Datasheet

1 Module Overview
1 Module Overview
1.1 Features
MCU
• ESP32-C3 embedded, 32-bit RISC-V single-core
processor, up to 160 MHz
• 384 KB ROM
• 400 KB SRAM (16 KB for cache)
• 8 KB SRAM in RTC
WiFi
• IEEE 802.11 b/g/n-compliant
• Center frequency range of operating channel:
2412 ~ 2484 MHz
• 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)
• 4 × 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 family 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
• Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps
• Advertising extensions
• Multiple advertisement sets
• Channel selection algorithm #2
Hardware
• Interfaces: GPIO, SPI, UART, I2C, I2S, remote
control peripheral, LED PWM controller, general
DMA controller, TWAI
®
controller (compatible with
ISO 11898-1), USB Serial/JTAG controller, tem-
perature sensor, SAR ADC
• 40 MHz crystal oscillator
• 4 MB SPI flash
• Operating voltage/Power supply: 3.0 ~ 3.6 V
• Operating ambient temperature:
– 85 °C version module: –40 ~ 85 °C
– 105 °C version module: –40 ~ 105 °C
• Dimensions: See Table 1
Test
• HTOL/HTSL/uHAST/TCT/ESD/Latch-up
1.2 Description
ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02U are two general-purpose Wi-Fi and Bluetooth LE module.
The rich set of peripherals and high performance make the two modules an ideal choice for smart homes, industrial
automation, health care, consumer electronics, etc.
ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02U both feature a 4 MB external SPI flash. ESP32-C3-WROOM-
Espressif Systems 3
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ESP32-C3-WROOM-02 & WROOM-02U Datasheet v0.7