Data Sheet
4 | P a g e Espressif Systems Oct 12, 2013
ESP8266 802.11bgn Smart Device
1 Introduction
Espressif Systems’ Smart Connectivity Platform (ESCP) of high performance wireless SOCs, for
mobile platform designers, provides unsurpassed ability to embed Wi-Fi capabilities within other
systems, at the lowest cost with the greatest functionality.
RF
receive
Analog
receive
RF
transmit
Analog
transmit
RF balun
PLL
Digital baseband
PMUSRAM
Registers
CPU
Sequencers
Accelerator
MAC
SDIO
SPI
GPIO
I2C
Interface
Bias circuits
Switch
VCO
1/2 PLL
PMU
Crystal
Figure 1: ESP8266 Block Diagram