CPU and Flexible IO 

32bit High performance CPU with DSP instruction Program memory: internal 4M bit flash Flexible GPIO pins with Programmable pull-up and pull-down resistors; Support GPIO wakeup or interrupt; 

Bluetooth Radio

Compliant to Bluetooth 5.0 ; TX output power +2dBm in typical; RX Sensitivity with -90.5dBm @Basic Rate; 

FM Tuner S

upport frequency band 76~108MHz; Auto search tuning; Programable de-emphasis(50/75uS); Receive signal strength indicator (RSSI); 

Audio Interface 

Audio codec with 16bit stereo 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; 4 channel Analog MUX; One channel MIC amplifier input; High performance mono audio ADC with 90dB SNR; High performance audio DAC with 96dB SNR, with headphone amplifier output; 

Peripheral and Interfaces 

Three 32-bit timers; Three multi-function 32-bit timers, support Capture and PWM mode; WatchDog; Three full-duplex UART; SPI; IR controller; SD Card Host controller; Full speed USB 2.0 HOST/DEVICE controller; Sixteen Channels 10-bit SARADC; Build in PMU, such as LDO; 

Package QFN32L; 

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