MediaTek

MT7981B Wi-Fi 6 Router SoC | MediaTek

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MT7981B Descripción general

The MediaTek MT7981B is a highly integrated Wi-Fi 6 generation wireless network router system-on-chip (SoC) designed for high-performance home entertainment, home automation, and router platforms. The supplied data identifies it as a MediaTek wireless network router SoC, but does not provide verified CPU frequency, memory interface, Ethernet speed, radio configuration, package dimensions, pin count, or operating-temperature values. Its platform role is therefore best understood from the manufacturer-linked MT7981 Wi-Fi 6 platform datasheet and the provided product descriptions rather than from guessed numerical specifications.

A wireless network router SoC is an integrated semiconductor platform that combines processing, networking, and wireless-control functions into one device. In the product hierarchy, an SoC is a semiconductor, while a router SoC belongs to the broader networking and communications IC category. The MT7981B is intended to support Wi-Fi 6 router designs, where it can serve as the central platform for packet processing, wireless configuration, and connected-home functions. The provided results describe it as suitable for high wireless performance, home entertainment, and home automation.

The strongest verified feature statement is Wi-Fi 6 generation support. Other verified search context associates MT7981B with high-performance, developer-friendly router platforms and identifies MT7981B-based systems as suitable for AX3000-class Wi-Fi 6 hardware. However, the supplied data does not establish that MT7981B itself contains every radio used in an AX3000 router; external MediaTek wireless components may be used in a complete platform. Separate quantities such as CPU cores, clock rate, RAM, flash, Ethernet ports, 2.5G interfaces, package, and thermal limits require confirmation from the manufacturer datasheet.

Typical MT7981B applications include Wi-Fi 6 home routers, connected-home gateways, home entertainment networking, and automation controllers. In a router design, the device would be placed at the center of the network architecture and would require board-level support for memory, Ethernet interfaces, radio companions, power delivery, clocking, boot storage, and firmware. The provided data does not include a reference schematic, recommended companion-chip list, or electrical limits, so those implementation details should not be inferred.

Design planning should begin with the exact package and pin assignment in the applicable MediaTek MT7981 datasheet, followed by thermal, electromagnetic, power-integrity, and signal-integrity reviews. Because this is a digital communications SoC, SOA is not applicable. The available public results should be treated as discovery references rather than a substitute for the manufacturer’s complete engineering datasheet and programming documentation.

This product page summarizes the verified MT7981B identity, Wi-Fi 6 router positioning, available public datasheet references, and sourcing context while explicitly preserving missing electrical and package data. It is intended to help engineers identify the correct platform and locate the authoritative documents without fabricating unverified specifications.

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MT7981B Especificaciones

Product Type Wireless network router SoC
Wireless Generation Wi-Fi 6 generation
Manufacturer MediaTek
Target Application High wireless performance, home entertainment, and home automation
Architecture System-on-Chip (SoC)
Integration Level Highly integrated
Datasheet Availability Public MT7981B Wi-Fi 6 platform datasheet link provided

Guía de configuración de pines de MT7981B standard

Configuración de pines para MT7981B (encapsulado standard). La numeración de pines, las funciones y los diagramas de conexión se definen en la hoja de datos del fabricante. Consúltela para conocer el footprint exacto y las directrices de soldadura.

Diagrama de patillaje del encapsulado standard para MT7981B

No hay datos detallados de patillaje disponibles para MT7981B.

Consulte la hoja de datos para ver la configuración completa de patillas.

Aplicaciones típicas

MT7981B es adecuado para 6 aplicacións: Wi-Fi 6 Home Router, Connected-Home Gateway, Home Entertainment Networking, Developer-Oriented OpenWrt Router, High-Performance Wireless Access Platform, Industrial Network Controller.

