nPower management
Always-On (AON) supply: 1.7~ 5.5V
Main supply: 1.3 ~ 5.5V supporting external DCDC through a dedicated wakeup pin
Integrated LDOs requiring no external decoupling capacitors
3.3V 40 mA capless LDO
1.3 μA in sleep mode (wake on RTC, no RAM retention)
2 μA in sleep mode (wake on RTC, 4 KB RAM
retention)
nClock generation
Dedicated PLL to support 16M/24M/26M/32M crystals
Crystal trimming
40 MHz RC oscillator for fast wakeup
Low jitter low power 32 KHz RC oscillator
n10-channel 10-bit ADC
nDigital peripherals
Up to 20 GPIOs w/ functions fully multiplexed
Two-wire master (I2C compatible) up to 600 kbps
2 x UART(RTS/CTS) with HCI-H5 protocol up to 3.25 Mbps
2 x SPI Master/Slave up to 24 Mbps
1-axis Quadrature Decoder
12 Mbps Full Speed USB 2.0
nTemperature range: -40°C to +110°C