BL706C-22-Q2I
Bouffalo Lab · BL702/BL704/BL706 Series
In production
32 bit · RV32IMAFC
Max clock
144MHz
SRAM
132KB
On-chip Flash
2048KB
Active current
—
Sleep current
—
Supply voltage
1.8–3.63V
Overview
BL706C-22-Q2I is a Bouffalo Lab-bit RISC-V MCU from 32, built on the SiFive SiFive E24 core (RV32IMAFC), with a maximum clock of 144 MHz, 132 KB of on-chip SRAM, and 2048 KB KB of Flash.
Core and memory
| Vendor | Bouffalo Lab（Chinese mainland） |
|---|---|
| IP brand / origin | SiFive（United States） |
| Core | SiFive E24 |
| ISA / bit width | RV32IMAFC · 32 bit |
| Max clock | 144 MHz |
| SRAM | 132 KB + PSRAM 2048 KB |
| On-chip Flash | 2048 KB |
| OTP | 0.125 KB |
| Cache | 16 KB |
Power and electrical
Active current
—
Sleep current
—
Standby / shutdown
—
Conditions and notes: The vendor or source notes are in Chinese in the original 数据手册未给 Run/Deep-sleep 电流；RF：RX 3.5mA、TX 45mA。
| Supply voltage | 1.8–3.63 V |
|---|---|
| Operating temperature | -40 ℃ ~ 85 ℃ |
Peripherals and interfaces
| UART / USART | 2 way |
|---|---|
| SPI | 1 way |
| I²C | 1 way |
| USB Full-Speed | 1 way |
| Ethernet | 1 way |
| BLE | 1 way |
| I²S | 1 way |
| Camera interface | 1 way |
| DMA | 8 way |
| ADC | 12 channels · 12 bit |
| DAC | 2 channels |
| PWM | 5 channels |
| Other | The vendor or source notes are in Chinese in the original 802.15.4/Zigbee/Thread，Ethernet RMII，Camera，IR，QDEC，KeyScan，31 GPIO |
Sources and notes
Confidence:High (official datasheet) · Last verified 2026-11-04
The vendor or source notes are in Chinese in the original BLE 5.0 + 802.15.4，QFN48，31 GPIO；16Mb Flash + 16Mb pSRAM SiP；以太网 RMII 与摄像头接口；132KB RAM/192KB ROM。