VENDOR ID: 1A86. PRODUCT ID: 21019.
One of the most valuable "exclusive" features is that NeoProgrammer includes visual schematics for how to connect special ICs (like 93Cxx or specialized I2C) to the CH341A. 3. Faster and More Stable
: Often bundled with specialized drivers (PAR/EPP mode) required for the programmer to be recognized by Windows. The "Golden Rule" of BIOS Flashing
: Provides limited support for AVR MCU (ATmega, ATtiny), NUVOTON MCU , and ENE KB90xx Super IO chips, which are critical for laptop motherboard repairs.
: Ensure the jumper on the CH341A is set to Pins 1 and 2 to enable "Programmer Mode". neoprogrammer 21019 ch341a exclusive
For chips like the (Tuya Smart WiFi modules), the NeoProgrammer software allows direct SPI dumping and flashing, effectively acting as a low-cost debugging tool for smart home devices.
Launch NeoProgrammer.exe . Go to Settings > Hardware . Select (not SPI, not I2C). Under Voltage , select your physical adapter level. Check "Enable Exclusive Mode" if visible.
As of late 2024/early 2025, developers are working on , but the 21019 CH341A Exclusive remains the gold standard for stability. Future exclusive features hinted in developer changelogs include:
He plugged the CH341A into his terminal. The drivers—he had written them himself years ago—loaded instantly. VENDOR ID: 1A86
the original chip content twice and compare them with a hex editor before writing new data. Version Comparison NeoProgrammer 2.1.0.19 Newer Versions (e.g., 2.2.0.10) SPI NAND Initial protection bit handling. Adds support for spare area reading/writing. SST Chips Standard support. Improved programming speeds for SST class 25 chips. File Formats Standard .bin / .hex support. Added ASUS .CAP file conversion support.
Open the extracted folder and navigate to the Drivers/CH341A directory.
Would you like a step-by-step guide on installing or using a specific exclusive feature (e.g., quad‑SPI or auto‑detect)?
Step-by-Step Guide: Setting Up NeoProgrammer 2.1.0.19 with a CH341A : Ensure the jumper on the CH341A is
NeoProgrammer 2.1.0.19 functions as a standalone, portable utility. You do not need an installer—simply extract the archive and run the executable. Technical Metric Detail Specifications CH341A (Black/Green), CH347 Series Software Architecture Windows GUI, Portable Win32 app Driver Dependency CH341PAR driver (Parallel/SPI mode) Communication Modes SPI (up to 50 MHz), I2C, MicroWire, UART Exclusive Features Custom chip XML imports, schema display, pin status 💾 Extended Memory & Microcontroller Support Matrix
If you haven't used a CH341A on your machine before, open the Drivers \ CH341A folder inside the extracted directory and run setup.exe . This ensures proper communication with the programmer.
The software is the result of community-driven development, designed to replace the often broken or incomplete official Chinese software. It provides a modern graphical interface, a massive database of chip definitions, and advanced programming algorithms that transform a basic $10 dongle into a professional-grade flashing tool.