MCP2221AT-I/STVAO

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active

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Introduction of MCP2221AT-I/STVAO

MCP2221AT-I/STVAO is an USB to I2C/UART specialized interface controller which enables a one-way bridge between USB and I2C/UART interface. It is part of the Microchip range and provides bridging functionality between USB, I2C and serial UART for enhanced data communication and interfacing.

Application field and Working Principle of MCP2221AT-I/STVAO

MCP2221AT-I/STVAO is suitable for several applications including automotive, industrial, medical, instrumentation and consumer electronics. The device is also very suitable for human interface devices such as keyboards, mice, and joystick controls.The major applications for this controller are for general system control, host interface communication, and I2C/UART bridging. With the integrated 128-byte Non-Volatile Memory (NVM), users can programmatically store data and configuration registers in the device.MCP2221AT-I/STVAO works on a basic principle of USB-to-serial bridging and I2C-to-UART bridging. The device works by using a set of specific commands which are sent over the USB port to program and interface the I2C and UART interfaces. The device consists of a USB port, and a bridge controller that uses USB-Descendants-2 (CDC) protocol to bridge data from the PC through USB to the serial I2C or UART peripheral devices.The MCP2221AT-I/STVAO also supports an optional provision for an external isolation device with a USB side, powered from the micro-controller side, with a set of pin connections. This MCP2221AT-I/STVAO device can be powered via USB or external power supply. It provides a fully isolated power to the USB side which can be used to power USB peripheral devices.

Features of MCP2221AT-I/STVAO

The MCP2221AT-I/STVAO offers a wide range of features and flexibility to aid design implementation. It offers a USB 2.0 high-speed full-speed operation and supports full-speed and low-speed control. It is also compatible with multiple operating systems such as Windows, Linux and Mac OSX.The device provides an available communication interface at the USB side of the bridge with an integrated USB-Descendant-2 (CDC) protocol. The I2C/UART data is transferred over the USB using CDC standard protocol (Handsfree Control Model).The MCP2221AT-I/STVAO device offers compatibility with multiple types of I2C/UART peripherals and offers a special feature such as integrated noise filters for protecting the I2C/UART interface from fluctuating electromagnetic noise.The device includes integrated power and signal switching and offers 5V single supply operation and onboard voltage Translation. Finally, the device features programmable dual-channel PWM generation.

Conclusion

MCP2221AT-I/STVAO is a dedicated USB-to-I2C/UART interface controller available from Microchip with a wide range of features and flexibility. It can facilitate bridging between USB, I2C and serial UART for enhanced data communication and interfacing. It is suitable for various applications including automotive, industrial, medical, instrumentation and consumer electronics. It offers multiple features such as optional provision for an external isolation device, integrated power and signal switching, 5V single supply operation and onboard voltage Translation, and programmable dual-channel PWM generation.

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