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Home / Development Boards & Control Boards / STC89C52RC Development Board 51 Microcontroller STC12 Minimum System Board CH340 Serial Download Core Board

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller Model STC89C52RC
Architecture 8051 Compatible
Operating Voltage 5V DC
Clock Frequency 11.0592 MHz
Flash Memory 8 KB
RAM 256 Bytes
Download Interface CH340 USB to TTL
GPIO Pins 32 Programmable
Board Size 55mm x 40mm
Weight 15 grams

5 reviews

A

Anonymous

Apr 04, 2026

Rating: 5/5

Fast shipping and works

Arrived quickly and was well packaged. The USB port is sturdy and the board powers up without issues.

A

Anonymous

Mar 10, 2026

Rating: 4/5

Good value but basic

Solid board for the price. I wish it came with a clearer pinout diagram in the box, but you can find one online easily.

A

Anonymous

Mar 03, 2026

Rating: 3/5

Okay for beginners

It works but the documentation provided was very sparse. You need some prior knowledge to get started effectively.

A

Anonymous

Feb 11, 2026

Rating: 5/5

Reliable minimal system

Used this for a hobby project involving sensor reading. The stable clock frequency makes timing very accurate. Highly recommend.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Perfect for learning 8051

This board works exactly as described. The CH340 driver was easy to install and I was able to upload code within minutes. Great for students.

5 FAQ

Q: Does it have a reset button?

A: Yes, there is a dedicated hardware reset button on the board for easy restarting.

Q: Which software IDE is supported?

A: This board is compatible with Keil C51 and STC-ISP software for programming.

Q: Is it compatible with Arduino IDE?

A: Not directly. This uses 8051 architecture, not AVR. Please use Keil or STC specific tools.

Q: Is the USB cable included?

A: Yes, a standard Mini USB cable is included in the package for power and programming.

Q: Can I use 3.3V logic levels?

A: No, this is a 5V system. Please do not connect 3.3V signals directly to avoid damage.

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