DESCRIPTION
ESP32-C6 is Espressif’s first Wi-Fi 6 SoC integrating 2.4 GHz Wi-Fi 6, Bluetooth 5 (LE) and the 802.15.4 protocol. ESP32-C6 achieves an industry-leading RF performance, with reliable security features and multiple memory resources for IoT products. It consists of a high-performance (HP) 32-bit RISC-V processor, which can be clocked up to 160 MHz, and a low-power (LP) 32-bit RISC-V processor, which can be clocked up to 20 MHz. It has a 320KB ROM, a 512KB SRAM, and works with external flash. It comes with 30 (QFN40) or 22 (QFN32) programmable GPIOs, with support for SPI, UART, I2C, I2S, RMT, TWAI, PWM, SDIO, Motor Control PWM. It also packs a 12-bit ADC and a temperature sensor.
Neopixel on-board is pin 48.
FEATURES
Wi-Fi 6 Support
ESP32-C6 has integrated 2.4 GHz Wi-Fi 6 (802.11ax) radio, and also supports the 802.11b/g/n standard for backward compatibility. ESP32-C6 supports the OFDMA mechanism for both uplink and downlink communications, while also supporting MU-MIMO for downlink traffic. Both of these techniques allow working with high efficiency and low latency, even in congested wireless environments. Additionally, the Target Wake Time (TWT) feature of the 802.11ax standard enables ESP32-C6 customers to build battery-operated connected devices that can last for years, while staying connected throughout.
Enhanced Connectivity
ESP32-C6 combines 2.4 GHz Wi-Fi (802.11 b/g/n/ax), Bluetooth 5 (LE), and IEEE 802.15.4 radio connectivity, which is vital for making the Thread and Zigbee protocols available in a variety of cases of application development. ESP32-C6 supports a 20 MHz bandwidth for the 802.11ax mode and a 20/40 MHz bandwidth for the 802.11b/g/n mode. It brings in Wi-Fi 6 features, such as transmission efficiency and low power consumption, which provide concrete benefits for IoT devices. Additionally, Bluetooth 5 (LE) supports long-range operation through advertising extensions and coded PHY. It also supports 2 Mbps of high throughput PHY.
Enabling Matter
ESP32-C6’s support for IEEE 802.15.4 and Wi-Fi radios, along with Bluetooth 5 (LE) connectivity, enable customers to build Matter-compliant Wi-Fi end-point devices and Thread end-point devices, thus achieving interoperability in smart-home devices from multiple brands. ESP32-C6 combined with another Espressif SoC can be used to develop various other Matter-ecosystem solutions, such as Matter Gateways, Thread Border Routers or Zigbee Matter Bridges.
Security
ESP32-C6 comes with RSA-3072-based secure boot, AES-128/256-XTS-based flash encryption, digital signature and an HMAC peripheral for identity protection, as well as cryptographic accelerators for improved performance. The Trusted Execution Environment (TEE) enables privilege separation when accessing different chip features and, therefore, provides a secure software separation. These features ensure the desired level of security for devices built with ESP32-C6.
Software Availability
ESP32-C6 is supported through Espressif’s open-source ESP-IDF, so that our customers can benefit from their familiarity with our field-proven platform that already powers millions of connected devices. For customers who would like to use ESP32-C6 as a communications co-processor with an external host, ESP-Hosted and ESP-AT firmware can also be available. ESP32-C6 will also be supported through ESP RainMaker®, a complete system for building AIoT products.
TECHNICAL DETAILS
HPRISC-V processor:
- Clock speed: up to 160 MHz
- Four stage pipeline
- CoreMark® score: 464.36
- CoreMark；2.90 CoreMark/MHz (160 MHz)
LPRISC-V processor:
- Clock speed: up to 20 MHz
- Twostage pipeline
- L1 cache: 32 KB
- ROM:320 KB
- HPSRAM: 512 KB
- LPSRAM: 16 KB
- Supported SPI protocols: SPI, Dual SPI, Quad SPI, QPI interfaces that allow connection to flash and other SPI devices off the chip’s package
- Flash controller with cache is supported
- Flash in-Circuit Programming (ICP) is supported
- 4MB embedded flash
WiFi
- 1T1R in 2.4 GHz band
- Operating frequency: 2412 ~ 2484 MHz
- IEEE 802.11ax-compliant
- 20MHz-only non-AP mode
- MCS0~MCS9
- Uplink and downlink OFDMA, especially suitable for simultaneous connections in high-density environments
- Downlink MU-MIMO (multi-user, multiple input, multiple output) to increase network capacity
- Beamformee that improves signal quality
- Channel quality indication (CQI)
- DCM(dual carrier modulation) to improve link robustness
- Spatial reuse to maximize parallel transmissions
- Target wake time (TWT) that optimizes power saving mechanisms
- Fully compatible with IEEE 802.11b/g/n protocol
- 20MHzand40MHzbandwidth
- 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)
- Four virtual Wi-Fi interfaces
- Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode
- Antenna diversity
- 802.11mc FTM
Bluetooth
- Bluetooth LE: Bluetooth 5.3 certified
- Bluetooth mesh
- High power mode (20 dBm)
- Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
- Advertising extensions
- Multiple advertisement sets
- Channel selection algorithm #2
- LEpower control
- Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna
Advanced Peripheral Interfaces
- 30GPIOs (QFN40), or 22 GPIOs (QFN32)
- 5strapping GPIOs
- 6GPIOs needed for in-package flash
- Analog interfaces:
- 12-bit SAR ADC, up to 7 channels
- Temperature sensor
- Digital interfaces:
- Two UARTs
- Low-power (LP) UART
- Two SPI ports for communication with flash
- General purpose SPI port
- I2C
- Low-power (LP) I2C
- I2S
- Pulse count controller
- USB Serial/JTAG controller
- Two TWAI® controllers, compatible with ISO 11898-1 (CAN Specification 2.0)
- SDIO 2.0 slave controller
- LED PWM controller, up to 6 channels
- Motor Control PWM (MCPWM)
- Remote control peripheral (TX/RX)
- Parallel IO interface (PARLIO)
- General DMA controller, with 3 transmit channels and 3 receive channels
- Event task matrix (ETM)
- Timers:
- 52-bit system timer
- Two 54-bit general-purpose timers
- Three digital watchdog timers
- Analog watchdog timer
Low Power Management
- Fine-resolution power control through a selection of clock frequency, duty cycle, Wi-Fi operating modes, and individual power control of internal components
- Four power modes designed for typical scenarios: Active, Modem-sleep, Light-sleep, Deep-sleep
- Power consumption in Deep-sleep mode is 7 µA
- Low-power (LP) memory remains powered on in Deep-sleep mode
Security
- Secure boot- permission control on accessing internal and external memory
- Flash encryption- memory encryption and decryption
- 4096-bit OTP, up to 1792 bits for users
- Trusted execution environment (TEE) controller and access permission management (APM)
- Cryptographic hardware acceleration:
- AES-128/256 (FIPS PUB 197)
- ECC
- HMAC
- RSA
- SHA(FIPS PUB 180-4)
- Digital signature
- External Memory Encryption and Decryption (XTS_AES)
- Random Number Generator (RNG)
SHIPPING LIST
- 1x WiFi Bluetooth Module ESP32-C6 4MB Flash