The **APM32F003F6P7-R** is a low-power, high-performance 32-bit microcontroller manufactured by **Geehy Semiconductor**. It is based on the **ARM® Cortex®-M0+ core** and is designed to be a cost-effective alternative to the STM8 or STM32F0 series in industrial and consumer electronics. --- ### 1. Key Technical Specifications Below are the primary electronic characteristics of the APM32F003F6P7-R: | Feature | Specification | | :--- | :--- | | **Core** | ARM® Cortex®-M0+ | | **Max Frequency** | 48 MHz | | **Flash Memory** | 32 KB | | **SRAM** | 4 KB | | **Operating Voltage** | 2.0V ~ 5.5V | | **Operating Temp** | -40°C ~ +105°C | | **Package** | TSSOP20 | --- ### 2. Core Functional Blocks #### A. Power Management and Clock * **Voltage Range:** Operates up to 5.5V, making it suitable for automotive and industrial 5V systems. * **Clock Sources:** Internal 8MHz RC oscillator (HSI), internal 40kHz RC (LSI), and support for external crystal oscillators (HSE). #### B. Peripherals and Connectivity * **Timers:** * 1 x 16-bit Advanced Control Timer (PWM generation with dead-zone). * 1 x 16-bit General Purpose Timer. * Independent and Window Watchdog timers. * **Communication Interfaces:** * **UART:** 1x Universal Asynchronous Receiver/Transmitter. * **SPI:** 1x Serial Peripheral Interface (up to 24Mbps). * **I2C:** 1x Inter-Integrated Circuit (Fast Mode 400kHz). * **Analog-to-Digital Converter (ADC):** 1x 12-bit ADC with up to 8 external channels. #### C. I/O Ports * Up to 16 fast I/O ports. * Nearly all I/O ports are mappable to external interrupt vectors. --- ### 3. Pinout Overview (TSSOP20) The TSSOP20 package is compact, making it ideal for space-constrained applications. ```text +-------+--+-------+ PD4 |1 +--+ 20| PD3 PD5 |2 19| PD2 PD6 |3 18| PD1 NRST |4 17| PC7 PA1 |5 APM32F003 16| PC6 PA2 |6 F6P7-R 15| PC5 VSS |7 14| PC4 VCAP |8 13| PC3 VDD |9 12| PB4 PA3 |10 11| PB5 +----------------+ ``` --- ### 4. Typical Applications * **Small Home Appliances:** Blenders, rice cookers, and coffee machines. * **Industrial Control:** Small PLC modules, sensor nodes, and motor controllers. * **Lighting:** LED strip controllers and smart bulbs. * **PC Peripherals:** Cooling fan controllers and keyboard modules.