Automotive enthusiasts use this setup to read airbag crash data or odometer memory from 93LC46 EEPROMs. The exclusive version fixes the "Address overflow" bug present in older software when reading 16-bit organization modes.

| Feature | Stock CH341A Prog. | AsProgrammer (v1.4) | NeoProgrammer 21019 Exclusive | | :--- | :--- | :--- | :--- | | Chip Database | < 100 | ~500 | 1,200+ | | 1.8V Support | No | Partial | Full (Exclusive) | | NAND Flash Support | No | No | Yes | | AVR Programming | No | No | Yes (via SPI) | | Scripting/Automation | No | Basic | Advanced LUA | | Price | Free (w/ hardware) | Free | Free (Exclusive build) |

NeoProgrammer is an enhanced fork of the older CH341A Programmer software. Version 2.1.0.19 brings several exclusive improvements for CH341A hardware.

Launch NeoProgrammer.exe. Go to Settings > Hardware. Select CH341A (not SPI, not I2C). Under Voltage, select your physical adapter level. Check "Enable Exclusive Mode" if visible.

Unlike the freeware versions that "verify" superficially, this exclusive build performs a bit-by-bit XOR verification post-write. It generates a detailed log file (CRC32 checksums) so you can prove a chip was programmed correctly—essential for commercial repair shops.

One unique feature of v21019 is the ability to blacklist specific chip IDs. If you encounter a counterfeit chip that reports a false ID, you can manually override the software to force a specific read/write algorithm.