Datasheet ESP32-C3 (Espressif) - 3

Features Wi-Fi • Complies with IEEE 802.11b/g/n • Supports 20 MHz and 40 MHz bandwidth in 2.4 GHz band • 1T1R mode with data rate up to 150 Mbps • Wi-Fi Multimedia (WMM) • TX/RX A-MPDU, TX/RX A-MSDU • Immediate Block ACK • Fragmentation and defragmentation • Transmit opportunity (TXOP) • Automatic Beacon monitoring (hardware TSF) • 4 × virtual Wi-Fi interfaces • Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode Note that when ESP32-C3 scans in Station mode, the SoftAP channel will change along with the Station channel • Antenna diversity • 802.11mc FTM Bluetooth® • Bluetooth LE: Bluetooth 5, Bluetooth mesh • High power mode with up to 20 dBm transmission power • Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps • Advertising extensions • Multiple advertisement sets • Channel selection algorithm #2 • Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna CPU and Memory • 32-bit RISC-V single-core processor • Clock speed: up to 160 MHz • CoreMark® score: – 1 core at 160 MHz: 483.27 CoreMark; 3.02 CoreMark/MHz • General DMA controller (GDMA), with 3 transmit channels and 3 receive channels Espressif Systems 3 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