Chengdu Ebyte Electronic Technology Co.,Ltd.
ESP32-WROOM-32UE User Manual
Copyright ©2012–2019，Chengdu Ebyte Electronic Technology Co.,Ltd.
3
Ⅰ Functional Overview
1.1 Introduction
ESP32-WROOM-32UE is a WIFI module based on ESP32-D0WD-V3 chip solution.
ESP32-WROOM-32UE is a universal Wi-Fi module with powerful functions,
built-in ESP32-D0WD-V3 chip, Xtensa® dual-core 32-bit LX6 microprocessor, 448
KB ROM, 520 KB SRAM, 16 KB RTC SRAM supports up to 240 clock frequency in MHz.
Can be used for low-power sensor networks and demanding tasks such as speech
encoding, audio streaming, and MP3 decoding.
1.2 Features
4 MB SPI flash
，
Support AT commands;
Support serial communication, flow control. The baud rate supports up to 128000;
Support automatic and manual networking.
Ⅱ Electrical Characteristics
2.1 Absolute maximum ratings
Symbol
Parameter
Minimum
Maximum
Unit
VDD33
Power pin voltage
–0.3
3.6
V
T
STORE
Storage temperature
–40
85
°C
Chart 2- 1 Absolute maximum ratings
2.2 Recommended working conditions
Symbol
Parameter
Minimum
Typical
Maximum
Unit
VDD33
Power Pin Voltage
3.0
3.3
3.6
V
IVDD
Supply current of external power
supply
0.5
—
—
A
T
Recommended working temperature
–40
—
85
°C
Humidity
Humidity
—
85
—
%RH
Imax
Peak current
400
mA
