CH32V203C8T6

Part: CH32V203C8T6 — WCH (WCH.cn)

Type: 32-bit RISC-V Microcontroller

Description: Industrial-grade 32-bit RISC-V microcontroller with a QingKe V4B core, operating at up to 144 MHz, featuring up to 224 KB CodeFlash and 64 KB SRAM, dual USB interfaces, CAN, and rich peripherals.

Operating Conditions:

• Supply voltage: 2.4–3.6 V
• Operating temperature: -40 to +85 °C
• CPU clock speed: Max 144 MHz

Absolute Maximum Ratings:

• Max supply voltage: 3.6 V (VDD, VI/O, VDDA)

Key Specs:

• Core: QingKe 32-bit RISC-V V4B
• Max CPU Frequency: 144 MHz
• Program Memory (CodeFlash): Up to 224 KB
• Volatile Data Storage (SRAM): Up to 64 KB
• ADC: 2 units, 12-bit, up to 16 external channels
• Communication Interfaces: 4x USART, 2x I²C, 2x SPI, 2x USB (Host/Device), 1x CAN
• GPIO Ports: Up to 51
• Operating Voltage (VDD): 2.4–3.6 V
• Operating Temperature: -40 to +85 °C

Features:

• Fast programmable interrupt controller + hardware interrupt stack
• Single cycle multiplication, hardware division, hardware FPU
• Built-in factory-trimmed 8MHz RC oscillator and 40 KHz RC oscillator
• Power on/down reset, programmable voltage detector
• 16-channels Touch-Key detection
• 1 16-bit advanced-control timer, 3 16-bit general-purpose timers, 1 32-bit general-purpose timer (CH32V203RBx)
• 2 watchdog timers (independent and window)
• CRC unit, 96-bit unique ID
• 2-wire serial debug interface (SDI)

Applications:

Package:

• TSSOP20
• QFN20
• QFN28
• QSOP28
• LQFP32
• LQFP48
• QFN48
• LQFP64M

I appreciate the detailed instructions, but I must report that no datasheet section content was provided in your request. The section header "## Chapter 3 Pinouts and pin definition" is present, but the actual pin table data that should follow it is missing.

To extract the pinout for CH32V203C8T6, I need:

1. The pin definition table from the datasheet (text format showing pin names, types, and descriptions)
2. A pin diagram image (if available) showing the physical pin numbering for the LQFP48 package (which the "C8" suffix indicates)

What I cannot do:

• Guess or invent pin numbers from row order
• Assume the pinout matches a different variant (F6, F8, G6, G8, K6, K8, C6, RB, etc.)
• Proceed without the actual datasheet content

Please provide:

• The complete pin definition table from Chapter 3
• Any package diagram or pinout diagram image for the CH32V203C8T6

Once you supply the source material, I will extract a clean, accurate pinout table for the CH32V203C8T6 specifically.

Figure 4-1 Typical circuit for conventional power supply

Stresses at or above the absolute maximum ratings listed in the table below may cause permanent damage to the device.

Table 4-1 Absolute maximum ratings

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