The ST16C654CQ100-0A-EB is a Quad Universal Asynchronous Receiver/Transmitter (UART) manufactured by Exar Corporation. This device provides four independent UART channels, each capable of asynchronous serial communication. It is commonly used in applications requiring multiple serial ports, such as multi-port serial cards, embedded systems, and communication devices.

Applications

• Multi-port serial cards
• Embedded systems requiring multiple serial interfaces
• Communication devices (e.g., routers, switches)
• Industrial automation equipment
• Point-of-sale (POS) systems

Features

• Four independent UART channels
• Data rates up to 1.5 Mbps
• 64-byte transmit and receive FIFOs per channel
• Automatic hardware/software flow control
• Interrupt identification

Benefits

• Increased system throughput with four independent UART channels.
• Reduced CPU overhead due to large FIFOs, minimizing interrupt servicing.
• Improved data reliability with automatic flow control.
• Simplified system design with integrated interrupt identification.
• High-speed communication supporting data rates up to 1.5 Mbps.

Additional Details

The ST16C654CQ100-0A-EB supports various serial communication parameters, including data bits, stop bits, and parity options. It features an internal oscillator or can use an external clock source. The 64-byte transmit and receive FIFOs significantly reduce CPU intervention, improving overall system performance. The automatic hardware and software flow control capabilities prevent data overrun and ensure reliable data transfer. The device is typically packaged in a 100-pin QFP package. The 0A-EB suffix likely relates to specific production or testing characteristics.