Data Sheet
Table Of Contents
- 1.General Overview
- 1.1.Introduction
- 1.2.Features
- 1.3.Parameters
- 1.4.Ultra Low Power Technology
- 1.5.Major Applications
- 2.Hardware Overview
- 3.Pins and Definitions
- 3.1.GPIO
- 3.2.Secure Digital Input/Output Interface (SDIO)
- 3.3.Serial Peripheral Interface (SPI/HSPI)
- 3.4.Inter-integrated Circuit Interface (I2C)
- 3.5.I2S
- 3.6.Universal Asynchronous Receiver Transmitter (UART)
- 3.7.Pulse-Width Modulation (PWM)
- 3.8.IR Remote Control
- 3.9.ADC (Analog-to-digital Converter)
- 3.10.LED Light and Button
- 4.Firmware & Software Development Kit
- 5.Power Management
- 6.Clock Management
- 8.FCC Warming Statement
- This device complies with part 15 of the FCC Rules
- (1)This device may not cause harmful interference,
- (2)and this device must accept any interference re
- FCC Radiation Exposure Statement:
- This equipment complies with FCC radiation exposur
- Information to the user.
- Note: This equipment has been tested and found to
- -Reorient or relocate the receiving antenna.
- -Increase the separation between the equipment and
- -Connect the equipment into an outlet on a circuit
- -Consult the dealer or an experienced radio/TV tec
- 9.Appendix: QFN32 Package Size
ESP8266 Datasheet
Espressif Systems
Espressif Systems
June1,2015
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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 WiFi 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 WiFi networking solution; it can be used to host the
application or to offload WiFi 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 WiFi 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 PCBarea.
ESP8266EX also integrates anenhanced version of Tensilica’s L106 Diamond series 32-bit processor,
with on-chip SRAM, besides the WiFi functionalities. ESP8266EX is often integrated with external
sensors and other application specific devices through its GPIOs; sample codes for such applications
are provided in the software development kit (SDK).