CH376S

CH376 is a file manage control chip that allows MCU systems to read and write files from USB flash drives or SD cards. CH376 supports both USB-Device and USB-HOST modes. Install the USB communication protocol’s fundamental firmware on the inside. It also includes firmware for dealing with Mass-Storage devices, communication interface firmware for SD cards, and FAT16, FAT32, and FAT12 file system management firmware. It supports popular USB storage devices (including USB Flash Drives, USB hard discs, USB Flash memory, and USB read cards) as well as SD cards (contain SD card with standard capacity and HC-SD card with high capacity, MMC card and TF card compatible with protocol).

CH376 offers three additional features: 8-bit parallel, SPI, and asynchronous serial. DSP/MCU/MPU controllers use any interface to operate the CH376 chip, save and retrieve data from a USB Flash Drive or SD card, or communicate with a computer.
CH376’s USB-DEVICE Mode is fully compatible with CH372, but CH375’s USB-HOST Mode is only partially compatible with CH375.

Features
USB-HOST and USB-DEVICE Modes, which automatically transition between Host and Device Modes.
USB device control transfer, bulk transfer, and interrupt transfer are all supported.
Automatically detects and unplugs USB devices and sends a message to the USB host.
SPI host interface with 6MHz support, SD card, MMC card, and TF card protocol compatible.
Set the USB control transfer protocol manager in the inner to ease common control transmission.
Install firmware for a particular communication protocol related to mass storage. Supports Bulk-Only transfer protocol and USB storage devices of SCSI, UFI, RBC, and other comparable storage devices that support the bare minimum of commands, such as USB Flash Drive, USB HD, USB flash memory, and USB reader.

Set the file system management firmware of FAT16, FAT32, and FAT12, and support up to 32GB USB Flash Drive and SD Card.
Provide file management functions such as opening, creating, and deleting files, enumerating and searching files, creating sub-catalogs, and supporting extended file names.
Provide file read/write function: read/write file in the much longer sub-catalog using byte or fan as unit.
Supply disc management functions: initialise disc, query physical capacity, query spare space, read/write physical sectors
Supply an 8-bit passive parallel interface with a 2MB speed and the ability to connect a parallel data bus to an MCU.
SPI device interface with 2MB/24MHz speed, SPI serial bus connect to MCU support
Supply asynchronous serial interface with up to 3Mbps speed, serial interface connect to MCU, and automated communication adjustment