🌐

Wi-Fi 6 Home Router

The MediaTek MT7981B is explicitly positioned as a highly integrated wireless network router SoC for Wi-Fi 6 generation platforms, making it a logical candidate for a home-router control and networking center. Its verified role is platform-level rather than a confirmed standalone radio specification, so the complete router may also require companion wireless, Ethernet, memory, clock, and power components. Engineers should use the SoC between supported external interfaces and the router’s radio subsystem, then validate packet throughput, wireless coverage, boot behavior, thermal rise, and firmware stability in the target enclosure. The main design trade-off is integration convenience versus the need to verify all board-level dependencies, because the supplied data does not establish CPU frequency, port counts, package pins, or power limits.

🧩

Connected-Home Gateway

MT7981B can serve as the processing and networking foundation of a connected-home gateway because the verified description names home automation as an intended use. A gateway design would use the SoC to coordinate local networking, management functions, and attached wireless or wired devices, while the implementation remains dependent on the interfaces and firmware documented by MediaTek. Engineers should define the control-plane requirements, device update mechanism, security boundary, and recovery behavior before assigning the platform to a gateway. Because the provided material does not verify supported protocols, memory capacity, operating temperature, or package, prototype testing should confirm boot reliability and service continuity before deployment. The benefit is a highly integrated router-class foundation; the trade-off is dependence on exact companion hardware and firmware support.

📺

Home Entertainment Networking

The verified MT7981B positioning includes home entertainment, where the SoC can support the networking control plane for media distribution, local storage access, and wireless client connectivity. In such a product, the device should be treated as a platform requiring complete interface and firmware validation rather than as a simple high-throughput switch. Engineering teams should quantify expected wired and wireless traffic, multicast behavior, latency sensitivity, boot recovery, and thermal behavior in the final enclosure. The supplied data does not state Ethernet port counts, memory support, package dimensions, or sustained processing performance, so those values cannot be used to promise media throughput. The primary advantage is alignment with Wi-Fi 6 home networking; the engineering caution is that actual streaming performance depends on the complete radio, switch, memory, firmware, and thermal design.

🔧

Developer-Oriented OpenWrt Router

MT7981B is a practical candidate for developer-oriented router platforms because the supplied search context includes OpenWrt references and describes the device as a Wi-Fi 6 generation router SoC. Development work should begin with the exact board support package, bootloader requirements, device-tree definition, memory map, wireless driver path, and recovery method supported for the chosen hardware. The public data does not identify a universal MT7981B pinout, so an engineer should not copy a community board schematic without confirming package, pin names, strap settings, clocks, and power rails. Compared with a less integrated router processor, the platform can simplify the networking design, but it also increases the need for careful thermal layout, high-speed interface routing, and firmware validation. Prototype logs and hardware measurements should replace assumptions in production documentation.

📶

High-Performance Wireless Access Platform

The verified description of MT7981B emphasizes high wireless performance, making it relevant to wireless access platforms that combine central packet processing with Wi-Fi 6 generation connectivity. The SoC should be evaluated against the complete radio architecture rather than judged by a standalone radio claim, because the supplied data does not confirm integrated RF channels, antenna interfaces, or maximum PHY rates. Design verification should include throughput under concurrent traffic, latency, packet-loss behavior, interference recovery, boot time, and thermal stability across the intended ambient range. Because CPU, memory, Ethernet, and package details are absent from the supplied evidence, any bandwidth target must be treated as a system requirement rather than an MT7981B datasheet value. The main opportunity is a high-performance integrated platform; the main risk is making unsupported claims before board and firmware validation.

🏭

Industrial Network Controller

MT7981B may be evaluated for an industrial network controller when the required protocol, environmental, lifecycle, and reliability conditions are confirmed separately. The verified data supports its use as a highly integrated wireless network router SoC, but it does not provide industrial temperature ratings, AEC-Q100 status, long-term supply commitments, or industrial certification. Before using it in factory equipment, verify operating-temperature limits, vibration and humidity requirements, watchdog behavior, recovery options, and cybersecurity lifecycle expectations. The platform’s integration can reduce the number of external networking devices, while the absence of verified environmental and lifecycle data prevents an unconditional industrial recommendation. Prototype environmental testing and supplier documentation are mandatory before design freeze, particularly for equipment expected to operate continuously in a sealed enclosure.

