DP83861VQM-3 - 10/100/1000 Ethernet PHY | Texas Instruments
MPN: DP83861VQM-3 ✗ پایان تولیدDP83861VQM-3 نمای کلی
An Ethernet physical-layer transceiver, commonly called an Ethernet PHY, converts between digital MAC-layer data and analog signaling on twisted-pair cabling. Within the Ethernet hierarchy, the PHY operates below the MAC controller and above the physical medium. Its supported 10BASE-T, 100BASE-TX, and 1000BASE-T capabilities allow one physical interface to cover 10 Mb/s, 100 Mb/s, and 1000 Mb/s Ethernet operation. The associated GMII and MII interfaces connect the transceiver to the digital networking controller.
The verified listing identifies the DP83861 as a full-featured Gigabit PHY that complies with IEEE 802.3u for 100BASE-TX and IEEE 802.3z/ab for 1000BASE-T Ethernet. It also identifies support for 10BASE-T operation. These protocol references establish the covered Ethernet generations, although individual timing, error, power, and link-performance limits are not present in the supplied source excerpts and are therefore marked for data confirmation rather than inferred.
Typical implementations place the DP83861VQM-3 beside a network transformer and RJ45 connector, then connect its GMII or MII interface to an Ethernet MAC controller or communications processor. The large 208-pin PQFP provides a substantial mixed-signal interface, making careful grounding, controlled return paths, and high-speed differential routing important. Designers should separate analog PHY and magnetics-side return currents from digital processor and memory domains while observing the package and layout guidance in the manufacturer documentation.
Applications include industrial Ethernet controllers, embedded gateways, network switches, test equipment, and communications modules requiring copper Ethernet connectivity. The part may also support migration paths from 10/100-Mb/s equipment to 1-Gb/s links when the complete PHY, transformer, connector, clocking, and firmware architecture can support the higher data rate. Automatic-negotiation details, supported media categories, cable reach, and media-access configuration must be confirmed in the manufacturer datasheet before final design release.
This page consolidates the supplied distributor listings, package information, protocol references, sourcing data, and engineering guidance into a structured component record. It distinguishes verified facts from parameters that remain unavailable in the supplied excerpts. Any replacement decision should be based on pin-level comparison, media support, electrical limits, clock requirements, firmware register compatibility, and PCB-level validation rather than package naming alone.
جایگزین‌های drop-in برای DP83861VQM-3 — همان پکیج، سازگار پین‌به‌پین. قطعات با پکیج متفاوت که نیاز به تغییر PCB دارند مستثنی هستند.
هیچ جایگزین مستقیمی برای این محصول موجود نیست.
درخواست جایگزینDP83861VQM-3 مشخصات
| Product Type | 10/100/1000M Ethernet physical-layer transceiver |
| Ethernet Speeds | 10 Mb/s, 100 Mb/s, and 1000 Mb/s |
| 10BASE-T Support | Supported |
| 100BASE-TX Support | Supported |
| 1000BASE-T Support | Supported |
| Protocol Compliance | IEEE 802.3u for 100BASE-TX and IEEE 802.3z/ab for 1000BASE-T Ethernet |
| PMD Integration | Integrated PMD sublayers |
| Digital Host Interface | GMII and MII |
| بسته‌بندی | 208-PQFP (28 mm x 28 mm) |
| Terminal Count | 208 terminals |
| Package Form | Gull-wing, square HFQFP |
| Temperature Grade | Commercial |
| Supply Type | Single Ethernet physical-layer transceiver |
| Listed Unit Price | $8.2827 as of 2026-10-29 |
راهنمای پیکربندی پین DP83861VQM-3 gull-wing, square hfqfp
پیکربندی پین برای DP83861VQM-3 (پکیج gull-wing, square hfqfp). شماره‌گذاری پایه‌ها، عملکردها و نمودارهای اتصال در دیتاشیت سازنده تعریف شده است. برای footprint دقیق و دستورالعمل‌های لحیم‌کاری به آن مراجعه کنید.
داده پین‌آوت تفصیلی موجود نیست برای DP83861VQM-3.
به دیتاشیت برای پیکربندی کامل پین‌ها.
کاربردهای معمول
DP83861VQM-3 مناسب است برای 6 کاربردs: Industrial Ethernet Controller, Embedded Network Gateway, Network Switch Port, Test and Measurement Equipment, Communications Module, Industrial Automation Controller.
Industrial Ethernet Controller
The DP83861VQM-3 fits an industrial embedded controller that requires 10, 100, and 1000 Mb/s copper Ethernet support. Its verified 10BASE-T, 100BASE-TX, and 1000BASE-T capability allows one PHY to cover several Ethernet link rates, while GMII and MII interfaces connect it to a communications controller. The 208-PQFP footprint requires careful mixed-signal routing, but it supports systems where a larger package and established thermal land pattern are acceptable. Industrial availability and temperature limits must be confirmed before qualification.
