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![](https://www.espressif.com/sites/default/files/hardware-feature/temperature_1.png)
High Durability
ESP8266EX is capable of functioning consistently in industrial environments, due to its wide operating temperature range. With highly-integrated on-chip features and minimal external discrete component count, the chip offers reliability, compactness and robustness.
![](https://www.espressif.com/sites/default/files/hardware-feature/chip-slot.png)
Compactness
ESP8266EX is integrated with a 32-bit Tensilica® processor, standard digital peripheral interfaces, antenna switches, RF balun, power amplifier, low noise receive amplifier, filters and power management modules. All of them are included in one small package, our ESP8266EX.
![](https://www.espressif.com/sites/default/files/hardware-feature/battery_1.png)
Power-Saving Architecture
Engineered for mobile devices, wearable electronics and IoT applications, ESP8266EX achieves low power consumption with a combination of several proprietary technologies. The power-saving architecture features three modes of operation: active mode, sleep mode and deep sleep mode. This allows battery-powered designs to run longer.
![](https://www.espressif.com/sites/default/files/hardware-feature/chip_1.png)
![](https://www.espressif.com/sites/default/files/hardware-feature/wifi.png)
32-bit Tensilica Processor
The ESP8266EX microcontroller 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 about 80% of the processing power to be available for user application programming and development.