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Elias traced the edge of the label with a calloused thumb. The handwritten text had faded over time, leaving only the ghost of an inscription: USB Drive CH341 3.1 .
The entire chip, including I/O buffers, now runs at 3.3V. You will no longer be able to program 5V-only legacy parallel EEPROMs (rare), but your 3.3V SPI flash will be perfectly safe. usb drive ch341 3 1
What are you trying to accomplish with the chip? (e.g., flashing a BIOS, unbricking a router, reading an EEPROM) What operating system are you planning to use? Elias traced the edge of the label with a calloused thumb
Which (Windows, Linux, macOS) are you using for this project? including I/O buffers
