The CDP65C51E2 is a CMOS Universal Asynchronous Receiver/Transmitter (UART) manufactured by Intersil Corporation. It is designed for serial data communication between a microprocessor or microcontroller and peripheral devices such as modems, printers, and other communication equipment. This UART is characterized by its low power consumption, making it suitable for battery-operated and portable applications.

Applications

• Serial Communication Interfaces: Used in systems requiring asynchronous serial data exchange.
• Modems: Employed in modem devices for data transmission and reception over telephone lines.
• Printers: Integrated into printers for communication with computers and other devices.
• Embedded Systems: Applied in embedded systems for serial communication with various peripherals.
• Data Acquisition Systems: Used to interface with serial data acquisition devices.

Features

• CMOS Technology: Low power consumption suitable for battery-powered applications.
• Programmable Baud Rate Generator: Allows for flexible selection of data transmission rates.
• Full Duplex Operation: Supports simultaneous transmission and reception of data.
• Start Bit, Stop Bit, and Parity Bit Generation and Detection: Provides error checking and synchronization capabilities.
• Interrupt Generation: Generates interrupts to signal the microprocessor of data reception or transmission completion.

Benefits

• Reduced Power Consumption: CMOS technology minimizes power requirements, extending battery life in portable devices.
• Flexible Communication Rates: Programmable baud rate generator supports a wide range of data transmission speeds.
• Reliable Data Transfer: Built-in error checking and synchronization features ensure accurate data transmission.
• Simplified System Design: Eases the design process by providing a pre-configured serial communication interface.
• Improved System Efficiency: Interrupt generation allows the microprocessor to handle other tasks while waiting for data transfer completion.

Additional Details

The CDP65C51E2 typically operates from a single 5V power supply. It supports various data formats including different word lengths, parity options, and stop bit configurations. The device is packaged in a standard DIP (Dual In-line Package) or surface mount package, facilitating easy integration into circuit boards. It is crucial to consult the Intersil datasheet for specific timing requirements, electrical characteristics, and configuration options to ensure proper operation within the intended application.