特性 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