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1. Overview

1.

Overview

Espressif’s ESP8266EX delivers highly integrated Wi-Fi SoC solution to meet users’

continuous demands for efficient power usage, compact design and reliable performance

in the Internet of Things industry.

With the complete and self-contained Wi-Fi networking capabilities, ESP8266EX can

perform either as a standalone application or as the slave to a host MCU. When

ESP8266EX hosts the application, it promptly boots up from the flash. The integrated high-

speed cache helps to increase the system performance and optimize the system memory.

Also, ESP8266EX can be applied to any microcontroller design as a Wi-Fi adaptor through

SPI/SDIO or UART interfaces.

ESP8266EX integrates antenna switches, RF balun, power amplifier, low noise receive

amplifier, filters and power management modules. The compact design minimizes the PCB

size and requires minimal external circuitries.

Besides the Wi-Fi functionalities, ESP8266EX also integrates an enhanced version of

Tensilica’s L106 Diamond series 32-bit processor and on-chip SRAM. It can be interfaced

with external sensors and other devices through the GPIOs. Software Development Kit

(SDK) provides sample codes for various applications.

Espressif Systems’ Smart Connectivity Platform (ESCP) enables sophisticated features

including:

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Fast switch between sleep and wakeup mode for energy-efficient purpose;

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Adaptive radio biasing for low-power operation

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Advance signal processing

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Spur cancellation and RF co-existence mechanisms for common cellular, Bluetooth,

DDR, LVDS, LCD interference mitigation

1.1. Wi-Fi Key Features

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802.11 b/g/n support

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802.11n support (2.4 GHz), up to 72.2 Mbps

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Defragmentation

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2 x virtual Wi-Fi interface

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Automatic beacon monitoring (hardware TSF)

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Support Infrastructure BSS Station mode/SoftAP mode/Promiscuous mode

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Antenna diversity


Espressif

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2018.11