74VHC374N Equivalent & Substitute Parts

Part Overview

The 74VHC374N is a D-Type flip-flop logic integrated circuit featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. Designed for positive edge triggering applications, this component operates across a 2V to 5.5V supply range with a maximum propagation delay of 10.1ns at 5V with 50pF load. The 74VHC374N is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where inventory constraints exist.

Substiute Parts

74VHC374N

onsemiIn Stock: 107974VHC374N Datasheet

Current PartRFQ

SN74AHC374N

Texas InstrumentsIn Stock: 1915SN74AHC374N Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74VHC374N is determined by strict equivalence across the following critical parameters:

Functional Parameters:

• Type: D-Type flip-flop with 1 element, 8-bit configuration
• Output Configuration: Tri-state, non-inverted output
• Trigger Mechanism: Positive edge triggering
• Clock Frequency: 120 MHz minimum capability

Electrical Parameters:

• Voltage Supply Range: 2V ~ 5.5V
• Propagation Delay: 10.1ns maximum @ 5V, 50pF load
• Output Current: 8mA high and low
• Quiescent Current: 4 µA
• Input Capacitance: 4 pF

Physical Parameters:

• Package: 20-DIP (0.300", 7.62mm)
• Mounting: Through Hole

The SN74AHC374N from Texas Instruments meets all specified electrical, functional, and physical parameters, establishing it as a direct substitute. Both components operate identically within the defined parameter envelope and are pin-compatible in 20-DIP through-hole applications.

Parameter Comparison

Engineering Selection Recommendations

The SN74AHC374N is a direct functional and electrical equivalent to the 74VHC374N. Selection between these components should be based on the following criteria:

For Obsolete Component Replacement: The SN74AHC374N carries Active product status from Texas Instruments, ensuring continued availability and long-term supply chain reliability. The 74VHC374N, classified as Obsolete, presents inventory depletion risk and potential future unavailability.

For Compliance Requirements: Both components maintain REACH Unaffected status and EAR99 export classification. The SN74AHC374N additionally carries RoHS3 Compliance certification, meeting modern regulatory requirements for new designs and manufacturing environments.

For New Designs: The SN74AHC374N is the preferred selection due to active manufacturer support, documented compliance certifications, and guaranteed long-term availability.

For Legacy System Maintenance: Either component is electrically and functionally interchangeable. Selection depends on inventory availability and cost considerations, as both operate identically within specified parameters.

Frequently Asked Questions (FAQ)

Q: Can the SN74AHC374N directly replace the 74VHC374N in existing circuits?

A: Yes. Both components are pin-compatible in 20-DIP through-hole applications and operate identically across all specified electrical parameters including supply voltage (2V ~ 5.5V), propagation delay (10.1ns @ 5V, 50pF), output current (8mA), and operating temperature range (-40°C ~ 85°C).

Q: What is the primary reason to substitute the 74VHC374N?

A: The 74VHC374N is classified as Obsolete. The SN74AHC374N maintains Active product status, ensuring reliable long-term availability and manufacturer support for both current inventory needs and future procurement.

Q: Are there any package or mounting differences between these components?

A: No. Both components use identical 20-DIP (0.300", 7.62mm) through-hole packaging. No PCB layout modifications or mechanical changes are required for substitution.

Q: Do these components have different compliance certifications?

A: Both maintain REACH Unaffected and EAR99 export classification status. The SN74AHC374N additionally carries RoHS3 Compliance certification, making it suitable for applications requiring modern regulatory compliance.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is determined by equivalence in D-Type flip-flop configuration (1 element, 8-bit), tri-state non-inverted output, positive edge triggering, 120 MHz clock frequency, 10.1ns propagation delay @ 5V/50pF, 2V ~ 5.5V supply range, 8mA output current, 4 µA quiescent current, and 20-DIP through-hole package.