WCH CH571K

CH573 is a RISC-V MCU integrated with BLE wireless communication. It integrates a BLE communication module, full-speed USB host and device controller and transceiver, SPI, 4 UARTs, ADC, touch-key detection module, RTC and other peripheral resources.

• 32-bit Qingke RISC-V processor WCH RISC-V3A
• Support RV32IMAC instruction set, hardware multiplication and division
• Low power consumption 2-stage assembly line
• Multi-speed system frequency: minimum 32kHz
• Unique high-speed interrupt response mechanism
• 448KB user application program memory area CodeFlash
• 32KB user non-volatile data memory area DataFlash
• 24KB system boot program memory area BootLoader
• 8KB system non-volatile configuration information memory area InfoFlash
• Support ICP, ISP and IAP, support OTA wireless upgrade
• Basically, no waiting at the system frequency of 20MHz
• Sleep retention memory area RAM16K using 16KB dual power supply
• Sleep retention memory area RAM2K using 2KB dual power supply
• Support 3.3V and 2.5V power, CH573X supports 1.8V
• Built-in DC-DC conversion, current of 6mA at 0dBm TX power
• Idle mode: 1.5mA
• Halt mode: 320uA
• Sleep mode: Multiple gears from 1.4uA to 6uA
• Shutdown mode: Multiple gears from 0.3uA to 1.3uA
• Optional low-voltage monitoring of low-power or high-precision battery voltage
• Security properties: AES-128 encryption and decryption, unique ID
• Integrated with 2.4GHz RF transceiver and baseband and link control
• 96dBm RX sensitivity, programmable +5dBm TX power
• BLE complies with Bluetooth Core Specification v4.2
• The wireless communication distance is about 240 meters at 3dBm TX power
• Provide optimized protocol stack and application layer API, and support networking
• Built-in USB controller and DMA, support 64-byte data packet
• Integrated USB 2.0 full-speed transceiver PHY, no peripheral required
• Support host and device mode at full speed/low speed
• Support 2 modes of timing and triggering
• 12-bit analog to digital converter, support differential and single-ended input
• 10 external analog signal channels and 2 internal signal channels
• 10 channels
• 4 sets of 26-bit timers, which can reach 4.2S at the frequency of 16MHz
• 4-channel capturing/sampling, support rising edge/falling edge/double edge
• 4 channels of 26-bit PWM output, 8 channels of 8-bit PWM output
• 4 independent UARTs, compatible with 16C550, built-in 8-level FIFO
• 23-bit counter, communication baud rate is up to 6Mbps
• UART0 supports some modems and supports automatic flow control of hardware
• UART0 supports automatic matching of slave address during multi-computer communication
• Built-in FIFO, support DMA
• SCK serial clock frequency can reach half of system clock frequency
• Support Master mode and Slave mode
• Clock: Built-in PLL, built-in 32kHz clock
• Temperature sensor (TS)
• 22 GPIOs, 4 of which support 5V signal input
• Optional pull-up or pull-down resistors, optional output drive capability
• All GPIOs support level or edge interrupt input
• All GPIOs support level or edge wakeup input
• QFN28_4X4, QFN32_4X4, QFN20_3X3