Overview of Qinheng's 8-bit enhanced USB microcontroller CH547

Overview

CH547 is an enhanced E8051 core microcontroller compatible with MCS51. 79% of the instructions are single-byte single-cycle instructions. It runs fast and has built-in 60KB Flash-ROM and 1K+256B RAM.

CH547's built-in USB controller and USB transceiver support USB-Device device mode, support USB 2.0 full speed 12Mbps or low speed 1.5Mbps, support maximum 64-byte data packets, built-in FIFO, and support DMA.

CH547 provides rich interface resources, including 4 groups of asynchronous serial ports, 4 channels of PWM and 12 channels of capacitive touch buttons. Others include 1 channel of master-slave SPI, 12 channels of 12-bit ADC, supporting voltage comparison; built-in 3 groups of timers and 1 channel of signal Capture; supports up to 44 GPIOs.

System Block Diagram

Features

》Enhanced E8051 core CPU, 8-15 times faster than standard MCS51, with unique XRAM data fast copy instructions;

》Built-in 60KB Code Flash, 1KB Data Flash and 3KB BootLoader, supporting USB and serial port ISP;

》Built-in 1KB XRAM and internal 256B RAM;

》 Built-in USB controller and USB transceiver, supports USB2.0 full-speed and low-speed devices, and supports DMA;

》 Provides 3 sets of timers/counters, supporting 1 pin signal capture and 4 PWM outputs;

》 Provide 4 full-duplex asynchronous serial ports;

》Provides 1 SPI communication interface and supports master/slave mode;

》Provide 12-channel 12-bit ADC analog-to-digital converter multiplexed with GPIO;

》Provide 12-channel capacitive touch buttons;

》Built-in clock and PLL, also supports external crystal oscillator;

》Package: SOP16, QFN28, LQFP48;