74ABT374AD,112 Equivalent & Substitute Parts

Part Overview

The 74ABT374AD,112 is a D-type flip-flop logic integrated circuit manufactured by NXP USA Inc., configured as a single 8-bit element with tri-state, non-inverted output. This component operates at positive edge trigger with a maximum propagation delay of 4.9ns at 5V with 50pF load capacitance. The part is classified as obsolete, which necessitates identification of active equivalent and substitute components that maintain functional and electrical compatibility for ongoing system support and new designs.

Substiute Parts

74ABT374AD,112

NXP USA Inc.In Stock: 100574ABT374AD,112 Datasheet

Current PartRFQ

74FCT374CTSOG

IDT, Integrated Device Technology IncIn Stock: 189774FCT374CTSOG Datasheet

MFR RecommendedRFQ

CD74FCT374M

Texas InstrumentsIn Stock: 1439CD74FCT374M Datasheet

MFR RecommendedRFQ

CY74FCT374ATSOC

Texas InstrumentsIn Stock: 1638CY74FCT374ATSOC Datasheet

MFR RecommendedRFQ

CY74FCT374ATSOCT

Texas InstrumentsIn Stock: 2968CY74FCT374ATSOCT Datasheet

MFR RecommendedRFQ

SN74ABT374ADW

Texas InstrumentsIn Stock: 1053SN74ABT374ADW Datasheet

MFR RecommendedRFQ

SN74ABT374ADWR

Texas InstrumentsIn Stock: 4917SN74ABT374ADWR Datasheet

MFR RecommendedRFQ

SN74LS374DWR

Texas InstrumentsIn Stock: 2071SN74LS374DWR Datasheet

MFR RecommendedRFQ

SN74LS374NSR

Texas InstrumentsIn Stock: 3781SN74LS374NSR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 74ABT374AD,112 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Function: D-Type flip-flop, single element, 8-bit configuration
• Output Type: Tri-state, non-inverted
• Trigger Type: Positive edge
• Package: 20-SOIC form factor
• Voltage Supply Range: 4.5V to 5.5V compatibility
• Operating Temperature Range: -40°C to 85°C
• Mounting Type: Surface mount

Acceptable Variation Parameters:

• Propagation delay (within functional timing requirements)
• Output current ratings (high/low)
• Quiescent current consumption
• Input capacitance
• Clock frequency specifications

Substitute parts are grouped into two categories: Series 74ABT (direct technology family match) and Series 74FCT (alternative technology family with compatible electrical characteristics). Series 74LS parts are included as legacy alternatives with reduced performance specifications.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Series 74ABT - Direct Technology Family):

SN74ABT374ADW and SN74ABT374ADWR are the preferred substitutes. Both are manufactured by Texas Instruments within the same 74ABT technology family as the original NXP part. These components maintain identical electrical specifications including voltage supply range (4.5V to 5.5V), operating temperature range (-40°C to 85°C), output current ratings (32mA high, 64mA low), and quiescent current (250 µA). Propagation delay is marginally higher at 5.1ns versus 4.9ns. Both parts carry ROHS3 compliance and unlimited moisture sensitivity rating. The ADWR variant is supplied in Tape & Reel packaging with higher inventory availability (4,839 pcs), while ADW is supplied in Tube packaging (993 pcs).

Secondary Substitutes (Series 74FCT - Alternative Technology Family):

CY74FCT374ATSOC and CY74FCT374ATSOCT provide functional equivalence with acceptable electrical performance variation. Both maintain the -40°C to 85°C operating temperature range and 20-SOIC package form factor. The ATSOCT variant (Tape & Reel, 2,873 pcs inventory) offers superior clock frequency specification (250 MHz) and is ROHS3 compliant. Propagation delay increases to 6.5ns. The voltage supply range narrows to 4.75V to 5.25V, which remains compatible with standard 5V systems. 74FCT374CTSOG (IDT manufacturer, Bulk packaging, 1,860 pcs) provides similar performance with 5.2ns propagation delay but lacks specified RoHS status.

Legacy Alternative (Series 74LS):

SN74LS374DWR is suitable only for applications where reduced performance specifications are acceptable. This part operates at 50 MHz clock frequency with 28ns propagation delay, significantly slower than the original part. Operating temperature range is restricted to 0°C to 70°C, and quiescent current consumption is elevated at 40 mA. Output current ratings are substantially reduced (2.6mA high, 24mA low). This part is ROHS3 compliant and available in Tape & Reel packaging (2,046 pcs).

Selection Criteria:

For direct replacement in existing designs, select SN74ABT374ADWR (active status, full temperature range, ROHS3 compliant, highest inventory). For new designs requiring extended temperature operation and reduced quiescent current, evaluate CY74FCT374ATSOCT with system-level timing validation. Legacy 74LS alternatives are not recommended for new designs due to performance limitations.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT374ADW directly replace the obsolete 74ABT374AD,112?

A: Yes. Both components share identical electrical specifications within the 74ABT technology family, including voltage supply range (4.5V to 5.5V), operating temperature (-40°C to 85°C), output current ratings (32mA/64mA), and quiescent current (250 µA). Propagation delay difference (5.1ns vs 4.9ns) is within acceptable tolerance for most applications. Package form factor and pin configuration are identical (20-SOIC, 0.295" width).

Q: What is the difference between SN74ABT374ADW and SN74ABT374ADWR?

A: Both parts are electrically identical. The primary difference is packaging: ADW is supplied in Tube format, while ADWR is supplied in Tape & Reel (TR) format. ADWR has significantly higher inventory availability (4,839 pcs vs 993 pcs). Select based on your assembly process requirements and supply chain needs.

Q: Can 74FCT series parts substitute for 74ABT series?

A: Yes, with voltage supply range consideration. 74FCT parts (CY74FCT374ATSOC, CY74FCT374ATSOCT, 74FCT374CTSOG) maintain functional compatibility and identical package form factor. However, voltage supply range narrows from 4.5V-5.5V to 4.75V-5.25V. Propagation delay increases to 6.5ns. These parts are suitable for applications operating within the narrower voltage window and where slightly increased propagation delay is acceptable.

Q: Is the 20-SOIC (0.209", 5.30mm Width) package of SN74LS374NSR compatible with the original part?

A: No. While SN74LS374NSR shares the same functional specification and 20-SOIC designation, the physical package width differs (5.30mm vs 7.50mm). This dimensional difference prevents direct board-level substitution. Additionally, SN74LS374NSR exhibits significantly reduced performance (28ns propagation delay, 50 MHz clock frequency, 0°C to 70°C temperature range).

Q: What compliance certifications should I verify for substitute parts?

A: All recommended substitute parts carry ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Verify ROHS3 status for your specific application requirements. All parts listed are classified under ECCN EAR99 and HTSUS 8542.39.0001 for export control purposes.

Q: Which substitute part offers the best performance match to the original 74ABT374AD,112?

A: SN74ABT374ADWR provides the closest performance match. It maintains identical electrical specifications (voltage, temperature range, output current, quiescent current) and minimal propagation delay increase (5.1ns vs 4.9ns). Active product status ensures long-term availability and supply continuity.