The XR16V554IV80 is a quad Universal Asynchronous Receiver/Transmitter (UART) with a 32-byte FIFO, designed for high-speed serial communication in various applications. Manufactured by Exar Corporation, it supports data rates up to 3 Mbps and offers automatic hardware and software flow control for reliable data transfer.

Applications:

• Multi-port serial cards
• Embedded systems
• Industrial automation equipment
• Point-of-Sale (POS) systems
• Networking devices
• Modems

Features:

• Quad UART channels
• Data rates up to 3 Mbps
• 32-byte transmit and receive FIFOs
• Automatic hardware (RTS/CTS) and software (Xon/Xoff) flow control
• 5, 6, 7, or 8 data bits
• 1 or 2 stop bits
• Programmable baud rate generator
• Modem control signals
• Sleep mode with wake-up indicator

Benefits:

• Enables simultaneous communication across four serial channels, increasing system throughput.
• High data rates ensure efficient data transfer in demanding applications.
• Large FIFOs reduce CPU overhead and improve system performance.
• Automatic flow control prevents data loss and ensures reliable communication.
• Low power sleep mode minimizes energy consumption in battery-powered applications.

Additional Details:

The XR16V554IV80 operates from a 3.3V or 5V power supply. It supports a wide range of serial communication protocols and is designed for easy integration into various systems. The device includes interrupt control capabilities, allowing for efficient handling of serial communication events. Its robust feature set and reliable performance make it an ideal solution for multi-port serial communication applications.