74ACTQ16374SSCX Equivalent & Substitute Parts

Part Overview

The 74ACTQ16374SSCX 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 positive edge-triggered flip-flop with tri-state, non-inverted outputs, designed for digital logic applications requiring high-speed data storage and transfer.

The 74ACTQ16374SSCX is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades.

Substiute Parts

74ACTQ16374SSCX

onsemiIn Stock: 274374ACTQ16374SSCX Datasheet

Current PartRFQ

74ACT16374DLR

Texas InstrumentsIn Stock: 293274ACT16374DLR Datasheet

SimilarRFQ

SN74ACT16374QDLREP

Texas InstrumentsIn Stock: 930SN74ACT16374QDLREP Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 74ACTQ16374SSCX is determined by strict equivalence across the following critical parameters:

• Functional Type: D-Type flip-flop with dual 8-bit configuration
• Output Configuration: Tri-state, non-inverted outputs
• Trigger Mechanism: Positive edge-triggered
• Package: 48-BSSOP surface mount form factor
• Voltage Supply: 4.5V ~ 5.5V compatibility
• Electrical Performance: Clock frequency, propagation delay, output current, and quiescent current within acceptable operating ranges

The identified substitute parts maintain functional and electrical compatibility with the original 74ACTQ16374SSCX while offering improved product status and availability.

Parameter Comparison

Engineering Selection Recommendations

74ACT16374DLR (Texas Instruments) is the primary substitute for the 74ACTQ16374SSCX. Both parts share identical voltage supply ranges, package specifications, and functional configurations. The 74ACT16374DLR maintains active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Propagation delay and output current specifications remain within acceptable operational margins for most applications.

SN74ACT16374QDLREP (Texas Instruments) serves as an alternative substitute with extended operating temperature range (-40°C ~ 125°C). This part is suitable for applications requiring enhanced thermal performance. Output current is reduced to 16 mA per channel; applications requiring 24 mA output current must be evaluated for compatibility. This part is supplied in Tape & Reel packaging and maintains ROHS3 compliance.

Both substitute parts are manufactured by Texas Instruments, an established supplier with consistent quality and regulatory certifications. Selection between the two substitutes depends on specific application requirements regarding output current capacity and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16374DLR directly replace the 74ACTQ16374SSCX?

A: Yes. Both parts are dual 8-bit D-type flip-flops with tri-state, non-inverted outputs in 48-BSSOP packages. Functional and electrical parameters are compatible across the specified voltage supply range (4.5V ~ 5.5V) and operating temperature range (-40°C ~ 85°C).

Q: What is the difference between 74ACT16374DLR and SN74ACT16374QDLREP?

A: The primary differences are output current capacity (24 mA vs. 16 mA per channel) and operating temperature range (-40°C ~ 85°C vs. -40°C ~ 125°C). The SN74ACT16374QDLREP is supplied in Tape & Reel packaging, while the 74ACT16374DLR is available in Cut Tape & Digi-Reel format. Both are functionally equivalent for standard logic applications.

Q: Are there any performance differences in propagation delay?

A: The 74ACTQ16374SSCX specifies 7.9 ns maximum propagation delay at 5V with 50 pF load. The 74ACT16374DLR specifies 8.8 ns, and the SN74ACT16374QDLREP specifies 10.9 ns. These differences are within acceptable margins for most digital logic applications but should be evaluated for timing-critical designs.

Q: What is the quiescent current difference?

A: The 74ACTQ16374SSCX draws 80 µA quiescent current, while both Texas Instruments substitutes draw 8 µA. This represents a significant reduction in standby power consumption and is beneficial for battery-powered or low-power applications.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 74ACT16374DLR and SN74ACT16374QDLREP are ROHS3 compliant. The original 74ACTQ16374SSCX RoHS status is not specified in the provided data.

Q: Can I use SN74ACT16374QDLREP in applications requiring 24 mA output current?

A: The SN74ACT16374QDLREP is rated for 16 mA output current per channel. Applications requiring 24 mA output current must use the 74ACT16374DLR or evaluate load impedance to confirm compatibility.

Q: What packaging formats are available for these substitutes?

A: The 74ACT16374DLR is supplied in Cut Tape (CT) & Digi-Reel format. The SN74ACT16374QDLREP is supplied in Tape & Reel (TR) format. Both are surface mount 48-BSSOP packages with identical physical dimensions.