Features: [CH32V003F4P6-EVT-R0]QingKe 32-bit RISC-V2A processor with 2-level interrupt nesting support; Up to 48MHz system main frequency; 2KB SRAM, 16KB Flash; Power supply voltage: 3.3/5VMultiple low-power modes: Sleep, StandbyPower up/down reset, programmable voltage detector1 group of 1-channel general-purpose DMA controller; 1 group of OPA; 1 group 10-bit ADC; 1 16-bit advanced-control timer and 1 16-bit general-purpose timer; 2 watchdog timers and 1 32-bit SysTick timer; 1 USART interface, 1 group of IC interface, 1 group of SPI interface; 18 I/O ports, mapping an external interrupt; 64-bit chip unique ID; 1-wire serial debug interface(SDI)CH32V003 series is based on the QingKe RISC-V2A core design of industrial-grade general-purpose microcontroller, support 48MHz system main frequency, with wide voltage, 1-wire SDI, low-power consumption, ultra-small package, etc. CH32V003 series built-in a group of DMA controller, a group of 10-bit ADC, a group of OPA, multiple timers and standard communication interfaces USART, IC, SPI, etc. Features: [CH32V203C8T6-EVT-R0]Qingke V4B, up to 144MHz system clock frequency.Single-cycle multiplication and hardware division.20KB SRAM, 64KB Flash.Supply voltage: 2.5V/3.3V. GPIO unit is supplied independently.Low-power modes: sleep/stop/standby.Down to 44.65uA/MHz in Run mode.Down to 17.90uA/MHz in Sleep mode.Power-on/power-down reset (POR/PDR), programmable voltage detector (PVD).1 x 18-channel general DMA controllers.2 amplifiers.10-channel 12-bit ADC, 10-channel TouchKey.4 timers.One USB2.0 full-speed host/device interface.One USB2.0 full-speed device interface.4 UARTs.One CAN interface (2.0B active).2 IIC interfaces, 2 SPI interfaces.37 I/O ports, can be mapped to 16 external interrupts.CRC calculation unit, 96-bit unique ID.Serial 2-wire debug interface.Material