Vi điều khiển CH552T TSSOP-20 8-bit Enhanced USB MCU

CH552 is an enhanced E8051 core MCU, compatible with MCS51 instruction set. 79% of its instructions are single-byte single-cycle instructions. The average instruction speed is 8~15 times faster than that of standard MCS51. CH552 supports up to 24MHz system clock frequency. CH552 has built-in 16K program memory ROM, 256-byte internal iRAM and 1K-byte internal xRAM. And xRAM supports direct memory access (DMA). CH552 has built-in ADC, capacitive touch-key detection, 3 timers and signal capture and PWM, 2 UARTs, SPI, USB device controller and full-speed transceiver, USB type-C and other functional modules.
Datasheet: 8-bit USB Device MCU – CH552 – NanjingQinhengMicroelectronics (wch-ic.com)