Product Overview: 74HC138D by NXP

The 74HC138D is a high-speed Si-gate CMOS device and is pin compatible with low-power Schottky TTL (LSTTL). Manufactured by NXP Semiconductors, it is part of the 74HC series, known for its robust performance and compatibility with a wide range of digital applications.

Key Features

• 3-to-8 Line Decoder/Demultiplexer: The 74HC138D is designed to take a 3-bit binary input and decode it into one of eight output lines, effectively demultiplexing the input into a single active output.
• Multiple Enable Inputs: It includes three enable inputs: two active-low (E1, E2) and one active-high (E3). All three must be satisfied to enable the device's decoding function.
• Low Power Consumption: This device combines the low quiescent power dissipation and high noise immunity characteristic of CMOS devices, with speeds similar to LSTTL.
• Wide Operating Voltage: The 74HC138D operates on a wide range of voltages from 2V to 6V, making it a versatile choice for various electronic circuits.
• High Noise Immunity: The inherent characteristics of CMOS technology provide a significant advantage in terms of noise immunity, ensuring stable performance in electrically noisy environments.

Applications

The 74HC138D is widely used in digital systems where low power, high speed, and efficiency are required. Common applications include:

• Memory decoding or data routing
• Control systems
• Computer systems
• Instrumentation and test equipment
• Communication systems

Package and Quality

The device is offered in a SOIC-16 package, ensuring a compact footprint suitable for space-constrained applications. The 74HC138D is also characterized for operation from -40°C to +125°C, catering to a broad range of temperature conditions. NXP's commitment to quality means that this product meets stringent industry standards for performance and reliability.