STC8G1K08A_board

STC8G1K08A Ultra-Small System Board
Note:

Except for P3.0 and P3.1, all other I/O ports are in a high-impedance input state after power-on. Users
must configure the I/O port mode before using it.
All I/O ports can be set to quasi-bidirectional port mode, strong push-pull output mode, open-drain output mode
, or high-impedance input mode. Additionally, each I/O port can independently enable its internal 4K pull-up resistor
. When P5.4 is enabled as the reset pin, the reset level is low.
For the STC8G1K08 series B version chip, P5.4 is used as an I/O port. When using the port, the current should not exceed 50mA,
and strong impacts should be avoided.
The USB download supported by the STC8G1K08 series B version chip is a software-simulated USB connection via the I/O port. Due to factors such as manufacturing process and temperature, a certain percentage of chips may fail to perform USB downloads. Actual testing shows that the failure rate is approximately 5% to 8%.

Four chips (V1.0) were soldered: one 08 chip, two 08A chips, and one 17 chip. The 17 chip failed to perform USB downloads.
Version 2.0: Optimized silkscreen and layout.