FEATURES
● Core
– ARM®32-bit Cortex®-M0 MCU
–Frequency up 80MHz
–System performance score 0.846 DMIPS/ MHz（Dhrystone 2.1）
● Memories
– 64K bytes Flash
– 8K bytes SRAM
● Reset and power management
–Digital and I/O supply：VDDH=2.0 ~ 5.5V
–Analog supply：VDDA=2.4~5.5V
-Power-on/Power-down reset (POR/PDR)
–Programmable Brownout reset (BOR)
-Low voltage detection (LVD)
–Low power modes：SLEEP、STOP0、 STOP1、STANDBY and SHUTDOWN
● Clock management
–External 4 ~ 32MHz crystal oscillator
–Internal 16MHz RC oscillator
–Internal 32KHz RC oscillator
– PLL circuit supports fractional frequency configuration with a maximum frequency multiplication up to 80MHz
● Up to 43 I/Os
–All mappable on external interrupt vectors
–8 I/Os, supporting low-power external wake-up events
● Timer
–1x 16-bit enhanced timer, 4 inputs capture / 6 outputs compare，4 pairs of PWM complementary output, with emergency brake
–2 x 32-bit advanced timers, 2 inputs capture/outputs compare, 2 pairs of PWM outputs (with 1 pair of PWM complementary outputs)
–2 x 16-bit advanced timers, 4 input capture/output compare, 4 pairs of PWM outputs (3 pairs with PWM complementary outputs)
–1x 16-bit basic timer
● Communication interfaces
– One I2C, Multi-master mode、SMBus
– Two SPI
– Two UART support automatic baud rate detection, RS-485, and hardware automatic flow control
● Arithmetic Accelerator Unit
– One CALC, 32-bit division and square root operations
● DMA
– 6 DMA transfer channels
– Each channel has its own independent control buffer, improving transfer speed
–Supports peripheral transfer requirements, including SPI, I2C, UART, timers, and ADC
–Supports data transfer between peripheral and memory (P2M/M2P) or between memory and memory (M2M)
● Analog Control Unit
–1x 12-bit ADC, 2MSPS, 20 channels, up to 16 external inputs
–One CMP
–One OPAMP, configurable differential/single-ended PGA, supporting magnifications from x1 to x64.
–One VRES, 5-bit resistor voltage divider
● System peripherals
– SWD interface
–SysTick timer
● Functional Safety and Information Security Module
– 128-bit unique identification code (UID)
–Watchdog timers: IWDT and WWDT
–External crystal clock security detection (CSS)
–8/16/32-bit CRC checksum with configurable generator polynomial
● Package
-LQFP48（7x7mm）/ LQFP32（7x7mm）
–QFN48（6x6mm）/ QFN48（5x5mm）/ QFN32（5x5mm）