74HC154D,653 Equivalent & Substitute Parts

Part Overview

The 74HC154D,653 is a decoder/demultiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 24-SOIC package. This component functions as a 1 x 4:16 decoder, converting 4-bit binary input to 16 individual output lines. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

74HC154D,653

Nexperia USA Inc.In Stock: 104774HC154D,653 Datasheet

Current PartRFQ

74HC154PW,118

Nexperia USA Inc.In Stock: 2870874HC154PW,118 Datasheet

MFR RecommendedRFQ

CD74HC154M

Texas InstrumentsIn Stock: 1485CD74HC154M Datasheet

SimilarRFQ

CD74HC154M96

Texas InstrumentsIn Stock: 26048CD74HC154M96 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC154D,653 is determined by the following critical parameters:

Functional Equivalence: All substitute parts must maintain the 1 x 4:16 decoder/demultiplexer circuit configuration with identical output current specifications (5.2mA high and low).

Electrical Compatibility: Voltage supply range (2V ~ 6V) and output current ratings must be met or exceeded by substitute parts.

Package Compatibility: The original 24-SOIC package can be directly replaced by equivalent 24-SOIC or 24-TSSOP packages, both maintaining the same 0.295" width and surface mount characteristics.

Compliance Requirements: All substitutes must maintain ROHS3 compliance and identical REACH/ECCN classifications.

Substitute parts are grouped into two categories: MFR Recommended (active status, preferred for new designs) and Similar (alternative options with varying product status).

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: 74HC154PW,118 (Nexperia USA Inc.)

This part is the MFR recommended substitute with active product status. It maintains identical electrical specifications and operating temperature range as the original 74HC154D,653. The package change from 24-SOIC to 24-TSSOP represents a footprint reduction while preserving all functional and electrical characteristics. This part is suitable for new designs and ongoing production.

Secondary Recommendation: CD74HC154M96 (Texas Instruments)

This part maintains active product status with identical functional and electrical specifications. The 24-SOIC package matches the original form factor. The extended lower operating temperature limit (-55°C vs. -40°C) provides additional thermal margin for demanding applications. This option is appropriate when package consistency with the original design is required.

Alternative Option: CD74HC154M (Texas Instruments)

This part carries Last Time Buy status, indicating limited availability. While electrically and functionally equivalent with extended temperature range, it should be selected only when supply chain constraints or specific design requirements necessitate this option.

Frequently Asked Questions (FAQ)

Q: Can 74HC154PW,118 directly replace 74HC154D,653 in existing designs?

A: Electrical and functional compatibility is complete. The package change from 24-SOIC to 24-TSSOP requires PCB footprint modification. Both packages maintain identical pin pitch and surface mount characteristics, with 24-TSSOP offering reduced board space.

Q: What is the difference between 24-SOIC and 24-TSSOP packages?

A: Both are 24-pin surface mount packages with identical pin pitch. The 24-TSSOP package has a narrower body width (0.173" vs. 0.295"), reducing PCB footprint. Electrical performance and pin functionality remain identical.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and identical REACH/ECCN classifications as the original 74HC154D,653.

Q: What is the significance of product status (Active, Last Time Buy, Obsolete)?

A: Active status indicates ongoing production and long-term availability. Last Time Buy indicates limited remaining inventory with no future production. Obsolete status indicates production has ended. For new designs, select parts with Active status.

Q: Do all substitutes operate within the same voltage and temperature ranges?

A: All substitutes operate within the 2V ~ 6V supply range. CD74HC154M and CD74HC154M96 extend the lower operating temperature to -55°C compared to -40°C for the original and 74HC154PW,118. All support the upper limit of 125°C.

Q: Can I use CD74HC154M or CD74HC154M96 interchangeably?

A: Yes, from an electrical and functional standpoint. Both are Texas Instruments parts with identical specifications. CD74HC154M96 has active status, while CD74HC154M is Last Time Buy. For new designs, CD74HC154M96 is preferred.