Abstract: A flash storage chip including a single circuit board, a microcontroller, a flash memory, and a peripheral component interconnect express (PCI Express) connecting interface is provided. The microcontroller, the flash memory, and the PCI Express connecting interface are embedded on the single circuit board, and the microcontroller has a flash memory interface and a PCI Express interface. When a host writes a data into the flash storage chip, the microcontroller receives the data though the PCI Express interface and stores the data into the flash memory though the flash memory interface. When the host reads a data form the flash storage chip, the microcontroller reads the data from the flash memory though the flash memory interface and transmits the data to the host though the PCI Express interface and the PCI Express connecting interface.

Abstract: The invention provides a flash memory integrated circuit device that is connectable to a computer via a universal serial bus. The universal serial bus (USB) has become a standard serial interface, which allows data to be stored in and read from an external memory device at high speed. Therefore, it is advantageous to combine the benefits of a flash memory device with the speed of the universal serial bus. In addition, by designing the flash memory device with a USB interface, the flash memory device appears as a standard USB storage device, which permits the host and flash memory device to connect and interact with ease.