The MC145408DWR2 is a silicon gate CMOS device manufactured by Freescale Semiconductor - NXP. It functions as a Universal Asynchronous Receiver Transmitter (UART) with a selectable data rate generator. This UART is designed to interface microprocessors or microcontrollers with serial communication channels.

Applications

• Serial Communication: Used in applications requiring asynchronous serial data transmission and reception.
• Microcontroller Interfacing: Provides a serial interface between microcontrollers and peripheral devices.
• Data Acquisition Systems: Employed in systems where data needs to be transmitted serially over a communication channel.
• Industrial Control Systems: Integrated into devices that require serial communication with other control units or sensors.
• Computer Peripherals: Utilized in devices such as modems, printers, and other serial communication peripherals.

Features

• Full-Duplex Operation: Supports simultaneous transmission and reception of data.
• Programmable Baud Rate: Allows for selection of different data transmission rates.
• Internal Baud Rate Generator: Includes an on-chip oscillator and divider for generating accurate baud rates.
• Parity Generation and Checking: Supports parity options for error detection during transmission.
• Line Break Generation and Detection: Provides the capability to generate and detect line break conditions.

Benefits

• Flexible Serial Communication: Supports a wide range of baud rates and data formats for versatile interfacing.
• Reduced System Complexity: Internal baud rate generator simplifies system design and reduces component count.
• Enhanced Data Integrity: Parity checking provides error detection capabilities to ensure data accuracy.
• Easy Integration: Standard serial interface facilitates seamless integration with microcontrollers and other devices.
• Reliable Operation: CMOS technology ensures low power consumption and high noise immunity.

Additional Details

The MC145408DWR2 includes features such as start bit detection, stop bit generation, and interrupt generation for efficient data handling. The device typically operates from a single power supply voltage, making it compatible with a wide range of systems. It supports various data formats, including different data bit lengths and parity options. The DWR2 suffix indicates the package type and specific manufacturing variations.

Detailed technical specifications include input/output voltage levels, operating temperature range, and timing characteristics. The datasheet provides information on the pinout, electrical characteristics, and application circuits, enabling designers to implement the device effectively. Freescale (now NXP) provides application notes and design resources to support the use of the MC145408DWR2 in various embedded systems.