CH341A USB Programmer

A USB programmer for 24/25-series EEPROM and SPI flash chips, with SOIC8/SOP8 clip support for reading, writing, erasing and verification.

Programmers

CH341A USB programmer with SOIC8 test clip, ribbon cable and adapter boards — FIG. 01 — CH341A programmer with SOIC8/SOP8 test clip and adapter boards.

My take

The CH341A is a compact USB programmer for compatible serial EEPROM and SPI flash memory. It can access socketed chips through its ZIF socket or connect to surface-mounted SOIC8/SOP8 packages with a test clip.

Typical operations include identifying supported chips, reading their contents, saving backups, erasing memory, writing images and verifying the result with software such as flashrom.

Field notes

Interface: USB
Protocols: I²C EEPROM / SPI flash
Supported chips: 24-series EEPROM and 25-series SPI flash
Access: ZIF socket or SOIC8/SOP8 test clip
Functions: Read, write, erase and verify
Software: flashrom and compatible CH341A tools