Key Features
* ARM? Cortex?-M0 32-bit processor with SWD
* Memory
* 512KB in-system flash memory
* 64KB SRAM, all programmable retention insleep mode
* 4-way instruction cache with 8KB CacheRAM
* 96KB ROM
* 256bit efuse ? 22 general purpose I/O pins
* GPIO status retention in off/sleep mode
* configurable as serial interface and programmable IO MUX function mapping
* All pins can be configured for wake-up
* All pins for triggering interrupt
* 3 quadrature decoder(QDEC)
* 6-channel PWM
* 2-channel PDM/I2C/SPI/UART
* 4-channel DMA
* DMIC/AMIC with microphone bias
* 8-channel 12bit ADC with low noise voice PGA
* 6-channel 24bit timer, one watchdog timer
* Real timer counter (RTC)
* Power, clock, reset controller
* Flexible power management
* Operating Voltage range 1.8V to 3.6V
* Embedded buck DC-DC and LDOs
* Battery monitor ? Power consumption
* 0.3μA @ OFF Mode(IO wake up only)
* 1μA @ Sleep Mode with 32KHz RTC
* 4uA @ Sleep Mode with 32KHz RTC and all SRAM retention
* Receive mode: 4mA @3.3V power supply
* Transmit mode: 4.7mA(0dBm output power)@3.3V power supply
* MCU: <60uA/MHz ? RC oscillator hardware calibrations
* Internal High/Low frequency RC osc
* 32KHz RC osc for RTC with +/-500ppm accuracy
* 32MHz RC osc for HCLK with 3% accuracy ? High Speed Throughput
* Support BLE 2Mbps Protocol
* Support Data Length Extension
* Throughput up to 1.6Mbps(DLE+2Mbps) ? BLE 5.2 feature ? AoA/AoD Direction Finding ? Support SIG-Mesh Multi-Feature
* Friend Node
* Low Power Node
* Proxy Node
* Relay Node ? 2.4 GHz transceiver
* Compliant to Bluetooth 5.2
* Sensitivity:
-97dBm@BLE 1Mbps data rate
-103dBm@BLE 125Kbps data rate
* TX Power -20 to +10dBm in 3dB steps
* Single-pin antenna: no RF matching or RX/TX switching required
* RSSI (1dB resolution)
* Antenna array and optional off-chip RF PA/LNA control interface ? AES-128 encryption hardware ? Link layer hardware
* Automatic packet assembly
* Automatic packet detection and validation
*Auto Re-transmit
* Auto ACK
* Hardware Address Matching
* Random number generator ? Operating temperature: -40 ℃~125℃ ? RoHS Package: QFN32(4mm x 4mm) ? Applications: wearables, beacons, home and building,health and medical, industrial and manufacturing,retail and payment, data transmission, PC/mobile/TV peripherals, internet of things (IoT)