The ST16C550CP40 is a UART (Universal Asynchronous Receiver/Transmitter) manufactured by Exar Corporation. It's a single-channel UART designed to bridge the gap between serial and parallel interfaces. This device is frequently used in applications requiring serial communication, providing a flexible and reliable solution for data transmission.

Applications

• Industrial control systems
• Point-of-sale (POS) terminals
• Networking equipment
• Embedded systems
• Data acquisition systems
• Modems and other communication devices

Features

• Single UART channel
• Data rates up to 5 Mbps
• Programmable baud rate generator
• 16-byte FIFO (First-In, First-Out) transmitter and receiver buffers
• Automatic hardware/software flow control
• Modem control signals (CTS, RTS, DSR, DTR, RI, DCD)
• Interrupt generation
• Loopback mode for diagnostics
• 40-pin PDIP package

Benefits

• High-speed data transmission: Supports data rates up to 5 Mbps, enabling fast and efficient serial communication.
• Reduced CPU overhead: The 16-byte FIFOs significantly reduce CPU intervention, improving system performance.
• Flexible baud rate generation: Programmable baud rate generator allows for a wide range of baud rates to be selected, accommodating various communication standards.
• Reliable data transfer: Automatic flow control ensures reliable data transfer by preventing buffer overflow.
• Easy integration: The standard UART interface simplifies integration into existing systems.
• Diagnostic capabilities: Loopback mode enables easy testing and troubleshooting.

Additional Details

The ST16C550CP40 operates from a single 5V power supply. It supports 5, 6, 7, or 8 data bits, with even, odd, or no parity. It also supports 1 or 2 stop bits. The device is designed for use in a wide range of temperatures, typically from -40°C to +85°C. It is housed in a 40-pin PDIP (Plastic Dual In-line Package) for easy mounting and soldering.

Its compatibility with industry-standard UART protocols makes it a versatile choice for numerous serial communication applications. The internal FIFO buffers and flow control features contribute to robust and efficient data handling, essential for reliable system operation. The ST16C550 family is known for its widespread availability and strong technical support, making it a popular choice among design engineers.