Features
Low power consumption of 2.4GHz ISM band, GFSK rf transceiver
1Mbps/250Kbps data rate
SPI interface
Comply with international standards such as FCC/ETSI
Proximity mode for environments with specific security requirements
32MHz cortex-m0 32-bit CPU platform
32K byte Flash, with write protection function
4K bytes of RAM with parity check to enhance system stability
Clock, crystal vibration
Internal high-speed clock 4M, 8M, 16M, 22M, 24MHz
Internal low speed clock 32.8K / 38.4KHz
Timer/counter
3 universal 16-bit timer/counter
16-bit timer/counter could work under the low power consumption mode
3 high performance 16 bit timer/counter, support PWM complementary, dead zone protection function
1 programmable 16 bit timer/counter, support capture comparison, PWM output
A 20 bit programmable counting watchdog circuit, built specifically for ultra-low power rc-osc to provide WDT counting
Communication interface
UART0-UART1 standard communication interface
LPUART supports ultra-low power UART using low speed clocks
SPI standard communication interface
I2C standard communication interface
12 bit 1Msps sampling high speed and high precision SARADC, with built-in operational amplifier, can measure external weak signal
Voltage comparator VC
Working voltage: 1.9~ 3.6v
Applications
Remote controls
Wireless keyboards and mice
Proprietary Wireless Networks
Home automation
Commercial and industrial short-range wireless
Wireless voice, VoIP, Cordless headsets
Robotics and machine connectivity