1. General Overview
1.1. Introduction
Espressif Systems’ Smart Connectivity Platform (ESCP) is a set of high performance, high integration
wireless SOCs, designed for space and power constrained mobile platform designers. It provides
unsurpassed ability to embed Wi-Fi capabilities within other systems, or to function as a standalone
application, with the lowest cost, and minimal space requirement.
Figure 1 ESP8266EX Block Diagram
ESP8266EX offers a complete and self-contained Wi-Fi networking solution; it can be used to host
the application or to offload Wi-Fi networking functions from another application processor.
When ESP8266EX hosts the application, it boots up directly from an external flash. In has integrated
cache to improve the performance of the system in such applications.
Alternately, serving as a Wi-Fi adapter, wireless internet access can be added to any micro controller-
based design with simple connectivity (SPI/SDIO or I2C/UART interface).
ESP8266EX is among the most integrated WiFi chip in the industry; it integrates the antenna
switches, RF balun, power amplifier, low noise receive amplifier, filters, power management modules,
it requires minimal external circuitry, and the entire solution, including front-end module, is designed
to occupy minimal PCB area.
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