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ESP8266EX - Tiny Wireless 802.11 b/g/n Chip



Delivery: Ships same or next business day

Availability: in stock

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Warranty: 1 year Comprehensive support for all products

Minimum Quantity Required: 10 chips.

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Designed for use in Internet of Things (IoT), mobile, and wearable electronics applications, the wireless ESP8266 chip provides extremely low-power consumption and occupies minimal PCB area. The minimal wake up time feature can be utilized by mobile device SOCs which allows them to remain in low-power standby mode until WiFi is needed.

With a 32-bit low power micro-controller (MCU), the EXP8266 is often integrated with external sensors and other application-specific devices through its 17 GPIOs. It can host an application or offload 802.11 WiFi networking functions from another application processor.

Examples of major applications include:

  • Home automation
  • Smart lights and plugs
  • Home appliances
  • IP cameras
  • Baby monitors
  • Sensor networks
  • Security ID tags
  • Mesh networks
  • Industrial wireless control
  • Wearable electronics
  • WiFi location-aware devices
  • WiFi position system beacons

ESP8266 Chip Features:

  • 802.11 b/g/n
  • Integrated low power 32-bit MCU
  • Integrated 10-bit ADC
  • Integrated TCP/IP protocol stack
  • Integrated TR switch, balun, LNA, power amplifier and matching network
  • Integrated PLL, regulators and power management units

  • WiFi 2.4 GHz supports security protocols WPA/WPA2
  • Supports antenna diversity
  • Supports Station / SoftAP / Station+SoftAP operation modes
  • Supports Smart Link Function for both Android and iOS devices

  • FCC, CE, TELEC, WiFi Alliance and SRRC certified


Antenna Types Supported

  • PCB Trace
  • External
  • IPEX Connector
  • Ceramic chip

Certifications FCC, CE, TELEC, SRRC
Dimensions 5mm x 5mm
Firmware Upgrade: UART download / OTA (via network)
Frequency band WiFi: 2.4G-2.5G (2400M-2483.5M)
Mpn ESP8266EX

Tx Power:

  • WiFi 802.11 b: +20 dBm
  • WiFi 802.11 g: +17 dBm
  • WiFi 802.11 n: +14 dBm

Security/Protection Software: WPA / WPA2 Encryption: WEP / TKIP / AES

  • WiFi mode: Station / SoftAP / SoftAP+Station
  • Supports cloud server development / SDK for custom firmware development
  • Network protocols: IPv4, TCP / UDP / HTTP / FTP

Temperature range Operating & Storage: -40ºC to 125ºC (-40ºF to 257ºF)

  • Operating voltage: 3.0 ~ 3.6V
  • Operating current: Average value: 80mA


ESP8266 Datasheet View (PDF)
ESP8266 Quick Start Guide View (PDF)
ESP8266 FAQs View (PDF)
ESP8266 Hardware Matching Guide View (PDF)
ESP8266 Hardware Design Guidelines View (PDF)
ESP8266 Technical Reference View (PDF)
ESP8266 Pin List Release View (XLSX)
ESP8266 Wi-Fi Channel Selection Guidelines View (PDF)
ESP8266 Geolocating View (PDF)
ESP8266 Low Power Solutions View (PDF)
ESP8266 SDK Getting Started Guide  View (PDF)
ESP8266 SDK SSL User Manual View (PDF)
ESP8266 SDK Application Note Firmware Download Protocol View (PDF)
ESP8266 RTOS SDK Programming Guide View (PDF)
ESP8266 RTOS SDK API Reference View (PDF)
ESP8266 Non-OS SDK IOT Demo Guide View (PDF)
ESP8266 Non-OS SDK API Reference View (PDF)
ESP8266 AT Instruction Set View (PDF)
ESP8266 AT Command Examples View (PDF)
ESP8266 Phy Init Bin Parameter Configuration Guide View (PDF)


ESP8266 AT Bin Download (ZIP)
ESP8266 Flash Download Tools Download (RAR)
ESP8266 RTOS SDK Download (ZIP)

Tech Support

We have the best technical support engineers that know how to use our products. If our Tech Support cannot solve your problem, we will contact the design engineer or manufacturer to help find a resolution.