74ACT534PC Equivalent & Substitute Parts

Part Overview

The 74ACT534PC is a D-Type flip-flop logic integrated circuit featuring 1 element with 8-bit capacity and tri-state inverted output configuration. Designed for positive edge triggering applications, this component operates at 100 MHz clock frequency with 11.5ns maximum propagation delay. The part is classified as obsolete, making identification of compatible substitute components essential for ongoing system maintenance and new design implementations requiring equivalent functionality.

Substiute Parts

74ACT534PC

onsemiIn Stock: 121274ACT534PC Datasheet

Current PartRFQ

SN74ACT534N

Texas InstrumentsIn Stock: 1355SN74ACT534N Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ACT534PC is determined by strict equivalence across the following critical parameters:

Functional Parameters: Type (D-Type flip-flop), number of elements (1), bits per element (8), output configuration (tri-state inverted), and trigger mechanism (positive edge).

Electrical Parameters: Clock frequency (100 MHz), maximum propagation delay (11.5ns @ 5V, 50pF), supply voltage range (4.5V ~ 5.5V), output current capability (24mA high/low), and input capacitance (4.5 pF).

Physical Parameters: Package type (20-DIP with 0.300" / 7.62mm pitch) and through-hole mounting configuration.

Series Compatibility: All substitutes must belong to the 74ACT logic series to ensure pin compatibility and electrical characteristics alignment.

Parts meeting all these criteria are classified as parametric equivalents and may be used interchangeably in applications designed for the 74ACT534PC.

Parameter Comparison

Engineering Selection Recommendations

The SN74ACT534N manufactured by Texas Instruments is a parametric equivalent to the 74ACT534PC. Both components share identical functional specifications, electrical characteristics, and physical packaging. The primary distinction is product status: the 74ACT534PC is obsolete while the SN74ACT534N maintains active production status.

For new designs and system replacements, the SN74ACT534N is the appropriate selection due to its active availability and ROHS3 compliance certification. The Texas Instruments variant demonstrates superior quiescent current performance (4 µA versus 40 µA), resulting in reduced power consumption during standby operation while maintaining all other electrical parameters.

Both components satisfy REACH regulatory requirements and carry identical ECCN and HTSUS classifications, confirming regulatory equivalence for international applications.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT534N directly replace the 74ACT534PC in existing circuits?

A: Yes. Both components are pin-compatible 20-DIP packages with identical electrical specifications, supply voltage ranges, output current ratings, and propagation delay characteristics. Direct substitution is supported without circuit modification.

Q: What is the significance of the quiescent current difference between these parts?

A: The SN74ACT534N operates at 4 µA quiescent current compared to 40 µA for the 74ACT534PC. This represents improved power efficiency during idle states. For applications with continuous operation or high-frequency switching, this difference has minimal impact on total power consumption.

Q: Are there packaging alternatives to the 20-DIP configuration?

A: The specifications provided identify only the 20-DIP (0.300", 7.62mm) through-hole package for both the main part and substitute. Alternative package types are not included in this equivalency analysis.

Q: What compliance certifications apply to both components?

A: Both the 74ACT534PC and SN74ACT534N are REACH Unaffected and carry EAR99 ECCN classification. The SN74ACT534N additionally holds ROHS3 compliance certification, making it suitable for applications with RoHS requirements.

Q: Why is the 74ACT534PC classified as obsolete?

A: Obsolete status indicates the component is no longer in active production. The SN74ACT534N from Texas Instruments provides continued availability of equivalent functionality with active manufacturing support.