Datasheet | Mt7981b

Download the full MT7981B Datasheet (v1.2 or later) from MediaTek’s partner portal. Pay close attention to the PCIe and USB 3.0 layout guidelines—high-speed routing on this chip is sensitive to impedance mismatches above 2.5 GHz.

If you are sourcing components for a 2025 networking product, the Filogic 820 (MT7981B) offers a superior price-to-performance ratio over aging Qualcomm or Realtek solutions. Just ensure your BOM includes the external switch chip if you need multi-gig wired ports, and you will have a reference design capable of competing with routers twice its price. Mt7981b Datasheet

In the crowded market of System-on-Chip (SoC) solutions for networking, MediaTek’s Filogic series has emerged as a disruptive force. While flagship chips like the MT7986 (Filogic 830) grab headlines for raw speed, the MT7981B (Filogic 820) is quietly becoming the industry favorite for cost-effective, high-performance Wi-Fi 6 and 6E routers and access points. Download the full MT7981B Datasheet (v1

Disclaimer: Specifications are based on public datasheet revisions. Always consult the latest NDA documentation for final design parameters. Just ensure your BOM includes the external switch