The HK32F030MF4P6 Minimal System Core Board is a compact, low-cost development and evaluation platform built around the HK32F030MF4P6 microcontroller from Hangshun Chip (HK). Designed as a direct hardware replacement for the STM8S003 and other 8-bit MCU platforms, this board brings 32-bit ARM Cortex-M0 processing power to projects where cost and simplicity are critical — without sacrificing development tool compatibility or performance.
At its core, the HK32F030MF4P6 is powered by an ARM Cortex-M0 core running at up to 32MHz, offering a significant performance leap over traditional 8-bit microcontrollers. It integrates 16KB Flash and 2KB SRAM for program storage and runtime data, along with 448 bytes of EEPROM for non-volatile parameter storage. Despite its compact TSSOP-20 package, the chip exposes 16 GPIO pins, all of which can serve as peripheral I/O or external interrupt inputs.
The board’s standout feature is its pin compatibility with the STM8S003. This means existing STM8S003 hardware designs, PCBs, and peripheral circuits can be reused directly — you simply swap the 8-bit MCU for this 32-bit upgrade. For developers maintaining legacy 8-bit projects, this provides a straightforward migration path to a modern ARM Cortex-M0 platform.
Communication and control peripherals are well-equipped for general-purpose embedded tasks. The chip includes one USART (up to 4 Mbit/s, supporting LIN and IrDA protocols), one SPI/I2S interface (up to 16 Mbit/s), and one I2C interface (up to 1 MHz). A 12-bit ADC with up to 1 MSPS sampling rate handles analog sensor inputs. For motor control and PWM applications, the chip provides one 16-bit advanced PWM timer with 4 output channels (3 with complementary output and dead-time insertion), plus one 16-bit general-purpose timer and one basic timer.
Power efficiency is another strength. The HK32F030MF4P6 operates from 1.8V to 3.6V and supports multiple low-power modes: Run, Sleep, DeepSleep, and Stop. In Stop mode, current consumption drops to approximately 30µA, with wake-up possible via external pin or internal timer. This makes the board suitable for battery-powered and energy-conscious applications.
Whether you are a student learning ARM embedded development, a maker building cost-sensitive control projects, or an engineer evaluating a replacement for STM8S003 designs, this core board provides a practical, affordable foundation. Its minimal system design keeps the focus on the MCU itself, while the exposed GPIO headers and SWD debug interface make development and testing straightforward.
Features
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ARM Cortex-M0 @ 32MHz — 32-bit processing performance in a low-cost package, compatible with standard ARM development tools.
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STM8S003 pin-compatible — Direct hardware replacement for STM8S003 designs, enabling reuse of existing PCBs and peripheral circuits.
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16KB Flash + 2KB SRAM + 448B EEPROM — Balanced memory configuration for control logic, protocol stacks, and parameter storage.
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16 GPIO pins — All pins (except power/ground) can function as GPIO, peripheral I/O, or external interrupt inputs.
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Multiple communication interfaces — USART (up to 4 Mbit/s), SPI/I2S (up to 16 Mbit/s), and I2C (up to 1 MHz) for connecting sensors, displays, and modules.
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12-bit ADC — Up to 1 MSPS sampling rate for analog sensor and signal measurement applications.
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Advanced PWM timer — 16-bit timer with 4 PWM outputs, 3 supporting complementary output with dead-time insertion for motor control.
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Low-power modes — Run, Sleep, DeepSleep, and Stop modes with wake-up support; Stop mode current as low as ~30µA.
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Microcontroller | HK32F030MF4P6 (ARM Cortex-M0) |
| 2 | Maximum Clock Speed | 32 MHz |
| 3 | Flash Memory | 16 KB |
| 4 | SRAM / EEPROM | 2 KB SRAM / 448 B EEPROM |
| 5 | GPIO Count | 16 pins (all except power/ground) |
| 6 | Operating Voltage | 1.8V – 3.6V |
| 7 | Communication Interfaces | 1× USART, 1× SPI/I2S, 1× I2C |
| 8 | Package / Debug | TSSOP-20 / SWD (SWDIO, SWCLK) |
