CPU and Flexible IO

High performance 32bit RISC-V processor Core with DSP instruction 

RISC-V typical speed: 125MHz 

Program memory: internal OTP; 

Internal 113KB RAM for data and program 

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

Support GPIO wakeup or interrupt;

Bluetooth Radio

Compliant to Bluetooth 5.4(QDID: 215269);

TX output power +9dBm in MAX; 

RX Sensitivity with -91.7 @ Basic Rate; 

RX Sensitivity with -94.2 @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 94dB SNR; 

High performance mono audio DAC with 102dB SNR, with headphone amplifier output;

Package

QFN20;

Temperature

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