Resumen de productos recomendados

MT7976 MediaTek Wi-Fi companion family identified in MT7981B platform search context Se usa en: Wi-Fi 6 Home Router, Home Entertainment Networking, Developer-Oriented OpenWrt Router, High-Performance Wireless Access Platform MT7531 MediaTek Ethernet switch family identified in MT7981B-based router search context Se usa en: Wi-Fi 6 Home Router, Connected-Home Gateway, Home Entertainment Networking, Developer-Oriented OpenWrt Router, High-Performance Wireless Access Platform, Industrial Network Controller MT7981B MediaTek Se usa en: Connected-Home Gateway, Industrial Network Controller
What is MT7981B?
MT7981B is a MediaTek highly integrated wireless network router SoC for Wi-Fi 6 generation platforms. The supplied manufacturer-linked datasheet describes it for high wireless performance, home entertainment, and home automation. It is a router platform chip rather than a discrete RF transceiver, and its complete electrical, package, CPU, Ethernet, memory, and thermal specifications must be confirmed in the applicable MediaTek engineering documentation.
Is MT7981B a Wi-Fi 6 router chipset?
Yes, MT7981B is identified in the provided data as a Wi-Fi 6 generation wireless network router SoC. The available search results also associate MT7981B-based hardware with AX3000 Wi-Fi 6 router designs. AX3000 is a platform-level classification and should not be interpreted as a verified aggregate throughput specification for MT7981B alone without the manufacturer’s complete system documentation.
What applications use MT7981B?
The verified data identifies high-performance wireless routers, home entertainment, and home automation as target applications. MT7981B can also be evaluated for connected-home gateways and developer-oriented networking products when the associated firmware and board support are available. The supplied results do not provide a manufacturer reference-design list, so companion components and supported peripherals should be verified separately.
Where can I download the MT7981B datasheet PDF?
The verified web data provides a MediaTek MT7981B Wi-Fi 6 platform datasheet mirror at https://mirror2.openwrt.org/docs/MT7981B_Wi-Fi6_Platform_Datasheet_Open_V1.0.pdf. The search results also list datasheet pages from datasheet4u, AllDatasheet, Scribd, and icDirectory. For released production designs, use the applicable MediaTek document and confirm its revision and confidentiality status with the manufacturer or authorized distributor.
Where can I find the MT7981B pinout?
The MT7981B pinout is not included in the supplied verified specifications, and the package pin count is not stated in the provided excerpts. Therefore, this page cannot safely reproduce pin numbers or signal names. Engineers should use the package drawing and pin-assignment section of the applicable MT7981B datasheet; do not rely on a generic package diagram until the exact package variant is confirmed.
What CPU is used in MT7981B?
The supplied verified data does not state the MT7981B CPU core, architecture, or clock frequency. Several search results discuss neighboring MT7981 variants or router platforms, but those references are not sufficient to assign a CPU specification to MT7981B. Consult the exact MediaTek MT7981B datasheet or product brief before making processor, boot, memory, or firmware-performance assumptions.
Does MT7981B include Wi-Fi 6 radio functionality?
MT7981B is identified as a Wi-Fi 6 generation wireless network router SoC, but the supplied data does not specify whether all Wi-Fi 6 radio functions are integrated on-chip or whether companion MediaTek devices are required. A complete router design may pair the SoC with separate wireless devices and Ethernet components. Confirm the radio architecture, antenna interfaces, and companion-part recommendations in the complete platform documentation.
Is MT7981B suitable for home automation?
Yes, home automation is explicitly included in the verified description of MT7981B. The SoC could form the processing and networking core of a connected-home gateway when the required interfaces, firmware, wireless support, and security requirements are satisfied. The supplied data does not establish operating-temperature limits, long-term availability, or specific automation protocols, so those items require separate engineering verification.
Can I use MT7981B in a fanless router?
MT7981B may be evaluated in a fanless router, but the supplied data does not provide a verified thermal design table, maximum junction temperature, power dissipation, or package thermal resistance. A fanless design should therefore wait for a controlled prototype and thermal analysis rather than assume that no heatsink or airflow is needed. The platform’s thermal performance depends on the PCB, copper area, enclosure, ambient temperature, and sustained workload.
