74HC237DB,112 Equivalent & Substitute Parts

Part Overview

The 74HC237DB,112 is a decoder/demultiplexer integrated circuit manufactured by Nexperia USA Inc., featuring a 1 x 3:8 circuit configuration in a 16-SSOP surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement planning. The part operates across a 2V to 6V supply range with symmetric output current characteristics, suitable for logic-level signal routing and selection applications.

Substiute Parts

74HC237DB,112

Nexperia USA Inc.In Stock: 98774HC237DB,112 Datasheet

Current PartRFQ

74HC237PWJ

Nexperia USA Inc.In Stock: 97574HC237PWJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC237DB,112 is determined by the following critical parameters:

• Functional Circuit: 1 x 3:8 decoder/demultiplexer configuration
• Output Current Characteristics: 5.2mA high and low output current
• Supply Voltage Range: 2V ~ 6V single supply operation
• Operating Temperature Range: -40°C ~ 125°C
• Mounting Type: Surface mount technology
• Compliance Standards: ROHS3 compliance and MSL Level 1

The primary substitute identified is the 74HC237PWJ, which maintains identical electrical specifications and functional performance while differing only in package form factor and product status classification.

Parameter Comparison

Engineering Selection Recommendations

The 74HC237PWJ serves as the direct functional equivalent to the obsolete 74HC237DB,112. Both parts maintain identical electrical performance specifications, including output current, supply voltage range, and operating temperature characteristics. The transition from the 74HC237DB,112 to the 74HC237PWJ is supported by:

• Identical base product number (74HC237) and circuit functionality
• Matching electrical parameters across all critical specifications
• Equivalent compliance certifications (ROHS3, MSL Level 1)
• Active product status of the substitute, ensuring continued availability

The primary design consideration involves package geometry: the 74HC237PWJ uses a 16-TSSOP package (0.173" width) compared to the 16-SSOP package (0.209" width) of the original part. This represents a narrower package footprint, requiring PCB layout verification to confirm compatibility with existing board designs. Both packages maintain identical pin counts and electrical connectivity.

Frequently Asked Questions (FAQ)

Q: Can the 74HC237PWJ directly replace the 74HC237DB,112 in existing designs?

A: Electrical substitution is complete. The 74HC237PWJ maintains all functional and electrical specifications of the 74HC237DB,112. Physical substitution requires verification that the narrower 16-TSSOP package (4.40mm width) accommodates the existing PCB footprint designed for the 16-SSOP package (5.30mm width).

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

A: The parts are electrically identical. The differences are package form factor (SSOP versus TSSOP) and product status (obsolete versus active). The TSSOP variant is narrower, reducing board space requirements.

Q: Are both parts ROHS3 compliant?

A: Yes, both the 74HC237DB,112 and 74HC237PWJ are ROHS3 compliant with MSL Level 1 moisture sensitivity rating.

Q: What does the obsolete status of the 74HC237DB,112 mean for procurement?

A: The obsolete classification indicates the part is no longer in active production. The 74HC237PWJ, with active product status, represents the current production equivalent and is the recommended selection for new designs and ongoing procurement.

Q: Are there packaging considerations for automated assembly?

A: The 74HC237PWJ is supplied in Tape & Reel (TR) format, standard for automated pick-and-place assembly. The 74HC237DB,112 was supplied in tube packaging. Verify that assembly equipment is configured for the appropriate packaging format.