CH32V003F4U6

Part: CH32V003 series — WCH (WCH is the manufacturer of Qingke RISC-V cores, and the datasheet is from WCH)

Type: 32-bit RISC-V Microcontroller

Description: Industrial-grade general-purpose microcontroller based on the Qingke RISC-V2A core, supporting a 48MHz system main frequency, with 16KB Flash, 2KB SRAM, a 10-bit ADC, op-amp comparator, multiple timers, and standard communication interfaces (USART, I2C, SPI).

Operating Conditions:

• Supply voltage: 2.7–5.5 V
• Operating temperature: -40 to 85 °C
• System main frequency: 48 MHz

Absolute Maximum Ratings:

• Max supply voltage: 5.5 V
• Max junction/storage temperature: 85 °C (operating temperature range)

Key Specs:

• Core: Qingke 32-bit RISC-V core, RV32EC instruction set
• Program Flash: 16KB
• SRAM: 2KB
• ADC Resolution: 10-bit
• ADC Channels: Up to 8 external + 2 internal
• GPIO Pins: Up to 18
• DMA Channels: 7
• Communication Interfaces: 1x USART, 1x I2C, 1x SPI

Features:

• Fast programmable interrupt controller (PFIC) with 2-level nesting
• Low power modes: Sleep, Standby
• Built-in 24MHz RC oscillator and 128KHz RC oscillator
• Power-on/power-down reset, programmable voltage monitor
• 1x 16-bit advanced timer with dead-time control and complementary PWM
• 1x 16-bit general-purpose timer with input capture/output compare/PWM
• 2 watchdog timers (independent and window type)
• Serial single-wire debug interface
• 96-bit unique chip ID

Applications:

• General-purpose embedded applications
• Small-area, low-power embedded applications

Package:

• SOP8
• SOP16
• TSSOP20
• QFN20

• Core
• QingKe 32-bit RISC-V core, RV32EC instruction set
• Fast Programmable Interrupt Controller + Hardware Interrupt Stack
• Supports 2 levels of interrupt nesting
• Supports system main frequency 48MHz

Figure 3-1 Typical Conventional Power Supply Circuit

Exceeding or reaching absolute maximum ratings may cause abnormal operation or even damage to the chip.