ESP32-C6FH4

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-C6FH4 Pinout

Package: 32-VFQFN Exposed Pad

Notes:

• Pinout extracted from Table 2-5 (QFN32 IO MUX Pin Functions), which applies to the 32-pin variant ESP32-C6FH4.
• Pin numbers 1–5, 20, 29–32 are not listed in the IO MUX table; they are power, ground, or other non-GPIO pins not detailed in this section.
• I/O/T = Input/Output with high-impedance capability; I1 = Input with pull-up (signal forced to 1 if pin assigned to different function); O/T = Output with high-impedance capability.
• GPIO pins can be routed via GPIO Matrix for flexible peripheral signal mapping, or directly connected to specific peripherals (UART0, JTAG, SPI0/1, SPI2, SDIO).

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