Datasheet ESP32-C3 (Espressif) - 7

link to page 35 link to page 35 link to page 36 link to page 36 link to page 36 link to page 36 link to page 37 link to page 37 link to page 38 link to page 39 link to page 40 link to page 41 link to page 41 link to page 41 link to page 42 link to page 42 link to page 42 link to page 43 link to page 43 link to page 44 link to page 44 link to page 44 link to page 45 link to page 45 link to page 45 link to page 46 link to page 46 link to page 46 link to page 46 link to page 47 link to page 47 link to page 48 link to page 48 link to page 48 link to page 49 link to page 49 link to page 49 link to page 49 link to page 51 link to page 51 link to page 51 link to page 51 link to page 51 link to page 52 link to page 52 link to page 52 Contents 4.1.2.3 Cache 35 4.1.2.4 eFuse Controller 35 4.1.3 System Components 36 4.1.3.1 IO MUX and GPIO Matrix 36 4.1.3.2 Reset 36 4.1.3.3 Clock 37 4.1.3.4 Interrupt Matrix 37 4.1.3.5 System Timer 38 4.1.3.6 Power Management Unit 38 4.1.3.7 Timer Group 40 4.1.3.8 Watchdog Timers 40 4.1.3.9 XTAL32K Watchdog Timers (XTWDT) 41 4.1.3.10 Permission Control 41 4.1.3.11 World Controller (WCL) 41 4.1.3.12 System Registers 42 4.1.3.13 Debug Assistant 42 4.1.4 Cryptography and Security Component 43 4.1.4.1 AES Accelerator 43 4.1.4.2 HMAC Accelerator 43 4.1.4.3 RSA Accelerator 44 4.1.4.4 SHA Accelerator 44 4.1.4.5 Digital Signature 44 4.1.4.6 External Memory Encryption and Decryption 45 4.1.4.7 Random Number Generator 45 4.1.4.8 Clock Glitch Detection 45 4.2 Peripherals 46 4.2.1 Connectivity Interface 46 4.2.1.1 UART Controller 46 4.2.1.2 SPI Controller 46 4.2.1.3 I2C Controller 47 4.2.1.4 I2S Controller 47 4.2.1.5 USB Serial/JTAG Controller 48 4.2.1.6 Two-wire Automotive Interface 48 4.2.1.7 LED PWM Controller 48 4.2.1.8 Remote Control Peripheral 49 4.2.2 Analog Signal Processing 49 4.2.2.1 SAR ADC 49 4.2.2.2 Temperature Sensor 50 4.3 Wireless Communication 51 4.3.1 Radio 51 4.3.1.1 2.4 GHz Receiver 51 4.3.1.2 2.4 GHz Transmitter 51 4.3.1.3 Clock Generator 51 4.3.2 Wi-Fi 52 4.3.2.1 Wi-Fi Radio and Baseband 52 4.3.2.2 Wi-Fi MAC 52 Espressif Systems 7 ESP32-C3 Series Datasheet v2.3 Submit Documentation Feedback Document Outline Product Overview Features Applications 1 ESP32-C3 Series Comparison 1.1 Nomenclature 1.2 Comparison 1.3 Chip Revision 2 Pins 2.1 Pin Layout 2.2 Pin Overview 2.3 IO Pins 2.3.1 IO MUX Functions 2.3.2 Analog Functions 2.3.3 Restrictions for GPIOs 2.3.4 Peripheral Pin Assignment 2.4 Analog Pins 2.5 Power Supply 2.5.1 Power Pins 2.5.2 Power Scheme 2.5.3 Chip Power-up and Reset 2.6 Pin Mapping Between Chip and Flash 3 Boot Configurations 3.1 Chip Boot Mode Control 3.2 ROM Messages Printing Control 4 Functional Description 4.1 System 4.1.1 Microprocessor and Master 4.1.1.1 High-Performance CPU 4.1.1.2 GDMA Controller 4.1.2 Memory Organization 4.1.2.1 Internal Memory 4.1.2.2 External Memory 4.1.2.3 Cache 4.1.2.4 eFuse Controller 4.1.3 System Components 4.1.3.1 IO MUX and GPIO Matrix 4.1.3.2 Reset 4.1.3.3 Clock 4.1.3.4 Interrupt Matrix 4.1.3.5 System Timer 4.1.3.6 Power Management Unit 4.1.3.7 Timer Group 4.1.3.8 Watchdog Timers 4.1.3.9 XTAL32K Watchdog Timers (XTWDT) 4.1.3.10 Permission Control 4.1.3.11 World Controller (WCL) 4.1.3.12 System Registers 4.1.3.13 Debug Assistant 4.1.4 Cryptography and Security Component 4.1.4.1 AES Accelerator 4.1.4.2 HMAC Accelerator 4.1.4.3 RSA Accelerator 4.1.4.4 SHA Accelerator 4.1.4.5 Digital Signature 4.1.4.6 External Memory Encryption and Decryption 4.1.4.7 Random Number Generator 4.1.4.8 Clock Glitch Detection 4.2 Peripherals 4.2.1 Connectivity Interface 4.2.1.1 UART Controller 4.2.1.2 SPI Controller 4.2.1.3 I2C Controller 4.2.1.4 I2S Controller 4.2.1.5 USB Serial/JTAG Controller 4.2.1.6 Two-wire Automotive Interface 4.2.1.7 LED PWM Controller 4.2.1.8 Remote Control Peripheral 4.2.2 Analog Signal Processing 4.2.2.1 SAR ADC 4.2.2.2 Temperature Sensor 4.3 Wireless Communication 4.3.1 Radio 4.3.1.1 2.4 GHz Receiver 4.3.1.2 2.4 GHz Transmitter 4.3.1.3 Clock Generator 4.3.2 Wi-Fi 4.3.2.1 Wi-Fi Radio and Baseband 4.3.2.2 Wi-Fi MAC 4.3.2.3 Networking Features 4.3.3 Bluetooth LE 4.3.3.1 Bluetooth LE PHY 4.3.3.2 Bluetooth LE Link Controller 5 Electrical Characteristics 5.1 Absolute Maximum Ratings 5.2 Recommended Operating Conditions 5.3 VDD_SPI Output Characteristics 5.4 DC Characteristics (3.3 V, 25 °C) 5.5 ADC Characteristics 5.6 Current Consumption 5.6.1 RF Current Consumption in Active Mode 5.6.2 Current Consumption in Other Modes 5.7 Memory Specifications 5.8 Reliability 6 RF Characteristics 6.1 Wi-Fi Radio 6.1.1 Wi-Fi RF Transmitter (TX) Characteristics 6.1.2 Wi-Fi RF Receiver (RX) Characteristics 6.2 Bluetooth 5 (LE) Radio 6.2.1 Bluetooth LE RF Transmitter (TX) Characteristics 6.2.2 Bluetooth LE RF Receiver (RX) Characteristics 7 Packaging ESP32-C3 Consolidated Pin Overview ESP32-C3 Chip Series Group Overview Datasheet Versioning Glossary Related Documentation and Resources Revision History