The XR16C2850IJ is a dual universal asynchronous receiver/transmitter (UART) with a 64-byte FIFO (First-In, First-Out) from Exar Corporation. It is designed for serial communication applications where reliable and efficient data transfer is required.

Applications:

• Serial Communication Ports: Used to add serial communication ports to computers, embedded systems, and other devices.
• Modems: Employed in modems for serial data communication.
• Printers: Utilized in printers for communication with the host computer.
• Point-of-Sale (POS) Systems: Used in POS terminals for serial communication with peripherals such as barcode scanners and receipt printers.
• Industrial Control Systems: Implemented in industrial equipment for serial communication with sensors, actuators, and other devices.

Features:

• Dual UART: Provides two independent UART channels.
• 64-Byte FIFO: Large FIFO buffers reduce CPU overhead and improve data throughput.
• Data Rates Up to 5 Mbps: Supports high data rates for fast serial communication.
• Automatic Hardware/Software Flow Control: Includes automatic flow control mechanisms to prevent data overflow.
• Programmable Baud Rate Generator: Allows for flexible baud rate selection.
• Interrupt Generation: Generates interrupts to signal data reception, transmission completion, and error conditions.
• Modem Control Signals: Provides modem control signals for interfacing with modems.

Benefits:

• Increased Throughput: Large FIFO buffers and high data rates improve data throughput.
• Reduced CPU Overhead: Automatic flow control and interrupt generation reduce CPU overhead.
• Flexible Communication Options: Programmable baud rate generator allows for flexible communication settings.
• Reliable Data Transfer: Hardware flow control ensures reliable data transfer.
• Easy Integration: Simple interface simplifies integration into embedded systems.

Technical Specifications: The XR16C2850IJ operates with a supply voltage of 3.3V or 5V and is available in various package options. Refer to the datasheet for detailed electrical characteristics, timing diagrams, and pinout information.