Where can I buy MT7981B online?
The verified search results identify MT7981B inventory and sourcing pages at icDirectory, Octopart India, and Wolfchip Electronics, while the cross-reference results point to DigiKey’s component search tools. These results do not provide a reliable unit price, authorization status, or guaranteed stock for the current date. For production procurement, request quotation, package details, date code, and traceability directly from an authorized distributor or the manufacturer’s approved channel.
What is the price of MT7981B?
The supplied web results do not include a verified MT7981B unit price, so this page does not publish a guessed price. The available results reference inventory searches and sourcing guides rather than a confirmed price schedule. Request a current quotation using the exact package, quantity, delivery region, and authorized-channel requirements. Pricing should be treated as valid only when tied to a supplier response and a stated quote date.
Is MT7981B in stock?
Stock status cannot be confirmed from the supplied results. One search result reports 46,200 pieces at icDirectory on its stated update date, another reports 41,645 pieces at Octopart India on its stated update date, and Wolfchip reports 2,390 pieces on its stated update date. These inventory snippets are not a guarantee, may refer to different package or sourcing conditions, and require confirmation before ordering.
What is the lead time for MT7981B?
A verified MT7981B lead time is not present in the supplied data. The inventory snippets do not establish factory lead time, authorized-distributor availability, allocation status, or delivery commitments. For a production schedule, ask the supplier to confirm lead time by quantity, date code, package, shipment origin, and approved sourcing channel, and do not rely on a marketplace inventory count as a procurement commitment.
What is the best drop-in replacement for MT7981B?
No verified drop-in replacement is established by the supplied cross-reference data. The results provide search tools and mention MT7981A, but they do not prove that MT7981A has the same package, pinout, electrical limits, firmware support, or software behavior as MT7981B. A true drop-in replacement requires manufacturer-confirmed package and pin compatibility plus verified functional equivalence; otherwise, treat alternatives as redesign candidates.
Can MT7981A replace MT7981B?
MT7981A cannot be assumed to replace MT7981B. The cross-reference search results identify an MT7981A equivalent search page, but the supplied data does not show identical pin assignment, package, interface configuration, or firmware compatibility. Because router SoCs often differ in integrated peripherals, boot behavior, and board support, MT7981A should be selected only after comparing the exact datasheets and reference designs.
MT7981B vs. MT7981A: which is better for a router?
The better choice depends on verified requirements that are not present in the supplied data. MT7981B is explicitly described as a Wi-Fi 6 generation router SoC, while the provided results do not establish MT7981A’s complete specifications or pin compatibility. Compare processor performance, Ethernet interfaces, wireless architecture, package, memory support, thermal limits, firmware maturity, and board design before selecting either part.
What are the key MT7981B specifications engineers should know?
The verified key facts are that MT7981B is a MediaTek highly integrated wireless network router SoC and targets Wi-Fi 6 generation applications including home entertainment and home automation. CPU, memory, Ethernet, package, pin count, supply voltage, operating temperature, and thermal data are not specified in the supplied excerpts. These missing values must be obtained from the exact MT7981B datasheet before schematic or PCB design begins.
Is MT7981B RoHS or REACH compliant?
The supplied verified data does not state RoHS, REACH, lead-free, halogen-free, or conflict-minerals status for MT7981B. Compliance should therefore be recorded as unknown rather than inferred from the manufacturer name or general semiconductor practice. Request the current manufacturer declaration, material composition statement, or authorized-distributor compliance documentation for the exact ordering code and package.
Does MT7981B have a safe operating area?
SOA is not applicable because MT7981B is a digital wireless network router SoC rather than a discrete power semiconductor. The SOA field is therefore null. Power integrity and thermal design still matter, but engineers should evaluate the datasheet’s recommended supplies, current limits, thermal data, power sequencing, and board-level derating rather than use a transistor SOA chart.

