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STC8H8K64U core board

Overview

This document describes
the design of a minimum system board for the STC8H8K64U. Each I/O pin has an LED for easier pin status monitoring. It utilizes dual Type-C ports for serial or USB download functionality.

Features of the chip
include: ● Wide operating voltage range: 1.9~5.5V
● 60 I/O pins
● Common functions such as IIC, SPI, and UART
● Even the most expensive model (LQFP64) costs only 2.5 RMB.
The following is the internal block diagram

and schematic of the STC8H8K. The design is

based on the STC8H datasheet, with all pins brought out for easy external function verification.

A physical demonstration is also provided.

Design Files

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It is your responsibility to test the circuit yourself and determine its suitability for you. EEWorld will not be liable for direct, indirect, special, incidental, consequential or punitive damages arising from any cause or anything connected to any reference design used.

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Update:2026-03-28 04:38:40

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