The CH341A USB Programmer is a versatile and reliable programming tool designed for EEPROM, BIOS, SPI Flash, I2C memory chips, and microcontroller programming applications. Built around the CH341A USB bus adapter chip, this programmer supports a wide range of 24 and 25 series EEPROM and SPI Flash ICs, making it an essential tool for electronics repair, BIOS recovery, firmware flashing, embedded development, and hardware debugging.

In addition to EEPROM and Flash programming, the CH341A also provides USB-to-TTL functionality, allowing communication with development boards, routers, modules, and microcontrollers. Its compact design, automatic chip recognition, and broad software compatibility make it a popular choice among electronics technicians, hobbyists, and embedded system developers.

Features:

• Based on genuine CH341A USB interface chip

• Supports 24 series EEPROM memory chips

• Supports 25 series SPI Flash memory chips

• Automatic recognition of most 25 series chips

• USB to TTL serial communication function

• Supports BIOS flashing and recovery

• Suitable for motherboard BIOS programming

• Supports STC microcontroller programming

• Supports firmware flashing and chip backup

• Compatible with 8-pin and 16-pin ICs

• Built-in status indicator LEDs

• SPI expansion interface support

• Compact and lightweight design

• Easy USB plug-and-play connection

• Ideal for repair and development applications

Applications:

• BIOS chip programming

• Motherboard BIOS repair

• EEPROM reading and writing

• SPI Flash memory programming

• Firmware backup and restoration

• Router firmware flashing

• Embedded system development

• STC microcontroller programming

• Hardware debugging

• Data acquisition projects

• USB to TTL serial communication

• Electronics repair workshops

• Laptop BIOS recovery

• Industrial control maintenance

• DIY electronics projects

Benefits:

• Fast and reliable chip programming

• Automatic chip detection

• Multi-function programmer and serial adapter

• Supports a wide range of EEPROM and Flash chips

• Compact and portable design

• Cost-effective programming solution

• Easy integration into repair workflows

• Suitable for professionals and hobbyists

How to Use:

• Install the CH341A driver on your computer.

• Connect the programmer to a USB port.

• Insert the EEPROM or Flash IC into the socket correctly.

• Open compatible programming software.

• Detect the chip automatically or select manually.

• Read, erase, verify, backup, or write firmware as required.

• For USB-to-TTL applications, connect TX, RX, GND, and power pins accordingly.

Product Instructions:

• Verify chip orientation before insertion.

• Use appropriate software compatible with the target IC.

• Avoid removing chips during programming.

• Ensure stable USB power during firmware writing.

• Use proper anti-static precautions when handling ICs.

• Confirm voltage compatibility before connecting external devices.

Specifications:

• Product Type: USB Programmer

• Chipset: CH341A

• Interface: USB

• Supported EEPROM Series: 24 Series EEPROM

• Supported Flash Series: 25 Series SPI Flash

• Supported IC Packages: 8-Pin and 16-Pin

• USB to TTL Function: Yes

• Automatic Chip Recognition: Yes (25 Series)

• STC MCU Programming Support: Yes

• SPI Expansion Interface: Yes

• Status Indicators: 24/25 Series Status LEDs

• Output Voltage: 5V / 3.3V Selectable

• Power Supply: USB Powered

• Dimensions: 70mm × 27mm

• Condition: New

Package Includes:

• 1 x CH341A USB Programmer

• 1 x 8-Pin IC Adapter/Socket

• 1 x 16-Pin IC Adapter/Socket

• 1 x Pin Header

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