74HC139N,652 Equivalent & Substitute Parts

Part Overview

The 74HC139N,652 is a decoder/demultiplexer logic integrated circuit manufactured by NXP USA Inc. in a 16-DIP through-hole package. This component functions as a 1 x 2:4 decoder with dual independent circuits, commonly used in digital logic applications for address decoding and signal routing. The part is classified as obsolete, making equivalent substitutes necessary for ongoing design support and procurement.

Substiute Parts

74HC139N,652

NXP USA Inc.In Stock: 79874HC139N,652 Datasheet

Current PartRFQ

CD74HC139E

Harris CorporationIn Stock: 2321CD74HC139E Datasheet

DirectRFQ

74HC139D,653

Nexperia USA Inc.In Stock: 3890174HC139D,653 Datasheet

MFR RecommendedRFQ

SN74HC139N

Texas InstrumentsIn Stock: 9861SN74HC139N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74HC139N,652 is determined by the following critical parameters:

• Base Product Number: All substitutes share the 74HC139 base designation, ensuring identical logic function and pin configuration
• Circuit Configuration: 1 x 2:4 decoder with 2 independent circuits must be maintained
• Voltage Supply Range: 2V ~ 6V compatibility is required
• Output Current Specifications: 5.2mA high and low output current ratings must be met
• Pin Count and Functionality: 16-pin package with identical pinout

Substitutes are grouped into two categories based on mounting type: through-hole packages (16-DIP/16-PDIP) and surface-mount packages (16-SO). Within each category, substitutes maintain electrical equivalence while differing in manufacturer, product status, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

For Through-Hole Applications (Direct Pin-Compatible Replacement):

The SN74HC139N from Texas Instruments is the preferred active substitute for through-hole mounting. It maintains identical 16-DIP package dimensions, meets ROHS3 compliance, and carries active product status. Operating temperature range is -40°C to 85°C, which covers the original specification minimum but with a reduced upper limit of 85°C versus the original 125°C. This substitution is suitable for applications not requiring the extended upper temperature range.

The CD74HC139E from Harris Corporation is electrically equivalent with extended operating temperature range (-55°C to 125°C) but is classified as obsolete and does not meet RoHS compliance. This option is suitable only when legacy inventory must be maintained or when extended low-temperature operation is critical.

For Surface-Mount Applications (Package Change):

The 74HC139D,653 from Nexperia USA Inc. provides an active, ROHS3-compliant alternative in 16-SOIC surface-mount packaging. This substitution requires PCB redesign to accommodate the different package footprint but offers the advantage of active product status and full compliance certifications. Electrical parameters remain equivalent to the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74HC139N,652 be directly replaced with the SN74HC139N?

A: Yes, for through-hole applications. Both parts use 16-DIP packaging with identical pinouts and electrical specifications. The SN74HC139N is an active product from Texas Instruments with ROHS3 compliance. Note that the upper operating temperature limit is 85°C versus 125°C on the original part.

Q: What is the difference between the CD74HC139E and other substitutes?

A: The CD74HC139E is an obsolete part from Harris Corporation that does not meet RoHS compliance. It offers an extended operating temperature range (-55°C to 125°C) compared to other substitutes. Selection of this part should be limited to applications requiring legacy inventory or extended low-temperature specifications.

Q: Can I use the 74HC139D,653 as a direct replacement?

A: The 74HC139D,653 is electrically equivalent but uses 16-SOIC surface-mount packaging instead of 16-DIP through-hole. Direct PCB substitution is not possible without redesign. This part is recommended for new designs requiring surface-mount technology and is an active product with full compliance certifications.

Q: Are all substitutes electrically interchangeable?

A: All listed substitutes maintain the same logic function (1 x 2:4 decoder), voltage supply range (2V ~ 6V), and output current specifications (5.2mA). Differences exist in operating temperature ranges, product status, and compliance certifications. Package type (through-hole versus surface-mount) determines physical interchangeability.

Q: Which substitute should I select for new designs?

A: For through-hole designs, the SN74HC139N from Texas Instruments is recommended due to active product status and ROHS3 compliance. For surface-mount designs, the 74HC139D,653 from Nexperia is the preferred choice. Both parts are actively manufactured and meet current compliance requirements.