Data Sheet
Table Of Contents
- Overview
- Wi-Fi Key Features
- Specifications
- Applications
- CPU, Memory, and Flash
- Clock
- Radio
- Wi-Fi
- Power Management
- General Purpose Input/Output Interface (GPIO)
- Secure Digital Input/Output Interface (SDIO)
- Serial Peripheral Interface (SPI/HSPI)
- I2C Interface
- I2S Interface
- Universal Asynchronous Receiver Transmitter (UART)
- Pulse-Width Modulation (PWM)
- IR Remote Control
- ADC (Analog-to-Digital Converter)
- Electrical Characteristics
- RF Power Consumption
- Wi-Fi Radio Characteristics
- Must-Read Documents
- Must-Have Resources
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2. Pin Definitions
31
RES12K
I
Serial connection with a 12 kΩ resistor and connect to the
ground
32
EXT_RSTB
I
External reset signal (Low voltage level: active)
Pin
Name
Type
Function
📖 Note:
1. GPIO2, GPIO0, and MTDO are used to select booting mode and the SDIO mode;
2. U0TXD should not be pulled externally to a low logic level during the powering-up.
Espressif
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2020.10