(China (Mainland))
Product Summary
The CH375B is an USB bus universal interface chip, which supports USB-HOST Mode and USB-DEVICE/SLAVE Mode. There are 8-bit data bus and read, write, chip select control wire and interrupt output in CH375B. It is convenient to link CH375B to control system bus of MCU/DSP/MPU. The device also provides serial communication in USB-HOST mode. It connects with DSP/MCU/MPU through serial input, output and interrupt output. The USB device mode of CH375B is compatible with CH372, and CH375B incorporates all functions of CH372.
Parametrics
CH375B absolute maximum ratings: (1)Ambient operating temperature: -55 to 125℃ at VCC=3.3V; (2)Storage temperature: -55 to 125℃; (3)Voltage source (VCC connects to power, GND to ground): -0.5 to 6.5 V; (4)The voltage of input or output pin: -0.5 to VCC+0.5 V.
Features
CH375B features: (1)Full-speed USB-HOST interface, conforms to USB Specification Version 2.0, only needs crystal and capacitance external.; (2)Full-speed USB device interface, compatible with CH372, supports exchanging USB-HOST mode and USB-DEVICE/SLAVE mode dynamically; (3)Input and output buffers of host endpoint occupy 64-byte respectively, supports common full-speed USB device with 12Mbps and low-speed device with 1.5Mbps; (4)Supports USB device control transfer, bulk transfer and interrupt transfer; (5)Detects USB device plug and unplug automatically and sends message to USB host; (6)Configures protocol processor control transfer inside to simplify usual control transfer.
Diagrams
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 CH372 |
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Data Sheet |
Negotiable |
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CH374 |
Other |
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Data Sheet |
Negotiable |
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