SN74LS153DG4 Equivalent & Substitute Parts

Part Overview

The SN74LS153DG4 is a 2 x 4:1 multiplexer logic integrated circuit manufactured by Texas Instruments in 16-SOIC surface mount packaging. This component functions as a dual 4-to-1 data selector, routing one of four input signals to a single output based on binary select lines. The device operates on single supply voltage and is designed for standard TTL logic applications.

The SN74LS153DG4 carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. This status necessitates identification of equivalent substitute parts to maintain design continuity and ensure component availability for ongoing production, repair, and new builds.

Substiute Parts

SN74LS153DG4

Texas InstrumentsIn Stock: 1150SN74LS153DG4 Datasheet

Current PartRFQ

SN74LS153D

onsemiIn Stock: 11344SN74LS153D Datasheet

MFR RecommendedRFQ

SN74LS153DR

Texas InstrumentsIn Stock: 3101SN74LS153DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74LS153DG4 is determined by strict equivalence across the following parameters:

• Circuit configuration: 2 x 4:1 multiplexer topology
• Package type: 16-SOIC form factor with identical pin pitch and dimensions
• Electrical specifications: Supply voltage range 4.75V ~ 5.25V, output current ratings 400µA (high) and 8mA (low)
• Operating temperature range: 0°C ~ 70°C
• Mounting technology: Surface mount compatibility

Parts meeting these criteria are functionally interchangeable at the circuit level. Packaging format (Tube versus Tape & Reel) does not affect electrical substitution but may impact procurement and assembly workflows.

Parameter Comparison

Engineering Selection Recommendations

SN74LS153DR is the primary substitute for the SN74LS153DG4. Both parts are manufactured by Texas Instruments, carry Active product status, and maintain ROHS3 compliance. The SN74LS153DR is supplied in Tape & Reel format, which is standard for high-volume production environments. All electrical and mechanical parameters are identical, ensuring direct functional substitution without circuit redesign.

SN74LS153D (onsemi manufacture) is a secondary substitute option. While electrically equivalent, this part carries Obsolete product status and does not meet ROHS3 compliance requirements. Selection of this part should be limited to applications where RoHS compliance is not mandated and long-term availability cannot be guaranteed.

For new designs and applications requiring regulatory compliance, SN74LS153DR is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Can SN74LS153DR be used as a direct replacement for SN74LS153DG4?

A: Yes. Both parts share identical electrical specifications, circuit configuration, and 16-SOIC package dimensions. The difference in packaging format (Tube versus Tape & Reel) does not affect electrical performance or PCB assembly compatibility.

Q: What is the significance of the packaging format difference between Tube and Tape & Reel?

A: Tube packaging is used for manual handling and small-quantity orders. Tape & Reel format is designed for automated pick-and-place assembly equipment. The choice between formats depends on production volume and assembly methodology, not electrical function.

Q: Why is SN74LS153D marked as Obsolete?

A: Obsolete status indicates that onsemi has ceased production and support for this part number. While existing inventory may be available, long-term supply cannot be assured. This status, combined with non-compliance to ROHS3, makes this part unsuitable for new production designs.

Q: Are there any differences in pin configuration between the substitute parts?

A: No. All three parts use the 16-SOIC package with identical pin assignments and electrical characteristics. PCB layouts and schematics require no modification when substituting between these parts.

Q: What compliance certifications apply to each part?

A: SN74LS153DG4 and SN74LS153DR both carry ROHS3 compliance certification. SN74LS153D does not meet ROHS3 requirements. All three parts are classified under ECCN EAR99 and HTSUS 8542.39.0001.