Acelink SM81 SOM features Filogic 820 WiFi 6 SoC and costs only $39

Acelink SM81 SOM features Filogic 820 WiFi 6 SoC and costs only $39

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The Acelink SM81 SOM is a compact, high-power WiFi 6/6E system-on-module (SOM) designed for IoT applications. It features a MediaTek Filogic 820 (MT7981A/B) SoC with support for dual-band concurrent operation and offers a variety of interfaces including USB, SPI, I2C, and Ethernet. With its flexible memory options and support for various operating systems, the SM81 can be used in diverse applications such as WiFi AP/Router, IoT, SDWAN, and VPN solutions.

Acelink SM81 SOM Specifications

  • Chipset: Mediatek MT7981BA (Dual-Core ARM Cortex-A53, 1.3GHz)
  • Memory:
    • NOR Flash: 2MB (Bootloader)
    • eMMC Storage: 16GB
    • DDR4 RAM: Up to 1GB
  • Interfaces:
    • 1x PCIe 2.0 (MT7981A only)
    • 1x Gigabit Ethernet (GBE) PHY
    • 1x HSGMII/SGMII+
    • 1x USB 2.0 Host
    • 2x UART (1x 2-pin, 1x 4-pin)
    • Hardware Watchdog, System Reset, WPS
    • Shared GPIOs
  • Wireless Standard: IEEE 802.11a/b/g/n/ac/ax (WiFi 6)
  • Frequency Bands: 2.4GHz & 5GHz (Simultaneous Dual-Band)
  • MIMO Configuration:
    • 2.4GHz: 2×2
    • 5GHz: 3×3
  • Channel Width:
    • 2.4GHz: 20MHz, 40MHz
    • 5GHz: 20MHz, 40MHz, 80MHz, 160MHz
  • Max Data Rates (Theoretical):
    • 2.4GHz: 573.5 Mbps (WiFi 6)
    • 5GHz: 3603 Mbps (WiFi 6)
  • Security: Hardware-accelerated AES-CCMP, GCMP
  • Power Consumption:
    • Typical: 8W
    • Max: 11W
  • Operating Temperature: -10°C to 70°C
  • Antenna Connectors: 3x IPEX
  • Software Support:
    • OpenWRT 23.05 (Linux Kernel 5.15)
    • Debian 11.8 Bullseye (Linux Kernel 5.15)
  • Dimensions: 50mm x 36mm x 3.0mm
  • Weight: 20g (Preliminary)

Acelink offers two evaluation kits for the SM81 SoM. The SM81 EVK-AP is designed for development and includes two Gigabit Ethernet ports and USB connectivity for power and debugging. For cellular IoT gateway applications, the SM81 EVK-LTE provides an M.2 slot for 4G LTE modules, dual SIM card slots, and extensive connectivity options including six Gigabit Ethernet ports, an SFP cage, and various serial and USB interfaces. This comprehensive set of tools allows developers to explore the full potential of the SM81 module in both wired and wireless networking scenarios.

Acelink’s SM81 Filogic 820 SoM can be purchased for $39, while its EVK-AP evaluation kit costs only $99. But at the time of writing the information for the EVK-LTE kit’s price is unlisted. For more details (with potential inaccuracies), see Acelink’s website.

by cnx-software

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About Debashis Das

Tech Content Creator | Hardware Design Engineer | IoT Enthusiast | Digital Storyteller | Video Creator | From crafting digital dialogues at Semicon Media to orchestrating online engagement at Electronics-lab.com, my journey is about making tech talk interesting and accessible. In the quiet corners of the day, I advocate for easier tech education, one tutorial at a time. Let's connect and keep the digital dialogue going!

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