The ST16C550CQ48TR-F is a single-channel UART (Universal Asynchronous Receiver/Transmitter) manufactured by Exar Corporation. The designation 'CQ48' indicates a 48-pin surface mount package, typically a QFP (Quad Flat Package) while 'TR' signifies Tape and Reel packaging for automated assembly. The '-F' indicates a lead-free version. This device is a key component in systems requiring serial communication, offering a flexible interface between serial and parallel data.

Applications

• Embedded systems
• Serial communication ports
• Industrial control systems
• Networking devices
• Point-of-Sale (POS) terminals
• Data acquisition equipment

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
• 48-pin QFP package (CQ48)
• Tape and Reel packaging (TR)
• Lead-free (F)

Benefits

• High-speed data transmission: Supports data rates up to 5 Mbps, facilitating efficient serial communication.
• Reduced CPU overhead: The 16-byte FIFOs significantly reduce CPU intervention, enhancing overall system performance.
• Flexible baud rate generation: Programmable baud rate generator allows for a wide range of baud rates to be selected.
• Reliable data transfer: Automatic flow control ensures reliable data transfer by preventing data loss due to buffer overflow.
• Easy integration: The standard UART interface simplifies integration into existing systems.
• Diagnostic capabilities: Loopback mode facilitates easy testing and troubleshooting.
• Automated Assembly: Tape and Reel packaging supports automated assembly processes, reducing manufacturing time and cost.
• Environmental Compliance: Lead-free design meets RoHS standards.

Additional Details

The ST16C550CQ48TR-F operates from a single 5V power supply. It supports 5, 6, 7, or 8 data bits, with even, odd, or no parity, and 1 or 2 stop bits. The 48-pin QFP package is suitable for surface mount assembly, offering a compact footprint. The tape and reel packaging allows for automated pick-and-place during PCB assembly. The lead-free nature of the device makes it compliant with environmental regulations.

Its adherence to industry-standard UART protocols ensures wide compatibility across different systems. Internal FIFO buffers combined with flow control enhance data handling, critical for robust system operation. This part is often used in applications requiring high-speed serial communication with automated manufacturing processes and adherence to environmental standards.