Always read and save the original data before erasing anything.
Supports thousands of 24xx, 25xx, 93xx, and 95xx series chips.
For legacy boards (Pre-2010, 3.3V SPI), direct connection works perfectly. neoprogrammer 2.1 0.19 ch341a
As the table shows, version 2.1.0.19 played a crucial role in stabilizing the detection logic for MicroWire EEPROMs (93Cxx series) and improving overall reliability [22†L9-L13]. Subsequent versions, such as 2.2.0.10 and the later 2026 releases, built upon this foundation by adding support for even more chips and refining the user interface.
If NeoProgrammer shows a disconnected status at the bottom right, Windows has not initialized the CH341A driver. Always read and save the original data before
: Ability to handle larger memory capacities that older software versions often fail to read correctly. Technical Specifications & Usage
For chips with OTP areas (like Winbond’s "Security Registers"), NeoProgrammer 2.1.0.19 allows reading/writing these separately. This is essential for MAC address storage or unique device IDs. As the table shows, version 2
: Users can click "Detect IC" to identify the connected chip’s manufacturer and memory capacity.