CP2108-B03-GM

CP2108-B03-GM Application Field and Working Principle

The CP2108-B03-GM is a Universal Serial Bus (USB) to General Purpose Input/Output (GPIO) bridge controller, which is primarily used for bridging communication between a USB host underlying software or host system and digital switches, relays, MCUs, and other I/O peripherals.

It is equipped with:

• A built-in 32-bit ARM Cortex M0 microcontroller (MCU) with 64KB flash and 12KB RAM
• An integrated USB2.0 Host/Device Interface
• An 8-bit GPIO data port with up to 20 GPIO pins providing up to 5V voltage levels
• A selectable bus speed of 8Mhz, 12Mhz, or 16Mhz
• A maximum current draw of 200mA per pin

The CP2108-B03-GM is primarily used as an interface solution for applications that require a fast, low-cost, and low latency tool for communication. For example, connected to a host system, it can be used to control relays, motors, lights, and microprocessors in both production and development environments.

Working Principles

The CP2108-B03-GM uses an integrated USB2.0 Host/Device Interface to communicate between the USB host and the 8-bit GPIO data port. The 8-bit GPIO data port has up to 20 GPIO pins providing up to 5V voltage levels for reliable connections, and the maximum current draw is 200mA per pin. The bridge controller supports selectable bus speeds of 8, 12, or 16Mhz, providing fast data transfers and low latency communication.

The built-in 32-bit ARM Cortex M0 microcontroller (MCU) gives the CP2108-B03-GM built-in functions to simplify complex tasks. Using the integrated MCU, the USB host system can be programmed to control and configure the GPIO data port as needed, allowing flexibility to create complex I/O projects with ease.

Other features of the CP2108-B03-GM include: a 3.3V or 5V power and signal logic for the USB host system, and programmable settings for the internal Bus (I2C, SPI, UART, etc) and peripheral Configuration settings.

Conclusion

The CP2108-B03-GM Interface Controller is a low-cost, flexible, and reliable solution for bridging communication between the USB host system and other I/O peripherals. With its integrated 32-bit ARM Cortex M0 microcontroller, higher bus speeds to reduce latency, and programmable settings, the CP2108-B03-GM is the perfect choice for both industrial and research and development applications.