79xxsarjan

The 79xx series is a family of integrated circuits designed by National Semiconductor, later acquired by Texas Instruments. These chips are part of the 7900 series, which includes various types of logic and interface devices. The 79xx series is particularly known for its use in serial communication interfaces, specifically for RS-232 and RS-422/485 protocols.

The 79xx series includes several models, each with specific features and capabilities. For example, the 7912 is a dual UART (Universal Asynchronous Receiver/Transmitter) device, capable of handling two independent serial communication channels. The 7951 is a single UART device designed for RS-422/485 communication, offering features such as automatic baud rate detection and error detection.

These chips are widely used in industrial and telecommunications applications where reliable serial communication is crucial. They are known for their robustness, low power consumption, and high noise immunity, making them suitable for harsh environments.

The 79xx series has been succeeded by more advanced and versatile communication ICs, but it remains a significant part of the history of serial communication technology. Its legacy continues to influence the design of modern communication interfaces.