASE-T and 100BASE-TX PHY |
| Host Interface | I2C and SPI |
| Operating Voltage | 1.8 V, 2.5 V, or 3.3 V |
| Operating Temperature | -40°C to +85°C |
| Mounting Type | Surface mount |
| Order Packaging | Tape and reel |
הערות תכנון
Follow the Ethernet differential-pair geometry and component-placement guidance in the Microchip Technology LAN9250 datasheet. Maintain a continuous ground reference beneath and around the interface, avoid splitting the ground plane beneath the device, and minimize stubs between the controller and Ethernet magnetics. The 64-pin TQFP exposed pad must be connected according to the package drawing, with a paste pattern designed to meet both electrical and thermal requirements.
Use the manufacturer’s recommended input and internal supply capacitance and confirm the required voltage for every power-domain connection. The LAN9250TI/PT supports 1.8 V, 2.5 V, and 3.3 V operation, but that does not mean every supply rail can be connected simultaneously. Assign each domain from the device pin definitions, verify sequencing and current limits in the datasheet, and keep switching-converter and Ethernet-magnetics supply noise away from sensitive host interfaces.
Do not treat the TI/PT ordering suffix as permission to change package or temperature grade without reviewing the exact orderable part number. Also avoid assuming that another Ethernet controller with the same 10/100 speed is interchangeable: PHY integration, host interface, configuration straps, register map, driver support, and exposed-pad layout can differ. For any proposed substitution, compare the complete pin table, electrical limits, and clocking requirements before releasing a PCB revision.
The exposed thermal pad is part of both the package footprint and its heat-transfer path. Connect it to the specified ground or pad arrangement, use the manufacturer’s land pattern, and provide adequate copper without compromising Ethernet trace geometry. Check worst-case supply dissipation, ambient temperature, and solder-joint conditions with the datasheet thermal information. In a sealed industrial enclosure, include the power consumed by magnetics and associated regulators when validating internal temperature rise.
מידע על תאימות
The product listing identifies the LAN9250TI/PT as a Microchip Technology industrial Ethernet controller with a -40°C to +85°C operating-temperature range, but it does not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Request current compliance documentation before qualification.
