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PC16550DVEF from NSC,National Semiconductor

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PC16550DVEF

Manufacturer: NSC

PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs

Partnumber Manufacturer Quantity Availability
PC16550DVEF NSC 26 In Stock

Description and Introduction

PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs The **PC16550DVEF** from National Semiconductor is a high-performance **Universal Asynchronous Receiver/Transmitter (UART)** designed to facilitate reliable serial communication in embedded systems and computing applications. This integrated circuit (IC) is an enhanced version of the industry-standard 16550 UART, offering improved functionality and compatibility with legacy systems.  

Featuring a **16-byte FIFO buffer** for both transmit and receive operations, the PC16550DVEF reduces CPU overhead by minimizing interrupt requests during data transfers. It supports baud rates up to **1.5 Mbps**, making it suitable for high-speed serial interfaces. The component includes programmable serial characteristics such as data format, parity, and stop bits, ensuring flexibility across diverse communication protocols.  

Key applications include **modems, industrial controllers, networking equipment, and point-of-sale terminals**. The PC16550DVEF operates on a **5V supply** and is available in a **PLCC package**, providing robust performance in demanding environments. With its backward compatibility and advanced features, this UART remains a dependable choice for developers requiring efficient serial data handling.  

National Semiconductor's reputation for quality ensures that the PC16550DVEF meets stringent reliability standards, making it a trusted solution for serial communication needs.

Application Scenarios & Design Considerations

PC16550D Universal Asynchronous Receiver/Transmitter with FIFOs

Alternative Part Number

  • ST16C550CJ44 --: Pin-compatible UART with 16-byte FIFO, functionally equivalent to the PC16550 and widely used as a direct replacement.
  • TL16C550CFN --: Industry-standard 16550-type UART with 16-byte FIFO, same register set and PLCC package option, well supported and readily available.
  • XR16C850CM --: Enhanced 16550-compatible UART with larger FIFO and same software interface, suitable when higher performance or availability is needed.

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