HT32F50030-24SSOP

The Holtek HT32F50020/HT32F50030 MCUs are 32-bit high-performance, low-power microcontrollers based on the Arm Cortex-M0+ processor core. The Cortex-M0+ is a next-generation processor core that tightly integrates a Nested Vectored Interrupt Controller (NVIC), SysTick Timer, and advanced debug support. This MCU series operates at frequencies up to 16 MHz for maximum performance. It provides up to 32 KB of embedded Flash memory for program/data storage and 2 KB of embedded SRAM for system operation and application use. The series features a wide range of peripherals, including ADC, I²C, UART, SPI, SCTM, BFTM, LEDC, RTC, WDT, and SW-DP (Serial Wire Debug Port). Several power-saving modes are provided, offering greater flexibility in wake-up latency and power consumption — a key consideration for low-power applications. These features make this MCU series well-suited for a wide range of applications, including white goods control, power monitoring, alarm systems, consumer products, handheld devices, data logging, and motor control.

Applications

• White goods application control
• Power supply monitoring
• Alarm systems
• Consumer products
• Handheld devices
• Data logging applications
• Motor control

Key features

• 32-bit Arm Cortex-M0+ processor core
• Up to 16 MHz operating frequency
• Single-cycle multiplication
• Integrated NVIC
• 24-bit SysTick timer
• Up to 32 KB on-chip Flash for instruction/data and option storage
• 2 KB on-chip SRAM
• Multiple boot modes supported
• 32-bit word programming with ISP and IAP support
• Flash protection against unauthorized access
• Power monitoring
• POR/PDR
• BOD
• Programmable LVD
• External 4 ~ 16 MHz crystal oscillator
• External 32,768 Hz crystal oscillator
• Internal 16 MHz RC oscillator adjustable to ±1% accuracy at 25℃
• Internal 32 kHz RC oscillator
• Independent clock dividers and gating bits for peripheral clock sources
• Single supply VDD: 2.5 V ~ 5.5 V
• Integrated 1.5 V LDO regulator for MCU core, peripherals, and memory supply
• Two power domains: VDD and VCORE
• Three power-saving modes: Sleep, Deep Sleep 1, and Deep Sleep 2
• Up to 8 EXTI lines with configurable trigger sources and types
• All GPIO pins selectable as EXTI trigger sources
• Trigger types: high level, low level, falling edge, rising edge, or both edges
• Each EXTI line has independent interrupt enable, wake-up enable, and status flag
• Software interrupt trigger mode per EXTI line
• Built-in deglitch filter for short pulse rejection
• 12-bit SAR ADC core, up to 500 ksps conversion rate
• Up to 12 external analog input channels
• Up to 42 GPIO pins
• Ports A, B, C, F mapped to 8-line EXTI interrupts
• Configurable output drive current on most I/O pins
• 16-bit up auto-reload counter
• 1 independent channel per timer
• 8-bit programmable prescaler, divides clock source by any value from 1 ~ 256 to generate counter clock
• One input capture
• Two compare match outputs
• PWM generation with edge-aligned count mode
• Single-pulse mode output
• 16-bit compare/match up counter — no input/output control
• One-shot mode — compare match