74VHC374M Equivalent & Substitute Parts

Part Overview

The 74VHC374M is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit positive edge triggering in a 20-SOIC package. This component functions as a standard octal latch with tri-state, non-inverted outputs, operating across a 2V to 5.5V supply range with a maximum propagation delay of 10.1ns at 5V with 50pF load.

The 74VHC374M is classified as obsolete. Equivalent and substitute parts are available from active product lines that maintain identical or superior electrical and mechanical specifications, ensuring design continuity and supply chain reliability.

Substiute Parts

74VHC374M

onsemiIn Stock: 99174VHC374M Datasheet

Current PartRFQ

MC74VHC374DWR2G

onsemiIn Stock: 1838MC74VHC374DWR2G Datasheet

DirectRFQ

SN74AHC374DWR

Texas InstrumentsIn Stock: 1946SN74AHC374DWR Datasheet

DirectRFQ

74AHC374D,118

Nexperia USA Inc.In Stock: 117174AHC374D,118 Datasheet

UpgradeRFQ

74AHCT374D,118

Nexperia USA Inc.In Stock: 301074AHCT374D,118 Datasheet

SimilarRFQ

SN74AHC374NSR

Texas InstrumentsIn Stock: 6450SN74AHC374NSR Datasheet

SimilarRFQ

SN74AHC374DW

Texas InstrumentsIn Stock: 2206SN74AHC374DW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74VHC374M are classified based on the following substitution criteria:

Direct Electrical Equivalents: Parts maintaining identical electrical specifications including clock frequency (120 MHz), propagation delay (10.1ns @ 5V, 50pF), output current (8mA), supply voltage range (2V ~ 5.5V), quiescent current (4 µA), and input capacitance (4 pF).

Package Compatibility: All substitute parts utilize the 20-SOIC package form factor, ensuring mechanical and thermal compatibility with existing PCB layouts and sockets.

Functional Equivalence: All parts are D-Type flip-flops with 1 element, 8-bit configuration, positive edge triggering, and tri-state non-inverted outputs.

Series Variations: Substitutes span the 74VHC, 74AHC, and 74AHCT logic families, which share compatible pinouts and functional behavior while offering different supply voltage ranges and temperature ratings.

Product Status Priority: Active product status substitutes are preferred over obsolete or last-time-buy designations for long-term design sustainability.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74VHC374DWR2G (onsemi) is the direct equivalent substitute, maintaining identical electrical specifications and operating parameters as the 74VHC374M while offering active product status and improved supply chain availability.

Alternative Recommendation: SN74AHC374DWR (Texas Instruments) provides equivalent electrical performance with active product status. The 74AHC series maintains full compatibility with 74VHC logic families in standard applications.

Extended Temperature Range Option: 74AHC374D,118 (Nexperia USA Inc.) extends the operating temperature range to -40°C ~ 125°C while maintaining electrical equivalence, suitable for applications requiring enhanced thermal performance.

Restricted Supply Voltage Option: 74AHCT374D,118 (Nexperia USA Inc.) operates within a narrower supply voltage range (4.5V ~ 5.5V) and is suitable only for applications with fixed 5V supply rails. This part offers marginally higher clock frequency (130 MHz) and propagation delay (10.4ns).

Package Variant: SN74AHC374NSR (Texas Instruments) provides electrical equivalence with a narrower 20-SOIC package (0.209" width) for space-constrained applications, though PCB layout modifications may be required.

End-of-Life Consideration: SN74AHC374DW (Texas Instruments) maintains full electrical equivalence but carries last-time-buy status, limiting its suitability for new designs requiring long-term component availability.

Frequently Asked Questions (FAQ)

Q: Can MC74VHC374DWR2G directly replace 74VHC374M without circuit modifications?

A: Yes. MC74VHC374DWR2G maintains identical electrical specifications, pinout, and package dimensions. No circuit modifications are required for direct substitution.

Q: What is the difference between 74VHC, 74AHC, and 74AHCT logic families?

A: 74VHC operates across 2V ~ 5.5V supply range. 74AHC also operates across 2V ~ 5.5V with improved performance characteristics. 74AHCT operates only within 4.5V ~ 5.5V and includes TTL-compatible input thresholds. All three families share compatible pinouts and functional behavior.

Q: Is SN74AHC374NSR compatible with existing PCB layouts designed for 74VHC374M?

A: SN74AHC374NSR maintains identical pinout and electrical specifications but features a narrower package width (0.209" versus 0.295"). Physical PCB footprint modifications are required for this variant.

Q: Why is 74AHCT374D,118 listed as a similar rather than direct substitute?

A: 74AHCT374D,118 operates within a restricted supply voltage range (4.5V ~ 5.5V) compared to the 74VHC374M (2V ~ 5.5V). It is suitable only for applications with fixed 5V supply rails. Additionally, propagation delay is marginally higher at 10.4ns versus 10.1ns.

Q: What is the significance of product status (Active, Obsolete, Last Time Buy)?

A: Product status indicates component lifecycle stage. Active status ensures long-term availability and supply chain reliability. Obsolete status indicates discontinued production with no future availability. Last Time Buy status indicates final production run with limited remaining inventory.

Q: Are all substitute parts RoHS3 compliant?

A: MC74VHC374DWR2G, SN74AHC374DWR, 74AHC374D,118, 74AHCT374D,118, SN74AHC374NSR, and SN74AHC374DW are all RoHS3 compliant. The original 74VHC374M does not specify RoHS compliance status.

Q: Can these parts be used interchangeably in high-speed applications?

A: Yes, within specified operating parameters. All substitute parts maintain the 120 MHz clock frequency and 10.1ns propagation delay of the original 74VHC374M, with the exception of 74AHCT374D,118 (130 MHz, 10.4ns) and SN74AHC374DW (last-time-buy status).