CH376S File manage and control chip / Integrated Circuit IC
Introduction:
CH376 is used as file manage control chip, used to MCU system
read/write file in USB Flash Drive or
SD card.
CH376 supports USB-Device Mode and USB-HOST Mode. Set the basic
firmware of USB
communication protocol in the inner. It is also set firmware of
special communication protocol to deal with Mass-Storage devices,
communication interface firmware of SD card, FAT16, FAT32 and FAT12
file system manage firmware in the inner. It supports common USB
storage devices (contains USB Flash Drive/USB hard disk/USB Flash
memory/USB read card) and SD cards (contain SD card with standard
capacity and HC-SD card with high capacity, MMC card and TF card
compatible with protocol). CH376 supports three communication
interfaces: 8-bit parallel, SPI interface or asynchronism serial
interface. DSP/MCU/MPU etc. controller via the any interface of
them to control CH376 chip, storage and get file in USB Flash Drive
or SD card, or communication with computer.
The USB-DEVICE Mode of CH376 is totally compatible with CH372, the
USB-HOST Mode of
CH375 is basically compatible with CH375.
Features;
Supports 1.5Mbps low-speed and 12Mbps full-speed, compatible with
USB V2.0, only needs crystal and capacitance external.
USB-HOST Mode and USB-DEVICE Mode, automatically switch Host Mode
and Device Mode.
Supports USB device control transfer, bulk transfer and interrupt
transfer.
Detects USB device plug and unplug automatically and sends message
to USB host.
Supply SPI host interface with 6MHz, supports SD card, MMC card and
TF card which compatible with protocol.
set protocol manager of USB control transfer in the inner to
simplify common control transfer.
Set up firmware of special communication protocol to do with
Mass-storage. Supports Bulk-Only
transfer protocol and USB storage device of SCSI, UFI, RBC and
other equivalent storage device which accommodates the minimum set
of command including USB Flash Drive, USB HD, USB flash memory and
USB reader.
Set file system manage firmware of FAT16, FAT32 and FAT12, support
the capacity up to 32GB USB Flash Drive and SD Card.
Supply file manage function: open, create or delete file, enumerate
and search file, create the sub-catalog, and support the long file
name.
Supply file read/write function: read/write file in the much long
sub-catalog take byte as unit or fan as unit.
Supply disk manage function: initialize disk, query physical
capacity, query spare space, physical sectors read/write.
Supply 8-bit passive parallel interface with 2MB speed, support
parallel data bus connect to MCU.
Supply SPI device interface with 2MB/24MHz speed, support SPI
serial bus connect to MCU.
Supply asynchronism serial interface up to 3Mbps speed, support
serial interface connect to MCU, support automatically adjust
communication baud-rate.
Source power is 5V or 3.3V, and low-power mode is supported.
USB-DEVICE Mode is totally compatible with CH372 chip, USB-HOST
Mode is basically compatible
with CH375 chip. Adoption SOP-28 and SSOP20 lead-free package,
compatible with RoHS, supplies diversion board from SOP28 to DIP28,
the pins of SOP28 are compatible with CH375.
| Package shape | Width of plastic | Pitch of pin | Instruction of package | Ordering type |
| SOP-28 | 7.62mm | 300mil | 1.27mm | 50mil | Small outline package of 28-pin | CH376S |
| SSOP-20 | 5.30mm | 209mil | 0.65mm | 25mil | Shrink small outline package of 20-pin | CH376T |
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