Texas Instruments

TL16C550CN

TL16C550CN Description

The TL16C550CN by Texas Instruments is a high-performance Universal Asynchronous Receiver Transmitter (UART) designed for reliable serial communication in embedded systems. This obsolete through-hole component operates within a 3V to 5.25V supply range, making it compatible with both 3.3V and 5V logic systems. It features a single-channel UART with a maximum data rate of 1Mbps, ensuring efficient data transmission for industrial and consumer applications. The device is ROHS3 compliant and REACH unaffected, adhering to environmental regulations while maintaining robust performance.

TL16C550CN Features

• 16-byte FIFOs: Reduces CPU overhead by buffering transmit/receive data.
• Auto Flow Control: Supports hardware (RTS/CTS) flow control for seamless communication.
• Modem Control: Includes modem interface signals (DTR, DSR, RTS, CTS) for peripheral connectivity.
• False Start Bit Detection: Enhances data integrity by identifying erroneous start bits.
• Wide Voltage Range (3V–5.25V): Ensures compatibility with mixed-voltage systems.
• Through-Hole Packaging (40-DIP): Simplifies prototyping and legacy system integration.

TL16C550CN Applications

The TL16C550CN is ideal for:

• Industrial Automation: Reliable serial communication in PLCs and control systems.
• Legacy Embedded Systems: Upgrading or maintaining older designs requiring DIP-packaged UARTs.
• Point-of-Sale (POS) Terminals: Stable data exchange with peripherals like barcode scanners.
• Telecom Equipment: Modem and dial-up communication interfaces.
• Test & Measurement Tools: Serial data logging and instrumentation.

Conclusion of TL16C550CN

The TL16C550CN stands out for its robust feature set, including FIFO buffering, auto flow control, and modem support, making it a versatile choice for serial communication tasks. While marked as obsolete, its through-hole design and wide voltage compatibility ensure continued utility in legacy systems and prototyping. Engineers seeking a reliable, high-speed UART with low CPU overhead will find this IC well-suited for industrial, telecom, and embedded applications.