ON Semiconductor MC74ACT138DR2G Decoder/Demultiplexer

The MC74ACT138DR2G is a high-performance, 3-to-8 line decoder/demultiplexer fabricated by ON Semiconductor, a leader in energy-efficient innovations. This integrated circuit is designed to address the need for efficient data distribution and multiplexing in various digital systems. It is part of the AC/ACT series, which is known for its high-speed operation while maintaining the CMOS low power dissipation.

This decoder features three binary select inputs (A, B, and C) and eight mutually exclusive outputs (Y0 to Y7). When the device is enabled, the selected output will go low based on the binary value applied to the inputs. The MC74ACT138DR2G is particularly useful in applications where decoding is required for the selection of memory blocks, I/O ports, and other similar functions.

With its advanced silicon-gate CMOS technology, the MC74ACT138DR2G offers high noise immunity and the ability to drive 10 LSTTL loads. The device is characterized for operation from -55°C to 125°C, ensuring reliable performance across a wide range of environmental conditions.

The device comes in a space-saving SOIC-16 package, making it suitable for compact PCB layouts. Its pin configuration is industry-standard, which allows for easy integration into existing designs without the need for significant layout changes.

Key features of the MC74ACT138DR2G include:

• Operating Voltage Range: 4.5V to 5.5V
• High-Speed Operation: tPD = 4.6ns (Typ) at VCC = 5V
• Low Power Consumption: ICC = 4µA (Max) at TA = 25°C
• Multiple Input Enable for Easy Expansion
• Ideal for Memory Chip Select Decoding
• High Noise Immunity Characteristic of CMOS Devices
• Inherent Latch-Up Performance Exceeds 100mA
• ESD Performance: HBM > 2000V; Machine Model > 200V

Whether it's for a complex microprocessor system or a simple data routing application, the MC74ACT138DR2G from ON Semiconductor provides a reliable and efficient solution that designers can count on.