Bluetooth BLE5.0

Supports 125Kbps/500Kbps/1Mbps/2Mbps

Receive sensitivity: -99.7dBm @1Mbps; -97dBm @2Mbps; -105dBm @125kbps

Transmit power: +12dBm (Maximum)

Link gain: 117dB @125kbps (Maximum)

Supports Single-Ended Antenna Output

Bluetooth MESH

Supports Bluetooth SIG Mesh

Supports Private MESH

MCU Core

32-bit CPU core

Maximum frequency up to 64MHz

Maximum 64kB Data SRAM storage

Maximum 512kB Data Flash storage

Supports Two-Wire Debug Protocol

System Power Consumption

RX mode: 4.5mA @3.3V

TX mode: 4.3mA @3.3V 0dBm

Deep Sleep mode: 1.1uA (RTC wake-up + GPIO wake-up)

ShutDown mode: 700nA (GPIO wake-up)

Power Supply & Reset

Main power domain (VDD33)

Operating voltage range: 1.8V ≤ VDD33 ≤ 3.6V

POR (Power-On Reset), BOR (Brown-Out Reset), LVD (Low-Voltage Detect)

Clock

External high-speed crystal oscillator: 16 MHz

Internal high-speed RC oscillator: 24 MHz

External low-speed crystal oscillator: 32.768 KHz

Internal low-speed RC oscillator: 32.768 KHz

System Peripherals

DMA: Supports 8 multiplexed channels

Watchdog timers: IWDG (Independent Watchdog) and WWDG (Window Watchdog)

Peripheral Interconnection System (PIS)

System Tick Timer

Security & Arithmetic Acceleration Unit

ECC (Elliptic Curve Cryptography) (256-bit)

AES (Advanced Encryption Standard) (256/192/128-bit)

T-DES/Triple-DES (192/128/64-bit)

True Random Number Generator (TRNG)

Arithmetic Accelerator (CALC)

Timers

1 Advanced 16-bit Timer (ADTIM): Supports 4 groups of PWM, 3 of which support dead-time complementary output

1 General-purpose 32-bit Timer A (GPTIMA): Supports 4 channels of PWM

1 General-purpose 16-bit Timer B (GPTIMB): Supports 4 channels of PWM

1 General-purpose 16-bit Timer C (GPTIMC): Supports 2 groups of PWM, 1 of which supports dead-time complementary output

1 Basic Timer (BSTIM)

1 Low-Power Timer (LPTIM)

Real-Time Clock (RTC)

Supports high-precision hardware temperature compensation

Analog-to-Digital Converter (ADC)

12-bit high-precision SAR ADC

Supports up to 9 external channels

Supports 3 internal channels:

Built-in temperature sensor

1/8, 1/4, 1/2, 3/8 of VDD

Internal 1.4V reference

Communication Interfaces

2 I2C interfaces (supports bus arbitration)

2 SPI interfaces

3 UART interfaces (can support ISO7816, LIN, IrDA, etc.)

Audio Interfaces

2 PDM interfaces (supports digital MIC)

1 I2S interface