GTI-MW320-L Module (FCC Certified)


The GTI-MW320L is a high performance, low-power WLAN WiFi Module with highly integrated System-on-Chip (SoC) solution designed for a broad array of smart devices for Internet of Things (IoT), wearables, accessories, Machine-to-Machine (M2M), home automation, and Smart Energy applications.

A high degree of integration enables very low system costs requiring only a single 3.3V power input, a 38.4 MHz crystal, and SPI Flash. It has been Integrated with on board sheet metal stamping antenna and another U.FL connector optional for external antenna.

The SoC includes a full-featured W LAN subsystem powered by proven and mature IEEE 802.11n/g/b NXP technology. The WLAN subsystem integrates a WLAN MAC, baseband, and direct-conversion RF radio with integrated PA, LNA, and transmit/receive switch. It also integrates a CPU subsystem with integrated memory to run NXP WLAN firmware to handle real time WLAN protocol processing to off-load many WLAN functions from the main application CPU. Please see block diagram.


The SoC is designed for low-power operation and includes several low-power states and fast wake-up times. Multiple power domains and clocks can be individually shut down to save power. The SoC also has a high-efficiency internal PA that can be operated in low-power mode to save power. The microcontroller and WLAN subsystems can be placed into low-power states, independently, supporting a variety of application use cases. An internal DC-DC regulator provides the 1.8V rail for the WLAN subsystem.

The SoC provides a full array of peripheral interfaces including SSP/SPI/I2S (3x), UART (3x), I2C (2x), General Purpose Timers and PWM, ADC, DAC, Analog Comparator, and GPIOs. It also includes a hardware cryptographic engine, RTC, and Watchdog Timer. The 88MW302/ 88MW322 includes a high speed USB On-The-Go (OTG) interface to enable USB audio, video, and other applications but 88MW320 doesn’t has this USB OTG.

A complete set of digital and analog interfaces enable direct interfacing for I/O avoiding the need for external chips. The application CPU can be used to support custom application development avoiding the need for another microcontroller or processor.