74HC174D,652 Equivalent & Substitute Parts

Part Overview

The 74HC174D,652 is a D-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., featuring 1 element with 6 bits per element in a 16-SOIC package. This component functions as a master reset flip-flop with positive edge triggering and non-inverted outputs. The part is currently listed as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. Substitute parts maintain functional compatibility while offering improved availability or enhanced specifications.

Substiute Parts

74HC174D,652

Nexperia USA Inc.In Stock: 106674HC174D,652 Datasheet

Current PartRFQ

MC74HC174ADR2G

onsemiIn Stock: 10317MC74HC174ADR2G Datasheet

DirectRFQ

CD74HC174M

Harris CorporationIn Stock: 9119CD74HC174M Datasheet

UpgradeRFQ

CD74HC174M96

Harris CorporationIn Stock: 5135CD74HC174M96 Datasheet

UpgradeRFQ

MC74HC174ADG

onsemiIn Stock: 1164MC74HC174ADG Datasheet

SimilarRFQ

SN74HC174D

Texas InstrumentsIn Stock: 1082SN74HC174D Datasheet

SimilarRFQ

SN74HC174DR

Texas InstrumentsIn Stock: 3512SN74HC174DR Datasheet

SimilarRFQ

SN74HC174DRG4

Texas InstrumentsIn Stock: 18366SN74HC174DRG4 Datasheet

SimilarRFQ

SN74HC174NSR

Texas InstrumentsIn Stock: 3150SN74HC174NSR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74HC174D,652 is determined by the following critical parameters:

• Base Product Number: All substitutes must share the 74HC174 base designation
• Package Type: 16-SOIC form factor with compatible pin configuration
• Functional Characteristics: D-type flip-flop with 6-bit configuration, positive edge trigger, non-inverted output
• Electrical Specifications: Supply voltage range 2V ~ 6V, output current capability 5.2mA high/low
• Mounting Technology: Surface mount compatibility

Substitute parts are categorized as direct replacements (MC74HC174ADR2G), upgrades (CD74HC174M, CD74HC174M96), or similar alternatives (MC74HC174ADG, SN74HC174D, SN74HC174DR, SN74HC174DRG4, SN74HC174NSR) based on product status, availability, and specification alignment.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: MC74HC174ADR2G (onsemi)

MC74HC174ADR2G is the preferred direct substitute for 74HC174D,652. This part maintains full functional compatibility with identical package geometry (16-SOIC 0.154" width), electrical specifications, and pin configuration. The part is currently in active production status with robust inventory availability (10,300 units). It carries ROHS3 compliance certification and meets all supply voltage and output current requirements. The lower quiescent current (4 µA vs. 8 µA) and improved propagation delay (19ns vs. 28ns) provide performance benefits for power-sensitive applications.

Secondary Recommendation: SN74HC174DR (Texas Instruments)

SN74HC174DR serves as an alternative substitute with active product status and strong inventory position (3,407 units). This part maintains identical package dimensions and functional characteristics. Texas Instruments certification and ROHS3 compliance ensure regulatory alignment. The superior propagation delay specification (14ns) and lower input capacitance (3 pF) offer performance advantages in timing-critical applications. Operating temperature range is limited to -40°C ~ 85°C, which may restrict use in extended temperature environments.

Tertiary Recommendation: SN74HC174DRG4 (Texas Instruments)

SN74HC174DRG4 provides high inventory availability (18,329 units) in tape and reel packaging. This part maintains full functional compatibility and ROHS3 compliance. The propagation delay specification (27ns) closely matches the original part. Discontinued status at DiGi Electronics may affect long-term procurement reliability.

Package Consideration: SN74HC174NSR (Texas Instruments)

SN74HC174NSR is functionally equivalent but features a wider 16-SOIC package (0.209" vs. 0.154" width). This part is suitable only for designs with PCB layout accommodating the larger package footprint. Active product status and ROHS3 compliance support long-term availability.

Not Recommended: CD74HC174M and CD74HC174M96 (Harris Corporation)

Both Harris Corporation parts carry RoHS non-compliance status, making them unsuitable for applications requiring regulatory compliance. Obsolete product status further limits procurement viability.

Frequently Asked Questions (FAQ)

Q: Can MC74HC174ADR2G directly replace 74HC174D,652 without PCB modifications?

A: Yes. MC74HC174ADR2G maintains identical 16-SOIC (0.154", 3.90mm width) package geometry, pin configuration, and functional characteristics. No PCB layout changes are required for direct substitution.

Q: What is the difference between the propagation delay specifications across substitute parts?

A: Propagation delay varies from 14ns (SN74HC174D, SN74HC174DR) to 28ns (74HC174D,652, CD74HC174M, CD74HC174M96). Lower propagation delay indicates faster signal transition through the flip-flop. Applications with strict timing requirements should select parts with propagation delay specifications meeting or exceeding design margins.

Q: Are all substitute parts RoHS compliant?

A: No. MC74HC174ADR2G, MC74HC174ADG, SN74HC174D, SN74HC174DR, SN74HC174DRG4, and SN74HC174NSR carry ROHS3 compliance. CD74HC174M and CD74HC174M96 are RoHS non-compliant and unsuitable for regulated applications.

Q: Which substitute part offers the best long-term availability?

A: SN74HC174DR (Texas Instruments) and SN74HC174NSR (Texas Instruments) maintain active product status, ensuring continued manufacturing and supply chain support. MC74HC174ADR2G (onsemi) also carries active status with substantial inventory reserves.

Q: Does operating temperature range affect substitution eligibility?

A: Operating temperature range varies across substitutes. The original 74HC174D,652 operates -40°C ~ 125°C. SN74HC174D, SN74HC174DR, SN74HC174DRG4, and SN74HC174NSR are limited to -40°C ~ 85°C. MC74HC174ADR2G, CD74HC174M, CD74HC174M96, and MC74HC174ADG extend to -55°C ~ 125°C. Select substitutes based on application temperature requirements.

Q: What packaging options are available for substitute parts?

A: MC74HC174ADR2G is supplied in tape and reel format. SN74HC174DR is available in cut tape and Digi-Reel packaging. SN74HC174DRG4 is supplied in tape and reel. SN74HC174NSR is supplied in tape and reel. CD74HC174M is supplied in tube. CD74HC174M96 is supplied in bulk. Packaging selection depends on production volume and assembly process requirements.

Q: Can SN74HC174NSR be used as a substitute despite the wider package?

A: SN74HC174NSR is functionally equivalent but features a 16-SOIC (0.209", 5.30mm width) package versus the original 0.154" width. Substitution is possible only if PCB layout accommodates the larger package footprint. Pin configuration and electrical specifications remain compatible.