پیشنهادی
Embedded Network Gateway
DP83861VQM-3 is appropriate for an embedded network gateway that bridges a processor-based control system to a 1-Gb/s Ethernet uplink. The device's GMII or MII host interface provides a defined connection to digital network logic, while the integrated PMD sublayers and three copper-media rates support adaptable field-network deployments. Designers should reserve continuous ground under the mixed-signal package, isolate analog and digital return currents, and implement the manufacturer's transformer-side layout. Firmware and automatic-negotiation behavior require datasheet confirmation.
پیشنهادی
Network Switch Port
The DP83861VQM-3 can serve a copper network port in a switching or aggregation platform requiring 10/100/1000M media support. Its verified support for 10BASE-T, 100BASE-TX, and 1000BASE-T provides backward compatibility across link speeds, and the GMII/MII interface permits connection to switch silicon. The large 208-PQFP package consumes substantial board area but offers many external terminals for the mixed-signal PHY. Port-to-port isolation, thermal performance, and clock topology must be evaluated against the complete switch design.
پیشنهادی
Test and Measurement Equipment
DP83861VQM-3 is suitable for Ethernet-enabled test, measurement, and diagnostic equipment that needs a standards-based copper link at 10, 100, or 1000 Mb/s. The combination of three supported media rates and a host-interface choice gives instrumentation designers options for connecting controllers and service processors. Because this is a mixed-signal transceiver, the analog supply, clock source, termination, and layout requirements must follow the manufacturer guidance. The supplied data does not establish test accuracy or latency, so those must be measured in the final system.
پیشنهادی
Communications Module
DP83861VQM-3 fits a communications module that adds a high-speed copper Ethernet connection to a processor or programmable logic design. The verified 1000BASE-T capability provides a path to Gigabit links, while 10BASE-T and 100BASE-TX support maintains compatibility with slower infrastructure. GMII and MII host connectivity allows selection according to the controller architecture. Designers should validate timing margins, clock-source requirements, transformer selection, and software initialization because those details are not included in the supplied source excerpts.
پیشنهادی
Industrial Automation Controller
DP83861VQM-3 can support an automation controller that communicates over existing 10/100-Mb/s infrastructure while providing a migration path to 1-Gb/s links. Its listed IEEE 802.3u and IEEE 802.3z/ab references establish the relevant Ethernet protocol generations for the supported copper media. The interface is appropriate where a controller platform already supports the DP83861 footprint, clock arrangement, and initialization sequence. For safety-critical or extended-temperature installations, the commercial-grade indication in the supplied data requires formal qualification review.
پیشنهادی
خلاصه محصولات پیشنهادی
داده‌های مرجع مهندسی برای DP83861VQM-3 — مقایسه، راهنمای طراحی و اطلاعات انطباق.
راهنمای انتخاب
تفاوت‌های کلیدی
- Supports three copper Ethernet rates in one physical-layer transceiver (در مقابلGeneric 10/100M Ethernet PHY)
- Provides both GMII and MII host interfaces (در مقابلMII-only Gigabit Ethernet PHY)
- Documents Gigabit protocol coverage in the verified source excerpt (در مقابلUnverified generic Gigabit PHY)
- Defines a complete high-pin-count mixed-signal implementation target (در مقابلCompact Ethernet PHY package)
یادداشت‌های طراحی
Treat the DP83861VQM-3 as a mixed-signal component and preserve the manufacturer-defined land pattern for the 208-PQFP package. The supplied excerpts identify the package as 28 mm by 28 mm but do not provide the pin list, exposed-pad treatment, or recommended PCB dimensions. Do not infer those details from generic PQFP drawings; use the official package drawing and land-pattern guidance before releasing the PCB.
Separate digital host-interface return currents from the analog and transformer-side Ethernet paths. Keep clock and high-speed differential routes short and controlled, maintain continuous ground reference beneath signal routes, and avoid routing switching-node or high-current return paths through the PHY area. Exact trace geometry, via spacing, and impedance targets require the manufacturer layout guidance and the selected Ethernet transformer recommendation.
Confirm all core, analog, and I/O supply requirements from the manufacturer datasheet before selecting regulators and decoupling capacitors. The supplied excerpts do not contain voltage ranges, current consumption, tolerance, sequencing, or power-up timing, so those values must not be inferred. Validate startup behavior, supply ripple, and shutdown sequencing with the intended host controller and network transformer in the final reference design.
A PHY advertised as supporting Gigabit Ethernet is not automatically interchangeable with DP83861VQM-3. Verify terminal mapping, package dimensions, supply rails, clock modes, strap options, media support, register compatibility, and firmware initialization before approving a replacement. The available cross-reference search pages did not return confirmed substitute MPNs, so any proposed alternative must be validated with the actual manufacturer documentation and the existing PCB.
اطلاعات انطباق
The supplied verified excerpts do not state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals compliance. IEEE 802.3u and IEEE 802.3z/ab protocol references were present, but they are not product-compliance certifications.
