CPU and Flexible IO

32bit High performance CPU with DSP instruction; 

Program memory: internal 2M bit flash; 

Flexible GPIO pins with Programmable pull-up and pull-down resistors; 

Support GPIO wakeup or interrupt;

Bluetooth Radio

Compliant to Bluetooth 5.4; 

TX output power +8dBm in MAX; 

RX Sensitivity with -93dBm @EDR;

Audio Interface

Audio codec with 16bit mono DAC and 16bit mono ADC; 

Support flexible audio EQ adjust; 

Support Sample rate 8, 11.025, 12, 16, 22.05, 32, 44.1 and 48KHz; 

Mono MIC amplifier input; 

High performance mono audio ADC with 91dB SNR; 

High performance mono audio DAC with 97dB SNR, with headphone amplifier output;

Package

QFN20;

Temperature

Operating temperature: -40℃ to +85℃;
Storage temperature: -65℃ to +150℃;