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Features
![](/sites/all/themes/espressif/images/esp8266-modules/excellent-performance.jpg)
Excellent Performance
ESP8266EX integrates a Tensilica L106 32-bit RISC processor, which achieves extra-low power consumption and reaches a maximum clock speed of 160 MHz. The Real-Time Operating System (RTOS) and Wi-Fi stack allow 80% of the processing power to be available for user application programming and development.
![](/sites/all/themes/espressif/images/esp8266-modules/hight-integration.jpg)
High Integration
With antenna switches, RF balun, power amplifier, low-noise receive amplifier, filters, and power management modules in-built at the SoC level, ESP8266 modules can be easily integrated into space-constrained devices, due to their small size.
![](/sites/all/themes/espressif/images/esp8266-modules/fully-certified.jpg)
Fully Certified
- RF certification: SRRC, FCC, CE-RED, KCC, TELEC/MIC, IC, NCC.
- Green certification: RoHS, REACH.
- Reliability: HTOL, HTSL, μHAST, TCT, ESD.
![](/sites/all/themes/espressif/images/esp8266-modules/low-power-consumption.jpg)
Wide Range of Applications
ESP8266 modules can work with ESP-AT firmware to provide Wi-Fi connectivity to external host MCUs, or as self-sufficient MCUs with an RTOS-based SDK that can natively run connectivity applications. In both of these operation modes, customers can take advantage of using features like out-of-box cloud connectivity, low-power operation and Wi-Fi security support, including WPA3.