CPU and Flexible IO

RISC-V 32bit High performance CPU with DSP instruction;

Maximum 120MHz operating frequency; 

128k bytes SRAM; 

Program memory: internal 2M bit flash; 

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

Support GPIO wakeup or interrupt;

Bluetooth Radio

BLE supports the transmission rate of 1Mbps and ±250KHz deviation; 

BLE output power ranges from -27dBm to 12dBm; 

BLE Receive Sensitivity with -86dBm in typical;

Audio Interface

Support flexible audio EQ adjust; 

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

One channel MIC amplifier input; 

High performance mono audio ADC with 90dB SNR;

Package

QFN20;

Temperature

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