SN74LS153D Equivalent & Substitute Parts

Part Overview

The SN74LS153D is a 2 x 4:1 multiplexer logic integrated circuit manufactured by Texas Instruments in 16-SOIC surface mount packaging. This component is classified as Last Time Buy, indicating discontinued production with limited availability. The identification of equivalent and substitute parts is necessary to ensure design continuity and procurement flexibility for applications requiring 2 x 4:1 multiplexer functionality within the specified electrical and mechanical parameters.

Substiute Parts

SN74LS153D

Texas InstrumentsIn Stock: 1868SN74LS153D Datasheet

Current PartRFQ

SN74LS153DR

Texas InstrumentsIn Stock: 3101SN74LS153DR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SN74LS153D is determined by strict equivalence across the following critical parameters:

• Circuit configuration: 2 x 4:1 multiplexer topology
• Package type: 16-SOIC surface mount form factor
• Electrical specifications: Voltage supply range 4.75V ~ 5.25V, output current ratings 400µA (high) and 8mA (low)
• Operating temperature range: 0°C ~ 70°C
• Compliance certifications: ROHS3 compliance, REACH unaffected status

The SN74LS153DR qualifies as a direct substitute based on identical electrical characteristics, package specifications, and compliance requirements. The primary distinction is packaging format: the substitute is supplied in Tape & Reel (TR) configuration versus Tube packaging for the main part.

Parameter Comparison

Engineering Selection Recommendations

The SN74LS153DR is a direct functional and electrical equivalent to the SN74LS153D. Selection between these parts should be based on procurement and supply chain requirements:

The SN74LS153D is designated Last Time Buy status, indicating limited remaining inventory and no future production. The SN74LS153DR maintains Active product status with higher current inventory levels (3079 Pcs versus 1761 Pcs), providing superior long-term availability and supply chain stability.

Both parts maintain identical ROHS3 compliance and REACH unaffected certifications, ensuring regulatory equivalence for applications subject to environmental and hazardous substance restrictions.

The packaging format difference (Tube versus Tape & Reel) affects only procurement and assembly logistics, not electrical or mechanical compatibility. Component selection should prioritize the Active status part (SN74LS153DR) for new designs and ongoing production to ensure sustained supply availability.

Frequently Asked Questions (FAQ)

Q: Can SN74LS153DR be used as a direct replacement for SN74LS153D in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The 16-SOIC package dimensions, pin configuration, voltage supply requirements, and output current ratings are equivalent. Substitution requires no circuit modifications or design changes.

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

A: Tube and Tape & Reel are packaging and delivery formats that do not affect component functionality or electrical performance. Tube packaging is used for lower-volume orders and manual assembly processes. Tape & Reel packaging is standard for automated pick-and-place assembly. The physical component remains identical.

Q: Why is SN74LS153D marked as Last Time Buy?

A: Last Time Buy designation indicates that Texas Instruments has discontinued production of this part number. Existing inventory will be depleted without replenishment. The SN74LS153DR, with Active status, represents the current production equivalent and should be specified for new designs.

Q: Are there compliance differences between these parts?

A: No. Both SN74LS153D and SN74LS153DR maintain identical ROHS3 compliance and REACH unaffected status. They are equivalent for applications subject to environmental and hazardous substance regulations.

Q: What are the critical parameters for multiplexer substitution?

A: Circuit configuration (2 x 4:1), package type (16-SOIC), voltage supply range (4.75V ~ 5.25V), output current specifications (400µA high, 8mA low), and operating temperature range (0°C ~ 70°C) are the parameters that determine substitution eligibility. All must match exactly for functional equivalence.