74F374SJ Equivalent & Substitute Parts

Part Overview

The 74F374SJ is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit positive edge triggering and tri-state non-inverted output. This component operates at a clock frequency of 140 MHz with a maximum propagation delay of 8.5ns at 5V with 50pF load. The part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74F374SJ

onsemiIn Stock: 195574F374SJ Datasheet

Current PartRFQ

SN74F374NSR

Texas InstrumentsIn Stock: 5299SN74F374NSR Datasheet

DirectRFQ

SN74F374DW

Texas InstrumentsIn Stock: 2659SN74F374DW Datasheet

SimilarRFQ

SN74F374DWR

Texas InstrumentsIn Stock: 5319SN74F374DWR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74F374SJ is determined by the following critical parameters that must remain consistent across equivalent parts:

• Functional equivalence: D-Type flip-flop, 1 element, 8-bit configuration
• Output characteristics: Tri-state, non-inverted output
• Trigger mechanism: Positive edge triggering
• Electrical specifications: 4.5V ~ 5.5V supply voltage, 8.5ns maximum propagation delay at 5V with 50pF load
• Current ratings: 3mA output high, 24mA output low
• Package compatibility: 20-SOIC surface mount package
• Operating temperature range: 0°C ~ 70°C

The substitute parts identified maintain these core parameters while differing in manufacturer, product status, packaging format, and clock frequency specifications. All substitutes are from Texas Instruments and share the 74F base product number designation.

Parameter Comparison

Engineering Selection Recommendations

SN74F374NSR (Texas Instruments) is the primary substitute for the 74F374SJ. This part maintains identical electrical specifications and package dimensions (20-SOIC 0.209" width), with active product status ensuring long-term availability. ROHS3 compliance and tape & reel packaging support modern manufacturing processes.

SN74F374DWR (Texas Instruments) is an alternative substitute with active product status and ROHS3 compliance. This part operates at 100 MHz clock frequency and features a wider 20-SOIC package (0.295" width). Tape & reel packaging is suitable for automated assembly.

SN74F374DW (Texas Instruments) is available as a last-time-buy option with tube packaging. This part shares the same 100 MHz clock frequency and wider package dimensions as the SN74F374DWR but is not recommended for new designs due to its end-of-life status.

All three Texas Instruments substitutes maintain the critical electrical parameters of the 74F374SJ: 8.5ns maximum propagation delay, tri-state non-inverted output, positive edge triggering, and 4.5V ~ 5.5V supply voltage operation.

Frequently Asked Questions (FAQ)

Q: Can the SN74F374NSR directly replace the 74F374SJ in existing designs?

A: Yes. The SN74F374NSR maintains identical electrical specifications and package dimensions (20-SOIC 0.209" width), making it a direct functional replacement. Both parts share the same 8.5ns propagation delay, tri-state output configuration, and 4.5V ~ 5.5V supply voltage requirements.

Q: What is the difference between SN74F374DWR and SN74F374NSR?

A: Both parts are functionally equivalent D-Type flip-flops with identical electrical specifications. The primary differences are package width (SN74F374DWR uses 0.295" width versus SN74F374NSR at 0.209" width) and clock frequency rating (100 MHz versus 70 MHz). Both are active products with ROHS3 compliance.

Q: Why does the 74F374SJ have a higher clock frequency (140 MHz) than the Texas Instruments substitutes?

A: Clock frequency specifications reflect manufacturer testing and rating practices. The critical parameter for substitution is the maximum propagation delay (8.5ns at 5V, 50pF), which is identical across all parts. This propagation delay determines actual switching performance in circuit applications.

Q: Are there package compatibility concerns when substituting the 74F374SJ?

A: The SN74F374NSR uses the same package dimensions as the 74F374SJ (20-SOIC 0.209" width) and is fully compatible. The SN74F374DW and SN74F374DWR use a wider 20-SOIC package (0.295" width) and require PCB layout verification for pin-to-pin compatibility, though the 20-pin SOIC footprint remains standard.

Q: What is the significance of the product status differences?

A: The 74F374SJ is obsolete, making substitution necessary. SN74F374NSR and SN74F374DWR are active products with guaranteed long-term availability. SN74F374DW is last-time-buy status, indicating limited future availability and unsuitability for new designs.

Q: Do all substitute parts meet ROHS3 compliance?

A: Yes. All three Texas Instruments substitutes (SN74F374NSR, SN74F374DW, SN74F374DWR) are ROHS3 compliant. The original 74F374SJ does not specify RoHS status.