74ABT16373CSSCX Equivalent & Substitute Parts

Part Overview

The 74ABT16373CSSCX is a D-Type Transparent Latch 16-bit logic IC manufactured by onsemi, featuring 2 independent 8:8 channels with tri-state output capability. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The part operates within a 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP surface mount package.

Substiute Parts

74ABT16373CSSCX

onsemiIn Stock: 517474ABT16373CSSCX Datasheet

Current PartRFQ

CABT16373AMDLREP

Texas InstrumentsIn Stock: 807CABT16373AMDLREP Datasheet

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SN74ABT16373ADGGR

Texas InstrumentsIn Stock: 2133SN74ABT16373ADGGR Datasheet

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SN74ABT16373ADL

Texas InstrumentsIn Stock: 4412SN74ABT16373ADL Datasheet

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SN74ABT16373ADLR

Texas InstrumentsIn Stock: 3209SN74ABT16373ADLR Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 74ABT16373CSSCX is determined by the following critical parameters:

Core Compatibility Requirements:

• Logic Type: D-Type Transparent Latch
• Circuit Configuration: 8:8 (2 Independent Circuits)
• Output Type: Tri-State
• Voltage - Supply: 4.5V ~ 5.5V
• Package / Case: 48-BSSOP or 48-TFSOP (both 48-pin SSOP variants)
• Mounting Type: Surface Mount

Allowable Variations:

• Propagation Delay Time: Substitute parts may have different delay specifications (1.4ns to 4.1ns) provided the application timing requirements are met
• Current Output Ratings: Substitute parts may have different output current specifications (24mA/48mA to 32mA/64mA) provided the load requirements are satisfied
• Operating Temperature Range: Substitute parts may have extended temperature ranges (-55°C ~ 125°C) which are compatible with the original -40°C ~ 85°C specification
• Product Status: Active substitute parts are acceptable replacements for obsolete originals
• Packaging Format: Tape & Reel (TR), Cut Tape (CT), and Tube packaging formats are interchangeable for component selection purposes

All identified substitute parts maintain the 74ABT series designation and preserve functional equivalence within the specified electrical and mechanical parameters.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts (CABT16373AMDLREP, SN74ABT16373ADGGR, SN74ABT16373ADL, and SN74ABT16373ADLR) are manufactured by Texas Instruments and carry Active product status, providing long-term availability and supply chain stability compared to the obsolete onsemi original.

Compliance and Certification: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The original onsemi part does not specify RoHS compliance status.

Package Selection:

• SN74ABT16373ADGGR uses a 48-TFSOP package (0.240", 6.10mm width), which differs from the original 48-BSSOP package (0.295", 7.50mm width). This package variant requires PCB layout modification and is suitable only if board redesign is feasible.
• CABT16373AMDLREP, SN74ABT16373ADL, and SN74ABT16373ADLR all use the 48-BSSOP package, maintaining pin-for-pin compatibility with the original 74ABT16373CSSCX.

Performance Considerations: Substitute parts exhibit propagation delay times of 4.1ns compared to the original 1.4ns specification. Applications with critical timing requirements must confirm that the increased delay is acceptable. CABT16373AMDLREP provides reduced output current ratings (24mA/48mA versus 32mA/64mA), requiring load analysis to ensure compatibility.

Packaging Format:

• CABT16373AMDLREP: Tape & Reel (TR)
• SN74ABT16373ADGGR: Cut Tape (CT) & Digi-Reel
• SN74ABT16373ADL: Tube
• SN74ABT16373ADLR: Tape & Reel (TR)

Selection among these variants depends on procurement volume and assembly process requirements.

Frequently Asked Questions (FAQ)

Q: Can I directly replace the 74ABT16373CSSCX with any of the substitute parts?

A: Direct replacement is possible for CABT16373AMDLREP, SN74ABT16373ADL, and SN74ABT16373ADLR, as they maintain identical 48-BSSOP packaging and pin configuration. SN74ABT16373ADGGR requires PCB layout modification due to its 48-TFSOP package variant.

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

A: The original 74ABT16373CSSCX specifies 1.4ns propagation delay, while all Texas Instruments substitutes specify 4.1ns. This difference must be evaluated against application timing requirements. If the circuit operates with timing margins that accommodate the longer delay, substitution is acceptable. If timing is critical, delay analysis is necessary.

Q: Are all substitute parts suitable for high-temperature applications?

A: CABT16373AMDLREP operates across -55°C to 125°C, providing extended temperature range capability. The remaining substitutes (SN74ABT16373ADGGR, SN74ABT16373ADL, SN74ABT16373ADLR) maintain the original -40°C to 85°C operating range. Selection depends on application temperature requirements.

Q: What is the difference between the packaging formats offered?

A: Tape & Reel (TR) and Cut Tape (CT) formats are suitable for automated assembly processes. Tube packaging is appropriate for manual assembly or lower-volume applications. All formats contain identical components; selection is based on assembly methodology and procurement volume.

Q: Does the reduced output current of CABT16373AMDLREP affect compatibility?

A: CABT16373AMDLREP provides 24mA/48mA output current versus the original 32mA/64mA specification. Compatibility depends on the load impedance and current requirements of the driven circuits. If the application load requires current exceeding 24mA (high) or 48mA (low), this part is unsuitable. Load analysis is required for confirmation.

Q: Are all substitute parts RoHS compliant?

A: Yes, all four Texas Instruments substitute parts are ROHS3 compliant. The original onsemi part does not specify RoHS compliance status. For applications requiring RoHS certification, the Texas Instruments substitutes provide documented compliance.

Q: What is the inventory status of these substitute parts?

A: CABT16373AMDLREP: 785 Pcs; SN74ABT16373ADGGR: 2100 Pcs; SN74ABT16373ADL: 4325 Pcs; SN74ABT16373ADLR: 3120 Pcs. All parts are available as new original stock.