The ST16C654IJ68 is a quad universal asynchronous receiver/transmitter (UART) with enhanced features designed for high-speed data communication. Manufactured by Exar Corporation, this UART provides four independent channels, each capable of transmitting and receiving data asynchronously. It is often used in applications requiring multiple serial communication ports.

Applications

• Multi-port serial communication cards
• Industrial automation systems
• Point-of-sale (POS) terminals
• Data acquisition systems
• Embedded systems requiring multiple serial interfaces

Features

• Quad UART: Four independent serial communication channels
• Data rates up to 16 Mbps
• 64-byte FIFO (First-In, First-Out) buffer per channel
• Automatic hardware/software flow control
• Programmable baud rate generator
• Interrupt controller
• JEDEC 68-PLCC package

Benefits

• Increased system throughput with four independent UART channels.
• High-speed data transfer with support for data rates up to 16 Mbps.
• Reduced CPU overhead due to large FIFO buffers that minimize interrupt frequency.
• Reliable data communication with automatic hardware/software flow control.
• Flexible baud rate selection with programmable baud rate generator.
• Simplified interrupt handling with integrated interrupt controller.
• Industry-standard JEDEC 68-PLCC package for easy integration.

Additional Details

The ST16C654IJ68 UART features a 64-byte FIFO buffer for both transmit and receive channels, which significantly reduces the CPU overhead required for managing serial data transfer. The automatic hardware and software flow control mechanisms prevent data overrun and underrun errors, ensuring reliable communication. The programmable baud rate generator allows for precise selection of data transmission rates. The integrated interrupt controller simplifies interrupt handling, enabling efficient response to communication events. The JEDEC 68-PLCC package provides a standard interface for easy integration into various systems. For detailed information on pin assignments, register descriptions, and timing characteristics, refer to the device datasheet provided by Exar Corporation.