Wi-Fi IoT module

The ZWG3M is a Wi-Fi module consisting of the MT7686 Wi-Fi chip and G3 security chip. This module includes 2.4GHz chip antenna, Clock sources, and other RF components.


  • IEEE 802.11 b/g/n (2.4GHz, 1x1)
  • Supports 20MHz, 40MHz channels
  • Wi-Fi security WEP, WPA2 and WPS
  • Integrated 2.4GHz PA/LNA and RF switch

  • Platform
  • 192MHz ARM Cortex-M4 with FPU
  • Up to 384KB SRAM, with zero-wait state, max frequency 96MHz
  • Up to 32KB L1 cache, with high hit rate, zero-wait state, maximum frequency at 192MHz
  • Embedded 32Mbits flash, with less than 0.1uA (typical) and 80MHz maximum frequency Deep power-down current
  • Embedded 32Mbits pseudo SRAM with half sleep mode current: 10uA (PASR 1/8 at 25'C, 1x Refresh) and 96MHz maximum frequency

  • Module
  • Integrated 2.4GHz Antenna
  • Interfaces: UART, I2C, PWM, ADC, GPIO
  • 26MHz crystal oscillator / 32KHz crystal oscillator for RTC
  • Size: 27 mm x 20 mm x 2.4 mm, 20-Pin
  • Operating temperature range : -30 ~ 85'C
  • Integrated PUF based security chip for secure authentication

  • Application
  • IoT (Internet of Things)
  • Home Appliances
  • Sensor Networks
  • Security/Access Control
  • Smart Energy