Datasheet

Revision History
Revision History
Date Version Release Notes
2022-04-13 v1.2
• Added a new chip variant ESP32-C3FH4AZ;
• Updated Figure Block Diagram of ESP32-C3;
• Added the wake up source for Deep-sleep mode in Section 3.7 Low
Power Management.
2021-10-26 v1.1
• Updated Figure Block Diagram of ESP32-C3 to show power modes;
• Added CoreMark score in Features;
• Updated Table Pin Description to show default pin functions;
• Updated Figure ESP32-C3 Power Scheme and related descriptions;
• Added Table Mapping of SPI Signals and Chip Pins;
• Added note 3 to Table Recommended Operating Conditions;
• Other updates to wording.
2021-05-28 v1.0
• Updated power modes;
• Updated Section 2.4 Strapping Pins;
• Updated some clock names and their frequencies in Section 3.2 System
Clocks;
• Added clarification about ADC1 and ADC2 in Section 3.3.1 Analog-to-
Digital Converter (ADC);
• Updated the default configuration of U0RXD andU0TXD after reset in
Table IO MUX Pin Functions;
• Updated sampling rate in Table ADC Characteristics;
• Updated Table Reliability Qualications;
• Added the link to recommended PCB land pattern in Chapter 5 Package
Information.
2021-04-23 v0.8 Updated Wi-Fi Radio and Bluetooth LE Radio data.
2021-04-07 v0.7
• Updated information about USB Serial/JTAG Controller;
• Added GPIO2 to Section 2.4 Strapping Pins;
• Updated Figure Address Mapping Structure;
• Added Table IO MUX Pin Functions and Table Power-Up Glitches on Pins
in Section 3.4.1 General Purpose Input / Output Interface (GPIO);
• Updated information about SPI2 in Section 3.4.2 Serial Peripheral Inter-
face (SPI);
• Updated fixed-priority channel scheme in Section 3.4.8 General DMA
Controller;
• Updated Table Reliability Qualications.
Espressif Systems 43
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ESP32-C3 Series Datasheet v1.2