74LVC139D,118 Equivalent & Substitute Parts

Part Overview

The 74LVC139D,118 is a decoder/demultiplexer logic integrated circuit manufactured by Nexperia USA Inc. in a 16-SOIC surface mount package. This device functions as a 1 x 2:4 decoder with dual independent circuits, designed for signal routing and selection applications in digital systems. The part is currently in active production status with 1542 units in stock. Substitute parts are necessary when the primary part becomes unavailable, when alternative packaging formats are required for assembly processes, or when sourcing from multiple manufacturers is needed for supply chain resilience.

Substiute Parts

74LVC139D,118

Nexperia USA Inc.In Stock: 156974LVC139D,118 Datasheet

Current PartRFQ

MC74LCX139DR2G

onsemiIn Stock: 3451MC74LCX139DR2G Datasheet

SimilarRFQ

SN74LVC139AD

Texas InstrumentsIn Stock: 1976SN74LVC139AD Datasheet

SimilarRFQ

SN74LVC139ADR

Texas InstrumentsIn Stock: 3325SN74LVC139ADR Datasheet

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SN74LVC139ADT

Texas InstrumentsIn Stock: 1913SN74LVC139ADT Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74LVC139D,118 is determined by the following critical parameters that must remain consistent across equivalent parts:

Functional Parameters:

• Decoder/Demultiplexer type with 1 x 2:4 circuit configuration
• Dual independent circuits (2 circuits)
• Output current capability: 24mA high, 24mA low

Electrical Parameters:

• Package compatibility: 16-SOIC form factor (0.154", 3.90mm width)
• Surface mount mounting type
• Voltage supply range compatibility
• Operating temperature range

Compliance Parameters:

• RoHS3 compliance
• Moisture sensitivity level 1 (unlimited)
• REACH unaffected status

Substitute parts must maintain the same functional decoder/demultiplexer architecture, identical output current specifications, and compatible 16-SOIC packaging. Voltage supply ranges and operating temperature ranges may vary within acceptable limits for the application. All substitute parts listed are from the 74LVC or 74LCX logic families, which share the same functional behavior and pin configuration.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Active Status):

SN74LVC139AD, SN74LVC139ADR, and SN74LVC139ADT from Texas Instruments are functionally equivalent to the 74LVC139D,118. All three maintain identical decoder/demultiplexer architecture, output current specifications, and 16-SOIC packaging. These parts are in active production status. The primary difference is packaging format: SN74LVC139AD is supplied in Tube packaging, SN74LVC139ADR in Cut Tape & Digi-Reel format, and SN74LVC139ADT in Tape & Reel format. Selection between these three should be based on assembly process requirements and packaging compatibility with your production line.

Texas Instruments parts offer a lower minimum voltage supply specification (1.65V vs. 2.7V) and reduced maximum operating temperature (85°C vs. 125°C) compared to the Nexperia part. These differences are acceptable for most applications operating within standard industrial temperature ranges and supply voltages above 2.7V.

Secondary Substitute (Obsolete Status):

MC74LCX139DR2G from onsemi is functionally equivalent but carries obsolete product status. This part should be selected only when existing inventory is available and long-term supply is not a concern. The 74LCX series operates within a 2V to 3.6V supply range, which is compatible with the primary part's 2.7V to 3.6V specification. Maximum operating temperature is 85°C.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity level, and REACH unaffected status, ensuring regulatory compliance across all options.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 74LVC139D,118 with any of the listed parts without circuit modification?

A: Yes. All listed substitute parts maintain identical functional behavior as 1 x 2:4 decoder/demultiplexers with dual independent circuits and 24mA output current capability. Pin configuration and electrical characteristics are compatible. No circuit modifications are required.

Q: What is the difference between SN74LVC139AD, SN74LVC139ADR, and SN74LVC139ADT?

A: These three parts are electrically identical but differ in packaging format. SN74LVC139AD is supplied in Tube packaging for manual handling or small-volume assembly. SN74LVC139ADR is supplied in Cut Tape & Digi-Reel format for semi-automated pick-and-place equipment. SN74LVC139ADT is supplied in Tape & Reel format for fully automated assembly lines. Select based on your production equipment and assembly process requirements.

Q: Why does the MC74LCX139DR2G show obsolete status?

A: The MC74LCX139DR2G is no longer in active production by onsemi. While functionally equivalent, this part should only be used if existing inventory is available. For new designs or long-term production, select from the active status Texas Instruments parts (SN74LVC139AD, SN74LVC139ADR, or SN74LVC139ADT).

Q: Are there voltage supply differences I should consider?

A: The Nexperia 74LVC139D,118 operates from 2.7V to 3.6V. Texas Instruments parts operate from 1.65V to 3.6V, offering lower minimum voltage capability. The onsemi part operates from 2V to 3.6V. If your application uses supply voltages below 2.7V, select a Texas Instruments part. For applications using 2.7V or higher, all parts are compatible.

Q: What is the operating temperature difference between the main part and substitutes?

A: The Nexperia 74LVC139D,118 operates from -40°C to 125°C. All substitute parts operate from -40°C to 85°C. If your application requires operation above 85°C, the Nexperia part is the only option. For standard industrial temperature ranges (-40°C to 85°C), all substitute parts are suitable.

Q: Are all parts RoHS3 compliant?

A: Yes. The 74LVC139D,118 and all listed substitute parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1). All parts are REACH unaffected. Regulatory compliance is maintained across all options.