74F374SC Equivalent & Substitute Parts

Part Overview

The 74F374SC is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component operates at positive edge trigger with a clock frequency of 140 MHz and is housed in a 20-SOIC surface mount package. The part is currently classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement.

Substiute Parts

74F374SC

onsemiIn Stock: 222374F374SC Datasheet

Current PartRFQ

SN74F374DW

Texas InstrumentsIn Stock: 2659SN74F374DW Datasheet

DirectRFQ

SN74F374DWR

Texas InstrumentsIn Stock: 5319SN74F374DWR Datasheet

DirectRFQ

SN74F574DW

Texas InstrumentsIn Stock: 1301SN74F574DW Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74F374SC is determined by strict equivalence across the following critical parameters:

Electrical Compatibility:

• D-Type flip-flop function with 1 element, 8-bit configuration
• Tri-state, non-inverted output type
• Positive edge trigger mechanism
• Voltage supply range: 4.5V ~ 5.5V
• Max propagation delay: 8.5 ns @ 5V, 50pF
• Output current specifications: 3 mA (high), 24 mA (low)
• Operating temperature range: 0°C ~ 70°C

Mechanical Compatibility:

• 20-SOIC surface mount package (0.295", 7.50mm Width)
• MSL rating: 1 (Unlimited)

Regulatory Compliance:

• REACH Unaffected status
• ECCN: EAR99

The substitute parts SN74F374DW, SN74F374DWR, and SN74F574DW meet all electrical and mechanical requirements for direct substitution. Differences in clock frequency (100 MHz vs. 140 MHz) and product status do not affect functional compatibility within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

SN74F374DWR (Texas Instruments) - Primary Recommendation

The SN74F374DWR is the preferred substitute for the obsolete 74F374SC. This part carries Active product status, ensuring long-term availability and supply chain stability. It is ROHS3 compliant and maintains identical electrical and mechanical specifications to the original component. The Tape & Reel packaging format supports automated assembly processes. Current inventory of 5,306 units provides immediate procurement availability.

SN74F374DW (Texas Instruments) - Secondary Option

The SN74F374DW provides functional equivalence with Last Time Buy status. This part is ROHS3 compliant and meets all electrical and mechanical requirements. Tube packaging is suitable for manual assembly or lower-volume applications. Inventory of 2,600 units is available.

SN74F574DW (Texas Instruments) - Alternative Configuration

The SN74F574DW is functionally equivalent with a different base product number (74F574 vs. 74F374). This part carries Last Time Buy status and ROHS3 compliance. It is suitable for applications where the 74F574 variant is acceptable. Inventory of 1,252 units is available.

Frequently Asked Questions (FAQ)

Q: Can the SN74F374DWR directly replace the 74F374SC without circuit modifications?

A: Yes. The SN74F374DWR maintains identical electrical specifications, output characteristics, and 20-SOIC package dimensions. No circuit modifications are required for direct substitution.

Q: What is the significance of the different clock frequency ratings (140 MHz vs. 100 MHz)?

A: The 74F374SC is rated for 140 MHz operation, while the Texas Instruments substitutes are rated for 100 MHz. Both specifications exceed typical application requirements for D-Type flip-flop logic circuits. The lower rating does not affect compatibility within standard operating conditions.

Q: Are there differences between SN74F374DW and SN74F374DWR?

A: Both parts are electrically identical. The primary difference is packaging format: SN74F374DW is supplied in Tube format, while SN74F374DWR is supplied in Tape & Reel format. Tape & Reel is optimized for automated assembly; Tube format is suitable for manual assembly or lower-volume applications.

Q: What does "Last Time Buy" product status mean?

A: Last Time Buy indicates that the manufacturer will no longer produce the part after a specified date. Existing inventory remains available for purchase, but long-term supply cannot be guaranteed. For new designs, the Active status SN74F374DWR is recommended.

Q: Is the SN74F574DW a suitable substitute for the 74F374SC?

A: The SN74F574DW is functionally equivalent and meets all electrical and mechanical requirements. The base product number differs (74F574 vs. 74F374), but this does not affect circuit compatibility. Selection depends on design documentation and component qualification requirements.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All Texas Instruments substitute parts (SN74F374DW, SN74F374DWR, SN74F574DW) are ROHS3 compliant. The original 74F374SC does not specify RoHS status.

Q: What is the MSL rating, and why is it relevant?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited moisture sensitivity tolerance. All parts in this comparison carry MSL 1 rating, meaning standard storage and handling procedures are sufficient without special moisture control measures.