74F374SCX Equivalent & Substitute Parts

Part Overview

The 74F374SCX is a D-type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit parallel data storage capability. This component operates as a positive edge-triggered device in a 20-SOIC surface mount package. The part is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. Substitute components must maintain identical electrical performance characteristics and package compatibility to ensure direct replacement capability.

Substiute Parts

74F374SCX

onsemiIn Stock: 957174F374SCX Datasheet

Current PartRFQ

SN74F374DW

Texas InstrumentsIn Stock: 2659SN74F374DW Datasheet

DirectRFQ

SN74F374DWR

Texas InstrumentsIn Stock: 5319SN74F374DWR Datasheet

DirectRFQ

SN74F574DWR

Texas InstrumentsIn Stock: 4204SN74F574DWR Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74F374SCX are qualified based on the following critical parameters that determine functional equivalence:

• Logic Function: D-Type flip-flop with 1 element and 8-bit configuration
• Package Type: 20-SOIC (0.295", 7.50mm Width) surface mount
• Output Configuration: Tri-State, Non-Inverted
• Trigger Mechanism: Positive Edge
• Electrical Ratings: Supply voltage 4.5V ~ 5.5V, propagation delay 8.5ns @ 5V, 50pF
• Output Drive Capability: 3mA (High), 24mA (Low)
• Operating Temperature Range: 0°C ~ 70°C

The substitute parts SN74F374DW, SN74F374DWR, and SN74F574DWR meet these core substitution criteria. All three components are manufactured by Texas Instruments and maintain identical package geometry, electrical performance, and functional characteristics. The SN74F574DWR operates under an active product status with RoHS3 compliance, while SN74F374DWR and SN74F374DW provide additional availability options with varying packaging formats.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the 74F374SCX, the following selection criteria apply based on product status and compliance requirements:

SN74F374DWR (Texas Instruments) is the primary substitute recommendation. This part maintains active product status, ensuring long-term availability and supply chain stability. It carries ROHS3 compliance certification and is supplied in Tape & Reel packaging, suitable for automated assembly processes. Current inventory of 5,306 units supports production requirements.

SN74F574DWR (Texas Instruments) serves as an alternative substitute with identical electrical and mechanical specifications. This component also maintains active product status with ROHS3 compliance and Tape & Reel packaging. Inventory of 4,140 units is available. The base product number differs (74F574 versus 74F374), but functional equivalence is maintained across all critical parameters.

SN74F374DW (Texas Instruments) provides a secondary option with Last Time Buy status. This variant is supplied in Tube packaging rather than Tape & Reel format. While functionally equivalent, the Last Time Buy designation indicates limited future availability. This option is suitable for applications with lower volume requirements or where Tube packaging is acceptable.

All three substitute parts satisfy the electrical and mechanical requirements for direct replacement of the obsolete 74F374SCX. Selection should prioritize SN74F374DWR or SN74F574DWR for new designs and ongoing production to ensure sustained component availability.

Frequently Asked Questions (FAQ)

Q: Can SN74F374DWR directly replace 74F374SCX in existing designs?

A: Yes. Both components share identical package geometry (20-SOIC), electrical specifications (supply voltage, propagation delay, output current), and functional characteristics (D-Type flip-flop, 8-bit, positive edge trigger, tri-state output). Direct pin-for-pin substitution is supported.

Q: What is the difference between SN74F374DWR and SN74F574DWR?

A: The base product numbers differ (74F374 versus 74F574), but both components provide equivalent D-Type flip-flop functionality with 1 element and 8-bit configuration. All critical electrical parameters, package specifications, and output characteristics are identical. Selection between these parts depends on component availability and supply chain preferences.

Q: Why does the 74F374SCX show 140 MHz clock frequency while substitutes show 100 MHz?

A: The clock frequency specification represents the maximum rated operating frequency. The 100 MHz rating for Texas Instruments substitutes remains within acceptable performance margins for applications designed around the 74F374SCX. The propagation delay specification (8.5ns @ 5V, 50pF) is identical across all parts, confirming timing compatibility.

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

A: Tube packaging supplies components in plastic tubes suitable for manual handling and lower-volume applications. Tape & Reel packaging provides components on continuous tape wound on reels, optimized for automated pick-and-place assembly equipment. Both formats contain identical components; packaging selection depends on assembly process requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. SN74F374DWR and SN74F574DWR both carry ROHS3 compliance certification. SN74F374DW also maintains ROHS3 compliance. The original 74F374SCX does not specify RoHS status in the provided data.

Q: Which substitute should be selected for new production designs?

A: SN74F374DWR is recommended for new designs. This component maintains active product status, ensuring sustained availability, and is supplied in Tape & Reel format compatible with modern automated assembly processes. ROHS3 compliance supports environmental and regulatory requirements.