CH32V003J4M6 32bit Microcontroller IC SOP8

CH32V003J4M6 32-bit Microcontroller IC SOP-8 represents a groundbreaking entry-level device, leveraging the low-power, high-performance RISC-V2A core for embedded systems. This MCU delivers the power of a modern 32-bit architecture in an ultra-compact SOP-8 package, making it ideal for cost-sensitive and space-constrained applications. The CH32V003 series integrates essential peripherals, including timers, ADC, and multiple communication interfaces, while operating at a high frequency of up to 48 MHz. Consequently, it offers significant performance advantages over traditional 8-bit microcontrollers at a comparable price point. Furthermore, its small size and low power consumption make it an excellent choice for replacing older, bulkier solutions in mass-market consumer electronics and IoT endpoints.

Key Features:

• High-Performance Core: Utilizes the 32-bit RISC-V2A core, clocked at up to 48 MHz, delivering superior instruction execution speed compared to classic 8-bit MCUs.
• Ultra-Compact Package: The SOP-8 (Small Outline Package) drastically minimizes the required PCB area, supporting miniaturization in final products.
• Integrated Flash and RAM: Features 16 KB of Flash memory and 2 KB of SRAM, providing ample space for complex application code and data handling.
• Power Efficiency: Designed for low power consumption, making it suitable for battery-operated devices and energy-conscious applications.
• Robust Peripherals: Includes 1x 10-bit ADC, multiple timers, and communication interfaces like 1x USART, 1x I²C, and 1x SPI.
• Sufficient I/O: Provides up to 5 programmable General Purpose Input/Output (GPIO) pins, sufficient for driving basic status indicators and sensors.

Technical Specifications:

• Core Architecture: RISC-V2A (32-bit)
• Maximum Frequency (F_CPU): 48 MHz
• Flash Memory: 16 KB
• SRAM: 2 KB
• Operating Voltage Range (V_DD): 2.7 V to 5.5 V
• ADC Resolution: 10-bit
• Number of Timers: 1x 16-bit Timer, 1x WDG, 1x RTC
• I/O Ports: Up to 5 GPIOs
• Operating Temperature Range: −40°C to +85°C

Mechanical Specifications:

• Package Type: SOP-8 (Small Outline Package)
• Mounting: Surface Mount Device (SMD/SMT)
• Moisture Sensitivity Level (MSL): MSL 3 (Typical)
• Process Technology: 55 nm Low Leakage Process

Dimensions:

• Body Length (E): ≈ 4.9 mm
• Body Width (D): ≈ 3.9 mm
• Height (A): ≈ 1.5 mm
• Pitch (e): 1.27 mm (Standard SOP pitch)
• Lead Material: Lead frame with Sn finish

Pinout and Wiring:

• Pin 1 (GND): Connect this pin to the circuit ground (0 V).
• Pin 2 (PC0): General purpose I/O, often used for Serial Wire Debug (SWD) input.
• Pin 3 (PC1): General purpose I/O, often used for Analog-to-Digital Converter (ADC) input.
• Pin 4 (V_DD): Connect this pin to the main power supply (2.7 V to 5.5 V).
• Pin 5 (PC2): General purpose I/O, frequently used for clock output (CLKOUT) or Timer functions.
• Pin 6 (PC3): General purpose I/O, can be configured for communication (e.g., SPI Slave Select).
• Pin 7 (PC4/SWD-IO): General purpose I/O, but primarily functions as the Serial Wire Debug I/O pin.
• Pin 8 (PC5/SWD-CLK): General purpose I/O, but primarily functions as the Serial Wire Debug Clock pin.

Datasheet Reference:

• Download CH32V003 Datasheet (WCH)

Commonly Used in:

• Minimal IoT Endpoints: Providing the necessary intelligence for simple sensors, beacons, and smart home modules where space and cost are paramount.
• Peripheral Controllers: Acting as a dedicated local controller for complex actuators or sensor hubs in larger systems.
• Consumer Gadgets: Found in electronic toys, small handheld tools, and basic battery-powered devices.
• Educational Boards: Offering an accessible and low-cost platform for learning the RISC-V architecture.

Applications:

• Simple Motor Drivers: Controlling speed and direction of small DC motors using PWM outputs.
• USB-to-Serial Adapters: Utilizing the integrated USART peripheral for basic communication bridges.
• Voltage/Current Monitoring: Employing the 10-bit ADC to sample and report analog data from environmental sensors.
• LED and Display Control: Driving simple seven-segment displays or managing complex LED patterns with precise timing.

Equivalent Models:

• STM32F030F4P6 (STMicroelectronics): A widely known ARM Cortex-M0 device in a TSSOP-20 package, often considered a functional target with similar capabilities but a different architecture.
• ATtiny85 (Microchip): Although an 8-bit AVR, developers often use it in the same small form-factor, low-cost applications the CH32V003 targets.
• CH32V003A4M6: A variant within the same series but offering different memory or pin configurations, giving developers flexible options.

Package Includes:

• 1 x CH32V003J4M6 32-bit Microcontroller IC SOP-8