Overview

Features

Features
• Bluetooth 5.4 Dual Mode and proprietary 2.4 GHz protocol
• Around 5 mA full operation current
• Around 1 μA deep sleep current with low power running timer
• Bluetooth Angle of Arrival (AoA) and Angle of Departure (AoD)

• Antenna array with maximum 16 antennas for precise positioning

• Classic Bluetooth 1 Mbps
• Proprietary 2.4 GHz 250 kbps, 1 Mbps and 2 Mbps
• High output power up to 10 dBm and Bluetooth LE Power Control
• 32-bit RISC Core with 80 KB data memory and up to 80 MHz speed
• SiP Flash: 512 KB or 1 MB
• 32-byte eFUSE
• Operating voltage: 0.9 ~ 1.5 V (boost), 2.0 ~ 3.6 V (buck)

Clock
• 16 MHz crystal reference clock with internal tuning load capacitance
• 64 MHz digital PLL clock
• 32 kHz ring oscillator
• External 32 kHz crystal oscillator
• MCU can run with any clock source with internal frequency divider
• Dedicated audio PLL clock for I2S main clock
• Interface and peripheral units
• Quad IO FLASH programming
• I2C interface
• High-speed SPI interface up to 32 MHz
• Two UART interfaces, one with UART download support

Interfaces and peripherals

• Quad IO FLASH programming

• I2C interface

• High-speed SPI interface up to 32 MHz

• Two UART interfaces, one supports UART download

• Multi-channel high-resolution 32-bit PWM with capture mode

• USB host and device interface with USB audio capabilities

• On-chip high-precision temperature sensor

• On-chip 10-bit general-purpose ADC

• GPIO with multiplexing interface function

• True Random Number Generator (TRNG)

• AES 128-bit hardware accelerator

• I2S/PCM digital audio interface, master-slave mode

• High-quality, high-speed, low-power clock output

• Code encryption and online decryption

• Secure JTAG and system protection

Typical package types

• 32-pin QFN 4 mm x 4 mm

• 40-pin QFN 5 mm x 5 mm

• 48-pin QFN 6 mm x 6 mm