CH554G USB microcontroller with 16KB ROM/ 256-bytes IRAM/ 1.25Kbytes XRAM and DMA

Description

Specifications Core: enhanced e8051 core, 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 the standard MCS51. It has a special xram data replication instruction and double dptr pointer. ROM: 16 KB capacity of multi programmable non-volatile memory ROM, can be used for all program storage space Data Flash: 128 bytes multi erasable non-volatile data memory, which supports rewriting data in bytes. RAM: 256 bytes internal RAM, which can be used for fast data storage and stack; 1.25K bytes on chip xram can be used for large amount of data temporary storage and DMA (direct memory access). USB: embedded USB controller and USB transceiver, supporting USB device mode and Host Mode, master-slave detection, supporting USB 2.0 full speed 12mbps or low-speed 1.5mbps. FIFO is built-in and supports 64 bytes of data packets. Timer: three groups of timers, t0 / T1 / T2 is the standard MCS51 timer. Capture: timer T2 is extended to support 2-way signal capture. PWM: 2 sets of PWM output, pwm1 / pwm2 is 2-way 8-bit PWM output. UART: asynchronous serial port, support higher communication baud rate, UART0 is the standard MCS51 serial port. SPI: SPI controller has built-in FIFO, clock frequency up to half of the system’s main frequency Fsys, supports serial data input and output simplex multiplexing, and supports master / slave mode. Touch key: 4-channel capacitance detection, support i