SN74ACT574NG4 Equivalent & Substitute Parts

Part Overview

The SN74ACT574NG4 is a D-Type flip-flop logic integrated circuit manufactured by Texas Instruments, featuring 1 element with 8-bit capacity and tri-state, non-inverted output configuration. This component is classified as a standard logic device within the 74ACT series and operates at a maximum clock frequency of 110 MHz with positive edge triggering. The SN74ACT574NG4 is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing design support and component procurement.

Substiute Parts

SN74ACT574NG4

Texas InstrumentsIn Stock: 1100SN74ACT574NG4 Datasheet

Current PartRFQ

SN74ACT574N

Texas InstrumentsIn Stock: 1629SN74ACT574N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SN74ACT574NG4 is determined by strict equivalence across the following critical parameters:

Functional Parameters: Type (D-Type flip-flop), number of elements (1), number of bits per element (8), output type (tri-state, non-inverted), trigger type (positive edge), and clock frequency (110 MHz maximum).

Electrical Parameters: Supply voltage range (4.5V ~ 5.5V), output current capability (24 mA high and low), quiescent current (4 µA), input capacitance (4.5 pF), and maximum propagation delay (11 ns @ 5V, 50pF).

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

Compliance Parameters: RoHS3 compliance, REACH unaffected status, and moisture sensitivity level (MSL 1).

Substitute parts must match all specified parameters without deviation. Series designation (74ACT) and manufacturer (Texas Instruments) remain constant across all qualified substitutes.

Parameter Comparison

Engineering Selection Recommendations

The SN74ACT574N is the qualified substitute for the discontinued SN74ACT574NG4. Both components are manufactured by Texas Instruments and maintain identical electrical, functional, and physical specifications across all critical parameters. The primary distinction is product status: the SN74ACT574NG4 is discontinued at DiGi Electronics, while the SN74ACT574N maintains active status with current inventory availability (1618 pcs new original in stock).

Both parts satisfy ROHS3 compliance and REACH unaffected requirements. The SN74ACT574N is suitable for direct replacement in applications currently specified for the SN74ACT574NG4, with no circuit redesign or board layout modification required. Pin configuration, electrical performance, and thermal operating range remain identical between the two part numbers.

Frequently Asked Questions (FAQ)

Q: Can the SN74ACT574N directly replace the SN74ACT574NG4 in existing designs?

A: Yes. The SN74ACT574N is a direct functional and electrical equivalent. Both components share identical pin configuration, electrical specifications, and operating characteristics. No circuit modifications are required for substitution.

Q: Are there differences in package specifications between these parts?

A: No. Both the SN74ACT574NG4 and SN74ACT574N use the 20-DIP (0.300", 7.62mm) through-hole package with identical pin pitch and mechanical dimensions. PCB layouts designed for one part accommodate the other without modification.

Q: What is the significance of the product status difference?

A: The SN74ACT574NG4 is discontinued at DiGi Electronics, indicating limited or no future availability through standard distribution channels. The SN74ACT574N maintains active status with current inventory, ensuring reliable procurement for new designs and ongoing production support.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SN74ACT574NG4 and SN74ACT574N are ROHS3 compliant and REACH unaffected. Compliance certifications are identical, supporting use in regulated applications and markets with environmental requirements.

Q: Are the electrical performance characteristics identical?

A: Yes. Clock frequency (110 MHz), propagation delay (11 ns @ 5V, 50pF), output current (24 mA), supply voltage range (4.5V ~ 5.5V), and all other electrical parameters are identical between both parts. Operating temperature range (-40°C ~ 85°C) is also equivalent.