KEY FEATURES

BL702/BL704/BL706 is highly integrated BLE and Zigbee combo chipset for IoT applications.

Wireless subsystem contains 2.4G radio, BLE+Zigbee baseband and MAC designs. Microcontroller subsystem contains 32-bit RISC-V CPU, high-speed cache and memories. Power Management Unit controls ultra-low-power modes. Moreover, variety of security features are supported.

Peripheral interfaces include USB2.0, IR-remote, Ethernet, SPI, UART, LIN, I2C, I2S, PWM, QDEC, KeyScan, ADC, DAC, ACOMP, PIR, etc.

Flexible GPIO configurations are supported. BL702 has 15 GPIOs, BL704 has 23 GPIOs, and BL706 has 31 GPIOs.

 

 

 

 

 

APPLICATIONS

Wireless (Tier-1 RF Performance)

  • Bluetooth® Specification v5.0
  • Bluetooth® Low Energy 1 and 2Mbps
  • Bluetooth® Long Range 500/125Kbps
  • Zigbee 3.0 / IEEE 802.15.4
  • Support Wi-Fi/Bluetooth/Zigbee coexistence
  • 2.4 GHz RF transceiver
  • Integrated RF balun, PA/LNA

 

 

Microcontroller 

  • 32-bit RISC CPU with FPU
  • L1 cache
  • RTC timer up to One year
  • 64b and 32b general purpose timers
  • Eight DMA channels
  • Dynamic-Frequency from 1MHz to 144MHz
  • JTAG development support
  • XIP QSPI Flash support
  • XIP QSPI pSRAM support

 

 

Memory

  • 132KB RAM
  • 192KB ROM
  • 1Kb eFuse
  • Embedded Flash (Optional)
  • Embedded pSRAM (Optional)

 

 

Security (Complete Security features)

  • Secure boot ; Secure debug
  • XIP QSPI On-The-Fly AES Decryption (OTFAD)
  • AES 128/192/256
  • MD5, SHA-1/224/256
  • TRNG (True Random Number Generator)
  • PKA (Public Key Accelerator)

 

 

 

 

 

 

Peripherals

  • USB2.0 FS device interface
  • IR remote control interface
  • Ethernet RMII interface
  • SPI master/slave
  • Two UART/LIN-bus
  • I2C master
  • I2S master/slave
  • Five PWM channels
  • Quadrature decoder
  • Key-Scan interface
  • 12-bit general ADC
  • 10-bit general DAC
  • PIR (Passive Infra-Red) detection
  • 15 (BL702) or 23 (BL704) or 31 (BL706) GPIOs

 

 

Power (Ultra-low Power modes)

  • Off
  • Hibernate (RTC/GPIO wakeup)
  • Power Down Sleep (Flexible retention)
  • Active

 

 

Clock

  • Support XTAL 32MHz
  • Support XTAL 32/32.768KHz
  • Internal RC 32KHz & 32MHz oscillator
  • Internal System PLL & Audio PLL

 

Package Type

  • QFN32 (BL702)
  • QFN40 (BL704)
  • QFN48 (BL706)

 

 

 

 

 

 

 

 

 

 

 

 

  • Low-power IoT applications
  • BLE connection
  • Zigbee connection
  • Home electronics
  • Remote control

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