74ABT16373CSSC Equivalent & Substitute Parts

Part Overview

The 74ABT16373CSSC is a D-Type Transparent Latch IC manufactured by onsemi, featuring 16-bit dual-channel 8:8 configuration with tri-state output capability. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement. The part operates within the 4.5V to 5.5V supply voltage range and is housed in a 48-SSOP surface mount package. Identifying compatible alternatives ensures design continuity and supply chain flexibility for applications requiring this logic function.

Substiute Parts

74ABT16373CSSC

onsemiIn Stock: 68274ABT16373CSSC Datasheet

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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 compatibility for the 74ABT16373CSSC is determined by the following critical parameters:

• Logic Function: All substitute parts must implement D-Type Transparent Latch with 2 Channel 8:8 configuration and tri-state output
• Supply Voltage: All candidates operate within 4.5V ~ 5.5V range
• Package Compatibility: Physical form factor and pin count must match or be mechanically compatible
• Electrical Performance: Output current ratings and propagation delay characteristics must support the application requirements
• Operating Temperature Range: Substitute parts must cover or exceed the required temperature specification
• Series Compatibility: All parts belong to the 74ABT logic family

The four identified substitute parts meet these criteria with varying product status, packaging options, and performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement)

SN74ABT16373ADLR, SN74ABT16373ADL, and CABT16373AMDLREP are functionally equivalent to the 74ABT16373CSSC. All three are manufactured by Texas Instruments with active product status, ensuring long-term availability and supply chain stability. These parts maintain identical logic function, circuit configuration, and tri-state output characteristics. The SN74ABT16373ADLR and SN74ABT16373ADL variants preserve the original 48-BSSOP package footprint, enabling direct PCB compatibility. All substitute parts are ROHS3 compliant, supporting environmental and regulatory requirements.

Package Consideration

SN74ABT16373ADGGR operates in a 48-TFSOP package (0.240", 6.10mm width) rather than the standard 48-BSSOP (0.295", 7.50mm width). This variant requires PCB layout modification and is suitable only when package size reduction is a design objective. The narrower package footprint is not mechanically interchangeable with the original 48-BSSOP configuration.

Output Current Differential

CABT16373AMDLREP exhibits reduced output current specifications (24mA high, 48mA low) compared to the main part and other substitutes (32mA high, 64mA low). This variant is suitable for applications with lower current drive requirements. Applications demanding full 32mA/64mA output capability should select SN74ABT16373ADLR, SN74ABT16373ADGGR, or SN74ABT16373ADL.

Temperature Range Extension

CABT16373AMDLREP provides an extended operating temperature range of -55°C to 125°C, exceeding the original -40°C to 85°C specification. This extended range supports applications requiring broader thermal operation.

Frequently Asked Questions (FAQ)

Q: Can SN74ABT16373ADGGR replace 74ABT16373CSSC directly on the PCB?

A: SN74ABT16373ADGGR uses a 48-TFSOP package (0.240" width) instead of the original 48-BSSOP package (0.295" width). Direct PCB substitution is not possible without layout modification. SN74ABT16373ADLR or SN74ABT16373ADL maintain the original package footprint and enable direct replacement.

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

A: The 74ABT16373CSSC specifies 1.4ns propagation delay, while all Texas Instruments substitutes specify 4.1ns. This 2.7ns difference may impact timing-critical applications. Verify that the application timing budget accommodates the longer delay before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. All four substitute parts (SN74ABT16373ADLR, SN74ABT16373ADGGR, SN74ABT16373ADL, and CABT16373AMDLREP) are ROHS3 compliant. The original 74ABT16373CSSC does not specify RoHS status.

Q: Which substitute part offers the best supply availability?

A: SN74ABT16373ADL provides the highest inventory level at 4,325 pieces. SN74ABT16373ADGGR offers 2,100 pieces, SN74ABT16373ADLR provides 3,120 pieces, and CABT16373AMDLREP supplies 785 pieces.

Q: Can CABT16373AMDLREP be used in high-current applications?

A: CABT16373AMDLREP is rated for 24mA output high and 48mA output low, which is 25% lower than the original specification. Applications requiring full 32mA/64mA output capability should use SN74ABT16373ADLR, SN74ABT16373ADGGR, or SN74ABT16373ADL instead.

Q: What packaging options are available for the substitute parts?

A: SN74ABT16373ADLR is supplied in Tape & Reel (TR), SN74ABT16373ADGGR in Cut Tape (CT) & Digi-Reel®, SN74ABT16373ADL in Tube, and CABT16373AMDLREP in Tape & Reel (TR). Select based on assembly process requirements and volume needs.