The 74HCT147D is a high-speed Si-gate CMOS device designed and manufactured by NXP Semiconductors. This integrated circuit is part of the 74HCT family, which is known for its compatibility with TTL (Transistor-Transistor Logic) levels while offering the low power consumption and high noise immunity inherent to CMOS technology.

Key Features

• Priority Encoder: The 74HCT147D is a 10-to-4 line priority encoder. It encodes ten input lines to four output lines. The inputs and outputs are active high, and the device provides priority decoding of the inputs to ensure that only the highest-order data line is encoded.
• High-Speed Operation: This encoder is capable of high-speed operation, making it suitable for a wide range of applications that require fast data processing and encoding.
• Low Power Consumption: As a CMOS device, the 74HCT147D offers the benefit of low power consumption, which is crucial for energy-sensitive applications.
• TTL Compatible: The input levels are TTL compatible, which allows for easy interfacing with older TTL logic circuits, providing a convenient upgrade path without the need for level shifters.

Applications

The 74HCT147D is versatile and can be used in various digital systems. Typical applications include:

• Address decoding in memory control systems
• Data routing and signal processing
• Keyboard encoding
• Control logic in computing and telecommunication systems

Technical Specifications

The device is encapsulated in a standard SO-16 package, making it easy to handle and integrate into PCB designs. It operates over a broad voltage range and has a balanced propagation delay, ensuring reliable performance across different operating conditions.

Ordering Information

To order the 74HCT147D or to obtain more detailed specifications, please visit the NXP Semiconductors website or contact your local NXP sales office. The product is available in tube or tape and reel packaging, allowing for flexibility in order quantity and handling.

Quality and Reliability

NXP Semiconductors is committed to delivering high-quality products. The 74HCT147D is subjected to rigorous testing and quality control measures to ensure it meets the industry standards for reliability and performance.