The PC16550DN from Texas Instruments is a highly versatile and reliable Universal Asynchronous Receiver/Transmitter (UART) Interface Integrated Circuit, designed for use in a broad range of data communication applications. This IC is particularly well-suited for enhancing the serial port capabilities of microcontroller-based systems, offering improved performance for serial data exchanges.

Key Features

• Enhanced Data Rates: The PC16550DN supports serial transmission speeds up to 1.5 Mbps, making it an ideal choice for high-speed serial data applications.
• FIFO Buffers: Equipped with 16-byte FIFO buffers for both transmit and receive operations, this IC helps to reduce the number of interrupts presented to the CPU, improving system efficiency.
• Programmable Baud Rate Generator: The baud rate generator is programmable and can be calibrated to generate a wide range of baud rates to accommodate various communication standards.
• Modem Control: It includes a complete set of modem control capabilities, allowing for full control over signal lines for modems and other similar communication devices.
• Flexible Character Lengths: The device can be programmed to handle character lengths from 5 to 8 bits, adding to its versatility in handling different data formats.
• Multiple Interrupt Levels: The PC16550DN supports multiple interrupt priority levels, which helps in managing system interrupts efficiently and ensures reliable data transfer.

Applications

The PC16550DN is suitable for a wide range of applications including, but not limited to:

• Serial data communication in embedded systems
• Point of Sale (POS) terminals
• Networking equipment such as routers and switches
• Industrial control and automation systems

Technical Specifications

The PC16550DN operates over a temperature range of 0°C to 70°C and is available in a PDIP-40 package. It is compliant with industry-standard 16450 and 16550 UARTs, ensuring compatibility with a wide range of existing software and hardware.

For more detailed technical information, datasheets, and support resources, please visit the Texas Instruments website or contact their customer support team.