The XR16C2550IM is a dual universal asynchronous receiver/transmitter (UART) with 16-byte FIFOs manufactured by Exar Corporation. It is designed for serial communication in a wide range of applications, including computer peripherals, industrial control, and data acquisition systems. This UART provides a reliable and efficient means of transmitting and receiving serial data, with features such as automatic flow control and data buffering.

Applications

• Serial port expansion
• Modem interfaces
• Embedded systems
• Data acquisition systems
• Industrial control systems

Features

• Dual UART channels
• 16-byte transmit and receive FIFOs
• Data rates up to 5 Mbps
• Automatic hardware and software flow control
• Programmable baud rate generator
• Interrupt controller
• Multiple interrupt sources

Benefits

• Improved system performance with high-speed serial communication.
• Reduced CPU overhead with large FIFOs and automatic flow control.
• Simplified system design with a complete UART solution.
• Enhanced system reliability with built-in error detection and correction.
• Flexible configuration through programmable baud rate and flow control options.

Additional Details

The XR16C2550IM operates from a 3.3V or 5V power supply. It incorporates a programmable baud rate generator that allows for precise control of the serial data rate. The automatic hardware and software flow control mechanisms prevent data loss by managing the data flow between the UART and the host system. The interrupt controller provides multiple interrupt sources, allowing the host system to respond quickly to important events. The device is available in various package options, including QFP and SSOP, allowing for flexible integration into different system designs. Its combination of dual channels, large FIFOs, and automatic flow control makes it a versatile choice for many serial communication applications.