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ESP8266EX QFN-32 2.4G WiFi Wireless Transceiver IoT SoC Chip
ESP8266EX Product Overview
ESP8266EX is a highly integrated 2.4GHz WiFi IoT SoC developed by Espressif. Packaged in QFN-32 (5×5mm), it integrates Tensilica L106 32-bit MCU, RF PA, LNA, antenna switch and power management circuit. With built-in TCP/IP stack, it can run firmware standalone or act as WiFi adapter for host MCU, greatly reducing BOM cost and PCB footprint for IoT wireless projects.
ESP8266EX Key Features
2.4GHz 802.11 b/g/n WiFi, data rate up to 72.2Mbps
Single-core MCU up to 80/160MHz, supports AT commands, SDK development and OTA upgrade
Integrated PA & LNA, RX sensitivity -91dBm, TX power up to 21.5dBm
3 WiFi modes: Station, SoftAP, SoftAP+Station
Interfaces: UART, SPI, SDIO, I2C, GPIO, 10-bit ADC, PWM
Operating voltage: 2.5~3.6V, Temp range: -40°C~125°C, multiple low-power sleep modes
Security: WEP, TKIP, AES, WPA/WPA2
ESP8266EX Applications
Smart home devices, smart plugs, WiFi lights, industrial wireless controllers, sensor networks, IP cameras, wearables, IoT nodes, wireless data acquisition terminals.
ESP8266EX Advantages and Highlights
Highly integrated RF circuit with fewer external components to save PCB space. Compact QFN32 package for miniaturized products. Mature stable solution with abundant documents and mass production reliability. AT command support for fast WiFi connection to shorten R&D cycle. Multiple power-saving modes for battery-powered low-power IoT devices.
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Question: What is the ESP8266EX chip?
Answer: It is a highly integrated Wi-Fi System-on-Chip (SoC) from Espressif that supports 802.11 b/g/n protocols, capable of running standalone or serving as a slave to a host MCU.Question: What is the core processor and clock frequency?
Answer: It features a Tensilica L106 32-bit RISC processor with a maximum clock speed of 160 MHz.Question: What wireless protocols and speeds does it support?
Answer: It supports IEEE 802.11 b/g/n standards on the 2.4GHz band, reaching a maximum physical layer data rate of 72.2 Mbps.Question: What internal storage resources are available?
Answer: The chip integrates SRAM and uses an external SPI/SDIO interface for flash. It can boot directly from external flash when running standalone.Question: What package and physical dimensions does it use?
Answer: It uses a 32-pin QFN package (with exposed pad) measuring 5.0 mm × 5.0 mm.Question: What are the operating voltage and temperature ranges?
Answer: The operating voltage is 2.5V to 3.6V, and the industrial-grade temperature range covers -40°C to +125°C.Question: What is its RF performance?
Answer: It delivers up to +20 dBm transmit power in 802.11b mode, with a receive sensitivity of approximately -91 dBm. TX current is 120-170mA and RX current is 50-56mA.Question: What applications is this chip suitable for?
Answer: It is widely used in smart sockets, smart lighting, industrial wireless control, sensor networks, and wearable electronics.
- Part number:
- ESP8266EX
- Product Series:
- ESP8266
- Product Type:
- Wi-Fi SoC
- Processor:
- Tensilica L106 32-bit Single-Core
- Max Frequency:
- 160MHz
- SRAM:
- 50KB
- Wi-Fi Standard:
- IEEE 802.11b/g/n
- Operating Voltage:
- 2.5V ~ 3.6V
- Operating Temperature:
- -40°C ~ +125°C
- Development Environments:
- ESP8266 RTOS SDK、Non-OS SDK、Arduino
