Kapacita twentytwouF
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Description
UART-USB HID Keyboard module
UART to HID Keyboard module
CH9328 is a serial UART to HID keyboard chip that is identified as a standard USB HID keyboard device on computers.
Features:
- Supports 12Mbps full-speed USB device interface, USB 2.0 compatible, built-in crystal oscillator.
- Default serial communication baud rate is 9600bps, which supports multiple serial communication formats and common baud rate settings.
- Supports 5V and 3.3V power supply voltages.
- Supports configuration of VID, PID, and various USB string descriptors of the chip.
- Supports configuration of default baud rate of the chip.
- Complies with USB related specifications and HID device related specifications.
- Multiple operating modes to apply to different requirements, can simulate full keyboard function.
- RoHS compliant SOP16 lead-free package.
For CH9328 V1.4 and above, has integrated crystal oscillator, so X1, C1, C2 are not required and it is recommended to reserve location.
Video :
Schematic and Layout
scheme
schema.png
Jan 15,2025
1,192 views
UART-USB HID Keyboard module
2 Layers PCB 16 x 40 mm FR-4, 1.6 mm, 1, HASL with lead, Black Solder Mask, White silkscreen
UART to HID Keyboard Chip CH9328.
CH9328 is a serial UART to HID keyboard chip
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Published: Jan 15,2025
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