Features
• Wireless
– 2.4 GHz RF transceiver
– Bluetooth® Specification v5.0
– Bluetooth® Low Energy 1Mbps and 2Mbps
– Bluetooth® Long Range Coded 500Kbps
and 125Kbps
– Zigbee 3.0, Base Device Behavior, Core Stack
R21, Green Power
– IEEE 802.15.4 MAC/PHY
– Support BLE/zigbee coexistence
– Integrated balun, PA/LNA
• MCU Subsystem
– 32-bit RISC CPU with FPU
– Level-1 cache
– One RTC timer update to one year
– Two 32-bit general purpose timers
– Eight DMA channels
– CPU frequency configurable from 1MHz to
144MHz
– JTAG development support
– XIP QSPI Flash/pSRAM with hardware encryption
support
• Memory
– 132KB RAM
– 192KB ROM
– 1Kb eFuse
– Embedded Flash (optional)
– Embedded pSRAM (BL704/BL706,optional)
Security
– Secure boot
– Secure debug ports
– QSPI Flash On-The-Fly AES Decryption (OTFAD)
- AES-128, CTR+ mode
– Support AES 128/192/256 bits
– Support MD5, SHA-1/224/256/384/512
– Support TRNG (True Random Number Generator)
– Support PKA (Public Key Accelerator)
Peripheral
– USB2.0 FS (Full-Speed) device interface
– IR remote control interface
– One SPI master/slave
– Two UARTs
Support ISO 17987(Local Interconnect Network)
– One I2C master
– One I2S master/slave
– Five PWM channels
– Quadrature decoder
– Key-Scan-Matrix interface
– 12-bit general ADC
– 10-bit general DAC
– PIR (Passive Infra-Red) detection
– Ethernet RMII interface(BL704/BL706)
– Camera interface(BL706)
– 15(BL702)/23(BL704)/31(BL706) Flexible GPIOs
(flexible)
Power Management
– Active CPU
– Idle
– Power Down Sleep (flexible)
– Hibernate
– Off
– Active Rx
– Active Tx
• Clock
– External main clock XTAL 32MHz
– External low power consumption and the RTC
clock XTAL 32/32.768kHz
– Internal RC 32kHz oscillator
– Internal RC 32MHz oscillator
– Internal System PLL
– Internal Audio PLL