Overview: ESP32-C3 Series
Datasheet
Ultra-Low-Power SoC with RISC-V Single-Core CPU 2.4 GHz Wi-Fi (802.11 b/g/n) and Bluetooth® 5 (LE) Optional 4 MB flash in the chip’s package QFN32 (5×5 mm) Package
Including:
ESP32-C3 ESP32-C3FN4 – Not Recommended for New Designs (NRND) ESP32-C3FH4 ESP32-C3FH4AZ www.espressif.com Version 1.5 Espressif Systems Copyright © 2023 Product Overview ESP32-C3 is an low-power and highly-integrated MCU-based solution that supports 2.4 GHz Wi-Fi and Bluetooth® Low Energy (Bluetooth LE).
The functional block diagram of the SoC is shown below. Espressif ESP32-C3 Wi-Fi + Bluetooth® Low Energy SoC CPU and Memory
RISC-V 32-bit Microprocessor RF
2.4 GHz Balun + Switch External Main Clock Wireless Digital Circuits Wi-Fi MAC Wi-Fi Baseband 2.4 GHz Receiver 2.4 GHz Transmitter
RF Synthesizer Cache SRAM Fast RC Oscillator Bluetooth LE Link Controller JTAG ROM Phase Lock Loop Bluetooth LE Baseband GDMA SPI0/1
I2C
UART World Controller RMT SPI2
I2S
TWAI® Debug Assistant Peripherals Generalpurpose Timers
LED PWM
System Timer GPIO eFuse Controller DIG ADC Temperature Sensor USB Serial/ JTAG
Main System Watchdog Timers RTC Watchdog
Timer
Super Watchdog Security SHA RSA AES RNG HMAC Secure Boot Digital Signature
Flash Encryption RTC
RTC Memory PMU Brownout Detector Power consumption Normal Low power consumption components capable of working in Deep-sleep mode
ESP32-C3 Functional Block Diagram For more information on power consumption, see Section 3.7 Power Management. Espressif Systems 2 Submit Documentation Feedback ESP32-C3 Series Datasheet v1.
