ch552g core board

The default CH552G chip is compatible with CH551G/CH554G chips.

①The CH552G-SOP16 chip
supports full-speed USB enhanced 51-core microcontroller and is compatible with CH551G/CH554G chips.
②All O ports of SOP16 are led out;
all O ports of the microcontroller are led out through 2.54mm spacing pin headers.
③USB communication download interface
standard USB-A interface, convenient for program download and communication experiments.
④ Convenient for use with external universal boards.
All pin headers on the core board are 2.54mm, which is convenient for plugging into square boards or breadboards.

⑤Additional interfaces

Additional microUSB interface and serial port interface: 5V TXD RXD GND

Version: ① The RST capacitor and resistor are removed from the original version because the RST pin has a built-in pull-down resistor. Further reduce PCB size.

②The power supply is connected to the CH552g power terminal via USB via D1. D1 can be replaced with a 0R resistor or fuse or short-circuited.