Espressif ESP32 Datasheet

The ESP32 datasheet provides pin configurations, electrical characteristics, package details, and integrated Wi‑Fi/Bluetooth specifications.


Espressif ESP32 Datasheet - cover page
Brand
Espressif
Category
Other Electronics
Document type
Datasheet
Language
Chinese
Pages
35
File format
PDF
File size
3.8 MB
Published
08 October, 2026
Updated
08 October, 2026
MD5 checksum
8CBEC7D31D4AAB1AABFCD6A807D3FE7C

About this manual

The ESP32 is a high‑performance microcontroller with integrated 2.4 GHz Wi‑Fi and Bluetooth. The datasheet lists the pin‑out, power supply ranges, and the optional PSRAM and flash configurations.

Detailed sections cover the RTC, ADC, UART, SDIO interfaces, as well as the various development kits and mesh modules that use the ESP32. Package information and mechanical drawings are also included. This manual is written in Chinese.

What's inside

  • Pin Configuration
  • Electrical Characteristics
  • Flash and PSRAM
  • RTC
  • ADC
  • UART
  • SDIO
  • ESP32‑LyraT and Sense Kit
  • ESP‑Mesh Kits
  • Package Information

Specifications

Operating voltage1.8 V to 3.6 V
Crystal frequency40 MHz ±10 ppm
Flash memory typeSiP Flash (optional PSRAM‑3V3)
Package5 mm × 5 mm QFN

Frequently asked questions

What is the operating voltage range of the ESP32?

The ESP32 operates from 1.8 V up to 3.6 V.

What type of flash memory does the ESP32 use?

It uses SiP Flash, with an optional 3.3 V PSRAM module.

What is the crystal frequency for the ESP32?

The reference crystal runs at 40 MHz with a tolerance of ±10 ppm.

What package is the ESP32‑WROOM‑32 module housed in?

The module is packaged in a 5 mm × 5 mm QFN package.

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