74ABT16374CSSC Equivalent & Substitute Parts

Part Overview

The 74ABT16374CSSC is a dual 8-bit D-type flip-flop logic integrated circuit manufactured by onsemi, housed in a 48-BSSOP surface mount package. This component functions as a standard edge-triggered storage element with tri-state, non-inverted outputs, operating at a clock frequency of 150 MHz. The part is currently classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

74ABT16374CSSC

onsemiIn Stock: 84774ABT16374CSSC Datasheet

Current PartRFQ

74FCT16374ATPVG8

Renesas Electronics CorporationIn Stock: 117374FCT16374ATPVG8 Datasheet

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CY74FCT162374ATPVC

Cypress Semiconductor CorpIn Stock: 8480CY74FCT162374ATPVC Datasheet

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CY74FCT162374CTPVC

Texas InstrumentsIn Stock: 2988CY74FCT162374CTPVC Datasheet

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CY74FCT16374CTPVC

Texas InstrumentsIn Stock: 2225CY74FCT16374CTPVC Datasheet

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SN74ABT16374ADGGR

Texas InstrumentsIn Stock: 3748SN74ABT16374ADGGR Datasheet

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SN74ABT16374ADL

Texas InstrumentsIn Stock: 3153SN74ABT16374ADL Datasheet

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SN74ABT16374ADLR

Texas InstrumentsIn Stock: 5678SN74ABT16374ADLR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT16374CSSC is determined by strict alignment with the following critical parameters:

Core Functional Requirements:

• D-Type flip-flop architecture with dual 8-bit configuration
• Tri-state, non-inverted output topology
• Positive edge trigger mechanism
• 48-pin SSOP package footprint compatibility

Electrical Compatibility Criteria:

• Supply voltage range: 4.5V – 5.5V
• Operating temperature: -40°C to +85°C
• Output drive capability: minimum 32 mA (high) / 64 mA (low)
• Propagation delay performance within acceptable system timing margins

Mechanical Compatibility:

• 48-BSSOP package (0.295", 7.50mm Width) for direct PCB footprint substitution

Substitute parts are grouped into two categories based on product status and performance characteristics: active production alternatives from Texas Instruments (74ABT series) and active alternatives from Renesas Electronics and Cypress Semiconductor (74FCT series). The 74FCT series exhibits lower quiescent current (500 µA vs. 2 mA) and reduced input capacitance, making these suitable for power-sensitive applications while maintaining functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Series, Active Status):

SN74ABT16374ADL and SN74ABT16374ADLR are the primary recommended substitutes. Both are manufactured by Texas Instruments within the 74ABT series and maintain identical functional specifications to the obsolete 74ABT16374CSSC. These parts feature improved propagation delay performance (4.7 ns vs. 6.2 ns), reduced input capacitance (4.6 pF vs. 5 pF), and carry ROHS3 compliance certification. SN74ABT16374ADLR is supplied in tape and reel packaging, while SN74ABT16374ADL is supplied in tube packaging. Both operate within the same voltage and temperature ranges with equivalent output drive capabilities.

For Power-Optimized Applications:

The 74FCT series alternatives (74FCT16374ATPVG8 from Renesas Electronics and CY74FCT162374ATPVC from Cypress Semiconductor) provide functional equivalence with significantly reduced quiescent current consumption (500 µA vs. 2 mA). These parts are suitable for battery-powered or low-power system designs. The 74FCT16374ATPVG8 maintains the same output drive specification (32 mA / 64 mA) as the main part, while CY74FCT162374ATPVC exhibits reduced output drive (24 mA / 24 mA), which may require system-level timing analysis for applications with heavy capacitive loads.

Compliance and Certification Considerations:

SN74ABT16374ADL, SN74ABT16374ADLR, and CY74FCT16374CTPVC carry ROHS3 compliance certification. The 74FCT16374ATPVG8 does not specify RoHS status. All recommended substitutes maintain MSL ratings of 1 (Unlimited) or 3 (168 Hours), suitable for standard manufacturing environments.

Frequently Asked Questions (FAQ)

Q: Can I use SN74ABT16374ADL as a direct replacement for 74ABT16374CSSC?

A: Yes. Both parts share identical functional specifications, package footprint (48-BSSOP), voltage supply range (4.5V – 5.5V), operating temperature range (-40°C to +85°C), and output drive characteristics (32 mA / 64 mA). SN74ABT16374ADL is an active production part from Texas Instruments, whereas the 74ABT16374CSSC is obsolete. The SN74ABT16374ADL exhibits superior propagation delay performance (4.7 ns vs. 6.2 ns).

Q: What is the difference between SN74ABT16374ADL and SN74ABT16374ADLR?

A: Both parts are functionally and electrically identical. The primary difference is packaging: SN74ABT16374ADL is supplied in tube packaging, while SN74ABT16374ADLR is supplied in tape and reel (TR) format. Selection depends on manufacturing process requirements and inventory management practices.

Q: Can I substitute a 74FCT series part for the 74ABT16374CSSC?

A: Functional substitution is possible. The 74FCT series maintains the same D-type flip-flop architecture, tri-state output topology, and 48-BSSOP package footprint. However, the 74FCT series exhibits lower quiescent current (500 µA vs. 2 mA), which may affect system power budgeting. Additionally, some 74FCT variants specify reduced output drive capability (24 mA / 24 mA vs. 32 mA / 64 mA), requiring timing analysis for applications with significant capacitive loading.

Q: Are all substitute parts RoHS compliant?

A: Not all. SN74ABT16374ADL, SN74ABT16374ADLR, and CY74FCT16374CTPVC carry explicit ROHS3 compliance certification. The 74FCT16374ATPVG8 from Renesas Electronics does not specify RoHS status in the provided data. Verify RoHS compliance requirements with your supply chain or regulatory documentation before final part selection.

Q: What is the MSL (Moisture Sensitivity Level) rating, and why does it matter?

A: MSL rating indicates the maximum time a component can be exposed to ambient moisture before soldering. The 74ABT16374CSSC and most recommended substitutes carry MSL 1 (Unlimited), meaning no moisture exposure restrictions. The 74FCT16374ATPVG8 carries MSL 3 (168 Hours), requiring component storage in dry conditions and limiting shelf life after packaging opening. For standard manufacturing environments, MSL 1 parts are preferred.

Q: Can I use CY74FCT162374ATPVC if my application requires 64 mA output current?

A: No. The CY74FCT162374ATPVC specifies output drive of 24 mA (both high and low), compared to the 74ABT16374CSSC specification of 32 mA / 64 mA. Applications requiring the full 64 mA output current must use parts with matching output drive specifications: SN74ABT16374ADL, SN74ABT16374ADLR, or 74FCT16374ATPVG8.

Q: What is the propagation delay difference, and does it affect my design?

A: The 74ABT16374CSSC specifies 6.2 ns maximum propagation delay at 5V with 50 pF load. The SN74ABT16374ADL and SN74ABT16374ADLR specify 4.7 ns, representing a 1.5 ns improvement. The 74FCT16374ATPVG8 specifies 6.5 ns. Propagation delay affects system timing margins and maximum operating frequency. Verify that substitute part propagation delay meets your system's timing budget before implementation.