The ST16C650CP is a UART (Universal Asynchronous Receiver/Transmitter) manufactured by Exar Corporation. The 'CP' likely refers to the package type, typically a DIP (Dual In-line Package). It is a single-channel UART designed for asynchronous serial communication, often used in applications requiring reliable data transfer between devices.

Applications

• Computer serial ports
• Embedded systems requiring serial communication
• Modems and other communication peripherals
• Industrial control equipment
• Point-of-Sale (POS) systems
• Data acquisition systems

Features

• Single UART channel
• Data rates up to 5 Mbps
• Programmable baud rate generator
• 32-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

Benefits

• High-speed data transmission: Supports data rates up to 5 Mbps, enabling fast and efficient serial communication.
• Reduced CPU overhead: The 32-byte FIFOs significantly reduce CPU intervention, improving system performance, and offering improved handling compared to the ST16C550 series.
• 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 ST16C650CP 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 housed in a DIP package which facilitates through-hole mounting. Compared to the ST16C550, the ST16C650 offers larger 32-byte FIFO buffers providing more efficient data handling.

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. It's a suitable choice for applications where longer FIFO buffers are needed to further reduce CPU overhead.