Product Overview: CD54HCT138F High-Speed CMOS Logic 3-to-8 Line Decoder/Demultiplexer

The CD54HCT138F is a high-performance, integrated circuit produced by Texas Instruments, designed to operate as a 3-to-8 line decoder or demultiplexer. This device is part of the HCT (High-speed CMOS logic) family, which is known for its robustness and compatibility with TTL (Transistor-Transistor Logic) circuits. The CD54HCT138F is particularly suitable for applications that require the decoding or demultiplexing of signals, making it an essential component in digital systems where efficient data routing is crucial.

Constructed with silicon gate CMOS technology, the CD54HCT138F offers the advantage of operating with the low power consumption characteristic of CMOS devices, while also maintaining the ability to interface with TTL logic levels. This makes the CD54HCT138F a versatile choice for interfacing with various types of digital circuits without the need for additional level-shifting components.

The device features three binary select inputs (A, B, and C), an enable input (G1), and two active-low enable inputs (G2A and G2B). These inputs collectively control the eight mutually exclusive outputs. When the enable inputs are appropriately activated, the selected output will go low based on the binary value of the select inputs. This functionality is essential for applications like memory chip selection, data routing, and control signal generation.

With its wide operating voltage range of 4.5V to 5.5V, the CD54HCT138F is designed to perform reliably in a variety of environments and is particularly suited for operation in the industrial temperature range. The device is offered in a durable ceramic flat package, ensuring robustness and long-term reliability, which is vital for industrial and mission-critical applications.

Key features of the CD54HCT138F include:

• High-speed CMOS logic operation
• Low power consumption
• Compatibility with TTL levels
• Three select inputs for flexible addressing
• Multiple enable inputs for control and cascading
• Wide operating voltage range for versatile use
• Industrial temperature range suitability
• Durable ceramic packaging for enhanced reliability

Overall, the CD54HCT138F from Texas Instruments is a reliable and efficient solution for designers who require a high-speed, low-power 3-to-8 line decoder/demultiplexer that is compatible with both CMOS and TTL logic levels.