UMFT4222EV

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The UMFT4222EV is an interface module which belongs to the class of FTDI products. FTDI stands for Future Technology Devices International which is a UK-based semiconductor company. It specializes in developing and distributing multi-platform integrated circuit devices across a wide range of applications. The UMFT4222EV is also referred to as a dual-channel USB-UART bridge module.

This module enables a universal communication interface between a host processor and two distinct peripheral devices. It works as a bridge between two channels: the USB channel and the UART channel. It supports the USB 2.0 full-speed mode, the UART signaling at a rate of up to 1.5 Mbps and I2C clock rates up to 1 MHz.

The UMFT4222EV allows for a high performance and reliable communication between a PC or other host processor and two USB devices or two UART devices. It offers a degree of flexibility and can be used in a wide range of applications. These applications include:

• Industrial Automation: The module can be used to connect PLCs or other industrial devices to a computer.
• Dataloggers: It can be used to transmit data from dataloggers to a computer.
• Medical Devices: It can be used for communication between medical devices and a host processor.
• Product Evaluation: The module is suitable for evaluating USB and UART devices.
• Consumer Electronics: It can be used to communicate with consumer electronic devices.

The UMFT4222EV module is powered by a 3.3V to 5V operating voltage. Additionally, the module utilizes an inverted antenna input to provide additional ESD protection.

In terms of its operation, the UMFT4222EV module allows for data to be sent to and from the UART peripherals through the physical and logical connection made to the USB port. As part of the communication process, the module is responsible for providing protocol handling, data transfer, data storage, wake-up and wake-down, and variable/constant baud rate support.

In addition to protocol handling, the UMFT4222EV module also enables a two-channel communication interface. It has two instant-mating slots so that two universal UART cables can be connected at the same time, offering a convenient and high performance bridge connection. The module also has two USB connectors and two UART connectors.

The USB interface is responsible for driving the logic levels and mini-support slot protocols for USB 2.0 full speed and UP-stream and downstream communication. The UART interface on the other hand, enables the exchange of data between a source and a target, bidirectionally. The UART uses a bi-directional serial or parallel communication, which is used for local area data communication.

The UMFT4222EV module also supports multiple modes of communication. For instance, it supports Asynchronous mode, which allows for communication without the use of any external clock. Another mode is Synchronous mode, which is used for communication between computers and other devices which require external clocks. Other communication modes include serial, parallel, I2C, and SPI.

Overall, the UMFT4222EV is an ideal solution for a variety of applications that require reliable and high performance serial communications. By providing a bridge connection between two distinct devices, it enables a wide range of communication scenarios, offering a reliable and flexible channel for exchanging data.

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