CD74HCT280E Logic IC by Texas Instruments

The CD74HCT280E is a high-speed CMOS logic 9-bit parity generator/checker integrated circuit designed and manufactured by Texas Instruments. This device is part of the HCT family, which is designed to provide the electrical characteristics of CMOS devices and is compatible with the TTL logic levels. It is widely utilized in digital systems to ensure data integrity by detecting errors in data transmission or storage.

The CD74HCT280E features nine data input pins (D0 to D8), one even parity output (PE), and one odd parity output (PO). It generates a parity bit for every nine bits of input data. The even parity output is high when an even number of inputs are high, and the odd parity output is high when an odd number of inputs are high. This allows for the implementation of either even or odd parity systems depending on the requirements of the application.

Constructed in a 14-pin DIP (Dual In-line Package), the CD74HCT280E is suitable for through-hole mounting, which is commonly used in breadboards and other prototyping applications. This package style ensures easy handling and integration into various electronic circuits.

Key features of the CD74HCT280E include:

• Wide operating voltage range of 4.5V to 5.5V
• High output drive capability, with the ability to drive 10 LSTTL loads
• Low power consumption, with a typical power dissipation of 20µW
• High noise immunity characteristic of CMOS devices
• Typical propagation delay times of 13ns
• Functionally compatible with the LS280 logic IC

The CD74HCT280E is used in a variety of digital applications such as computer systems, data communication equipment, and digital instrumentation where reliable data processing is crucial. Its ability to perform real-time error checking makes it an essential component for enhancing system reliability and performance.

For designers and engineers looking for a robust and reliable parity generator/checker, the CD74HCT280E from Texas Instruments offers a proven solution that combines speed, low power consumption, and high noise immunity in a single package.