Product Overview: 74HC138PW from NXP

The 74HC138PW is a high-speed Si-gate CMOS device that is part of the 74HC/HCT family from NXP Semiconductors. This integrated circuit is designed to perform exceptionally well in decoding and multiplexing applications. It offers a 3-to-8 line decoder/demultiplexer with address latches, making it a versatile component for a wide range of electronic systems.

Key Features

• Logic Family: The device belongs to the 74HC family, known for its compatibility with TTL (Transistor-Transistor Logic) levels.
• Decoding Capability: It features a 3-to-8 line decoder with inverting outputs, providing an efficient solution for converting binary information to select one of eight output lines.
• Multiple Enable Inputs: The 74HC138PW comes with three enable inputs (E1, E2, and E3), two active LOW and one active HIGH, which must be satisfied to enable the device.
• High Noise Immunity: The device exhibits high noise immunity characteristic of CMOS devices, ensuring stable operation under noisy conditions.
• Power Efficiency: With a typical low power consumption, it is suitable for battery-operated and power-sensitive applications.
• Package Type: This product is offered in a TSSOP16 (thin shrink small outline package) with 16 pins, providing a compact footprint for space-constrained applications.

Applications

The 74HC138PW is used in a broad range of applications including, but not limited to:

• Computer systems for address decoding
• Memory chip selection
• Data routing
• Control systems
• Communication systems

Technical Specifications

Attribute Details Supply Voltage Range 2.0 to 6.0 V Operating Temperature -40°C to +125°C Propagation Delay Time Typically 19 ns at V<sub>CC = 4.5 V, C<sub>L = 15 pF, T<sub>a = 25°C Output Current High/Low: ±5.2 mA

The 74HC138PW from NXP is a robust and reliable choice for designers looking to implement efficient decoding schemes within their digital systems.