BL602/BL604 
WLAN NIC
WLAN NIC
BL602 is a chipset with integrated 2.4G Wi-Fi + BLE 5.0, suitable for low power consumption and high performance application development.
The wireless subsystem supports 2.4G radio, Wi-Fi 802.11b/g/n and BLE 5.0 baseband/MAC design.
The microcontroller subsystem is powered by a 32-bit RISC CPU clocked at up to 192MHz.
Built-in 276KB RAM, 128KB ROM, 1Kb eFuse and configurable embedded Flash. In addition, a variety of security features are supported.
Peripheral interfaces include SDIO, SPI, UART, I2C, IR remote, PWM, ADC, DAC, PIR and GPIO, etc.
| CPU | 32-bit RISC-V CPU |
|---|---|
| RAM | 276KB RAM, 128KB ROM, 1Kb eFuse and Configurable Embedded Flash Flash |
| Cache | 32KB L1 Cache |
| Performance | 1.46 DMIPS / MHz |
| Efficiency | 3.1 CoreMark / MHz |
| Security function | ■ Secure Boot with support for images signed with ECC-256 ■Secure debug port ■QSPI/SPI Flash instant AES decryption (OTFAD), AES128 CTR mode ■AES 128/192/256 bit encryption engine ■SHA-1/224/256 ■True Random Number Generator (TRNG) ■Public Key Accelerator (PKA), supports basic operations of large numbers, and the software provides application programming interfaces such as signature and verification |
| Security hardware | TrustZone |
| Wireless protocol support | IEEE 802.11 b/g/n, Bluetooth 5.0 low energy, Bluetooth Mesh |
| Wireless data rate | MAX WLAN TX/RX MCS7 ；MAX BLE TX/RX 1Mbps |
| TX power | 0-15 dBm |
| RX sensitivity | Bluetooth Low Energy: Typical: -97 dBm at 1Mbps; Maximum: -92 dBm at 1Mbps |
| RF power consumption at 3v DC/DC | BLE RX MIN: 31 mA BLE TX MAX: 133 mA WLAN RX MIN: 39 mA WLAN TX MAX: 310 mA |
BL_IOT_SDK has undergone rigorous application test and has been successfully applied to tens of millions of IoT devices. Based on its mature and clear software architecture, complete API and easy-to-use tools, developers will be easier to build wireless interconnection applications of chips. Using BL_IOT_SDK can help you quickly develop related applications focusing on wireless interconnection, obtain compact code, save development time, and speed up product launch.
Having been validated across hundreds of products and harsh environments, Bouffalo SDK has grown into an enterprise‑grade cornerstone of reliability. It is widely recognized by device manufacturers, module vendors, and cloud platforms. The API remains backward compatible over the long term, and iteration is both cautious and stable. With complete security and driver components, it ensures a smooth journey from development to mass production. Choose the extensively proven Bouffalo SDK to escort your product success.
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