Hefei Lianrui Bluetooth Low Energy SoC Chip RF04

RF：

• Working frequency band: 2.4~2.5GHz

• 1Mbps mode receiving sensitivity: -93 dBm

• 2Mbps mode receiving sensitivity: -90 dBm

• RF output power: -20dBm~ +8dBm

• 50dB RSSI dynamic range

• When the ideal DCDC converter is at 4.3V, the receiving current is 3.4mA and the transmitting current is 3.5mA.

• When the DCDC converter is at 4.3V, the receiving current is 4.3mA and the transmitting current is 4.4mA.

• When the DCDC converter is at 3.3V, the receiving current is 5.5mA and the transmitting current is 5.6mA.

Clock and multiplier：

• 32MHz crystal and RC oscillator

• 32KHz crystal and RC oscillator

• Support 96MHz/80MHz/64MHz/48MHz/32MHz/16MHz clock output

Analog interface：

• 2-channel 10-bit ADC

• Battery monitoring range: 2.0V~5.0V

• Temperature sensor range: -40℃~85℃

Digital interface：

• 14 GPIOs

• 5 channels of PWM output

• IO state retention during deep sleep

• 1-way SPI host: rate up to 24Mbps

• 1 SPI slave: rate up to 8Mbps

• 2-way UART: flow control rate up to 1Mbps, supports all baud rates below 1Mbps, supports infrared

• 2-way I2C: master or slave, maximum speed 1Mbps

• 2-way timer and 1-way watchdog

Built-in MCU：

• 4-way buffer

• SWD debugging interface

• AHB/APB bus clock rate up to 96MHz

Ultra-low power consumption：

• Sleep current 2.5uA~6uA: SRAM (16~208KB) can be customized

• 1.28 seconds broadcast current: 20uA

Storage unit：

• 208 KB SRAM configurable, each 32KB can be configured independently

• 128 KB ROM (boot ROM and BLE protocol stack)

• Reserve 32KB of swap memory for BLE connection data

Power management：

• Integrated DCDC buck converter

• 2.3~5.0V voltage input

• 1.8V LDO with 40mA output

• 2 LDOs with outputs of 50mA and 25mA respectively

• Working temperature: -25℃~85℃

Encryption engine：

• ECC
• AES-128

Package：

• QFN 40 pins 5mm X 5mm