ESP32-WROOM-32
Datasheet
Version 2.8
Espressif Systems
Copyright © 2019
www.espressif.com
About This Document
This document provides the specifications for the ESP32-WROOM-32 module.
Revision History
For revision history of this document, please refer to the
last page.
Documentation Change Notification
Espressif provides email notifications to keep customers updated on changes to technical documentation. Please
subscribe at
www.espressif.com/en/subscribe.
Certification
Download certificates for Espressif products from
www.espressif.com/en/certificates.
Disclaimer and Copyright Notice
Information in this document, including URL references, is subject to change without notice. THIS DOCUMENT IS
PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER, INCLUDING ANY WARRANTY OF MERCHANTABIL-
ITY, NON-INFRINGEMENT, FITNESS FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE
ARISING OUT OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.
All liability, including liability for infringement of any proprietary rights, relating to use of information in this docu-
ment is disclaimed. No licenses express or implied, by estoppel or otherwise, to any intellectual property rights
are granted herein. The Wi-Fi Alliance Member logo is a trademark of the Wi-Fi Alliance. The Bluetooth logo is a
registered trademark of Bluetooth SIG.
All trade names, trademarks and registered trademarks mentioned in this document are property of their respective
owners, and are hereby acknowledged.
Copyright © 2019 Espressif Inc. All rights reserved.
Contents
1 Overview
2 Pin Definitions
2.1
2.2
2.3
Pin Layout
Pin Description
Strapping Pins
1
3
3
3
4
6
6
6
6
7
8
9
9
9
9
10
11
11
11
12
13
14
16
17
18
18
18
19
3 Functional Description
3.1
3.2
3.3
3.4
CPU and Internal Memory
External Flash and SRAM
Crystal Oscillators
RTC and Low-Power Management
4 Peripherals and Sensors
5 Electrical Characteristics
5.1
5.2
5.3
5.4
5.5
Absolute Maximum Ratings
Recommended Operating Conditions
DC Characteristics (3.3 V, 25 °C)
Wi-Fi Radio
BLE Radio
5.5.1 Receiver
5.5.2 Transmitter
5.6
Reflow Profile
6 Schematics
7 Peripheral Schematics
8 Physical Dimensions
9 Recommended PCB Land Pattern
10Learning Resources
10.1 Must-Read Documents
10.2 Must-Have Resources
Revision History
List of Tables
1
2
3
4
5
6
7
8
9
ESP32-WROOM-32 Specifications
Pin Definitions
Strapping Pins
Absolute Maximum Ratings
Recommended Operating Conditions
DC Characteristics (3.3 V, 25 °C)
Wi-Fi Radio Characteristics
Receiver Characteristics – BLE
Transmitter Characteristics – BLE
1
3
5
9
9
9
10
11
11
List of Figures
1
2
3
4
5
6
7
8
ESP32-WROOM-32 Pin Layout (Top View)
Reflow Profile
ESP32-WROOM-32 Schematics
ESP32-WROOM-32 Peripheral Schematics
Discharge Circuit for VDD33 Rail
Reset Circuit
Physical Dimensions of ESP32-WROOM-32
Recommended PCB Land Pattern
3
12
13
14
14
15
16
17
