Introducing the TL16C554A Quad UART with Integrated Memory from Texas Instruments

The TL16C554A is a high-performance quad Universal Asynchronous Receiver/Transmitter (UART) with integrated 16-byte FIFOs, from the renowned semiconductor manufacturer, Texas Instruments. This versatile integrated circuit is designed to improve the performance of multi-serial port systems in a range of applications by reducing the CPU load and increasing system efficiency.

Each of the four UARTs within the TL16C554A has its own 16-byte transmit and receive FIFOs, which significantly increase data throughput by allowing the storage of multiple characters. This feature is particularly beneficial in systems where the CPU cannot service the UART immediately, as it helps to prevent data loss and reduces the number of required interrupts.

The device is fully programmable and compatible with the industry-standard TL16C550C. It offers a wide range of functions and features, including:

• Programmable baud rate generators
• Modem control capability
• Fully operational power-down mode
• 64-byte FIFOs (optional feature)
• Automatic in-band flow control using Xon/Xoff
• Automatic out-of-band flow control with CTS and RTS

The TL16C554A operates at a voltage range of 2.7 to 5.5 volts, making it suitable for various operating environments. Additionally, it is available in a 68-pin PLCC (Plastic Leaded Chip Carrier) or LQFP (Low-profile Quad Flat Package), providing flexibility for hardware design and layout.

With its robust feature set, the TL16C554A is an ideal solution for applications that require reliable, high-speed serial communications, such as:

• Industrial control systems
• Point-of-sale (POS) terminals
• Networking equipment
• Peripheral connectivity

Integrating the TL16C554A into your design will ensure efficient and reliable serial port expansion, backed by Texas Instruments' commitment to quality and long-term reliability. Whether you're upgrading existing systems or developing new ones, the TL16C554A provides the performance and features necessary for today's demanding communication requirements.