CH551
Overview
CH552 chip is a microcontroller core E8051 patible MCS51 enhanced instruction set that 79% of single-byte instructions are single cycle instructions, instruction average velocity MCS51 8 to 15 times faster than the standard.
CH552 system supports up to 32MHz frequency, built 16K bytes of program memory ROM and 256 bytes of internal i RAM 1K and the inner sheet x RAM, x RAM supports direct memory access DMA.
CH552 built ADC analog to digital converter, a capacitance detection touch key, group 3 and the PWM signal acquisition and timers, dual asynchronous serial interface, SPI, USB full-speed device controller and transceiver function modules.
CH551 to CH552 is a simplified version, only program memory ROM 10K, the sheet x RAM only 512 bytes, only asynchronous serial UART0 provided, only SOP16 package, and removes the ADC analog to digital conversion module and a USB type-C module in addition addition to the above difference with the same CH552, CH552 direct reference manuals and...
