74F253SC Equivalent & Substitute Parts

Part Overview

The 74F253SC is a 2 x 4:1 multiplexer logic integrated circuit manufactured by onsemi in a 16-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 74F253 series provides dual 4-to-1 multiplexing functionality with single supply voltage operation, suitable for digital signal routing and data selection applications in logic circuits.

Substiute Parts

74F253SC

onsemiIn Stock: 81174F253SC Datasheet

Current PartRFQ

SN74F253DR

Texas InstrumentsIn Stock: 1890SN74F253DR Datasheet

DirectRFQ

SN74F253DRG4

Texas InstrumentsIn Stock: 931SN74F253DRG4 Datasheet

DirectRFQ

SN74F253D

Texas InstrumentsIn Stock: 1452SN74F253D Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74F253SC is determined by strict equivalence across the following critical parameters: circuit configuration (2 x 4:1 multiplexer), package type (16-SOIC), voltage supply range (4.5V ~ 5.5V), output current specifications (3mA high, 24mA low), operating temperature range (0°C ~ 70°C), and mounting method (surface mount). All identified substitutes maintain identical electrical and mechanical specifications, ensuring direct functional replacement without circuit redesign.

The substitute parts are classified into two categories:

Direct Manufacturer Equivalents: SN74F253DR and SN74F253DRG4 (Texas Instruments) - identical specifications with different packaging formats (Tape & Reel).

Parametric Equivalent: SN74F253D (Texas Instruments) - identical electrical and mechanical specifications with alternative packaging (Tube).

Parameter Comparison

Engineering Selection Recommendations

For new designs and ongoing procurement, SN74F253DR (Texas Instruments) is the primary recommended substitute. This part maintains active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The Tape & Reel packaging format supports automated assembly processes.

SN74F253D (Texas Instruments) serves as a secondary option for applications where Tube packaging is acceptable. This part carries Last Time Buy status, indicating limited future availability.

SN74F253DRG4 (Texas Instruments) is not recommended for new procurement due to discontinued status at major distributors, despite current inventory availability.

All three substitutes are electrically and mechanically identical to the 74F253SC, requiring no circuit modifications or PCB redesign for implementation.

Frequently Asked Questions (FAQ)

Q: Can SN74F253DR directly replace 74F253SC without circuit modification? A: Yes. Both parts share identical electrical specifications (voltage supply, output current, operating temperature) and mechanical specifications (16-SOIC package, surface mount). Direct substitution is possible without circuit redesign.

Q: What is the difference between SN74F253DR and SN74F253DRG4? A: Both parts are electrically identical. The primary difference is packaging format: SN74F253DR uses standard Tape & Reel packaging, while SN74F253DRG4 is also Tape & Reel but carries a different HTSUS code. SN74F253DRG4 is discontinued at major distributors.

Q: Why is SN74F253D classified as a parametric equivalent rather than a direct equivalent? A: SN74F253D differs only in packaging format (Tube instead of Tape & Reel). All electrical and mechanical parameters are identical. The Tube packaging may affect assembly process compatibility.

Q: Are all substitutes ROHS3 compliant? A: Yes. SN74F253DR, SN74F253DRG4, and SN74F253D are all ROHS3 compliant. The original 74F253SC does not specify RoHS status.

Q: What is the inventory status of substitute parts? A: SN74F253DR has 1837 units in stock. SN74F253DRG4 has 841 units in stock. SN74F253D has 1384 units in stock. All are available as new original components.

Q: Can I use these substitutes in existing PCBs designed for 74F253SC? A: Yes. All substitutes use the identical 16-SOIC package footprint and pin configuration, allowing direct PCB compatibility without layout modifications.