Chip Introduction

Core

• 32-bit ARM® Cortex®-M0+

• Maximum operating frequency of 48 MHz

Memory

• Maximum 64 Kbytes of flash memory

• Maximum 8 Kbytes of SRAM

Clock System

• Internal 4/8/16/22.12/24 MHz RC oscillator (HSI, High-Speed Internal Oscillator)

• Internal 32.768 KHz RC oscillator (LSI, Low-Speed Internal Oscillator)

• PLL (Phase-Locked Loop), supporting 2x frequency multiplication of HSI

Power Management and Reset

• Operating voltage: 1.7 V ~ 5.5 V

• Low-power modes: Sleep and Stop

• Power-On/ Power-Down Reset (POR/PDR)

• Brown-Out Detection Reset (BOR)

• Programmable Voltage Detection (PVD)

General-Purpose Input/Output (I/O)

• Up to 14 I/O pins, all configurable as external interrupts

• Drive current: 8 mA

3-Channel DMA Controller

• 3 independent Direct Memory Access (DMA) channels for high-speed data transfer between peripherals and memory

1 x 12-Bit ADC

• Supports up to 7 external input channels

• Input voltage conversion range: 0 ~ VCC (supply voltage)

Timers

• 1 x 16-bit advanced control timer (TIM1)

• 4 x general-purpose 16-bit timers (TIM3/TIM14/TIM16/TIM17)

• 1 x low-power timer (LPTIM), supporting wake-up from Stop mode

• 1 x independent watchdog timer (IWDT)

• 1 x window watchdog timer (WWDT)

• 1 x SysTick timer

• 1 x IRTIM (Infrared Timer, for infrared communication applications)

RTC (Real-Time Clock)

• Provides accurate timekeeping functions, supporting low-power operation

Communication Interfaces

• 2 x Serial Peripheral Interfaces (SPI)

• 2 x Universal Synchronous/Asynchronous Receiver/Transmitters (USART), with automatic baud rate detection

• 1 x I2C interface, supporting Standard-mode (100 KHz) and Fast-mode (400 KHz), compatible with 7-bit addressing mode

Hardware CRC-32 Module

• Built-in cyclic redundancy check (CRC) module with 32-bit width, for data integrity verification

2 Comparators

• Two independent analog comparators for voltage comparison applications

Built-in Multi-Function Three-Phase NN-Type Half-Bridge Gate Driver

• Floating withstand voltage of 40 V

• Operating voltage: 5.5 V ~ 18 V

• Output current: ±0.8 A

• Built-in bootstrap diode

• LDO (Low-Dropout Regulator): 5 V / 50 mA

• 1 x Programmable Gain Amplifier (PGA)

• 3 x comparators (COMP) with adjustable voltage division ratio

Unique UID (Unique Identification)

• A unique serial number for device identification and traceability

Serial Wire Debug (SWD)

• Supports SWD interface for on-chip debugging and programming

Operating Temperature

• -40℃ ~ 105℃

Package

• QFN32 (4mm x 4mm)