• Run up to 144 MHz，180 DMIPS 

• Up to 512 Kbyte embeded Flash memory

• 32-bit ARM Cortex-M4 + FPU，single-cycle hardware multiplication and division instruction, support DSP instruction and MPU

• 144 Kbyte in chip SRAM

• High performance analog interface

• Support up to 36 GPIOs，most of which support voltage of 5 V

• 2 x DMA controller, each controller support 8 channels, channel source adddress and destination address can be arbitrarily configurable 

• 1 x RTC real-time clock, support leap year perpetual calendar, alarm event, periodic wake up, support internal and external clock calibration

• 96-bit UID and 128-bit UCID

• Data rate： 0.1 – 1000 kbps

• Sensitivity：2 FSK, -122 dBm DR= 2.4 kbps, 433.92 MHz 

• RX current： 9.6 mA (DCDC)@ 433.92 MHz, FSK

        （only for RF working current）

• TX current：30 mA @ 13 dBm, 433.92 MHz, FSK

• 82 mA@ 20 dBm, 433.92 MHz, FSK

• Working voltage：1.8 – 3.6 V 

• Working temperature：- 40 – 85 ℃

• Package: QFN 68 7x7