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CH376S - USB Flash Disk and SD Card File Management IC SOP-28

Qinheng Microelectronics

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Manufacturer Part Number:
₹246.62 inc. GST
₹209.00 ex. GST
₹246.62 inc. GST
₹209.00 ex. GST


CH376 is a chip that helps manage files on USB flash drives or SD cards. It supports different communication interfaces, like 8-bit parallel port, SPI interface, or asynchronous serial port. This chip can be controlled by controllers like MCU/DSP/MPU to access files on U disk or SD card, or communicate with a computer.

  • Supports 1.5Mbps low speed and 12Mbps full speed USB communication
  • Compatible with USB V2.0; peripheral components only require crystal and capacitor
  • Supports USB-HOST host interface and USB-DEVICE device interface
  • Allows dynamic switching between host mode and device mode
  • Supports control transfer, bulk transfer, and interrupt transfer of USB devices
  • Automatically detects connection and disconnection of USB devices, providing event notifications
  • Provides a 6MHz SPI host interface, supporting SD card, MMC card, and TF card compatible with its protocol
  • Built-in USB control transfer protocol processor for simplifying common control transfers
  • Handles dedicated communication protocols for mass storage devices
  • Supports USB storage devices with Bulk-Only transport protocol and SCSI, UFI, RBC, or equivalent command set
  • Built-in FAT16, FAT32, and FAT12 file system management firmware
  • Supports U disk and SD card with a capacity of up to 32GB
  • Provides file management functions such as opening, creating, or deleting files, enumerating and searching files, creating subdirectories, and supporting long file names
  • Offers file read and write functions for multi-level subdirectories in units of bytes or sectors
  • Includes disk management functions like initializing disk, querying physical capacity, querying remaining space, and reading and writing physical sectors
  • Provides a 2MB speed 8-bit passive parallel interface for connecting to a single-chip microcomputer
  • Offers a 2MB/24MHz speed SPI device interface for connecting to a single-chip microcomputer via SPI serial bus
  • Provides an asynchronous serial port with up to 3Mbps speed, supporting a serial interface connected to a single-chip microcomputer with dynamic baud rate adjustment
  • Supports 5V, 3.3V, and 3V supply voltages, including low power mode
  • Fully compatible with CH372 chip in USB device mode; basically compatible with CH375 chip in USB host mode
  • Available in SOP-28 package

Technical Specifications

Qinheng Microelectronics

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.