74ACTQ16373SSC Equivalent & Substitute Parts

Part Overview

The 74ACTQ16373SSC is a D-Type Transparent Latch IC with 2 independent channels, 8:8 configuration, and tri-state output capability. Manufactured by onsemi in a 48-SSOP surface mount package, this component is classified as obsolete. Due to its discontinued status, identifying functionally equivalent substitute parts is essential for design continuity and procurement planning.

Substiute Parts

74ACTQ16373SSC

onsemiIn Stock: 119974ACTQ16373SSC Datasheet

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74ACT16373DL

Texas InstrumentsIn Stock: 294074ACT16373DL Datasheet

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74ACT16373DLR

Texas InstrumentsIn Stock: 171474ACT16373DLR Datasheet

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SN74ACT16373QDLREP

Texas InstrumentsIn Stock: 712SN74ACT16373QDLREP Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 74ACTQ16373SSC are identified based on strict electrical and mechanical compatibility criteria. The following parameters must match or be compatible:

• Logic Type: D-Type Transparent Latch (2 channel, 8:8 configuration)
• Output Type: Tri-State
• Voltage Supply Range: 4.5V ~ 5.5V
• Package: 48-BSSOP surface mount
• Independent Circuits: 2

The substitute parts listed below maintain these core functional parameters. Variations in propagation delay, output current, and operating temperature range are noted where they differ from the main part.

Parameter Comparison

Engineering Selection Recommendations

All three Texas Instruments substitute parts maintain functional equivalence with the 74ACTQ16373SSC across core electrical and mechanical parameters. Selection should be based on product availability and compliance requirements:

74ACT16373DL is classified as Last Time Buy, indicating limited future availability. This part is suitable for applications requiring immediate procurement but should not be selected for long-term production designs.

74ACT16373DLR is an active product available in Cut Tape and Digi-Reel packaging formats. This part is recommended for production designs requiring standard packaging options and ongoing supply assurance.

SN74ACT16373QDLREP is an active product with extended operating temperature range (-40°C ~ 125°C) and is available in Tape & Reel packaging. This part is suitable for applications requiring higher temperature operation. Output current is specified at 16mA (versus 24mA for other variants), which must be evaluated against circuit requirements.

All substitute parts are ROHS3 compliant and carry identical REACH and ECCN classifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can the 74ACT16373DL, 74ACT16373DLR, and SN74ACT16373QDLREP be used interchangeably with the 74ACTQ16373SSC?

A: Yes, within the constraints of their specified parameters. All three parts share identical logic type, circuit configuration, output type, voltage supply range, and package specifications. Propagation delay differences (9.3ns versus 5.3ns) and output current variations must be evaluated against specific circuit timing and drive requirements.

Q: What is the significance of the propagation delay difference between the main part and substitutes?

A: The 74ACTQ16373SSC specifies 5.3ns propagation delay, while all Texas Instruments substitutes specify 9.3ns. This 4ns difference may impact timing-critical applications. Circuit designs must be analyzed to determine if the longer delay is acceptable.

Q: Does the SN74ACT16373QDLREP output current specification of 16mA affect compatibility?

A: Output current capability must be evaluated against load requirements. The SN74ACT16373QDLREP provides 16mA per output, compared to 24mA for other variants. Applications requiring maximum drive current should use 74ACT16373DL or 74ACT16373DLR.

Q: What is the advantage of the SN74ACT16373QDLREP extended temperature range?

A: The SN74ACT16373QDLREP operates to 125°C, compared to 85°C for other variants. This extended range is suitable for high-temperature environments or applications with thermal margin requirements.

Q: Are there packaging differences between the substitute parts?

A: 74ACT16373DL is supplied in Tube packaging. 74ACT16373DLR is available in Cut Tape and Digi-Reel formats. SN74ACT16373QDLREP is supplied in Tape & Reel packaging. Package selection should align with assembly and procurement processes.

Q: What is the product status significance for long-term design planning?

A: 74ACT16373DL is Last Time Buy, indicating no future production. 74ACT16373DLR and SN74ACT16373QDLREP are Active products with ongoing availability. For new designs or long-term production, 74ACT16373DLR or SN74ACT16373QDLREP are recommended.