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The HT68FB571 is a RGB LED MCU with USB interface. It doesn't require any additional external transistor. By using a scanning I/O drive, it can simultaneously interface up to 128 monochrome LEDs as well as keyboard scanning. It is suitable for PC peripheral applications, such as LED mouses, LED keypads, LED gaming keyboards, etc.
NOTE
The product image is for showing the product appearance, the pin count shown may not match the product pin count.