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ESP8266EX

ESP8266EX

Espressif Systems
RF System on a Chip - SoC SMD IC ESP8266EX, QFN32-pin, 5*5mm
NRND6,195 in stock
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Overview

The ESP8266EX is a highly integrated Wi-Fi SoC featuring a Tensilica L106 32-bit RISC processor and full 802.11b/g/n radio functionality. Designed for power-constrained IoT applications, it combines an MCU, memory interfaces, and RF components into a compact 5x5mm QFN32 package.

Why Choose This Part

It offers an industry-leading balance of cost and performance with a small footprint, requiring minimal external circuitry. The SoC includes advanced RF self-calibration and spur cancellation mechanisms to ensure stable operation even in interference-heavy environments.

Applications

Smart Home Appliances
Integrating Wi-Fi connectivity into thermostats, light switches, and smart plugs for remote control and monitoring.
Sensor Nodes
Collecting and transmitting environmental data to cloud platforms using low-power deep-sleep modes to preserve battery life.
Wi-Fi Serial Bridges
Adding wireless networking capabilities to existing legacy MCU systems via simple UART or SPI interfaces.
Industrial Wireless Control
Providing local wireless access points for industrial equipment configuration and basic data logging.

Key Specifications

GPIO 8
Type TxRx + MCU
Protocol 802.11b/g/n
Frequency 2.4GHz
Sensitivity -91dBm
Mounting Type Surface Mount
Package / Case 32-VFQFN Exposed Pad
Power - Output 20dBm
Data Rate (Max) 54Mbps
Voltage - Supply 2.5V ~ 3.6V
Serial Interfaces I2C, I2S, SPI, UART
RF Family/Standard WiFi
Current - Receiving 50mA ~ 56mA
Current - Transmitting 120mA ~ 170mA
Supplier Device Package 32-QFN (5x5)

Getting Started

Developers can utilize the Espressif IoT Development Framework (ESP-IDF) or the popular Arduino Core for ESP8266. Hardware prototyping is typically done using the ESP8266-DevKitC or similar NodeMCU-style development boards which break out the GPIO and provide USB-to-UART conversion.

Also Consider

ESP32-S3-WROOM-1 Espressif Systems - Offers a dual-core processor, Bluetooth 5 (LE) support, and significantly more GPIO pins for complex applications.
CYW43439 IFXInfineon Technologies - Provides dual-band Wi-Fi and Bluetooth coexistence for professional-grade IoT products requiring higher reliability.