Part: Espressif ESP32-C6 Series (ESP32-C6, ESP32-C6FH4)

Type: Ultra-low-power Wi-Fi 6, Bluetooth 5, Zigbee, Thread SoC

Description: An ultra-low-power SoC featuring dual RISC-V processors (HP up to 160 MHz, LP up to 20 MHz), 2.4 GHz Wi-Fi 6 (802.11ax), Bluetooth 5 (LE), Zigbee 3.0, and Thread 1.3, with up to 30 GPIOs and integrated security features.

Operating Conditions:

• Supply voltage: 3.0–3.6 V
• Operating temperature: -40 to 105 °C
• HP RISC-V clock speed: up to 160 MHz
• LP RISC-V clock speed: up to 20 MHz

Absolute Maximum Ratings:

• Max supply voltage: 3.8 V (for VDD3P3_RTC, VDD3P3_CPU, VDD_SPI, VDD_SDIO, VDD_XTAL)
• Max junction/storage temperature: -40 to 150 °C (Storage temperature)

Key Specs:

• HP RISC-V processor clock speed: up to 160 MHz
• LP RISC-V processor clock speed: up to 20 MHz
• ROM: 320 KB
• HP SRAM: 512 KB
• LP SRAM: 16 KB
• Deep-sleep mode current consumption: 7 μA
• Wi-Fi: 2.4 GHz Wi-Fi 6 (802.11ax) 1T1R
• Bluetooth: Bluetooth LE 5.3 certified
• 802.15.4: Thread 1.3, Zigbee 3.0
• GPIOs: 30 (QFN40), 22 (QFN32)
• ADC: 12-bit SAR ADC, up to 7 channels

Features:

• 1T1R Wi-Fi 6 (802.11ax) in 2.4 GHz band, fully compatible with 802.11b/g/n
• Bluetooth LE 5.3 certified with high power mode (20 dBm)
• IEEE 802.15.4-2015 compliant for Thread 1.3 and Zigbee 3.0
• Dual RISC-V processors: High-Performance (HP) up to 160 MHz and Low-Power (LP) up to 20 MHz
• Integrated security features: Secure boot, Flash encryption, 4096-bit OTP, AES-128/256, ECC, HMAC, RSA, SHA, Digital signature, RNG
• Rich set of peripherals including UART, SPI, I2C, I2S, USB Serial/JTAG, TWAI, SDIO, LED PWM, Motor Control PWM, Remote control, ADC, Temperature sensor

Applications:

• Smart Home
• Industrial Automation
• Health Care
• Consumer Electronics
• Smart Agriculture
• POS Machines
• Service Robot
• Audio Devices
• Generic Low-power IoT Sensor Hubs
• Generic Low-power IoT Data Loggers

Package:

• QFN40 (5×5 mm)
• QFN32 (5×5 mm)

• Supports Single SPI, Dual SPI, Quad SPI (QPI) modes
• Data transmission is in bytes

With low power consumption, ESP32-C6 is an ideal choice for IoT devices in the following areas:

• Smart Home
• Industrial Automation
• Health Care
• Consumer Electronics
• Smart Agriculture
• POS Machines
• Service Robot
• Audio Devices
• Generic Low-power IoT Sensor Hubs
• Generic Low-power IoT Data Loggers
• Up to +21 dBm of power for an 802.11b transmission
• Up to +19.5 dBm of power for an 802.11ax transmission
• Up to -106 dBm of sensitivity for Bluetooth LE receiver (125 Kbps)

ESP32-C6 Pinout

QFN40 Package

QFN32 Package

Notes

• I/O/T: Pin can be configured as input, output, or high-impedance (tri-state).
• I1: Input function; if pin is assigned a different function, the input signal is pulled high (always 1).
• I0: Input function; if pin is assigned a different function, the input signal is pulled low (always 0).
• O/T: Output or tri-state.
• F0, F1, F2: Three multiplexed IO MUX functions per pin. F0 and F1 are typically GPIO or direct peripheral signals; F2 provides additional peripheral routing.
• JTAG pins (MTCK, MTDI, MTMS, MTDO on GPIO4–7) support debugging.
• SPI0/1 pins (SPIQ, SPID, SPIHD, SPIWP, SPICLK, SPICS0) connect to internal/external flash.
• SPI2 pins (FSPIQ, FSPID, FSPIHD, FSPIWP, FSPICLK, FSPICS0–5) provide fast SPI connectivity.
• SDIO pins (SDIO_CMD, SDIO_CLK, SDIO_DATA0–3) support SD card interface.
• UART0 pins (U0TXD on GPIO16, U0RXD on GPIO17) provide serial communication.
• QFN32 is a subset of QFN40; GPIO10, GPIO11, GPIO24–26, GPIO28–30 are not available in QFN32.

Table 5-4. DC Characteristics (3.3 V, 25 °C)

Stresses above those listed in T able 5-1 Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and normal operation of the device at these or any other conditions beyond those indicated in Section 5.2 Recommended Operating Conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.

Table 5-1. Absolute Maximum Ratings

Table 5-2. Recommended Power Characteristics