CD74HC238E

Overview

The CD74HC238E is a high-speed CMOS logic decoder manufactured by Texas Instruments. It features a 16-pin PDIP package and operates within a supply voltage range of 2V to 6V. The device functions as a 3-to-8 line decoder/demultiplexer with four inputs, including three binary selection lines and enable controls. It supports an operating temperature range from -55°C to 125°C.

Feature Summary

• Provides decoding and demultiplexing capabilities for digital signal routing
• Features three binary address inputs for selecting one of eight outputs
• Includes multiple enable inputs to facilitate cascading configurations

Applications

• Memory address decoding in computing systems
• Data routing applications requiring signal distribution
• Industrial control systems utilizing CMOS logic interfaces

Procurement Notes

Verify the specific package type and pin configuration against the datasheet before procurement. Confirm that the operating voltage requirements align with the system design. Ensure environmental specifications meet the intended application conditions. Cross-reference the manufacturer part number to avoid counterfeit components.

Selection Notes

Select this component when high-speed CMOS performance is required alongside low power consumption. It serves as a suitable alternative to TTL logic families while maintaining compatibility. Consider the PDIP package for through-hole mounting requirements. Evaluate the enable input structure for complex decoding needs.

Part Context

This component belongs to the Texas Instruments CD74HC series of high-speed CMOS logic devices. It shares functional similarities with other decoders in the family but offers specific packaging and electrical characteristics. The series is designed for general-purpose digital applications requiring reliable switching and decoding functions.

Replacement Considerations

Compatible substitutes include the CD74HC238M96 and CD74HC238NSRG4. Verify pinout compatibility and electrical parameters before substitution.