High performance 32-bit RISC CPU
DC-160MHz operation
With 16k read only cache
64Vectored interrupts
8 Levels interrupt priority
Coprocessor with mathematic instructions
Flexible I/O
14 GPIO pins
All GPIO pins can be programmable as input or output individually
All GPIO pins are internal pull-up/pull-down selectable individually
CMOS/TTL level Schmitt triggered input
External wake up/interrupt on all GPIOs in all working conditions
Long press reset on all GPIOs
Peripheral Feature
One full speed USB 2.0 OTG controller
Hardware universal algorithm accelerator for FFT and AEC
Four multi-function 16-bit timers, support capture and PWM mode
Three 16-bit PWM generator for motor driving with automatic stop protection
One full-duplex basic UART
Two full-duplex advanced UART with DMA
One IIC interface supports host and device mode
One Quadrate decoder
One LED light controller
Watchdog
One 12/24Mhz Crystal Oscillator
Hardware Audio algorithm accelerator
16-bit Stereo DAC with headphone amplifier, SNR >= 96dB
1 channels ADC , SNR >= 90dB
1 channel MIC amplifier
3 channels analog MUX
11 channels 10-bit ADC
2 channels 8 levels Low Voltage Detector
Power-on reset
Embedded PMU support low power mode
Integrated Li-ion battery charger,up to supports 200mA fast charging
Communication with TWS headset charging case
Bluetooth Feature
CMOS single-chip fully-integrated radio and baseband
Bluetooth V5.0+BR+EDR+BLE specification
Bluetooth Piconet and Scatternet support
Meet class2 and class3 transmitting power requirement
Support 1M GFSK2M GFSKS2 CODES8 CODEπ/4 DQPSK all paket types
Provides +4dbm transmitting power
receiver with -90dBm sensitivity
Support a2dpavctpavdtpavrcphfpsppsmpattgapgatt fcommsdpl2cap profile
Power Supply
VBAT is 2.2V to 4.2V
VDDIO is 2.2V to 3.6V
Package
QFN32_4x4
Temperature
Operating temperature range: -40℃ to +80℃