CH340C USB-TTL ISP Programmer Module 3.3V 5V – SMD

CH340C USB-TTL ISP Programmer Module – 3.3V & 5V

Upgrade your microcontroller programming setup with this compact CH340C USB-to-TTL ISP Programmer Module. Supporting both 3.3V and 5V logic levels, it offers a reliable, drop-in replacement for CP2102 and CH340G-based modules. Whether you're flashing firmware onto STM32, 51-series MCUs, or other common microcontrollers, this tiny SMD module delivers consistent, stable communication every time.

Key Features

• Dual Voltage Support: Switchable between 3.3V and 5V – compatible with a wide range of MCUs and development boards
• CH340C Chip: No external crystal required – the CH340C has a built-in oscillator for simplified design and improved reliability
• Drop-in Replacement: Fully compatible as a substitute for CP2102 and CH340G modules
• Ultra-Compact SMD Form Factor: Measures just 11 × 22.2 mm and weighs only 4.75 g – ideal for space-constrained projects
• Broad MCU Compatibility: Works seamlessly with STM32, 51-series, AVR, and other popular microcontroller platforms
• Available in Multiple Quantities: Choose from 1 pc, 5 pcs, or 10 pcs to suit your project scale
• USB ISP Programming: Flash and debug firmware directly via a standard USB connection

Specifications

What's in the Box?

• CH340C USB-TTL ISP Programmer Module (SMD) – quantity as selected

Perfect For

Hobbyists, electronics engineers, and makers working with microcontroller projects, embedded systems development, firmware flashing, and serial communication debugging. A reliable addition to any DIY electronics workbench.

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Frequently Asked Questions

Q: What makes the CH340C USB-TTL ISP Programmer Module different from a CH340G or CP2102 module?

A: The CH340C chip features a built-in crystal oscillator, meaning it does not require an external crystal like the CH340G. This simplifies circuit design and improves reliability. It is fully compatible as a drop-in replacement for both CH340G and CP2102-based USB-to-TTL programmer modules.

Q: Which microcontrollers and development boards are compatible with this programmer module?

A: This module works with a wide range of microcontrollers and platforms including STM32, 51-series MCUs, AVR-based boards, and many other TTL-level serial devices that support 3.3V or 5V logic. It connects via standard USB and enumerates as a virtual COM port on Windows, macOS, and Linux.

Q: Do I need to install drivers to use the CH340C USB-TTL Programmer Module?

A: Most modern operating systems will automatically detect the CH340C chip and install the required drivers. If not, CH340 drivers are freely available online from the chip manufacturer's website. Once installed, the module appears as a standard serial (COM) port and is ready for use with your preferred programming or terminal software.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.