CD74HC154M

Overview

The CD74HC154M is a high-speed CMOS logic device functioning as a 4-to-16-line decoder or demultiplexer. It accepts four binary address inputs to select one of sixteen active-low outputs. The component operates within a supply voltage range of 2 V to 6 V and features two enable inputs that force all outputs high when asserted. It provides balanced propagation delays and significant power reduction compared to LSTTL equivalents, with an operating temperature range from -55°C to +125°C.

Feature Summary

• Features two enable inputs facilitating demultiplexing and cascading functions
• Offers standard output fan-out for ten LSTTL loads and bus driver output fan-out for fifteen LSTTL loads
• Provides wide operating temperature coverage from -55°C to +125°C
• Delivers balanced propagation delay and transition times

Applications

• Signal processing systems
• Automation and process control
• Memory address decoding
• Data routing applications

Procurement Notes

Verify the specific suffix against manufacturer documentation to confirm package type and environmental compliance. Confirm current production status as previous variants may be obsolete. Ensure the selected part matches the required voltage and temperature specifications for the target application environment before procurement.

Selection Notes

Select this component for designs requiring low power consumption relative to LSTTL logic while maintaining compatible input/output levels. The wide voltage range supports flexible power supply architectures. Verify that the SOIC-24 package fits the board layout constraints and that the thermal requirements align with the industrial temperature rating.

Part Context

This device belongs to the Texas Instruments HC series of high-speed CMOS logic integrated circuits. It serves as a digital decoder/demultiplexer solution designed to replace older transistor-transistor logic families. The component is engineered for robust performance in industrial environments, offering enhanced noise immunity and reduced static power dissipation compared to legacy technologies.

Replacement Considerations

CD74HC154ME4 is listed as an obsolete variant with CD74HC154M96 identified as a manufacturer-recommended replacement.