Datos de referencia de ingeniería para MT7981B — comparación, orientación de diseño e información de cumplimiento.

Guía de selección

Choose MT7981B when the design target is a Wi-Fi 6 generation wireless router or connected-home platform and the complete board can be validated against MediaTek’s current documentation. The verified evidence supports its platform identity and intended applications, but it does not confirm CPU, memory, Ethernet, package, pinout, thermal, or compliance specifications. Do not select a substitute based only on the mention of MT7981A or on a cross-reference search result. Before committing to a PCB, confirm the exact package, electrical limits, boot requirements, wireless companion strategy, firmware support, thermal performance, and procurement status. If any of those items differ, treat the candidate as a redesign rather than a drop-in replacement. For a new router, MT7981B is appropriate only when the surrounding platform and firmware ecosystem are available and validation resources are planned.

Comparación con alternativas

Parámetro Este producto
Brand MediaTek
Product Type Wireless network router SoC
Wireless Generation Wi-Fi 6 generation
Integration Highly integrated
Target Applications High wireless performance, home entertainment, home automation

Diferenciadores clave

  • Explicit Wi-Fi 6 generation positioning (frente a Unspecified generic router SoC)
  • Highly integrated router-platform positioning (frente a Unspecified discrete networking solution)
  • Targeted connected-home use cases (frente a Unverified industrial-only controller)

Notas de diseño

Do not assign MT7981B supply rails, sequencing, or current limits until the exact MediaTek datasheet and board design guide are available. The supplied excerpts identify a Wi-Fi 6 router SoC but do not specify supply voltage or power dissipation. During schematic review, verify every rail against the supported platform reference design, including high-current rail geometry, local decoupling, load-switch behavior, power-on reset sequencing, and brownout behavior. Estimated thermal calculations cannot be completed until verified power and thermal-resistance data are supplied.

Treat the MT7981B layout as a high-speed communications layout, even though the provided data does not state the exact package or interface details. Confirm the package drawing and pin assignment before routing, then reserve short return paths for clocks, high-speed digital interfaces, Ethernet-related companion links, and power distribution. Decoupling and via placement should follow the exact reference design. Do not derive a footprint or land pattern from an unrelated MT7981 variant because package and pin compatibility are not established here.

The main risk is treating public search snippets as a complete production specification. The supplied data confirms MediaTek, Wi-Fi 6 generation, and highly integrated wireless network router positioning, but omits CPU, memory, Ethernet, package, pin count, temperature, and compliance data. Before schematic release, compare the current MediaTek datasheet, hardware design guide, firmware support matrix, and approved reference design with the proposed board. Treat MT7981A and generic router SoCs as redesign candidates until pin and software compatibility are proven.

Perform a board-level thermal assessment before selecting MT7981B for a compact or fanless router. The verified material does not provide maximum power, junction temperature, thermal resistance, or ambient-temperature limits, so no numerical dissipation claim can be made. In prototype testing, measure the SoC, power regulators, memory, and wireless companions at worst-case traffic and the highest intended ambient temperature. Compare those measurements with the manufacturer’s eventual thermal limits and include copper, thermal vias, enclosure ventilation, or a heatsink only after validating the physical design.

Información de cumplimiento

RoHS
Unknown
REACH
Unknown
AEC-Q100
Not Applicable
Libre de plomo
Unknown
Libre de halógenos
Unknown
Minerales en conflicto
Unknown

The supplied data does not state RoHS, REACH, lead-free, halogen-free, conflict-minerals, or AEC-Q100 status for MT7981B. AEC-Q100 is not applicable to the supplied router SoC category because the data does not claim automotive qualification.

Búsquedas relacionadas

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Componentes & términos relacionados

MediaTek MT7981B MT7981 Wi-Fi 6 platform wireless network router SoC system-on-Chip Wi-Fi 6 generation highly integrated semiconductor router platform home entertainment home automation connected-home gateway OpenWrt MT7976 MT7531 MediaTek MT7981 networking semiconductor wireless router Ethernet companion Wi-Fi companion board support package firmware pin assignment package thermal management power sequencing
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