Datasheet
Table Of Contents
- Product Overview
- 1 ESP32-C3 Series Comparison
- 2 Pin Definition
- 3 Functional Description
- 3.1 CPU and Memory
- 3.2 System Clocks
- 3.3 Analog Peripherals
- 3.4 Digital Peripherals
- 3.4.1 General Purpose Input / Output Interface (GPIO)
- 3.4.2 Serial Peripheral Interface (SPI)
- 3.4.3 Universal Asynchronous Receiver Transmitter (UART)
- 3.4.4 I2C Interface
- 3.4.5 I2S Interface
- 3.4.6 Remote Control Peripheral
- 3.4.7 LED PWM Controller
- 3.4.8 General DMA Controller
- 3.4.9 USB Serial/JTAG Controller
- 3.4.10 TWAI® Controller
- 3.5 Radio and Wi-Fi
- 3.6 Bluetooth LE
- 3.7 Low Power Management
- 3.8 Timers
- 3.9 Cryptographic Hardware Accelerators
- 3.10 Physical Security Features
- 3.11 Peripheral Pin Configurations
- 4 Electrical Characteristics
- 5 Package Information
- 6 Related Documentation and Resources
- Revision History
4 Electrical Characteristics
4. Electrical Characteristics
4.1 Absolute Maximum Ratings
Stresses beyond the absolute maximum ratings listed in the table below may cause permanent damage to the
device. These are stress ratings only, and do not refer to the functional operation of the device.
Table 11: Absolute Maximum Ratings
Symbol Parameter Min Max Unit
VDDA, VDD3P3, VDD3P3_RTC,
VDD3P3_CPU, VDD_SPI
Voltage applied to power supply pins
per power domain
–0.3 3.6 V
T
ST OR E
Storage temperature –40 150 °C
4.2 Recommended Operating Conditions
Table 12: Recommended Operating Conditions
Symbol Parameter Min Typ Max Unit
VDDA, VDD3P3 Voltage applied to power supply pins per
3.0 3.3 3.6 V
VDD3P3_RTC power domain
VDD_SPI (working as
input power supply)
1
— 3.0 3.3 3.6 V
VDD3P3_CPU
2, 3
Voltage applied to power supply pin 3.0 3.3 3.6 V
I
V DD
4
Current delivered by external power supply 0.5 — — A
T
A
Operating ambient
temperature
ESP32-C3
–40 —
105
°CESP32-C3FN4 85
ESP32-C3FH4 105
1
For more information, please refer to Section 2.3 Power Scheme.
2
When VDD_SPI is used to drive peripherals, VDD3P3_CPU should comply with the peripherals’ speci-
fications. For more information, please refer to Table 13.
3
To write eFuse, VDD3P3_CPU should not be higher than 3.3 V.
4
If you use a single power supply, the recommended output current is 500 mA or more.
4.3 VDD_SPI Output Characteristics
Table 13: VDD_SPI Output Characteristics
Symbol Parameter Typ Unit
R
SP I
On-resistance in 3.3 V mode 7.5 Ω
Espressif Systems 31
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ESP32-C3 Series Datasheet v1.2