Features
Wi-Fi
• IEEE 802.11b/g/n-compliant
• Supports 20 MHz, 40 MHz bandwidth in 2.4 GHz band
• 1T1R mode with 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
Note that when ESP32-C3 scans in Station mode, the SoftAP channel will change along with the Station
channel
• Antenna diversity
• 802.11mc FTM
Bluetooth®
• Bluetooth LE: Bluetooth 5, 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
• Internal co-existence mechanism between Wi-Fi and Bluetooth to share the same antenna
CPU and Memory
• 32-bit RISC-V single-core processor, up to 160 MHz
• CoreMark® score:
– 1 core at 160 MHz: 407.22 CoreMark; 2.55 CoreMark/MHz
• 384 KB ROM
• 400 KB SRAM (16 KB for cache)
• 8 KB SRAM in RTC
• In-package flash (see details in Chapter 1 ESP32-C3 Series Comparison)
• SPI, Dual SPI, Quad SPI, and QPI interfaces that allow connection to multiple off-package flash
• Access to flash accelerated by cache
• Supports flash in-Circuit Programming (ICP)