SN74LVC139APWRE4 Equivalent & Substitute Parts

Part Overview

The SN74LVC139APWRE4 is a Decoder/Demultiplexer logic IC manufactured by Texas Instruments, featuring a 1 x 2:4 circuit configuration in a 16-TSSOP surface mount package. This part is classified as Obsolete, making identification of equivalent and substitute components essential for design continuity and procurement planning. Equivalent parts maintain identical electrical and mechanical specifications, while substitute parts offer functional compatibility within defined parameter ranges.

Substiute Parts

SN74LVC139APWRE4

Texas InstrumentsIn Stock: 876SN74LVC139APWRE4 Datasheet

Current PartRFQ

SN74LVC139APWR

Texas InstrumentsIn Stock: 6204SN74LVC139APWR Datasheet

Parametric EquivalentRFQ

SN74LVC139APWT

Texas InstrumentsIn Stock: 1896SN74LVC139APWT Datasheet

Parametric EquivalentRFQ

MC74LCX139DTR2G

onsemiIn Stock: 3659MC74LCX139DTR2G Datasheet

DirectRFQ

74LVC139PW,118

Nexperia USA Inc.In Stock: 1302274LVC139PW,118 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LVC139APWRE4 is determined by the following critical parameters:

• Circuit Configuration: 1 x 2:4 Decoder/Demultiplexer topology
• Independent Circuits: 2 circuits per package
• Output Current Capability: 24mA high and low output current
• Package Type: 16-TSSOP surface mount form factor
• Voltage Supply Range: Minimum 1.65V operation required
• Operating Temperature Range: Minimum -40°C to 85°C coverage required
• Compliance: ROHS3 compliance and MSL Level 1 rating

Substitute parts are grouped into three categories based on their relationship to the main part: Parametric Equivalents (identical specifications, different packaging), Direct Manufacturers (functionally equivalent from alternative suppliers), and Manufacturer-Recommended alternatives (enhanced specifications or extended availability).

Parameter Comparison

Engineering Selection Recommendations

SN74LVC139APWR and SN74LVC139APWT are parametric equivalents from Texas Instruments with Active product status. Both maintain identical electrical specifications and 16-TSSOP packaging. The primary distinction is packaging format: SN74LVC139APWR and SN74LVC139APWT are supplied in Tape & Reel format, offering superior availability (6100 and 1798 units respectively) compared to the Obsolete SN74LVC139APWRE4. These are direct replacements for new designs and production continuity.

74LVC139PW,118 from Nexperia USA Inc. is the manufacturer-recommended alternative, offering extended operating temperature range (-40°C to 125°C) and the highest inventory availability (12951 units). This part maintains all critical electrical parameters and ROHS3 compliance. The expanded temperature specification provides additional design margin for applications requiring higher thermal performance.

MC74LCX139DTR2G from onsemi is a direct functional equivalent with identical circuit configuration and output current ratings. However, this part has a minimum voltage supply of 2V (versus 1.65V for the 74LVC series) and carries Obsolete status. Selection of this part should be limited to applications where 2V minimum supply voltage is acceptable and where existing inventory justifies continued use.

Frequently Asked Questions (FAQ)

Q: Can SN74LVC139APWR directly replace SN74LVC139APWRE4 in production?

A: Yes. SN74LVC139APWR is a parametric equivalent with identical electrical specifications, circuit configuration, and 16-TSSOP package. The only difference is packaging format (Tape & Reel versus Tube). Pin-to-pin compatibility is guaranteed.

Q: What is the difference between SN74LVC139APWR and SN74LVC139APWT?

A: Both are parametric equivalents from Texas Instruments with identical electrical and mechanical specifications. The difference is supply format and inventory availability. SN74LVC139APWR has 6100 units in stock, while SN74LVC139APWT has 1798 units. Selection depends on procurement volume requirements.

Q: Why does 74LVC139PW,118 have a higher operating temperature range?

A: 74LVC139PW,118 from Nexperia is specified for -40°C to 125°C operation, compared to -40°C to 85°C for the Texas Instruments 74LVC series. This extended range reflects Nexperia's design and qualification specifications. All other electrical parameters remain equivalent.

Q: Is MC74LCX139DTR2G compatible with designs requiring 1.65V minimum supply voltage?

A: No. MC74LCX139DTR2G has a minimum supply voltage of 2V, making it unsuitable for applications requiring 1.65V operation. Use SN74LVC139APWR, SN74LVC139APWT, or 74LVC139PW,118 for 1.65V minimum voltage designs.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original SN74LVC139APWRE4 specifications.

Q: What packaging formats are available for these decoder/demultiplexer parts?

A: SN74LVC139APWRE4 is supplied in Tube format. SN74LVC139APWR and SN74LVC139APWT are supplied in Tape & Reel (TR) format. MC74LCX139DTR2G is supplied in Cut Tape (CT) format. 74LVC139PW,118 is supplied in Tape & Reel (TR) format. Selection depends on assembly equipment compatibility and procurement volume.