Storage module

The utility model provides a storage module which comprises a microcontroller, an NAND FLASH storage chip, a USB-to-serial port chip, an RS232 interface, a USB interface, a CAN transceiver, a CAN bus interface, a wake-up circuit and a power circuit, wherein the microcontroller comprises a USB controller, a CAN controller, an NANDFLASH controller, an external storage expansion interface and at least two serial-port interfaces, wherein the USB controller is connected with the at least two serial-port interfaces; the USB-to-serial port chip is connected to between one serial-port interface and the RS232 interface, and the USB interface is connected with the other serial-port interface; the CAN transceiver is connected between the CAN controller and the CAN bus interface, and the CAN bus interface is connected with a CAN bus system in an electric vehicle; the NAND FLASH controller is connected with the NAND FLASH storage chip through the external storage expansion interface; the wake-up circuit is connected between the microcontroller and the power circuit; and the power circuit comprises a power supply protection circuit and a DC(direct current)-DC power module, and the power supply protection circuit is connected between the storage battery and the DC-DC power module in the electric vehicle.