CH32V003J4M6 32bit Microcontroller IC SOP8

CH32V003J4M6 32-bit Microcontroller IC (SOP-8) offers a compact and cost-effective entry point into RISC-V development. Despite its small 8-pin footprint, it integrates a 32-bit CPU core, essential peripherals, and flash memory, making it a practical choice for embedded control, DIY electronics, and compact consumer devices.

Key Features:

• RISC-V 32-bit Core: Runs at up to 48 MHz, delivering efficient performance in a minimal package.
• Flash + SRAM: Includes 16 KB program flash and 2 KB SRAM for lightweight applications.
• Integrated Peripherals: Provides timers, watchdog, UART, I²C, and SPI for flexible interfacing.
• Low Power Modes: Supports sleep and standby modes to extend battery life.
• Simple Development: Works with open RISC-V toolchains and community projects.
• Affordable and Accessible: Designed to reduce entry cost for embedded control designs.

Technical Specifications:

• CPU Core: 32-bit RISC-V2A
• Operating Frequency: Up to 48 MHz
• Program Memory: 16 KB Flash
• Data Memory: 2 KB SRAM
• Interfaces: UART, I²C, SPI, plus general purpose timers
• Operating Voltage: 3.3 V (typical)
• Package: SOP-8 surface-mount
• Temperature Range: −40 °C to +85 °C

Mechanical Specifications:

• Package Type: SOP-8 (plastic small outline)
• Mounting: Surface-mount technology (SMT)
• Lead Finish: Tin-plated for reliable soldering
• Body Material: Molded epoxy package for durability

Dimensions:

• Body Width: ~3.9 mm
• Body Length: ~4.9 mm
• Lead Pitch: 1.27 mm
• Lead Length: ~0.5 mm

Pinout and Wiring:

• Pin 1: Reset / multifunction I/O
• Pin 2: Ground (GND)
• Pin 3: UART TX / GPIO
• Pin 4: UART RX / GPIO
• Pin 5: SPI / I²C function pin
• Pin 6: Timer / PWM output
• Pin 7: General purpose I/O
• Pin 8: VCC (Power Supply 3.3 V)
• Wiring Tip: Connect VCC (Pin 8) and GND (Pin 2) to power, and use UART pins for programming and debugging.

Datasheet Reference:

• Consult WCH’s official CH32V003J4M6 datasheet for detailed register maps, electrical specifications, and example circuits.

Applications:

• Embedded Controllers: Compact control units in consumer and industrial products.
• DIY Projects: Hobbyist microcontroller boards and educational electronics.
• Smart Sensors: Local processing in IoT and low-power sensing devices.
• Peripheral Bridges: UART, I²C, or SPI bridging in small system designs.

Equivalent Models:

• CH32V003F4P6: Same core in TSSOP-20 package for more I/O.
• PicoRV32: Open-source RISC-V core suitable for FPGA use.
• STM32C0 Series: Entry-level ARM Cortex-M0+ microcontrollers with similar cost profile.

Package Includes:

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