System
Arm® Cortex®-M0+ - Operating frequency: 72 MHz
- 5-channel DMA
Memory
Flash: 64 KB - SRAM: 8 KB
Power Management
Operating voltage: 2.0~3.6 V - Supports POR/PDR
Timers
16-bit Advanced Timer: 1 - 16-bit General-purpose Timers: 5
- 16-bit Basic Timer: 1
- Watchdog Timers: 2
- 24-bit SysTick: 1
Analog Peripherals
12-bit ADC: 1 - External channels: 16
I/Os
Up to 55 I/Os - All I/Os can be mapped to external interrupt vectors
Communication Peripherals
USART: 2 - I2C: 2, supporting up to 1 Mbit/s
- SPI: 2, supporting up to 6 Mbit/s
Security
96-bit unique device ID
