CH341A USB BIOS Programmer with LCD – Supports MX25L6405 / W25Q64 / 24 & 25 Series Flash ICs

CH341A USB BIOS Programmer with LCD – Supports MX25L6405 / W25Q64 / 24 & 25 Series

The CH341A USB programmer is the most widely used low-cost BIOS and flash memory programmer – a USB device that reads and writes SPI NOR flash (25 series) and I²C EEPROM (24 series) ICs directly from a PC via USB. This version includes an LCD display for status feedback. Compatible with the most common BIOS chips (MX25L6405, W25Q64, W25Q32, and hundreds more), it's the essential tool for BIOS recovery, firmware flashing, and IC programming without a dedicated programmer.

Programmer Specifications

• Programmer IC: CH341A (WCH)
• Interface: USB 2.0 (appears as USB serial device)
• Supported IC Families:
  • 25 series SPI NOR Flash: W25Qxx (Winbond), MX25Lxx (Macronix), GD25Qxx (GigaDevice), S25FLxx (Spansion), EN25Qxx (EON), and more
  • 24 series I²C EEPROM: 24C01 through 24C512 (all capacities)
• Socket: SOP-8 ZIF socket (for SOP-8 ICs) + DIP-8 socket
• Clip Support: Compatible with SOP-8 test clip for in-circuit programming
• Display: LCD status display
• Power: USB bus-powered (5V from USB)
• Software: AsProgrammer, NeoProgrammer, or CH341A Programmer (free, Windows)
• Operating System: Windows 7/8/10/11

Supported Flash ICs (Examples)

• Winbond: W25Q16, W25Q32, W25Q64, W25Q128, W25Q256
• Macronix: MX25L1606, MX25L3206, MX25L6406, MX25L12806
• GigaDevice: GD25Q32, GD25Q64, GD25Q128
• EEPROM: 24C01, 24C02, 24C04, 24C08, 24C16, 24C32, 24C64, 24C128, 24C256, 24C512

Typical Use Cases

• BIOS recovery: Re-flash a corrupted BIOS chip after a failed update
• BIOS modding: Flash custom BIOS for overclocking or feature unlocking
• Router firmware: Read/write router firmware flash chips
• EEPROM programming: Program 24Cxxx EEPROMs for automotive and consumer electronics repair
• IC backup: Read and backup flash IC contents before repair
• Blank IC programming: Program new blank flash ICs with firmware images

In-Circuit Programming Note

For in-circuit programming (without removing the IC from the board), use an SOP-8 test clip connected to the programmer. Ensure the target board is powered off and the programmer provides the only power to the flash IC via the clip.

Package Contents

• 1 × CH341A USB BIOS programmer with LCD
• SOP-8 ZIF socket adapter
• USB cable

The essential BIOS recovery and flash programming tool – the CH341A reads and writes hundreds of SPI NOR flash and I²C EEPROM ICs via USB for BIOS recovery, firmware flashing, and IC programming.

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