74ABT374CSJX Equivalent & Substitute Parts

Part Overview

The 74ABT374CSJX is a D-Type flip-flop logic integrated circuit manufactured by onsemi, featuring 1 element with 8-bit positive edge triggering capability. This component operates at 200 MHz clock frequency with tri-state, non-inverted output configuration in a 20-SOIC surface mount package. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring this functional specification.

Substiute Parts

74ABT374CSJX

onsemiIn Stock: 115474ABT374CSJX Datasheet

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SN74ABT374ADW

Texas InstrumentsIn Stock: 1053SN74ABT374ADW Datasheet

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SN74ABT374ADWR

Texas InstrumentsIn Stock: 4917SN74ABT374ADWR Datasheet

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SN74ABT374ANSR

Texas InstrumentsIn Stock: 5341SN74ABT374ANSR Datasheet

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SN74LS374DW

Texas InstrumentsIn Stock: 2207SN74LS374DW Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT374CSJX is determined by the following critical parameters:

Primary Compatibility Criteria:

• D-Type flip-flop architecture with 1 element, 8-bit configuration
• Positive edge trigger mechanism
• Tri-state, non-inverted output type
• 200 MHz clock frequency capability
• 4.5V ~ 5.5V supply voltage range
• -40°C ~ 85°C operating temperature range
• Surface mount 20-SOIC package format

Substitute Categories:

Category A - Direct Functional Equivalents (74ABT Series): SN74ABT374ADW, SN74ABT374ADWR, and SN74ABT374ANSR from Texas Instruments maintain identical functional specifications, clock frequency, output configuration, and supply voltage parameters. These parts are active products with RoHS3 compliance.

Category B - Legacy Functional Equivalent (74LS Series): SN74LS374DW provides functional compatibility but operates at reduced clock frequency (50 MHz) and different electrical characteristics. This part is discontinued at DiGi Electronics and suitable only for applications not requiring 200 MHz performance.

Parameter Comparison

Engineering Selection Recommendations

For applications requiring 200 MHz performance with active product support:

SN74ABT374ADWR (Texas Instruments, Tape & Reel packaging) is the primary substitute. This part maintains identical functional specifications, clock frequency, and electrical characteristics as the 74ABT374CSJX. Active product status ensures ongoing availability and supply chain stability. RoHS3 compliance satisfies environmental regulatory requirements. Tape & Reel packaging supports high-volume manufacturing processes.

For applications with identical package dimensions:

SN74ABT374ANSR (Texas Instruments, Tape & Reel packaging) provides functional equivalence with matching 20-SOIC (0.209", 5.30mm Width) package dimensions. This part is active and RoHS3 compliant. Propagation delay of 6.6ns remains within acceptable performance parameters for most 200 MHz applications.

For applications with relaxed performance requirements:

SN74LS374DW (Texas Instruments, Tube packaging) functions as a substitute only in systems not requiring 200 MHz clock frequency. This part is discontinued at DiGi Electronics and should be considered only for legacy system maintenance. Reduced clock frequency (50 MHz), lower output current capability, and narrower operating temperature range (0°C ~ 70°C) limit applicability to new designs.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT374ADW replace 74ABT374CSJX in all applications?

A: SN74ABT374ADW provides functional equivalence for all 200 MHz D-Type flip-flop applications. However, the package dimensions differ: SN74ABT374ADW uses 20-SOIC (0.295", 7.50mm Width) versus the original 74ABT374CSJX at 20-SOIC (0.209", 5.30mm Width). PCB layout modifications may be required.

Q: What is the difference between SN74ABT374ADWR and SN74ABT374ADW?

A: Both parts are electrically identical. The primary difference is packaging format: SN74ABT374ADWR is supplied in Tape & Reel (TR) format for automated assembly, while SN74ABT374ADW is supplied in Tube format for manual handling. Select based on manufacturing process requirements.

Q: Is SN74LS374DW suitable for new designs?

A: SN74LS374DW is not recommended for new designs. The part is discontinued at DiGi Electronics, operates at only 50 MHz (versus 200 MHz for 74ABT variants), and has narrower operating temperature range (0°C ~ 70°C). Use only for legacy system maintenance where 200 MHz performance is not required.

Q: What are the key electrical differences between 74ABT and 74LS series?

A: The 74ABT series operates at 200 MHz clock frequency with 32mA/64mA output current capability. The 74LS series operates at 50 MHz with reduced output current (2.6mA/24mA). Supply voltage tolerance also differs: 74ABT accepts 4.5V ~ 5.5V while 74LS requires 4.75V ~ 5.25V.

Q: Are all substitute parts RoHS3 compliant?

A: All Texas Instruments substitutes (SN74ABT374ADW, SN74ABT374ADWR, SN74ABT374ANSR, SN74LS374DW) are RoHS3 compliant. The original 74ABT374CSJX RoHS status is not specified in available documentation.

Q: Which substitute has the shortest propagation delay?

A: SN74ABT374ADW and SN74ABT374ADWR both provide 5.1ns maximum propagation delay at 5V with 50pF load, compared to 5ns for the original part. SN74ABT374ANSR provides 6.6ns. All three 74ABT variants meet 200 MHz performance requirements.