74HC154DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC154DB,112 is a decoder/demultiplexer integrated circuit manufactured by Nexperia USA Inc., designed for 1 x 4:16 logic decoding applications. This component features a 24-SSOP surface mount package and operates across a 2V to 6V supply voltage range with an operating temperature range of -40°C to 125°C.

The 74HC154DB,112 carries an Obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications currently utilizing this component.

Substiute Parts

74HC154DB,112

Nexperia USA Inc.In Stock: 109774HC154DB,112 Datasheet

Current PartRFQ

74HC154PW,118

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

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC154DB,112 is determined by the following critical parameters:

• Functional Equivalence: Identical decoder/demultiplexer circuit configuration (1 x 4:16)
• Electrical Compatibility: Matching output current specifications (5.2mA high and low), single supply voltage operation, and identical supply voltage range (2V ~ 6V)
• Thermal Compatibility: Identical operating temperature range (-40°C ~ 125°C)
• Regulatory Compliance: ROHS3 compliance, REACH unaffected status, and MSL rating of 1
• Manufacturer Consistency: Same manufacturer (Nexperia USA Inc.) and base product series (74HC154)

The 74HC154PW,118 qualifies as a direct substitute based on these parameters. The primary distinction between the main part and substitute is the package type: the main part uses 24-SSOP packaging while the substitute uses 24-TSSOP packaging. Both packages are surface mount configurations with compatible pinouts and electrical performance.

Parameter Comparison

Engineering Selection Recommendations

The 74HC154PW,118 is the qualified substitute for the obsolete 74HC154DB,112. Both components maintain identical electrical specifications, functional performance, and regulatory compliance status. The substitute part carries Active product status, ensuring ongoing availability and supply chain support.

The primary consideration for component selection is package compatibility. The 74HC154PW,118 uses a 24-TSSOP package with a narrower body width (4.40mm) compared to the 24-SSOP package of the main part (5.30mm). PCB layout and footprint design must accommodate this dimensional difference. Both packages maintain identical pin counts and electrical connectivity.

The 74HC154PW,118 is available in higher inventory quantities (28,654 pieces) compared to the main part (1,073 pieces), providing superior supply chain reliability for new designs and production requirements.

Frequently Asked Questions (FAQ)

Q: Can the 74HC154PW,118 directly replace the 74HC154DB,112 in existing designs?

A: Electrical and functional replacement is direct. PCB footprint modification is required due to package type differences (24-SSOP to 24-TSSOP). Pin configuration and electrical performance remain identical.

Q: What is the primary difference between these two parts?

A: The main difference is the surface mount package type. The 74HC154DB,112 uses 24-SSOP packaging while the 74HC154PW,118 uses 24-TSSOP packaging. The TSSOP variant has a narrower body width (4.40mm versus 5.30mm).

Q: Are both parts compliant with current regulatory standards?

A: Both parts are ROHS3 compliant and REACH unaffected. Both maintain MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Why is the main part listed as Obsolete?

A: The 74HC154DB,112 carries Obsolete status. The 74HC154PW,118 substitute maintains Active status, ensuring continued manufacturer support and availability.

Q: Do the electrical specifications differ between these parts?

A: No. Both parts share identical output current ratings (5.2mA high and low), supply voltage range (2V ~ 6V), operating temperature range (-40°C ~ 125°C), and circuit configuration (1 x 4:16 decoder/demultiplexer).